Showing posts sorted by relevance for query SILICA. Sort by date Show all posts
Showing posts sorted by relevance for query SILICA. Sort by date Show all posts

Thursday, June 01, 2023

SILICA IS USED AS FRACKING SAND
An Alberta miner's proposal to drill 7,200 wells near Winnipeg has rural residents on edge

Sio Silica wants to pump pure sand from aquifer that serves as drinking-water source for tens of thousands

CBC News · 
Posted: May 31, 2023 
Josh and Georgina Mustard, seen with their youngest child, Callie, hope Manitoba's Clean Environment Commission does not approve Sio Silica's proposal to extract sand from below the surface of southeastern Manitoba. (Gary Solilak/CBC)

An Alberta mining company wants to drill thousands of wells in southeastern Manitoba to remove millions of tonnes of sand in an aquifer that serves as the source of drinking water for tens of thousands of people.

Calgary-based Sio Silica is seeking provincial environmental approval to drill up to 7,200 wells to the east and southeast of Winnipeg over 24 years and extract up to 33 million tonnes of ultra-pure silica sand from about 50 metres below the surface.

The mining company says its proposal will inject billions of dollars into the Manitoba economy by tapping into a Canadian supply of a highly sought after raw material required for the production of solar panels, new batteries and semiconductors.

Hundreds of residents of southeastern Manitoba, however, fear the potential contamination of their drinking water by a mining process that's never been tried on this scale anywhere on Earth.

The commodity coveted by Sio Silica is ultrapure crystalline quartz, which is 99.85 per cent free of contaminants such as boron, thorium, uranium and other elements that diminish the industrial value of silica.

The sand below the surface of southeastern Manitoba is 99.85 per cent pure silica. 
(Gary Solilak/CBC)

"That sand is not easily obtainable around the world. The deposit in Manitoba is probably the largest high-purity, scalable deposit in the world," said Brent Bullen, Sio Silica's chief operating officer, during a visit to Winnipeg earlier in May.

A veteran mining industry executive who's worked in Canada, Kyrgyzstan, Qatar, Russia, Germany and Poland, Bullen said Sio Silica originally came to Manitoba in search of "frac sand" for use in horizontal oil drilling.
Sand producer shifts from oilpatch drilling to solar manufacturing with new facility in Manitoba

The company changed tack, he said, when it realized a vast quantity of critical minerals lies within a geological formation called the Winnipeg Sandstone Aquifer.
Seeking to drill 300 wells a year

Sio Silica proceeded to buy up subsurface mineral claims, mostly in an arc of land east of Winnipeg, where the sandstone aquifer is close enough to the surface to be reached by drilling conventional 16-inch-wide wells — yet still far enough below ground, the company claims, to prevent the surface from collapsing after sand is sucked out below.

The areas in yellow demarcate Sio Silica's subsurface mineral claims in southern Manitoba, according to documents filed with Manitoba's Clean Environment Commission. (CBC News Graphics)

In documents filed with the Clean Environment Commission (CEC), Manitoba's environmental regulator, Sio Silica intends to drill about 300 wells a year in Manitoba.

By injecting air into the pipe, sand would be extracted from each well for five to seven days. Outside the well, a slurry of sand and water would be piped to a processing facility planned for a former patch of forest south of Vivian, Man., in the Rural Municipality of Springfield, about 50 kilometres due east of Portage & Main.

Sio Silica's plan calls for the sand to be purified further at the processing plant and then shipped by rail to customers. Excess water would be cleaned and piped back underground.

WATCH | How the mining process would work:



How the mining would work
1 day ago
Duration0:32
How Sio Silica hopes to extract sand from below the surface of southeastern Manitoba.

Bullen calls the process "sustainable mining" and insists it will have no noticeable effect on the environment, unlike surface mining for lower-grade silica, which can leave scars behind on the surface and beaches bereft of sand.

Experts in geology, hydrology and water chemistry hired by the CEC are less enthused.
Manitoba orders public hearing on proposed silica sand mine in RM of Springfield


In reports prepared for the commission, they raise concerns about changes to water quality that may result from thousands of new wells that would puncture a relatively impermeable layer of shale, a crumbly sedimentary rock, on the way down into the sandstone aquifer.

