High Solids Digestion Plant

EBL was commissioned to provide process design and commissioning for an industrial anaerobic treatment plant for a manufacturer of soft drink concentrate and herbal essences. The client, based in Vienna, Austria, awarded a local engineering contractor, Purator GmbH the contract to install the plant used to treat their high solids industrial waste.

This designwas chosen because of its ability to handle a particularly difficult waste stream with wide variations in organic load and flow rate. The process included anaerobic treatment incorporating a 300m3 digester, followed by an aerobic polishing stage. The exhaust stream from the aerobic reactor was fitted with a deodorising biofilter to ensure odour free operation.

Excess biogas was vented through Purator's own stainless steel flarestack system. The waste treatment plant was designed to produce a soluble effluent COD of no greater than 4,000 mg/l, a reduction of greater than 96% from the 96,000 mg/l COD factory waste stream.

New High Solids Digestion Plant