Bennett Environmental (AMBREVO) has developed an innovative above-ground anaerobic digestion technology specifically designed to process dilute wastewater, particularly from dairy operations. This patent-pending system effectively digests wastewater with a chemical oxygen demand (COD) ranging from 5,000 to over 10,000 mg/l, addressing regulatory challenges while maximizing methane capture. The technology is particularly advantageous for dairies, as it allows for consistent year-round gas production and offers potential revenue streams from byproducts such as compost and land-applied nutrients. The system's design requires less permitting compared to traditional methods, resulting in reduced construction timelines and a smaller footprint, making it suitable for operations with high wastewater volumes.

The AMBREVO system boasts several performance advantages over conventional covered lagoon and continuously stirred tank reactor (CSTR) technologies. It produces an average of 18 MMBTU of biogas per milk cow annually, which is approximately 50% more than covered lagoons. The heated tanks and optimized heat exchange technology ensure reliable gas production even in colder climates, while the system's unique mixing and solids management capabilities enhance its efficiency. With a hydraulic retention time of just over two days and a solids retention time of 17-20 days, the AMBREVO system effectively handles continuous flow and maximizes the digestion of biodegradable materials. Overall, this technology not only improves operational efficiency but also contributes to the economic sustainability of dairy farms.

United States

The company helps customers' businesses become more sustainable and compliant while lowering their cost and/or optimizing their supplies of both water and energy.

Bennett Environmental(AMBREVO)

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