Those additional wells, they say, will cause water from the Winnipeg Sandstone Aquifer to mingle with water above the shale, where the Red River Carbonate Aquifer has a different water chemistry.

"There will certainly be an exchange of groundwaters between the aquifers. There will be an irreversible change where mixing of these two aquifers will occur," a trio of engineers with the consulting firm KGS wrote in a report for the CEC.

'A precautionary approach is important'

The consultants also argued Sio Silica has only modelled subsurface water flows, without demonstrating them in the field, using a larger cluster of test wells.

Other consultants hired by the environmental regulator raised concerns about potential leaks of polyacrylamide, a chemical that would be used in the processing facility.

They also flagged what they considered a reluctance on the part of Sio Silica to consider the effects of improperly built or capped wells, as well as a failure to model how thousands of additional wells may interact with future residential or industrial development in southeastern Manitoba.

"Since groundwater is the main source of potable water for thousands of Manitobans, a precautionary approach is important," wrote Louis-Charles Boutin, an engineering consultant with Matrix Solutions, in a report for the Clean Environment Commission.

WATCH | What silica mining critics fear:


What silica mining critics fear
1 day ago
Duration0:31 What critics fear could happen if silica mining in southeastern Manitoba is approved.


Some Manitobans who draw their drinking water from the same aquifers are even more skeptical of Sio Silica's plans.

"This science has never been tried," said Bradley Simmons, an aircraft maintenance engineer who lives on 60 hectares of mostly wooded land a few kilometres west of Sio Silica's proposed processing facility.

"Getting approved for 25 years seems like a long time, and for something that has never been done before. Why couldn't we just do a couple years for trial purposes, test the well water and see what happens underneath us?"

Brad Simmons is in the process of rewilding 60 hectares of former agricultural land several kilometres west of the proposed silica-processing facility. He's concerned about groundwater contamination. (Travis Golby/CBC)

Simmons is one of several hundred Manitobans who registered opposition to Sio Silica's proposal during Clean Environment Commission hearings that took place in Anola, Beausejour and Steinbach in February and March.
Concerns mount in southeast Manitoba over proposed silica sand mining project near Vivian

Many are members of Our Line in the Sand, an organized opposition group that formed in 2020, after some property owners were told they could not subdivide their land because of mineral claims below.
'This project shouldn't even be considered'

Our Line in the Sand president Tangi Bell said it's shameful that successive NDP and Progressive Conservative governments shepherded the mining proposal along without notifying residents.

"Ethically, this project shouldn't even be considered. It is taking place directly in the only freshwater drinking source for southeast Manitoba," said Bell on her acreage, which sits a few kilometres northwest of the proposed silica-processing site.

"We should know better at this point in our lives to sacrifice, and they're asking us to sacrifice this water for decarbonization plans."

Tangi Bell is the president of Our Line in the Sand, a group that began organizing in 2020 against Sio Silica's mining proposal. (Travis Golby/CBC)

Greg Nesbitt, Manitoba's natural resources minister, declined to comment on the Sio Silica proposal while it remains before the Clean Environment Commission.

Bob Lagasse, the Progressive Conservative MLA for Dawson Trail, which encompasses the Vivian area, said he will abide by whatever the commission decides.

"When this project came across my desk at the beginning, I had already started pushing behind the scenes to have this go to the Clean Environment Commission, because it hasn't been done," said Lagasse in a phone interview.

"It's an unknown, right? So leave it to the experts to decide, and we'll have to look at their determination."

Patrick Therrien, the mayor of Springfield, called the deliberations volatile. Some residents with environmental concerns clashed with proponents of economic development, which includes a proposal by German company RTC to build a solar-panel manufacturing plant in Manitoba if Sio Silica's plans are approved.

"There's going to be people that are not happy with either decision that comes out from the CEC, and we just have to be prepared one way or the other," said Therrien.

'Once it's gone, it's gone'

The concerns are not just environmental. Georgina and Josh Mustard, who live with their eight children on 47 hectares of land immediately to the west of Sio Silica's proposed processing facility, are uneasy about the prospect of an industrial plant opening up in what used to be a relatively pristine forest.

