Title: Example of an upgrading project of sewage treatment plants in North China
Abstract: There is an upgrading project of sewage treatment plants with processing scale of 5×105 t/d in North China.The original design is to use A/O denitrification process,abiding by the secondary emission standard of the implementation of the urban sewage treatment plant pollutant discharge standard(GB 18918-2002).Due to feed water quality deterioration and the improvement of sewage discharge standard the in recent years,the original sewage treatment system needs to be improved.Through technical comparison,anaerobic pool is adopted in the original biological treatment process,resulting in A2/O denitrification and dephosphorization,and the added depth treatment technology is of denitrifying biological filter-sand tank-filter cloth filter-ultraviolet disinfection in order.The effluent quality reaches discharge standard A.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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Cited By Count: 1
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