ActiCH4R™.H₂O

Advanced Ammonia
Polishing & Nutrient Recovery

Helping anaerobic digestion and wastewater operators reduce ammonia
pressure, support compliance, and recover valuable nutrients from liquid
waste streams.

Over 99.9% ammonia removal in lab and trial conditions
Recovers nitrogen, NPK and micronutrients for reuse
Supports cleaner liquid streams and circular nutrient recovery

Explore ActiCH4R™.H₂O

Anaerobic Digestion

Wastewater Treatment

Liquid Digestate

Agricultural Runoff

The problem

Ammonia in Liquid Waste Is
More Than a Treatment Issue

Ammonia in digestate and wastewater can create operational, environmental and commercial pressure. Once ammonia is present in liquid waste streams, operators may face tighter discharge requirements, costly treatment routes, reduced nutrient value and increasing pressure to recover more from the waste they already manage.

Lost Nutrient Value

When nitrogen is treated only as a waste problem, valuable fertiliser potential can be lost from the agricultural system.

Treatment Pressure

High-ammonia liquid streams can place greater demand on wastewater treatment systems, polishing stages and discharge management.

Costly Treatment Routes

Ammonia removal can require expensive infrastructure, chemical treatment, stripping, scrubbing or biological retrofits.

Compliance Pressure

Operators are under growing pressure to meet environmental requirements around ammonia, nitrogen and water quality.

Circular Economy Pressure

AD and wastewater operators are increasingly expected to move beyond disposal and demonstrate better recovery of energy, water and nutrients.

The solution

Capture Ammonia. Recover Nutrients.

ActiCH4R™.H₂O is an activated biochar filtration system developed for ammonia polishing and nutrient recovery in liquid waste streams. As contaminated liquid passes through the media bed, ActiCH4R™.H₂O captures ammonium ions within the media matrix while cleaner water continues through the system.

The loaded media or regeneration stream can then support nutrient recovery, helping operators move from ammonia removal towards circular fertiliser value.

Treat the Liquid Stream

Liquid digestate, wastewater or runoff is passed through the ActiCH4R™.H₂O media bed.

Capture Ammonia

The active media captures ammonium ions using cation exchange and adsorption mechanisms.

Recover Nutrient Value

Nitrogen, NPK and micronutrients are retained for potential recovery and agricultural reuse.

Support Cleaner Output

The treated liquid stream leaves with reduced ammonia pressure, supporting downstream treatment, compliance and reuse pathways.

Contaminated liquid in

High-ammonia liquid waste enters the system.

Cleaner liquid out

Lower-ammonia liquid leaves the system.

Activated biochar media

High-surface-area biochar engineered for cation exchange and adsorption of ammonium ions, enabling efficient ammonia capture and nutrient recovery.

Condition	ActiCH4R™.H₂O	Conventional Activated Carbon	Why It Matters to Operators
1. Application focus	Built for ammonia-rich liquid waste streams.	General-purpose adsorption across multiple contaminants.	Better suited to AD and wastewater challenges.
2. Ammonia performance	Over 99.9% removal in lab and trial conditions.	Performance varies by grade and operating conditions.	Clearer evidence for ammonia-specific treatment decisions.
3. Ammonium capture	Targets ammonium through cation exchange and adsorption.	Relies mainly on broad pore-based adsorption.	More targeted capture in complex liquid streams.
4. Regeneration	Regenerates in situ using sodium chloride brine.	Often replaced or regenerated off site.	Less media handling and simpler ongoing operation.
5. Nutrient recovery	Retains nitrogen, NPK and micronutrients for recovery.	Typically removes contaminants without recovering nutrients.	Turns treatment pressure into potential resource value.
6. System delivery	Scalable engineered system with multiple media-bed sizes.	Media requires separate vessels and system design.	Faster implementation with fewer integration decisions.
7. Circular outcomes	Supports cleaner outputs and circular nutrient recovery.	Focuses mainly on removal and media management.	Recover more value from every treated liquid stream.

Reduce ammonia pressure. Recover nutrient value. Strengthen your liquid-waste treatment pathway.

By combining high-performance ammonia polishing, in-situ media regeneration and nutrient recovery, ActiCH4R™.H₂O helps turn ammonia from a persistent treatment burden into a potentially recoverable resource.

Get in touch

Anaerobic Digestion

Wastewater Treatment

Liquid Digestate

Agricultural Runoff

ACTI CH4R™ .H₂O

Recovers Valuable Nutrients

Captures nitrogen, NPK and micronutrients, helping retain value that may otherwise be lost from the nutrient cycle.

Over 99.9% Ammonia Removal

Supports high-performance ammonia polishing in lab and trial conditions, helping operators reduce ammonia pressure in liquid waste streams.

Supports Circular Nutrient Management

Helps operators turn liquid waste streams into recoverable resource pathways across AD, wastewater and agriculture.

Supports Discharge and Treatment Requirements

Helps reduce ammonia load before discharge, reuse or further treatment, supporting operators facing tightening water quality expectations.

Reduces Reliance on Costly Treatment Routes

Provides a compact filtration approach that can support ammonia management without relying only on stripping, scrubbing or chemical-intensive systems.

Anaerobic Digestion

Polish high-ammonia liquid digestate and recover nutrient value after digestion.

Wastewater Treatment

Support ammonia reduction in municipal, agricultural and industrial wastewater streams.

Liquid Digestate

Reduce ammonia pressure in digestate handling while retaining recoverable nitrogen and nutrients.

Agricultural Runoff

Support nutrient capture from agricultural liquid streams before valuable nitrogen is lost.

Product section

ActiCH4R™.H₂O: Advanced Ammonia Polishing & Nutrient Recovery

Remove ammonia from liquid waste streams, reduce treatment pressure, and recover valuable nutrients for reuse.

Over 99% ammonia removal

Captures ammonia from liquid waste streams, helping operators reduce ammonia pressure before discharge, reuse or further treatment.

Nutrient recovery built in

Captures nitrogen, NPK and micronutrients within the media matrix, supporting recovery rather than nutrient loss.

Built for AD and wastewater operators

Suitable for anaerobic digestion, wastewater treatment, liquid digestate and agricultural runoff applications where ammonia, compliance and nutrient loss are persistent challenges.