"If this goes through, it's obviously going to affect us first, but it's going to affect thousands and thousands of people," Georgina Mustard said at a picnic table outside her home earlier in May.

"We bought this place to secure for our family and our kids and if this goes through and things go wrong, then what? Then we have to leave? We have to uproot everything we know?"

Josh Mustard, who has worked on oil and gas projects across Canada, said he's seen the effects of industrial spills first hand.

He also said he doesn't believe Sio Silica's claims about sustainability or the protection of groundwater.

"There's no replacing it. Like, once it's gone, it's gone. That's the problem with mining: you're removing a resource," he said.

"We have open silica here in Manitoba. So why aren't we chasing that, without disturbing aquifers and groundwater and residential areas?"

Bullen said he sat through the Clean Environment Commission hearings and listened to testimony from residents. He said some were victims of what he called misinformation about the possibility of earth collapsing around his company's proposed wells or wells being drilled without the consent of property owners.

No expert hired by the commission is concerned about collapses, he said. Sio Silica will only drill where property owners allow the activity, he added.

UGLY ILL FITTING SPORTS COAT

Brent Bullen, Sio Silica's chief operating officer, said the silica deposit below the surface of southeastern Manitoba is the largest high-quality deposit of its kind in the world. (Trevor Brine/CBC)

"It's fear: Fear of change, fear of the unknown," Bullen said. "When we went through the hearing, we watched a lot of emotion and we just had to listen to the emotion."
Company says it's using existing technology

Bullen said he's confident his company's consultants have laid out a case for the safety of the mining proposal, which he described as more proven and less experimental than opponents claim.

"What we've done is we've taken existing technologies and we've just applied them in a different manner," he said. "My argument is we've patented an application in a process of an existing technology and we just happen to be the first to patent it."

As for people who fear contamination of their wells, Bullen said there are already 20,000 holes drilled into the aquifer, which is greater than the number of wells Sio Silica would ever drill.

A test well near the proposed Sio Silica processing site is seen near a tarped mound of extracted silica. (Bartley Kives/CBC)

This argument does not cut it for Josh Mustard.

"Yeah, we're tapped into it, but we're not sucking sand out, doing mass destruction," he said.

If the Clean Environment Commission approves Sio Silica's proposal, Tangi Bell said Our Line in the Sand would launch a judicial review. But that would require fundraising, she said.

Sio Silica, meanwhile, has already sunk about $40 million into its Manitoba mining proposal.

The Clean Environment Commission must issue a decision about Sio Silica's plan by June 22.

Residents raise concerns over silica mining
Duration3:51
An Alberta mining company wants to drill thousands of wells east of Winnipeg. It wants to extract ultra-pure and highly valuable silica sand. The mining company says this could be worth billions for Manitoba but some rural residents fear sand mines will compromise their only source of drinking water.

Thursday, August 08, 2024

Why silica dust could become the 'new asbestos'
DW
08/08/24

If inhaled, silica dust from cut or drilled stone, can cause a fatal lung disease. Experts want better protections for workers exposed to it every day.

Daily exposure to silica dust, released from cement and stone, can lead to silicosis, which is a scarring and hardening of the lungs
Image: Md Rafayat Haque Khan/ZUMAPRESS/picture alliance

New limits to a person's daily exposure to silica dust in the construction, mining, dentistry and other industries could save about 13,000 lives worldwide.

That's what researchers in the UK recommend, having found that a worker's lifetime exposure to current, "acceptable" limits can result in serious risk of developing silicosis, a potentially fatal lung disease.

They warn that silicosis could become as big a health problem as exposure to asbestos.

"Our research supports the reduction of exposure to silica dust from 0.1 mg/m3 to 0.05 mg/m3 over a working day," said study author Patrick Howlett from London's Imperial College.

The study was published in the British Medical Journal title Thorax on August 8, 2024. It highlights a need for more data on silicosis risks because the total burden of the disease is unclear, especially in developing countries where data about silicosis is scarce.
What exactly is silicosis?

Silicosis is a respiratory disease which causes a hardening of the lungs. It is caused by silica dust or silica crystals, which are found in soil, sand, concrete, mortar, granite and artificial stone.

It is common in construction, mining, oil and gas extraction, kitchen engineering, dentistry, pottery and sculpting.

