摘要
在活性污泥反应器中引入红斑体虫以考察其生长条件和对剩余污泥的减量效果及对系统处理效果的影响。结果表明,SRT为15～34d时对红斑体虫的长期生长没有影响;进水COD负荷<0.6mg/(mgVSS·d)时红斑体虫可大量出现。不同SRT和进水负荷条件下的污泥产率系数与反应器中的红斑体虫密度成负相关,对剩余污泥的减量比例为39%～58%。红斑体虫的存在有利于改善污泥的沉降性能,且对COD、氨氮、TP的去除效果影响不大。
Aeolosoma hempfichiciiwas added into activated sludge reactor, so as to investigate its growth condition and influence on the reduction of excess sludge and treatment effect of the system. The result showed that15 ~34 d of SRThas no effect on long period growth of Aeolosoma hempfichicii; when influent CODloading rate is <0.6 mg/(mgVSS·d), Aeolosoma hempfichiciiappears in a large quantity. At different SRTand influent loading, sludge yield coefficient is in negative correlation with the density of Aeolosoma hempfichicii, and excess sludge is reduced in the proportion of 39%~58%. Existence of Aeolosoma hempfichiciiis beneficial to improving sludge settleability and has less influence on the removal of COD, NH 3-N, and TP.
出处
《中国给水排水》
CAS
CSCD
北大核心
2004年第1期13-17,共5页
China Water & Wastewater
