Enhanced Coagulation To Micro-polluted Source Water Treatment

Enhanced coagulation can raise the water fluid matter validly.Normal coagulation aim to get rid of muddy degree,but enhanced coagulation can do away with not only but also organic matter,controlling coagulation condition to increase the rate of organic matter. Doing away with the organic matter of the deliquescence is to adsorb metals sediments.Enhanced coagulation is to dose surfeit coagulant,new coagulant or other doses in normal crafts,and to control pH to strengthen coagulation which can increase the rate of organic matter, biggest limit do away with disinfect the vice-outcome ex-body thing, assurance drinking water disinfect the vice-outcome match the drinking water of the method of the standard. Enhanced coagulation is a treatment craft to do way with organic matter which develops on normal coagulation treatment. Enhanced coagulation is to extent and improve further organic matter's rate and scope by improving coagulation conditions.To other crafts,the cost is low and it can be implied on original equipments. The study imitated water purification plants to carry on enhanced coagulation treatments on micro-polluted raw water(from Lake East),analyszing water quality parameters and full-scale experiment study including PAS ,Al2(SO4)3,PAFS and PAC in order to select the fittest coagulation to micropolluted raw water. Enhanced coagulation's effect factors are: flocculant's category,the dose,pH value,the result of mixing,raw water fluid matter,sequence of coagulation and so on. The result of enhanced coagulation shows that the best condition is:PAC's dose is 20mg/l,mixing speed 260r/min,mixing time 30s,flocculating speed 50r/min, flocculating time30min,sedimentation time 25min,controlling pH 6.5-7.0 Organic matter's rate is 68â„…,NTU's is 87â„…. Enhanced coagulation is the key to enhance the output water. On the based of routine treatment aechnique,enhanced coagulation is efficient way to treat the micro-polluted raw water. .