People working in these industries are often exposed to silica every day, and are at higher risk of developing silicosis as a result. The illness has, for instance, wreaked havoc in small mining communities in India.

Silicosis is a progressive disease and has no cure.


Why are workers inhaling silica?


When the materials are cut or drilled, crystalline silica is released into the air as a very fine dust. Workers breathe it in as they work, especially where industrial health and saftey standards are poor.

It can take a long time for silicosis to develop — typically 10 to 20 years of occupational exposure to silica dust.

"It's estimated that millions [of people] worldwide have silicosis, but data is very scarce. In the UK and Europe, we see hundreds of cases per year," Howlett told DW in an interview.

Silicosis can lead to other serious diseases, including lung cancer, but scientists aren't sure exactly how this happens. Some speculate that the silica dust forms deposits in the lungs and that those deposits cause persistent inflammation.

Call for silica dust exposure levels to be reduced

This new study, or meta-analysis, assessed eight existing studies that looked at the cumulative risk of silicosis.

The studies involved 8,792 cases of silicosis among 65,977 participants, and included evidence from x-ray analysis of lungs, postmortem examination results, and death certificates.

"We calculated the accumulated risk of silicosis over 40 years of work with exposure to silica dust. Most studies involved miners, and only two studies had non-miners," said Howlet.

The researchers found that if average exposure over a 40-year working lifetime in mining was halved, from 0.1 mg/m3 to 0.05 mg/m3, there would be a reduction of silicosis cases by 77%.

"It would also lower risk among non-miners, but the caveat was that [there were] only two studies included non-miners, so the data was less clear," said Howlett.
People working in the mining industry are likely to be exposed to high amounts of silica dust every day
Image: DW

Reducing silica dust exposure 'is achievable'

The UK's occupational limit for silica dust exposure is 0.1 mg/m3. That is in line with most European countries , including France, Austria, and Switzerland. Other countries, such as China, have much higher limits of around 1 mg/m3.

Lowering silica dust exposure limits to 0.05 mg/m3 would be in-line with US standards.

Howlett said it was an achievable goal to reduce silica dust exposure in the workplace. He cited experience from the US and Australia, where such health and safey meaures had proved effective.

Australia has banned the use of engineered stone due to its propensity to release high levels of silica dust when cut or drilled.

"There are established methods to follow, including using water suppression methods of foams and mists to precipitate dust out of air effectively, better ventilation, and personal protective equipment," said Howlett.

But he said the issue of silicosis was likely to be much worse in developing countries, where there are few or no safety measures for silica dust.

"Miners in developing countries are exposed to a lifetime's worth of dust in a year's work," he said.

Edited by: Zulfikar Abbany

Sources:

Relationship between cumulative silica exposure and silicosis: a systematic review and dose response meta-analysis. Published by Howlett et al. in the journal BMJ Thorax (August 2024) https://thorax.bmj.com/content/early/2024/07/04/thorax-2024-221447

Global and national burden and trends of mortality and disability-adjusted life years for silicosis, from 1990 to 2019: results from the Global Burden of Disease study 2019. Published by Chen S, Liu M, Xie F. in BMC Pulmonary Medicine (June 2022) https://bmcpulmmed.biomedcentral.com/articles/10.1186/s12890-022-02040-9

Saturday, May 02, 2026

How Pax Silica Could Multiply Philippines’s Economic Risks

The Philippines is no longer struggling with just huge corruption scandals and economic pressures. Pax Silica could turn it into a frontline state – like Taiwan.

by  | Apr 30, 2026 | 

With the U.S.-led Pax Silica framework, the Philippines is becoming a dual-use platform where military strategy and supply-chain restructuring are converging.

Over the past year, the Philippines has moved decisively into the front line of US–China friction, thanks to expanded access under the bilateral Enhanced Defense Cooperation Agreement (EDCA), large-scale military exercises near Taiwan-adjacent waters, and growing interoperability with U.S. forces.

The Philippines is transitioning toward a logistics hub in a possible regional contingency. What is new is that this military alignment is now paired with an economic architecture: Pax Silica.

