Solutions pillar
PFAS, heavy metals, nutrients, and microplastics are removed by adsorption media whose performance is set by surface area and pore structure, not by the name on the bag. This pillar covers how utilities and industrial buyers spec PFAS-removal media, weigh biochar against granular activated carbon, and run an RFQ that returns comparable bids with the disposal pathway confirmed up front.
- PFAS removal media
- BET surface area, ASTM D6556
- Biochar vs GAC
- Spent-media disposal confirmed
In this pillar
Start here
The media does not care what you call it.
Adsorption media for water treatment is scored on physics: BET surface area in square meters per gram, pore-size distribution, iodine number as a practical adsorption proxy, and particle size that sets flow rate and pressure drop in a column. Two products with the same trade name can perform very differently, and two products with different names can perform the same. The spec, not the label, decides the buy.
That is why this pillar treats biochar and granular activated carbon as candidates in the same RFQ rather than rivals. GAC has the deeper regulator-accepted track record for stringent potable PFAS targets. Filtration-grade biochar can be cost-competitive in blended, polishing, and stormwater roles. The honest answer for any given water is: pilot on the actual water, then compare on adsorption capacity per dollar with the disposal pathway priced in.
What we source for
Four water-treatment applications, one RFQ engine.
Each application changes the contaminant target and the acceptance criteria. The materials and the disposal logic stay constant.
The 90-day wedge
PFAS removal
Municipal and industrial PFAS treatment where the media choice is scored against EPA limits and a confirmed spent-media disposal pathway. The lowest bid is not the one that becomes a hazardous-waste problem.
- Adsorption capacity on a named method
- BET surface area and iodine number
- EPA PFAS MCL alignment where applicable
- Spent-media disposal or regeneration confirmed
Utility RFQ intent
Media sourcing for utilities
A spec-controlled RFQ for municipal and industrial water buyers who need comparable bids across producers, with performance claims verified and the disposal route priced into the comparison.
- One spec issued to every producer
- Performance verified, not asserted
- Disposal pathway in the bid comparison
- Escalation to the enterprise path at scale
Brand thesis
Microplastic and nanoplastic removal
Filtration of microplastics and nanoplastics from water sits at the core of the ECS thesis. Biochar adsorption and chitosan flocculation are the two science routes; spec the contaminant target and the media follows.
- Sub-100nm filtration targets
- Biochar adsorption media
- Chitosan flocculation and coagulation
- Tied to the micro-plastic removal pillar
Industrial
Heavy metals and nutrients
Lead, mercury, and nutrient pollution in municipal, industrial, and stormwater streams. Filtration-grade biochar and other media are scored on adsorption capacity and a per-batch lab report.
- Target metal or nutrient ceilings
- Adsorption capacity per dollar
- Per-batch lab report in the RFQ
- Disposal pathway for loaded media
The guides behind this pillar
Water-treatment sourcing guides.
Vendor-neutral guides on how to spec the media, weigh the candidates, and run the RFQ.
Comparison
Biochar for PFAS Removal vs GAC
What the spec actually decides when filtration-grade biochar competes with granular activated carbon on PFAS.
B2B / RFQ
PFAS Water-Treatment Media Sourcing RFQ
An RFQ guide for utilities and industrial buyers, with the spec dimensions and the spent-media disposal logic.
B2B sourcing
Industrial Biochar Sourcing RFQ Guide
How to run an RFQ for state, municipal, and country-level volume, with a spec template and cost drivers.
Buyer’s guide
The 2026 Biochar Buyer’s Guide
How to spec biochar by use case, including the water-filtration grade and its surface-area requirements.
Where the media comes from
The technology and pillars behind the water work.
How ECS handles water buyers.
For utility and municipal buyers we write the contaminant ceilings and the regeneration or disposal route into the spec, verify performance claims against named test methods, and escalate to the enterprise path at utility scale. We tell you where a producer’s claim is unverified rather than sell around the gap.
- Contaminant ceilings written into the spec.
- Performance verified on a named test method.
- Spent-media disposal priced into the comparison.
Ready to source
Turn your water chemistry into comparable bids.
Give us the contaminant targets and the volume. We run a controlled RFQ, verify the performance, confirm the disposal pathway, and return bids you can compare line for line.
Questions buyers ask
Frequently asked questions.
Can biochar remove PFAS as well as granular activated carbon?
It can for the right water chemistry and the right grade, because performance is governed by BET surface area, pore structure, and particle size rather than the material name. GAC has the deeper regulator-accepted PFAS track record for stringent potable targets; filtration-grade biochar can be cost-competitive in blended, polishing, and stormwater roles. Pilot on the actual water before committing.
What spec dimensions decide a water-treatment media buy?
Adsorption capacity on a named test method, BET surface area and iodine number, particle size for flow rate and pressure drop, the target contaminant ceilings, and a confirmed spent-media disposal or regeneration pathway. The lowest bid is not a bargain if it becomes a hazardous-waste liability.
Why does spent-media disposal belong in the RFQ?
Media that has adsorbed PFAS or heavy metals can become a regulated waste. Confirming the regeneration or disposal route up front, in the RFQ, prevents a purchase from turning into a downstream disposal liability after the media is exhausted.
Does ECS sell water-treatment media?
No. ECS is a vendor-neutral routing desk. We translate your water chemistry and contaminant targets into a controlled spec, run the RFQ across qualified producers, verify performance claims, and confirm the disposal pathway, then return comparable bids.