CAJ | 학술논문

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0.22 cm/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.
위료탐색급수엄오니용작지하삼려계통적가행성,이보통토위대조,대급수엄오니화작위첨가물적로사이급량자혼합물적적립경、삼투계수、담린흡부능력진행연구.결과표명,재시험조건하,급수엄오니삼투계수위0.22 cm/h,만족지하삼려계통대기질삼투성능적요구,급수엄오니적립경대우보통토,단시삼투성능각저우보통토,첨가로사가이제고기삼투능력,병차로사첨가량월대,삼투성능월호.린흡부화안담흡부시험적결과표명,급수엄오니적린화안담흡부성능분별시보통대조토양적65화3배,첨가로사회강저기대린화안담적흡부능력,첨가량월대,린화안담적흡부능력월약,소유수시양품대린화안담적흡부부합Langmuir등온흡부방정.단독채용급수엄오니혹자첨가괄량로사적급수엄오니능구작위지하삼려계통적기질.
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.