Pax Silica, a risk multiplier

In April 2026, the Philippines joined the U.S.-led coalition designed to secure supply chains in semiconductors, AI infrastructure, and critical minerals. The centerpiece is the planned 4,000-acre “Economic Security Zone” in the Luzon Economic Corridor, intended as a hub for allied manufacturing and resource processing.

In the Philippines, Pax Silica is sold as an opportunity; a chance to climb the value chain, attract investment, and leverage mineral endowments. The country’s large nickel and cobalt reserves, its workforce, and its strategic location make it an attractive node in this emerging network. That’s the pitch.

In isolation, this could be a development breakthrough. But Pax Silica does not operate in isolation. It is explicitly designed to decouple supply chains from China and consolidate them within a U.S.-aligned bloc.

That means participation in a geoeconomic divide that could reshape trade flows, investment patterns, and political risk for decades.

Investment and trade risks         

The economic implications follow through several channels. First, investment. The Philippines will likely see targeted inflows tied to Pax Silica – particularly in minerals processing, electronics, and logistics.

But these inflows will be conditional and politically anchored. Meanwhile, broader investment will face rising risk premiums as the country is reclassified from a conventional emerging market to a geopolitical frontline state.

Investors will not ignore the fact that key infrastructure now serves both commercial and strategic purposes.

Second, trade. The Philippines’ economic structure is deeply entangled with China, which absorbs the majority of its raw nickel exports and remains a major trading partner.

Pax Silica’s goal of rerouting supply chains away from China is likely to amplify trade diversion and friction.

Corruption and militarization of infrastructure        

Third, energy and supply vulnerability. In a gray-zone escalation, even limited economic leverage by an adversary could trigger inflation shocks in the import-dependent economy.

In the short term, Pax Silica increases exposure to retaliatory pressure.

In the Philippines, the Iran crisis has caused a severe crisis and national energy emergency. But it pales in comparison to the possible long-term implications of Pax Silica.

Fourth, and most critically, the Philippines enters this transition with weak state capacity, as evidenced by large-scale corruption in infrastructure projects.

This matters because Pax Silica and military alignment both depend on the same foundations: ports, logistics corridors, energy systems, and procurement processes. Since these are known to be compromised by corruption and inefficiency, the risks are magnified.

Bases, ports, and industrial zones linked to Pax Silica are no longer just economic assets. They are now potential strategic targets in an escalation scenario.

Economic backbone as a dual-use target      

In light of Pax Silica, the Philippine map of expanding military targets no longer consists only of traditional bases like EDCA sites. It now includes:

  • Northern Luzon and Batanes corridor: proximity to Taiwan, staging ground for logistics and surveillance
  • Subic–Clark–Manila–Batangas axis (Luzon Economic Corridor): now the core of Pax Silica industrial development and transport infrastructure
  • New Clark City: likely site of the 4,000-acre economic security zone, combining industrial and logistical functions
  • Major ports and energy nodes integrated into allied supply chains

These are dual-use targets: both economic assets and strategic infrastructure.

Pax Silica effectively expands the definition of what counts as a “target” from purely military installations to the broader economic backbone of the country.

So, where do we go from here?

Ominous scenarios          

In the Managed Alignment scenario, the country deepens its role in both military and supply-chain networks without triggering major conflict. Growth continues at a moderate pace – roughly 4.5 to 5.5% – but below potential. Pax Silica delivers selective gains, but these are offset by higher risk premiums and trade frictions.

In the Gray-Zone Escalation scenario, tensions intensify without open war. Economic coercion, supply disruptions, and political pressure become routine. Growth slows to 3–4% percent, investment stagnates, and volatility increases.

This is the path to long-term underperformance. Its main beneficiaries are military and security elites and oligarchic dynasties that own the strategic infrastructure.

The Marcos Jr government likely sees itself in a mild Managed Alignment scenario. In terms of economic realities, it may be somewhere between that scenario and the Gray-Zone Escalation scenario.

There is also a third possible scenario, Strategic Rebalancing. It seeks to reduce exposure while emphasizing ASEAN neutrality. It would offer the best economic outcomes to the Filipino people.

