Implementation of Biological Processes for the Forest Industry & Environmental Quality, 1993 Environmental Conference Proceedings

As a result of increasing industrial activity and stricter application of environmental standards, pressure is being brought on industries to improve the quality of their effluents. To achieve these goals, cost efficient and high performance waste water treatment processes are needed.

Recently, tests were completed on the treatment of groundwood, TMP and deinking process effluents at the Daishowa Quebec, Pulp and Paper Mill. The Biological treatment used was a fixed film process known as the "BIOCARBONE" process which accepted COD loads of up to 10 kg/m3 day. This represents a major savings of space when compared to conventional waste activated sludge processes with COD loads of 2-3 kg/m3 day.

The object of the test was to verify BOD5 levels, TSS removal and toxicity levels with respect to existing environmental standards.

At all times and for all conditions tested, the "BIOCARBONE" process met the accepted standards of 5 kg/T of BOD5, 8 kg/T of TSS and total removal of toxicity on a monthly basis.