Method and device for synchronous phosphorus removal and turbidity removal of thickened sludge water

A technology for thickening sludge and sludge water, applied in water/sludge/sewage treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve the impact of biological treatment process and affect the concentration of TP in treated water, etc. , to achieve the effect of simple operation and low processing cost

Active Publication Date: 2014-05-28
SHAANXI URSTAR ENVIRONMENTAL SCI & TECH
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Problems solved by technology

Therefore, its direct discharge into the sewage treatment system will bring a great impact on the biological treatment process (the design influent TP concentration of urban sewage treatment plants is generally less than 10mg / l), which in turn affects the concentration of TP in the treated water

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  • Method and device for synchronous phosphorus removal and turbidity removal of thickened sludge water
  • Method and device for synchronous phosphorus removal and turbidity removal of thickened sludge water

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[0026] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0027] Such as figure 1 with figure 2 As shown, a device for synchronous dephosphorization and turbidity removal of concentrated sludge water in the present invention comprises a high-speed stirring zone I (two grids in total), a flocculation reaction zone II, a coagulation reaction zone III, a granulation compact zone IV, Solid-liquid separation zone V and residual phosphorus adsorption zone VI. The high-speed stirring zone I is connected to the inlet pipe 1 of the concentrated sludge water, and a high-speed mixer 2 is installed in it. The top edge of the high-speed stirring zone I is higher than the flocculation reaction zone II so that the sludge water can flow into the flocculation reaction zone II from the top, and the flocculation reaction zone A fast flocculation mixer 3 is installed in II and is connected to a flocculant dosing device...

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Abstract

A method for synchronous phosphorus removal and turbidity removal of thickened sludge water comprises the following steps: stirring at high speed to perform homogenization treatment on sludge flocs in the thickened sludge water; adding a flocculating agent into the thickened sludge water subjected to homogenization treatment to realize quick flocculation; performing coagulation reaction on the thickened sludge water subjected to flocculation reaction to realize further densification of particle sludge produced in the coagulation reaction; performing solid-liquid separation on muddy water mixture subjected to densification, discharging the particle sludge through a spiral conveyor, collecting treated water through a collecting tank and further removing residual phosphorus in the water through adsorption to finally enable the outlet water to meet the discharge standards. The invention further provides a device for synchronous phosphorus removal and turbidity removal of the thickened sludge water. By the method and the device provided by the invention, the synchronous phosphorus removal and turbidity removal effect on the thickened sludge water in a sewage treatment plant is realized, the treatment cost is low, the treatment efficiency is high and the consumed time is short.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a method and device for synchronous dephosphorization and turbidity removal of concentrated sludge water. Background technique [0002] At present, urban sewage generally adopts biological treatment processes that can remove nitrogen and phosphorus, including: AAO, oxidation ditch, Cass and other processes. The above-mentioned several biological treatment processes have achieved great results in reducing the discharge of pollutants in urban sewage to the water environment, and effectively curbed the water pollution caused by the discharge of urban sewage into the water environment. However, the phosphorus removal effect in all biological treatment processes is achieved through the phagocytosis of phosphorus accumulating bacteria and the discharge of proliferated sludge (excess sludge). At present, there are two commonly used excess sludge treatment methods: 1) sludge co...

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Application Information

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IPC IPC(8): C02F9/04
Inventor 金鹏康王先宝任武昂金鑫
Owner SHAANXI URSTAR ENVIRONMENTAL SCI & TECH
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