Launched by former president Duterte, it is currently a low-proHow Pax Silica Could Multiply Philippines’s Economic Risks

The Philippines is no longer struggling with just huge corruption scandals and economic pressures. Pax Silica could turn it into a frontline state – like Taiwan.

by Dan Steinbock | Apr 30, 2026 | 1 Comment


With the U.S.-led Pax Silica framework, the Philippines is becoming a dual-use platform where military strategy and supply-chain restructuring are converging.


Over the past year, the Philippines has moved decisively into the front line of US–China friction, thanks to expanded access under the bilateral Enhanced Defense Cooperation Agreement (EDCA), large-scale military exercises near Taiwan-adjacent waters, and growing interoperability with U.S. forces.


The Philippines is transitioning toward a logistics hub in a possible regional contingency. What is new is that this military alignment is now paired with an economic architecture: Pax Silica.


Pax Silica, a risk multiplier


In April 2026, the Philippines joined the U.S.-led coalition designed to secure supply chains in semiconductors, AI infrastructure, and critical minerals. The centerpiece is the planned 4,000-acre “Economic Security Zone” in the Luzon Economic Corridor, intended as a hub for allied manufacturing and resource processing.


In the Philippines, Pax Silica is sold as an opportunity; a chance to climb the value chain, attract investment, and leverage mineral endowments. The country’s large nickel and cobalt reserves, its workforce, and its strategic location make it an attractive node in this emerging network. That’s the pitch.


In isolation, this could be a development breakthrough. But Pax Silica does not operate in isolation. It is explicitly designed to decouple supply chains from China and consolidate them within a U.S.-aligned bloc.


That means participation in a geoeconomic divide that could reshape trade flows, investment patterns, and political risk for decades.


Investment and trade risks         


The economic implications follow through several channels. First, investment. The Philippines will likely see targeted inflows tied to Pax Silica – particularly in minerals processing, electronics, and logistics.


But these inflows will be conditional and politically anchored. Meanwhile, broader investment will face rising risk premiums as the country is reclassified from a conventional emerging market to a geopolitical frontline state.


Investors will not ignore the fact that key infrastructure now serves both commercial and strategic purposes.


Second, trade. The Philippines’ economic structure is deeply entangled with China, which absorbs the majority of its raw nickel exports and remains a major trading partner.


Pax Silica’s goal of rerouting supply chains away from China is likely to amplify trade diversion and friction.


Corruption and militarization of infrastructure        


Third, energy and supply vulnerability. In a gray-zone escalation, even limited economic leverage by an adversary could trigger inflation shocks in the import-dependent economy.


In the short term, Pax Silica increases exposure to retaliatory pressure.


In the Philippines, the Iran crisis has caused a severe crisis and national energy emergency. But it pales in comparison to the possible long-term implications of Pax Silica.


Fourth, and most critically, the Philippines enters this transition with weak state capacity, as evidenced by large-scale corruption in infrastructure projects.


This matters because Pax Silica and military alignment both depend on the same foundations: ports, logistics corridors, energy systems, and procurement processes. Since these are known to be compromised by corruption and inefficiency, the risks are magnified.


Bases, ports, and industrial zones linked to Pax Silica are no longer just economic assets. They are now potential strategic targets in an escalation scenario.


Economic backbone as a dual-use target      


In light of Pax Silica, the Philippine map of expanding military targets no longer consists only of traditional bases like EDCA sites. It now includes:


Northern Luzon and Batanes corridor: proximity to Taiwan, staging ground for logistics and surveillance

Subic–Clark–Manila–Batangas axis (Luzon Economic Corridor): now the core of Pax Silica industrial development and transport infrastructure

New Clark City: likely site of the 4,000-acre economic security zone, combining industrial and logistical functions

Major ports and energy nodes integrated into allied supply chains

These are dual-use targets: both economic assets and strategic infrastructure.


Pax Silica effectively expands the definition of what counts as a “target” from purely military installations to the broader economic backbone of the country.


So, where do we go from here?




Ominous scenarios          


In the Managed Alignment scenario, the country deepens its role in both military and supply-chain networks without triggering major conflict. Growth continues at a moderate pace – roughly 4.5 to 5.5% – but below potential. Pax Silica delivers selective gains, but these are offset by higher risk premiums and trade frictions.


