Equipment and method for enhanced coagulation and clarification treatment in emergent water supply treatment

Abstract

The invention discloses equipment for enhanced coagulation and clarification treatment in emergent water supply treatment. The equipment comprises a coupling inductive type electric flocculation treatment unit, a micro nano bubble generation unit and a polymerization floating separation filtering unit, wherein an air inlet pipeline is communicated with a water inlet pipeline at one point; one end of an air dissolving pump is connected with the water inlet pipeline; the other end of the air dissolving pump is connected with a water outlet pipeline; one end of the water outlet pipeline is a micro nano bubble release head; a pipeline which is introduced into an inner cylinder is connected with the upper end of a coupling inductive type coagulation reactor; the micro nano release head is positioned inside the inner cylinder; the inner cylinder is positioned inside a polymerization floating separation area; the coupling inductive type coagulation reactor is further connected with a power supply control cabinet. The invention further discloses a method for enhanced coagulation and clarification treatment in emergent water supply treatment. The equipment has the advantages of being free of coagulant, good in coagulation and clarification effect, simple in process, low in cost and good in applicability.

Description

technical field [0001] The invention belongs to the technical field of emergency water supply treatment, and in particular relates to a device and method for strengthening coagulation and clarification treatment in emergency water supply treatment. Background technique [0002] In recent years, natural disasters such as sudden water pollution incidents and earthquakes and debris flows have occurred frequently. Songhua River nitrobenzene pollution incident, Guangdong Beijiang cadmium pollution incident, Gansu Longxing antimony pollution incident, Sichuan Wenchuan earthquake, Qinghai Yushu earthquake and Zhouqu debris flow The occurrence of urban water supply threatens the safety of urban water supply, seriously affects the normal production and living order, and has caused serious social impact. In order to ensure the safety of urban water supply, in response to sudden pollution incidents and natural disasters, it is necessary to develop emergency treatment technologies, proce...

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Problems solved by technology

Once disposed of improperly, it will also bring new environmental pollution

[0004] At present, in emergency water supply treatment, there are mainly three treatment methods, which are: (1) The filter-based system is composed of structural units such as bag filters, fine filters, transfer water tanks, high-pressure pumps, dosing devices, and nanofiltration membranes. The core emergency water supply treatment vehicle, but its operation effect is greatly affected by the raw water quality conditions. When encountering raw water with high turbidity and high sand content, the filter used in the pre-treatment is prone to clogging, resulting in the water supply of the subsequent treatment unit The water production efficiency of the whole device is low; (2) The mobile emergency treatment pilot water plant composed of coagulation sedimentation system, chemical preparation and dosing system, pressure sand filter system, ozone activated carbon system, etc. When encountering water source conditions with high turbidity, high algae, and high organic pollution, it is necessary to add a large amount of chemical agents to ensure that the raw water can meet the water requirements of subsequent sand filters and ozone activated carbon filters after pretreatment; (3) use diving Pumps and cyclone desanders are used as pretreatment equipment for subsequent sand filtration, carbon filtration, and reverse osmosis treatment units. Raw water treated with this equipment can remove large particles of suspended solids, but when encountering water with a high content of dissolved organic matter When raw water is used, the filtration rate of the filter will decrease and the operating cycle of the carbon filter will be shortened.

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