微波辐照与碱联合应用实现剩余污泥减量的实验研究  

Reduction of sludge by microwave irradiation and alkali treatment

作　　者：孙德栋[1] 刘佳[1] 马春[1] 王一娜[1] 宋晶[1] 

机构地区：[1]大连工业大学化工与材料学院,辽宁大连116034

出　　处：《大连工业大学学报》2009年第3期195-199,共5页Journal of Dalian Polytechnic University

基　　金：辽宁省教育厅科技研究资助项目(2008078)

摘　　要：采用序批式活性污泥法（SBR）,对微波辐照与碱联合实现污泥减量进行了研究。结果表明,在微波辐照功率800 W,辐照时间120 s,每克SS投加NaOH 0.16 g,每天处理的污泥分别为反应器内污泥的5%、10%、15%时,污泥表观产率系数分别减少18%、26%、38%。虽然随着污泥处理比例的增大,处理系统出水SCOD略有增加,但处理系统仍能保持其生物处理能力,SCOD去除率在82.4%-84.2%,对系统的生物处理能力影响不大。两系统对NH4＋-N去除率均在94.6%-95.9%,微波辐照与碱联合处理系统的硝化能力没有受到太大影响。污泥分解后,磷释放到溶液中,返回至生物系统,使出水的TP浓度有所增加。The investigation of sludge reduction by microwave irradiation-alkaline treatment was carried out in sequencing batch reactor. The apparent yield coefficient of microwave irradiation-alkaline treatment was decreased by 18%, 16% and 38% respectively when daily treatment is 5%, 10% and 15% of the reactor sludge with the irradiation time of 120 s, irradiation power of 800 W, and the dosage of NaOH 0.16 g of 1 g SS. Although the increasing treated sludge increased slightly the SCOD effluent the removal rate of SCOD reached to 82.4%-84.2%. The removal rates of NH4^＋-N in the two reactors were 94.6%-95.9%.

关 键 词：污泥 微波辐照 碱处理 序批式活性污泥法(SBR) 

分 类 号：X703.1[环境科学与工程—环境工程]