In the Gray-Zone Escalation scenario, tensions intensify without open war. Economic coercion, supply disruptions, and political pressure become routine. Growth slows to 3–4% percent, investment stagnates, and volatility increases.


This is the path to long-term underperformance. Its main beneficiaries are military and security elites and oligarchic dynasties that own the strategic infrastructure.


The Marcos Jr government likely sees itself in a mild Managed Alignment scenario. In terms of economic realities, it may be somewhere between that scenario and the Gray-Zone Escalation scenario.


There is also a third possible scenario, Strategic Rebalancing. It seeks to reduce exposure while emphasizing ASEAN neutrality. It would offer the best economic outcomes to the Filipino people.


Launched by former president Duterte, it is currently a low-probability scenario. An election triumph by Vice President Sara Duterte would make it topical again.


Brave new Philippines?  


The most immediate challenge is a status quo in which the Gray-Zone Escalation would morph into a Taiwan conflict spillover. Unfortunately, the Philippines’ new dual role – as a military hub and a Pax Silica supply-chain node – amplifies its exposure.


Economic contraction, capital flight, and infrastructure disruption would follow, as the very assets intended to drive growth become liabilities.


The Philippines is entering a new phase of moderate growth under persistent geopolitical drag, where gains from integration into allied supply chains are offset by higher risk, reduced flexibility, and ongoing governance challenges.


The real cost of the current path would be a transformation into a frontline node in potential Taiwan conflict, where every Philippine port, factory, and corridor carries both economic promise and strategic risk.


The original commentary was published by The Manila Times on April 27, 2026.


If you liked this article, please support Antiwar.com.

We are 100% reader-supported.

Dr. Dan Steinbock is an internationally recognized visionary of the multipolar world and the founder of Difference Group. He has served at the India, China and America Institute (US), Shanghai Institutes for International Studies (China) and the EU Center (Singapore). For more, see https://www.differencegroup.net bability scenario. An election triumph by Vice President Sara Duterte would make it topical again.

Brave new Philippines?  

The most immediate challenge is a status quo in which the Gray-Zone Escalation would morph into a Taiwan conflict spillover. Unfortunately, the Philippines’ new dual role – as a military hub and a Pax Silica supply-chain node – amplifies its exposure.

Economic contraction, capital flight, and infrastructure disruption would follow, as the very assets intended to drive growth become liabilities.

The Philippines is entering a new phase of moderate growth under persistent geopolitical drag, where gains from integration into allied supply chains are offset by higher risk, reduced flexibility, and ongoing governance challenges.

The real cost of the current path would be a transformation into a frontline node in potential Taiwan conflict, where every Philippine port, factory, and corridor carries both economic promise and strategic risk.

The original commentary was published by The Manila Times on April 27, 2026.

Dr. Dan Steinbock is an internationally recognized visionary of the multipolar world and the founder of Difference Group. He has served at the India, China and America Institute (US), Shanghai Institutes for International Studies (China) and the EU Center (Singapore). For more, see https://www.differencegroup.net 

Wednesday, March 06, 2024

 

Scientists reveal molecular mysteries to control silica scaling in water treatment


Peer-Reviewed Publication

DOE/OAK RIDGE NATIONAL LABORATORY

Silica scaling in industrial water treatment systems 

IMAGE: 

SILICA SCALING IN INDUSTRIAL WATER TREATMENT SYSTEMS OCCURS WHEN DISSOLVED SILICA PRECIPITATES OUT, FORMING SOLID DEPOSITS THAT REDUCE EQUIPMENT EFFICIENCY AND LIFE SPAN, INCREASE MAINTENANCE COSTS AND RISK SYSTEM FAILURES.

view more 

CREDIT: ADAM MALIN/U.S. DEPT. OF ENERGY





Collaborative research that combined experiments at Yale University and molecular dynamics simulations at the Department of Energy’s Oak Ridge National Laboratory provides new insights into solving a major technical obstacle to efficient and sustainable industrial operations.

Silicon is the second most abundant element in the Earth’s crust, and in natural water sources it is commonly found in the form of dissolved silicic acid. Under certain pH and temperature conditions in industrial feed water, the acid can become oversaturated and insoluble, precipitating a substance, called silica scale, that encrusts equipment. This unwanted coating fouls the surfaces of various engineering systems, such as reverse osmosis desalination water-treatment membranes, heat exchanger components and plant pipelines.

