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Operating Experiences of Sludge Disinfection and Stabilization at Colburn Sewage Treatment Works, Yorkshire
Author(s) -
HUDSON J. A.,
BRUCE A. M.,
OLIVER B. T.,
AUTY D.
Publication year - 1988
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1988.tb01316.x
Subject(s) - waste management , sludge bulking , anaerobic digestion , environmental science , sewage sludge , combustion , sewage treatment , sewage sludge treatment , volume (thermodynamics) , environmental engineering , engineering , methane , chemistry , physics , organic chemistry , quantum mechanics
A NEW integrated sludge treatment plant was installed at Colburn sewage treatment works (STW) in 1986. The plant comprises a number of novel features including a continuous gravity thickener features including a continuous gravity thickener, a pasteurization unit using submerged combustion of digester gas for sludge heating, a peat‐bed odour control system, and a ‘pump‐our/pump‐in’prefabricated anaerobic digester. Plant operation is controlled automatically by a computer system The performance of the thickener has been in accordance with predictions and has achieved at least a halving of raw sludge volume. The submerged combustion plant has consistently heated the sludge to 70°C with high efficiency of gas utilization before the anaerobic digestion stage. Some problems were experienced with the continuity of supply of the raw sludge but overall the plant has performed very satisfactorily with the production of a high quality disinfected and stabilized sludge for use by local farmers.