Study On Sludge Filter Dewatering Property In Municipal Swage Treatment Plant

One of the indispensable work in Municipal Swage Treatment Plant(MSTP) is Sludge treatment and disposal, whose purpose is reducing volume, stabilifying, no-poisonus and comprehensive survey, guaranteeing the property operation and the treatment effect of MSTP, presenting a second pollution. Based on the analysis of sludge treatment disposal, the study is mainly about to improve the dewatering characteristics of actived sludge adopting the chemical condition methodology, associating the disposal technology in wulongkou Sewage Treatment Plant.Firstly, the study selects the activated sludge to make coagulant experiment with 4 different coagulants, regards the specific resistance as a target, take the coagulants which can improve the dewatering characteristics of activated dramatically as the optimum coagulant. Based on the specific resistance, the study fund main factors that influence the sludge dewatering and get the optimum factor combination. Resultes shows that PAM is the best medicament, dosage of 2.45kg per dry sludge(t).Secondly, based on the static press test, study on Sludge Dewatering Property and main factors that influence the sludge dewatering, further more, perss of static press test and time of static press test are carried out in laboratory reserrch. Resultes shows that perss of static press test is 0.6MPa and time of static press test is 30 minuter; the optimum dosage is 2.5kg per dry sludge(t).Finally, a productive Sludge Dewatering test of Volute is carried out in Municipal Swage Treatment Plant, the study is mainly about to dewatering property of actived sludge. At the same time, the research can also provide reference of sludge dewatering to middle and mall sewage treatment plant.