Based on the tests between anoxic and aerobic process, the two stage aerobic process with a biological selector was chosen to treat terephthalic acid wastewater (PTA). By adopting the two stage aerobic process, the ...Based on the tests between anoxic and aerobic process, the two stage aerobic process with a biological selector was chosen to treat terephthalic acid wastewater (PTA). By adopting the two stage aerobic process, the COD Cr in PTA wastewater could be reduced from 4000—6000 mg/L to below 100 mg/L; the COD loading in the first aerobic tank could reach 7 0 to 8 0 kgCOD Cr /(m 3·d) and that of the second stage was from 0 2 to 0 4 kgCOD Cr /(m 3·d). Further researches on the kinetics of substrate degradation were carried out.展开更多
文摘Based on the tests between anoxic and aerobic process, the two stage aerobic process with a biological selector was chosen to treat terephthalic acid wastewater (PTA). By adopting the two stage aerobic process, the COD Cr in PTA wastewater could be reduced from 4000—6000 mg/L to below 100 mg/L; the COD loading in the first aerobic tank could reach 7 0 to 8 0 kgCOD Cr /(m 3·d) and that of the second stage was from 0 2 to 0 4 kgCOD Cr /(m 3·d). Further researches on the kinetics of substrate degradation were carried out.
