Dyeing wastewater multistage combined treatment system and treatment process
A technology of printing and dyeing sewage, combined treatment, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, textile industry wastewater treatment, etc. Shock load and other problems, to achieve the effect of strong shock load resistance, reliable performance and stable water output
Pending Publication Date: 2018-01-19
浙江鑫广环保科技有限公司
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Problems solved by technology
The printing and dyeing sewage treatment system cannot well reduce the impact load generated by the fluctuation of influent water quality on the subsequent aerobic biological main treatment system.
Method used
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[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0035] Such as figure 1 The multi-stage joint treatment system for printing and dyeing sewage shown includes a steady flow pool 1, a grid pool 2, a regulating pool 3, a coagulation pool 4, an anaerobic hydrolysis acidification pool 5, and an aerobic biological oxidation pool connected sequentially through pipelines. Pool 6, sedimentation tank 7, biological activated carbon purification tower 8, the bottom of coagulation tank, aerobic biological oxidation tank and sedimentation tank are connected with sludge thickening tank 9 through pipelines, and sludge thickening tank is connected with sludge dehydrator 10. An aeration pipe 11 is connected to the bottom of the oxygen biological oxidation tank, and an air intake pipe 12 is connected to the bottom of the activated carbon purification tower. Second baffle 15 (see figure 2 ), the first baffle ...
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The invention discloses a dyeing wastewater multistage combined treatment system, which comprises an equalization pond, a grille tank, a regulating tank, a coagulating tank, an anoxic hydrolysis-acidification tank, an aerobic biological oxidation tank, a sedimentation tank and a biological activated carbon purification tower, which are successively connected through pipelines. Bottoms of the coagulating tank, the aerobic biological oxidation tank and the sedimentation tank are connected to a sludge thickener through pipelines. The sludge thickener is connected to a sludge dewaterer. The bottomof the aerobic biological oxidation tank is provided with an aeration pipe. The bottom of the activated carbon purification tower is connected with an air inlet pipe. The aeration pipe and the air inlet pipe are connected to a blower through pipelines. The dyeing wastewater multistage combined treatment system has advantages of high treatment efficiency, good treatment effect, strong resistance to shock load, reliable performance, stable effluent, low operational cost, no secondary pollution and the like. The invention also discloses a dyeing wastewater multistage combined treatment process,which has advantages of simple step, strong operationality and low treatment cost.
Description
technical field [0001] The invention relates to the treatment of printing and dyeing sewage, in particular to a multi-stage combined treatment system and treatment process for printing and dyeing sewage. Background technique [0002] In recent years, due to the development of printing and finishing technology and new chemical fibers, some biodegradable organic pollutants such as: refractory new dyes, polyvinyl alcohol PVA, and new auxiliaries have entered printing and dyeing wastewater in large quantities, resulting in the biodegradability of wastewater. The drop is lower, which seriously affects the treatment effect of printing and dyeing wastewater. Even after physical-chemical-biochemical treatment, the secondary effluent still has a large amount of complex refractory organic pollutants, so better technologies for advanced treatment of printing and dyeing wastewater are required. Although some physical and chemical methods have certain effects on the advanced treatment o...
Claims
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IPC IPC(8): C02F9/14C02F103/30
Inventor 胡其木
Owner 浙江鑫广环保科技有限公司