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Research Of Emergency Water Treatment Technology For Water Supply Facilities Damaged

Posted on:2016-08-20Degree:MasterType:Thesis
Country:ChinaCandidate:S TangFull Text:PDF
GTID:2272330482951061Subject:Environmental Engineering
Abstract/Summary:PDF Full Text Request
The water pollution, water shortage, weak security and poor emergency response capabilities etc came into existence. And, in an emergency situation, drinking unclean water can lead to dehydration and disease which caused more terrible consequence than disasters and incidents caused. This article will be studied in water treatment equipment or water supply network is missing and no power. Test the surface water, which based on the conventional water treatment processes, coagulation sedimentation filtration sterilization, inquired to effect of the emergency treatment process which is with enhanced coagulation, membrane separation (UF-RO). Enhanced coagulation-membrane separation is a combinative technology of membrane treatment coagulation, both coagulation to remove organic matter, improve the membrane fouling, and the membrane is the role of removing the pollutions, to ensure the safety and stability of water quality. The content of this paper include the preparation of mixed mud agent the, the design of coagulation and sedimentation reactor, the design of mechanism which is used in providing, dynamic for film, the restructuring of membrane, and detected the water which passed.Preparation of a coagulant, which PAC and CPAM (1000 million) dosing ratio of 20:1, optimize the coagulation effect. After the filler has played the role of contact flocculation, filler interface to the destabilization of particles in water; designed to replace the traditional scroll Coagulating contact flocculation sedimentation tank sedimentation tank, the water embedded in the opening ceremony will formed vortex after the cell body and the filler of hydraulic conditions change; the filler is the important role of contact flocculation, and there are good to a tank of gathering, growing, forming better than normal flocculation reactor. Restructuring of the reverse osmosis membrane, the membrane module after the reform increased the water at pH and conductivity values, and reduce the amount of water ions amount at SO42-、Na+、K+、Ca2+, improved water quality; increase the wastewater effluent at the total SO42-、Na+、K+、Ca2+ plasma amount, reducing membrane fouling, for the study of membrane pollution control plays an important role.coagulation sedimentation filtration sterilization, inquired to effect of the emergency treatment process which is with enhanced coagulation, membrane separation (UF-RO). Enhanced coagulation membrane separation is a combinative technology of membrane treatment coagulation to applied emergency treatment in case of integrated process water supply facilities missing, improve the effect of the original process of medium sand filter processing, increase the applicability of the processing system, and provide safety guard for residents to safety water.
Keywords/Search Tags:Emergency treatment, Enhanced coagulation, Ultrafiltration, Membrane
PDF Full Text Request
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