Short-range denitrification/dephosphorization device and method based on sludge side pretreatment
A denitrification dephosphorization and short-range denitrification technology, applied in the field of low C/N ratio urban sewage treatment and excess sludge biochemical treatment reduction, can solve the problems of high treatment and disposal costs, secondary pollution, etc., and achieve stable operation, Effect of improving biodegradability
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[0024] The present invention will be further described in detail below with reference to the drawings and embodiments: figure 1 As shown, a short-cut denitrification and phosphorus removal device based on side pretreatment of sludge: equipped with a raw water tank for urban sewage (1), a denitrification and phosphorus removal reactor (2), an intermediate water tank (3), and a short-cut nitrification reaction Sludge pretreatment reactor (4), No. 1 sludge pretreatment reactor (5), No. 2 sludge pretreatment reactor (6); it is characterized in that the raw municipal sewage water tank (1) is combined with denitrification through the inlet pump I (2.1) The phosphorus removal reactor (2) is connected; the sludge from the denitrification phosphorus removal reactor (2) enters the second sludge pretreatment reactor (6) through the sludge return pump III (6.1); the second sludge pretreatment The reactor (6) is connected to the denitrification and dephosphorization reactor (2) through the ...
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