Biogas and ethanol facilities generate large volumes of high-strength process water that are costly and difficult to manage. Fermentation, distillation, digestate handling, and anaerobic digestion all produce wastewater with high COD, dissolved solids, organics, and residual nutrients. Disposal and treatment of these streams are increasingly expensive, tightly regulated, and often limit plant expansion.

Aqua Fission provides a closed-loop solution that allows bioenergy plants to treat, recover, and reuse water while converting residuals into valuable byproducts.

Treating the toughest bioenergy wastewater
Aqua Fission is well suited for high-COD and high-solids water streams commonly produced in biogas and ethanol operations, including:

• Fermentation and distillation wastewater
• Digestate liquids from anaerobic digestion
• Stillage and thin stillage
• Process water with high organic loading, salts, and contaminants

Instead of diluting or discharging these streams, Aqua Fission processes them directly, recovering clean water and eliminating liquid waste.

Recovering water and increasing plant resilience
Aqua Fission can recover up to 99% clean water from bioenergy wastewater streams. The recovered water can be reused on site for process needs, cooling, or cleaning, or discharged in compliance with local standards where required.

This dramatically reduces freshwater intake, protects plants from water scarcity or permit restrictions, and enables expansion without increasing water withdrawals.

Turning waste into usable, carbon-positive solids
Rather than producing sludge or brine, Aqua Fission converts organic residues into a stable, humus-rich solid material. This material can be safely reused as:

• A soil conditioner
• A compost or fertilizer additive
• Land reclamation material
• A carbon-sequestering soil input

This transforms a disposal problem into a beneficial byproduct stream while supporting circular economy and carbon-management goals.

True Zero Liquid Discharge for bioenergy plants
Aqua Fission achieves true Zero Liquid Discharge. There is no toxic brine, no sludge hauling, and no wastewater outfall. Eliminating liquid discharge simplifies permitting, reduces long-term liability, and removes one of the biggest regulatory risks facing biogas and ethanol operators.

Lower operating cost and energy intensity
Unlike membrane-based systems, Aqua Fission requires no membranes, no chemical pretreatment, and operates at ultra-low energy levels. This reduces operating costs, avoids consumable replacement, and stabilizes long-term OPEX in facilities where margins are sensitive to energy and disposal costs.

ESG and sustainability alignment
By reducing freshwater use, eliminating liquid waste, and converting residues into beneficial soil products, Aqua Fission helps bioenergy plants strengthen ESG performance and sustainability reporting. Facilities can demonstrate responsible water stewardship, reduced environmental impact, and improved community alignment.

A scalable, circular water solution for bioenergy
Aqua Fission’s modular design allows phased deployment and easy integration with existing biogas and ethanol infrastructure. Systems can scale with plant capacity, feedstock changes, or regulatory requirements without major civil works.

The result is a circular, resilient water solution that supports long-term bioenergy operations while reducing cost, risk, and environmental footprint.