Burnley Sewage‐Treatment Works: Design and Operation of a High‐Rate Nitrifying Filter
1992
Hill, B. | TODDINGTON, R. | CHALLENGER, P.
The paper deals with the planning, construction, operation and performance of the purpose‐built nitrifying filter from its commissioning in August 1986 to the present day. Burnley sewage‐treatment works consists of inlet screens, Dorr detritors, primary sedimentation tanks, surface‐aeration activated sludge units, and final settlement; sludge is digested and tankered to farmland. The filter was designed and built following the closure of several local works and subsequent diversion of flows to Burnley. It was realized that the increased volume from the extended Burnley works would reduce the dilution of the effluent by the River Calder. This would result in a deterioration in the quality of the river. As a consequence an ammonia standard of 14 mg/l was imposed on the works following the completion of the nitrifying filter.
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