Constructed wetland system for treating sewage
A constructed wetland system and sewage technology, applied in multi-stage water treatment, multi-stage water/sewage treatment, biological water/sewage treatment, etc., can solve the problems of high energy consumption for technical maintenance, low utilization rate of water plants, impact resistance Weakness and other problems, to achieve the effect of reducing the risk of secondary pollution, reducing operating costs, and low water output
Inactive Publication Date: 2016-07-20
CHINA UNIV OF MINING & TECH
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Problems solved by technology
However, the impact resistance of this mode is weak, and the normal operation of the process requires technical maintenance and high energy consumption, resulting in low utilization rate of water plants and difficult supervision and other problems.
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[0025] The present invention will be further explained below in conjunction with the accompanying drawings.
[0026] Such as figure 1 As shown, a constructed wetland system for treating sewage in the present invention includes a reaction device 1 , a facultative treatment device 2 , a pump 3 , and an aerobic treatment device 4 .
[0027] The reaction device 1 includes a water inlet 11 and a water outlet 12 , the water inlet 11 is used to introduce sewage into the reaction device 1 , and the water outlet 12 is used to discharge the sewage treated by the reaction device 1 . The reaction device 1 takes into account the functions of adjustment, sedimentation and anaerobic biological treatment, and can remove part of suspended particles SS and organic matter COD and BOD in sewage, and can regularly exhaust and remove mud.
[0028] Preferably, the bottom wall of the reaction device 1 is at an inclination angle of 2°-5° to the horizontal plane, preferably 3°, and the side of the bot...
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The invention discloses a constructed wetland system for treating sewage. The constructed wetland system comprises a reaction device, a facultative treatment device, a pump and an aerobic treatment device, wherein the reaction device comprises a water inlet and a water outlet; the facultative treatment device comprises a liquid inlet and a liquid outlet, the sidewall of one side of the liquid inlet of the facultative treatment device is provided with a pebble filter layer, the sidewall of one side of the liquid outlet of the facultative treatment device is provided with a flow guiding layer, a first supporting layer is arranged on the bottom wall of the facultative treatment device, a fine-sand clay layer and a first heat insulating layer are sequentially arranged on the first supporting layer, a partition plate is arranged between the pebble filter layer and the fine-sand clay layer, and through holes are formed in the bottom of the partition plate; a second supporting layer is arranged on the bottom wall of the aerobic treatment device, a coarse-sand sludge layer is arranged on the second supporting layer, a second heat insulating layer is arranged on the coarse-sand sludge layer, and the coarse-sand sludge layer of the aerobic treatment device communicates with the liquid outlet of the facultative treatment device. The constructed wetland system disclosed by the invention is simple in process flow, high in impact resistance and low in energy consumption.
Description
technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an artificial wetland system for treating sewage. Background technique [0002] With the expansion of cities and towns in my country and the expansion of rural sewage treatment needs, the traditional mode of collecting through municipal pipe networks and centralized urban sewage treatment cannot meet the existing water treatment requirements. The decentralized sewage treatment technology that began to be studied in the 1990s made up for the shortcomings of centralized sewage treatment to a certain extent. [0003] However, most of the current decentralized sewage treatment processes directly copy the urban sewage treatment process, forming a sewage treatment model with activated sludge and its improvement methods as the main body, and producing different types of treatment processes and equipment. This model can solve the problem of sewage treatment in remote areas to a...
Claims
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Login to View More IPC IPC(8): C02F9/14
CPCC02F3/30C02F3/32C02F9/00C02F2301/08
Inventor 肖昕罗萍嘉孙晓菲张浩嘉
Owner CHINA UNIV OF MINING & TECH