“One way to combat the silica is to adjust the pH of the water, but this process is quite expensive and makes other forms of inorganic scaling, such as gypsum and calcite, worse,” said ORNL’s Vyacheslav “Slava” Bryantsev. “Recently, people have been using silica-inhibiting polymers, or antiscalants, all of which are proprietary. We know these antiscalants are possibly a class of polyamine-type systems that somewhat impede silica scaling, but how they work and how to improve on their existing properties have been poorly understood.”

Previous studies on the performance of polymeric silica antiscalants have varied widely from hindering to accelerating the formation of silica scale. “Ours was the first systematic investigation into the role of molecular structures and functional groups of polymeric antiscalants in stabilizing oversaturated silicic acid solutions,” Bryantsev said.

A paper titled “Molecular Design of Functional Polymers for Silica Scale Inhibition” published in Environmental Science & Technology provides details of the study.

The Yale scientists synthesized a series of nitrogen-containing polymers as silica antiscalants and tested their performance in an oversaturated silicic acid solution. They discovered enormous differences in effectiveness among similar types of antiscalants.

“Working closely with our colleagues at ORNL, we were able to determine that the variations were due to the specific physical and chemical properties of the polymers,” Yale’s Masashi Kaneda said. “The approach and the outcome are notable because we provided an understanding of the mechanisms involved in mitigating silica scaling through the use of polymeric antiscalants in water treatment processes.”

A polymer is a large molecule composed of repeating units, called monomers, that are linked together by chemical bonds to form a structural chain, or backbone. As monomers containing functional groups engage in a polymerization reaction, they merge into a larger polymer, imparting distinct functionalities to the resulting structural chain.

Water-soluble chemical compounds called amines and amides are incorporated into polymers to form antiscalants because of their ability to stabilize and suspend silica. When a positively charged hydrogen ion is added to an amine molecule, the amine is said to be protonated. Protonation can increase the molecule’s water solubility and reactivity.

In the Yale-ORNL study, the scientists discovered that polymers with charged amine and uncharged amide groups in their backbones exhibit superior silica scale inhibition performance, retaining up to 430 parts per million of reactive silica intact for eight hours under neutral pH conditions. However, monomers of these amine- and amide-containing polymers, along with polymers containing only amine and amide functionalities, presented insignificant inhibition.

“We needed to answer why the polymers we designed for the experiment worked, while the monomers did not,” said ORNL’s Deng Dong. “To identify the design parameters, we conducted molecular dynamics simulations that we believed would enable us to understand the mechanisms behind the phenomena.”

The simulations revealed strong binding between the deprotonated silicic acid and a polymer when the amine groups in the polymer were protonated.

“ORNL’s contribution enabled us to discover that certain functional groups in the polymer chain synergistically contribute to the scale inhibition process,” said Yale’s Mingjiang Zhong.

Zhong added that silica scaling is quite different from other scaling processes.

“Although current efforts are focused on solving the silica scale problem through the water-treatment process, the ideal case will be to add one type of antiscalant to inhibit all types of scale formation, not just silica,” Zhong said. “However, to the best of our knowledge, so far there is no such antiscalant. The molecular understanding we gained from our research will guide us toward discovering a universal solution.”

This study was supported by the National Alliance for Water Innovation, funded by DOE’s Office of Energy Efficiency and Renewable Energy, Industrial Efficiency and Decarbonization Office. This research used resources of the Oak Ridge Leadership Computing Facility at ORNL and resources of the National Energy Research Scientific Computing Center located at Lawrence Berkeley National Laboratory. OLCF and NERSC are DOE Office of Science user facilities.

UT-Battelle manages ORNL for DOE’s Office of Science. The single largest supporter of basic research in the physical sciences in the United States, the Office of Science is working to address some of the most pressing challenges of our time. For more information, please visit energy.gov/science.

This illustration shows the attraction between silica (orange diamonds), or silicic acid, and a polymeric antiscalant. The chemical interactions, which involve so-called charge-assisted hydrogen bonding, inhibit silica scaling.

CREDIT

Masashi Kaneda/Yale University