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Pretreatment method of high-suspended-solid wastewater for artificial wetland treatment

A constructed wetland and high-suspension technology, applied in the direction of aerobic process treatment, multi-stage water treatment, sustainable biological treatment, etc., can solve the problems of reduced operating load, impact of effluent water quality, difficulty in wetland restoration, etc., to reduce pollutant load , easy operation and maintenance, simple composition

Inactive Publication Date: 2019-04-26
SHENZHEN WENKE GARDENING IND
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  • Description
  • Claims
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Problems solved by technology

[0004] Constructed wetlands have the problem of wetland blockage during operation. After the wetland is blocked, the operating load decreases, the quality of the effluent is affected, and it is difficult to restore the wetland after the blockage

Method used

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  • Pretreatment method of high-suspended-solid wastewater for artificial wetland treatment
  • Pretreatment method of high-suspended-solid wastewater for artificial wetland treatment

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Embodiment Construction

[0022] The following describes the embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the present embodiments are illustrative, not restrictive, and cannot limit the protection scope of the present invention.

[0023] A pretreatment method for treating high-suspended solids wastewater in constructed wetlands. The pretreatment method consists of three constructed wetlands that operate in parallel and operate in turn. Each wetland operates for 3.5 days and rests for 7 days. The minimum flow rate is 0.5m 3 / h·m 2 .

[0024] The constructed wetland monomer includes a bed body, water inlet pipe, water distribution pipe, substrate, water collection pipe, drain pipe and wetland plants, and the wastewater to be treated is evenly distributed on the wetland substrate through the water inlet pipe and water distribution pipe, and the suspended solids in the high-suspended waste water are Interception, to fully reduce the pollutant...

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Abstract

The invention relates to the field of artificial wetlands, specifically to a vertical flow artificial wetland. The invention discloses a pretreatment method of high-suspended-solid wastewater. The pretreatment method comprises three paralleling operation artificial wetland monomers which are operated in turn, wherein each monomer is operated for 3.5 days, and then takes a rest for 7 days; the artificial wetland monomer comprises a bed body, a water inlet pipe, a water distribution pipe, a substrate, a water collection pipe, a water drain pipe and a wetland plant. The high-suspended-solid wastewater is uniformly distributed on the wetland substrate through the water inlet pipe and the water distribution pipe, and suspended solids in the wastewater are intercepted, so that a pollutant load in the subsequent treatment process is fully reduced. The pretreated wastewater is collected into a subsequent treatment facility through the water collection pipe at the bottom of the substrate, and the subsequent treatment facility can be an artificial wetland or a conventional biochemical treatment facility. The invention expands the scope of the pretreatment method and can effectively remove the suspended solids in the high-suspended-solid wastewater, and the whole treatment process has the characteristics of reliable operation, low energy consumption, low maintenance cost and the like.

Description

technical field [0001] The invention relates to the field of constructed wetlands, in particular to vertical flow constructed wetlands. The invention discloses a pretreatment method for wastewater with high suspended matter. Background technique [0002] Sewage wastewater generally contains a certain concentration of suspended solids, so pretreatment is a very important part of the wastewater treatment system, especially for wastewater with high concentrations of suspended solids. Traditional pretreatment methods such as filtration and sedimentation can effectively remove large suspended solids, but are not effective for fine suspended solids and require manual transfer of filtered solid waste. [0003] Constructed wetlands are currently used in more than 30% of my country's regions. The types of wastewater treatment include domestic sewage, industrial wastewater, agricultural wastewater, food processing wastewater, etc., with a scale of 1000-20000m 3 / d. Constructed wetl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/02
CPCC02F3/02C02F3/32C02F2301/08Y02W10/10
Inventor 董世阳高育慧朱喜礼程智鹏王业春毛君竹曾鹏飞汪祥静李文凤皮燕
Owner SHENZHEN WENKE GARDENING IND
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