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Short-flow micro-polluted raw water treatment combined system integrated with adsorption, biological oxidation and membrane separation technologies

A bio-oxidation and membrane separation technology, applied in the fields of adsorption water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of inability to remove dissolved organic matter and ammonia nitrogen, and achieve excellent effluent The effect of water quality, easy automatic control and management, and compact equipment layout

Inactive Publication Date: 2012-06-27
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the commonly used ultrafiltration membrane filtration system, because its molecular weight cut-off is limited to the micron level, it can have a good removal effect on suspended particles in water, but it cannot remove dissolved organic matter and ammonia nitrogen in slightly polluted water sources

Method used

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  • Short-flow micro-polluted raw water treatment combined system integrated with adsorption, biological oxidation and membrane separation technologies
  • Short-flow micro-polluted raw water treatment combined system integrated with adsorption, biological oxidation and membrane separation technologies

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, the system includes a raw water tank 1, a biological contact oxidation zone 4, a transition zone 5 and a membrane reaction zone 9. The raw water tank 1 is connected to the water inlet on the top side of the biological contact oxidation zone 4 through a water-absorbing diaphragm pump 2 and a pipeline, and the air pump 3 passes through The pneumatic disc valve 11 and the pipeline are connected to the air inlet on the top side of the biological contact oxidation zone 4, and the air inlet is connected to the air intake pipe, and the air intake pipe is inserted into the bottom of the biological contact oxidation zone 4; There are PAC particles 6, the biological contact oxidation zone 4 and the transition zone 5 are connected by an overflow plate, the bottom of the transition zone 5 is provided with a mud discharge sloping plate 8, the side of the transition zone 5 is provided with a membrane pool 9, and the membrane pool 9 is provided with a hollow ...

Embodiment 2

[0025] Taking the operation of Shangyuanzha Water Plant in a certain city as an example to illustrate the effect of the combined system on treating slightly polluted raw water: raw water turbidity 126 NTU, ammonia nitrogen 1.14 mg / L, COD Mn 5.57 mg / L, after the combination system: after adding coagulant and mixing, folding plate flocculation, short-process precipitation, powder activated carbon contact oxidation, and membrane separation process, the effluent turbidity is 0.03 NTU, ammonia nitrogen 0.21 mg / L, COD Mn 1.55 mg / L, the characteristic pollutant indicators and conventional water quality indicators all meet the "Drinking Water Hygienic Standard" (GB5749-2006), the effluent water quality is better than the original conventional water treatment process, especially the process system has greatly improved the organic pollutants and ammonia nitrogen processing effect.

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Abstract

The invention relates to a short-flow micro-polluted raw water treatment combined system integrated with adsorption, biological oxidation and membrane separation technologies. The system comprises a raw water tank, a biological contact oxidization area, a transition area and a membrane reaction area, wherein the raw water tank is connected with a water inlet on one side at the top of the biological contact oxidization area through a water sucking membrane pump and a pipeline; an air pump is connected with an air inlet port on one side at the top of the biological contact oxidization area through a pneumatic butterfly valve and a pipeline; the air inlet port is connected with an air inlet tube; the air inlet tube is inserted into the bottom of the biological contact oxidization area; PAC (Polymeric Aluminum Chloride) grains are arranged in both of the biological contact oxidization area and the transition area; the biological contact oxidization area and the transition area are connected through an overflow plate; a sludge-discharging inclined plate is arranged at the bottom of the transition area; a membrane pool is arranged on one side of the transition area; a hollow fiber membrane is arranged in the membrane pool; the air pump is connected with the air inlet port on one side at the top of the membrane pool through the pneumatic butterfly valve and the pipeline; the air inlet port is connected with the air inlet tube; and the air inlet tube is inserted into the bottom of the membrane pool.

Description

technical field [0001] The invention relates to a short-flow micro-polluted raw water treatment combined system integrating adsorption-biological oxidation-membrane separation technology. Background technique [0002] At present, my country's drinking water sources generally face the problem of excessive dissolved organic pollutants and ammonia nitrogen in water source water. Most urban waterworks still use the coagulation-sedimentation-filtration-disinfection process. The treatment effect of ammonia nitrogen is very poor, so that the quality of effluent water cannot meet the "Drinking Water Hygienic Standard" (GB5749-2006). How to upgrade the original process technology on the basis of the existing process equipment, so that the water quality of the water plant can meet the sanitary standards of drinking water is a problem faced by many water plants in my country. [0003] Membrane separation technology, which emerged in the 1960s, has been widely developed and researched b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/28C02F1/44
Inventor 邓慧萍倪炯金国水尤晓明何音腩
Owner TONGJI UNIV
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