摘要
该文对黄浦江上游引水管渠中的NH3N及CODMn衰减速率进行了研究,所得NH3-N衰减系数KNH3较一般河流大得多,而CODMn的衰减系数KCODMn则与一般河流接近。文中对管渠中的耗氧及复氧进行了计算,提出在大桥水中NH3N不大于2mg/L时依靠管渠中的自净能力,到达各厂的原水NH3-N可不大于或等于1mg/L,但大于2mg/L甚至3mg/L时,需在大桥有预处理措施,CODMn在管渠中的衰减量不大,要在水厂中着力解决。
Research on degradation of NH_3-N and COD_ Mn i n Channel Water diverted from upstream of Huangpu River were conducted.The coeff icients of degradation of NH_3-N,K_ NH_3 obtained are much higher than th ose obtained from rivers,whereas those of COD_ Mn obtained are approximately the same as rivers′.In this paper,consumption and regeneration of oxygen in ch annel water were calculated,the results obtained were:depending upon the self-p unification,NH_3-N concentration in the influent water of each water plant cou led be less than 1mg/L,during NH_3-N concentration of the outlet water of Daqi ao raw water station less than 2mg/L,nevertheless pretreatment facilities must b e carried out during NH_3-N in the Daqiao water higher than 2 or 3mg/L;only a little amount of COD_ Mn removed in the channel water,this problem must be s olved in each water plant.
出处
《净水技术》
CAS
2005年第2期1-5,共5页
Water Purification Technology
基金
国科发(863)2002AA601130
