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- W2393775209 abstract "LAS concentration is high in synthetic detergent producing wastewater,and it is difficult to be de- graded biologically,since LAS causes a lot of foams.Submerged attached-growth bioreactor(SAGB)has some advantages such as simple process,high biological treatment efficiency,long solids retention time,and tolerance to high loading,etc.SAGB process with hydrolysis-acidogensis and aeration is used to treat LAS-rich(100 mg/L)wastewater.The hydraulic retention time of hydrolysis-acidogensis SAGB and aerobic SAGB are 4.0 and 6.0 hrs,respectively.In the hydrolysis and acidogensis using heterotrophic microorganisms with longer sludge retention time,LAS and other higher-molecular-weight organic matters are converted into lower-molecu- lar-weight compounds,which are readily degraded in the subsequent aerobic stage due to the increase in BOD/COD from 0.25 to 0.45.After physic-chemical and biological treatment,the concentrations of COD_(Cr) 301～453mg/L,LAS 129～164mg/L,PO_4~(3-)(P)2.3～4.2mg/L,are reduced to COD_(Cr)50～81mg/L,LAS 2～4mg/L,PO_4~(3-)(P)0.1～0.3mg/L,respectively,in the effluent,which meets the national effluent dis- charge standards." @default.
- W2393775209 created "2016-06-24" @default.
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- W2393775209 date "2003-01-01" @default.
- W2393775209 modified "2023-09-25" @default.
- W2393775209 title "Treatment of synthetic detergent wastewater with submerged attached-growth bioreactors(SAGB)" @default.
- W2393775209 hasPublicationYear "2003" @default.
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