Removal of nitrate from groundwater by heterotrophic denitrification using the solid carbon source
作者： XuMing Wang , JianLong Wang
DOI: 10.1007/S11426-008-0111-7
关键词:
摘要: Removal of nitrate from groundwater was investigated using biodegradable meal box (BMB) and poly(ɛ-caprolactone) (PCL) as carbon source biofilm carrier. The experimental results show that in can be effectively removed BMB PCL source. Denitrification rates supported by were 52.80 42.77 mg (NO3-N)/(m2·h), respectively, at 30°C pH 7.5. value effluent ranged 7 to 8, NO2-N concentration less than 0.1 mg/L. Compared with BMB, could decrease nitrite accumulation; however, more significant influence temperature on denitrification observed for Temperature constants 0.045 0.068, 10–30°C. Based efficiency cost, is suitable a PCL.
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