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Method for transforming saline-alkali wasteland into low-pollution water-wet land deep treatment system

A low-pollution water and advanced treatment technology, applied in the direction of biological water/sewage treatment, water/sewage multi-stage treatment, polluted waterway/lake/pond/river treatment, etc., to improve the ecological environment, low cost, and earthwork volume little effect

Inactive Publication Date: 2016-03-16
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

However, according to local conditions, the existing saline-alkali wasteland in the periphery of the lakeside belt is used to transform it into a composite wetland system that can purify low-pollution water, and there is no precedent for reporting and application in my country.

Method used

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  • Method for transforming saline-alkali wasteland into low-pollution water-wet land deep treatment system
  • Method for transforming saline-alkali wasteland into low-pollution water-wet land deep treatment system

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Embodiment Construction

[0048] Combining with the project of "Urban Wastewater Treatment Plant, Industrial Tail Water and Low Concentration Farmland Drainage Wetland Advanced Treatment Phase I Project-Jinhai Wetland", the design and implementation of a low-pollution wetland wetland advanced treatment system was carried out in Luoxia Bay on the west bank of Bosten Lake. See the attachment for the layout of the advanced treatment system for low-pollution water wetland figure 2 . Dongdahan Dry Drainage is the main agricultural irrigation canal on the west bank of Bosten Lake. It mainly receives agricultural irrigation backwater and farmland discharging alkali water from 6000 acres of farmland in Bohu County, Bosten Lake’s west bank area. Its water quality is inferior to surface water. Discharge into Lake Bosten. By adapting measures to local conditions, the Jinhai saline-alkali wasteland located at the mouth of the Dongdahan Drainage Channel on the west bank of Bosten Lake is transformed into a composi...

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Abstract

The invention belongs to the technical field of water pollution control and ecological remediation, and discloses a method for transforming a saline-alkali wasteland into a low-pollution water-wet land deep treatment system. The existing saline-alkali wasteland on the periphery of a lakeside zone is utilized through adaptation to local conditions, and is transformed into the compound system of a surface flow enhanced constructed wetland and a surface flow semi-natural wetland. According to the purifying system, (1) determination of a purifying area and function zoning, (2) a water inlet system, (3) terrain and base transformation, (4) hydrodynamic optimization, (5) vegetation configuration and restoration and (6) ancillary facilities and management are included. Industrial tail water with pollution loads such as suspended solids (SS), salt, BOD5, CODcr, TN and TP and low-concentration farmland drained water are introduced into the compound wetland purifying system for enhanced purification and deep purification, the purified water is drained into a lake through a shoreline wetland, and the ecological environment of the shoreline saline-alkali wetland is repaired while the water entering the lake is improved. The method is a low-pollution water treatment method which is small in investment and takes effect soon.

Description

Technical field [0001] This method provides a method for transforming saline-alkali flatland into a wetland advanced treatment system, which purifies low-polluted water for industrial tail water and low-concentration farmland drainage by combining surface flow enhanced wetland and surface flow semi-natural wetland. , SS, BOD 5 , COD cr The removal rate of major pollutants such as TN, TP, and salinity reaches more than 80%. The method belongs to the technical field of water pollution control and ecological restoration. Background technique [0002] The strengthening of human activities and the impact of the greenhouse effect have caused the water level of some lakes to drop, the lakeside wetland habitat is destroyed, a large number of waste beaches are exposed, and the wetland has lost its proper purification ability. The industrial tail water and low-concentration farmland drainage flowing through the lakeside wasteland are directly discharged into the lake area without effective...

Claims

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Application Information

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IPC IPC(8): E02B1/00E02B3/00C02F9/14
CPCC02F3/28C02F3/32C02F9/00C02F2103/007E02B1/00E02B3/00Y02A40/22
Inventor 胡小贞储昭升庞燕杜劲冬邓占海
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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