Thermal Hydrolysis for Biosolids & Biowaste

Cambi AS is a privately owned company based in Norway and has offices in Denmark, the UK, Poland, Germany, China, Korea and US.

Cambi AS is a privately owned company based in Norway and has offices in Denmark, the UK, Poland, Germany, China, Korea and US. This is in addition to an international network of agents and representatives.The company has also been involved in the development of environmental technology since 1989.

Cambi AS has developed and installed worldwide its unique "steam explosion" thermal hydrolysis process (THP), a technology for the treatment of wastewater treatment plant (WWTP) sludge prior to anaerobic digestion.

At this year's Aquatech Amsterdam Cambi will be presenting its THP process for medium sized WWTP's starting at 1,000 tonnes per day dry solids (t DS) and increasing up to 7,000 tonnes. The new Cambi B2 will enable your plant to supply up to 50% more biogas, half the disposal cost and double the capacity. It is a "Plug & Play" concept for smooth integration into the existing plant.

All Cambi models - B2, B6 and B12 THP - will provide even higher volatile solids (VS) reduction rates, which leads to more biogas and better dewatering by the introduction of the last MARK II technology, for enhanced high pressure disintegration (steam explosion) and higher capacity (+30%).

The use of the thermal hydrolysis process in sludge treatment for WWTPs can help medium-sized plants to be converted, with the import of sludge from other nearby plants, into strategic sludge treatment centers.

Case studies: UK, Norway and the US

At utility Thames Water's Chertsey WWTP (London, UK) our process operators have tuned the plant to the exceptional capacities of up to 7 kg VS m3/day and retention times as low as 10-12 days.

Drammen (Norway) has recently installed a medium-scale sludge treatment center for dewatered sludge from nine municipalities (18,500 wet t/year), fats from the food industry (3,000 t/year), sludge from septic tanks (7,000 t/year) and other biological substrates (2,000 t/year).

The District of Columbia Water and Sewer Authority (DC Water) in its Blue Plains plant treats a sewage flow of 370 MGD (15 m3/s), the largest wastewater treatment plant with advanced treatment in the US.

From 1996 to the present, Cambi thermal hydrolysis units installed and under design/construction worldwide have a capacity of 768,000 t DS/year. www.cambi.no

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