给水厂污泥用做地下渗滤系统基质可行性的初步研究  

Preliminary Study on the Feasibility of Using Waterworks Sludge as the Substrate in Subsurface Infiltration System

作　　者：王小玲 贺电 邹仲勋[3] 

机构地区：[1]河南省郑州市污水净化有限公司,河南郑州450044 [2]河南省郑州市市政工程总公司,河南郑州450007 [3]华北水利水电学院环境与市政工程系,河南郑州450011

出　　处：《安徽农业科学》2010年第4期1984-1986,共3页Journal of Anhui Agricultural Sciences

摘　　要：为了探索给水厂污泥用作地下渗滤系统的可行性,以普通土为对照,对给水厂污泥和作为添加物的炉渣以及两者混合物的的粒径、渗透系数、氮磷吸附能力进行研究。结果表明,在试验条件下,给水厂污泥渗透系数为0.22cm/h,满足地下渗滤系统对基质渗透性能的要求,给水厂污泥的粒径大于普通土,但是渗透性能却低于普通土,添加炉渣可以提高其渗透能力,并且炉渣添加量越大,渗透性能越好。磷吸附和氨氮吸附试验的结果表明,给水厂污泥的磷和氨氮吸附性能分别是普通对照土样的65和3倍,添加炉渣会降低其对磷和氨氮的吸附能力,添加量越大,磷和氨氮的吸附能力越弱,所有受试样品对磷和氨氮的吸附符合Langmuir等温吸附方程。单独采用给水厂污泥或者添加适量炉渣的给水厂污泥能够作为地下渗滤系统的基质。To find out the feasibility of using waterworks sludge as the substrate in subsurface infiltration system,the particle size,permeability coefficient,ammonia and phosphorus adsorption capacity of the waterworks sludge and the slag used as addictive,the mixture of the two samples were studied with the ordinary soil used as control.The results indicated that the permeability coefficient of the waterworks sludge was 0.22 cm/h and its permeability could meet the demand of subsurface infiltration system.The waterworks sludge had a larger particle size but a lower permeability than the ordinary soil.Its permeability could be improved by mixing with slag,while its phosphorus and ammonia adsorption capacity further decreased by adding more slag.The phosphorus and ammonia adsorption capacity of the waterworks sludge was 64 and 2 times larger than that of ordinary soil,respectively.The adsorption curves fitted the Langmuir equations well.The pure waterworks sludge or waterworks sludge mixed with slag could be used as Substrate in subsurface infiltration system.

关 键 词：地下渗滤系统 给水厂污泥 普通土 炉渣 渗透性 磷吸附 氨氮吸附 

分 类 号：X703.1[环境科学与工程—环境工程]