A kind of integrated equipment and treatment method for advanced treatment of aged leachate
An advanced treatment and leachate technology, which is applied in the treatment of polluted groundwater/leachate, aerobic and anaerobic process treatment, etc. It can solve the problems of difficult treatment of concentrated liquid, high operation and maintenance cost, and large amount of chemical sludge. , to achieve the effect of partial refractory COD reduction
Active Publication Date: 2022-08-05
NANJING CROSS ENVIRONMENTAL TECH CO LTD +1
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Problems solved by technology
[0007] Aiming at the problems of membrane fouling, high operation and maintenance costs, and difficult treatment of concentrated liquid in the membrane separation technology in the existing advanced treatment technology of aged leachate, and the problems of high processing cost and large amount of chemical sludge in the advanced oxidation technology, the present invention An integrated equipment and treatment method for advanced treatment of aged leachate are provided, wherein:
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Embodiment 1
[0086] The integrated equipment for advanced treatment of aged leachate provided in the present invention is used to treat aged leachate pretreated by a high-efficiency denitrification system for aged landfill leachate combined with humic packing aerobic fixed bed hypoxia MBR.
[0087] like Figure 5 As shown, in this embodiment, the specific structure of the alternate internal circulation biological filter 30 is the same as the structure in Embodiment 1 of "Patent No. 201510403832.2, a sewage treatment device for alternate internal circulation biological filter and its using method". The water inflow is 50t / d, and the filter surface area of the biological filter is 25m 2 , the design is 3m×8.4m, divided into two filter tanks, and the filling volume is about 38m 3 , the hydraulic load is 2m / d, the height of the bottom water distribution chamber is 600mm, the height of the support layer 33 is 50mm, the filler layer 32 above the support layer 33 is made of 3-4mm PE plastic pa...
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Abstract
The invention discloses an integrated equipment and a processing method for advanced treatment of aged leachate. It includes an alternate internal circulation biological filter, a powder activated carbon adsorption and clarification tank, and a powder activated carbon slurry mixing tank; the powder activated carbon adsorption and clarification tank includes a central water inlet pipe arranged inside the tank body and a hollow ball filled in the central water inlet pipe; The top of the central water inlet pipe is the water inlet end, which is communicated with the alternate internal circulation biological filter and the powder activated carbon slurry mixing tank through the pipeline; the bottom of the central water inlet pipe is the water outlet end, and is provided with an open-hole filter plate; the open-hole filter plate A circular cone-shaped diversion bucket is arranged below; a lift pump is arranged on the communication pipeline between the central water inlet pipe and the powder activated carbon slurry mixing tank. Using the above equipment for advanced treatment of aged leachate can not only achieve the removal of nitrogen and refractory COD and other pollutants in the water body, but also realize the removal of powdered activated carbon, ensuring clarification of effluent and good water purification effect.
Description
technical field [0001] The invention belongs to the technical field of sewage treatment, and more particularly relates to an integrated equipment and a treatment method for the advanced treatment of aged leachate in an alternate internal circulation biological filter tank with powder activated carbon adsorption and clarification tank. Background technique [0002] There are 27,000 informal landfills and more than 1,600 formal sanitary landfills in my country. The total amount of waste in stock exceeds 8 billion tons, covering an area of about 500 million square meters. There are two common solutions to the problem of aging leachate treatment in the process of stock domestic waste treatment: ① transport the leachate to a formal landfill leachate treatment plant for treatment; ② build a nearby leachate treatment facility or use mobile treatment equipment Treatment, and discharge or direct discharge after reaching the standard. The former has high transportation costs and is...
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IPC IPC(8): C02F3/30C02F103/06
CPCC02F3/30C02F2103/06
Inventor 吴军朱俊伟杨智力王雨纯郭小境吕宜廉罗培康李丹阳李志远马海涛焦冠通
Owner NANJING CROSS ENVIRONMENTAL TECH CO LTD