Water purification comprehensive wetland system

A water purification and wetland technology, applied in water/sewage treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problem that the treatment capacity cannot keep up with the tail water discharge of urban sewage treatment plants, and the tail water cannot be realized Purification and other issues, to achieve the effect of suitable promotion, convenient construction and low cost

Inactive Publication Date: 2019-09-03
南京泽辉环保科技有限公司
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  • Application Information

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Problems solved by technology

[0002] At present, the tail water of urban sewage treatment plants in my country is generally discharged in a concentrated manner, and the pollutants in the tail water are further degraded by using the self-purification ability of the river, and the water body self-purification ability of the receiving river is fully utilized. However, with the acceleration of urbanization in my country, As a result, the self-purification treatment capacity of the receiving river cannot keep up with the discharge of the tail water of the urban sewage treatment plant, and further purification of the tail water cannot be achieved. Therefore, it is necessary to construct an advanced treatment project for the tail water of the urban sewage treatment plant

Method used

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Embodiment 1

[0037] The influent of this embodiment comes from the tail water of the sewage treatment plant;

[0038] Such as figure 1 As shown, the tail water of the sewage treatment plant enters the comprehensive wetland system for water quality purification as raw water to be treated. The comprehensive wetland system for water quality purification includes a pretreatment system and a comprehensive wetland system. The pretreatment system includes a biologically enhanced sedimentation tank. The wetland system includes micro-aeration vertical flow wetlands, horizontal subsurface flow wetlands and landscape wetlands. After the raw water is treated in sequence by biologically enhanced sedimentation tanks, micro-aeration vertical flow wetlands, horizontal subsurface flow wetlands and landscape wetlands, the water quality is purified;

[0039] Such as image 3 , 4 As shown, the bio-augmented sedimentation tank includes a bio-augmented sedimentation tank body 1, a bio-augmented sedimentation ...

Embodiment 2

[0055] In order to treat high-concentration wastewater, especially domestic sewage in rural areas that lack sewage collection and treatment facilities, this embodiment upgrades the pretreatment system on the basis of Embodiment 1. The raw water to be treated in this embodiment comes from a rural area Rivers polluted by domestic sewage;

[0056] Such as figure 2 As shown, raw water enters the comprehensive wetland system for water quality purification. The comprehensive wetland system for water quality purification includes a pretreatment system and a comprehensive wetland system. The pretreatment system includes a regulating tank, a flocculation sedimentation tank, a biologically enhanced sedimentation tank, and a sludge drying field , the comprehensive wetland system includes a micro-aeration vertical flow wetland, a horizontal subsurface flow wetland and a landscape wetland. After being purified, the bottom sludge in the regulating tank, flocculation sedimentation tank and...

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Abstract

The invention provides a water purification comprehensive wetland system. According to the system, based on urban sewage treatment plant tail water, a pretreatment system and a wetland purification system are constructed, the suspended solids are removed from the tail water by using a biologically enhanced precipitation pool, the nitrogen is removed from the raw water by combining a micro-aerationvertical flow wetland and a horizontal underground flow wetland through nitrification-denitrification, and the phosphorus is removed from the raw water through a landscape wetland, such that the treatment of the raw water is completely through the water purification comprehensive wetland system; and based on the domestic sewage in rural areas lacking sewage collection and treatment facilities, anadjusting pool, a flocculation precipitation pool and a sludge treatment device are additionally arranged in the pretreatment system to further remove debris and suspended solids so as to treat the sludge and prevent the clogging. According to the present invention, the system has advantages of convenient construction, utilization of vacant space, low cost, long-term operation and water purification, and is suitable for promotion.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a comprehensive wetland system for water quality purification. Background technique [0002] At present, the tail water of urban sewage treatment plants in my country is generally discharged in a concentrated manner, and the pollutants in the tail water are further degraded by using the self-purification ability of the river, and the water body self-purification ability of the receiving river is fully utilized. However, with the acceleration of urbanization in my country, As a result, the self-purification treatment capacity of the receiving river cannot keep up with the discharge of the tail water of the urban sewage treatment plant, and further purification of the tail water cannot be achieved. Therefore, it is necessary to construct an advanced treatment project for the tail water of the urban sewage treatment plant. [0003] Since urban sewage treatment plants mostly adopt matu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/32C02F9/14C02F11/12
CPCC02F1/001C02F1/5236C02F1/56C02F3/302C02F3/32C02F9/00C02F11/12
Inventor 柯凡刁飞潘继征王磊
Owner 南京泽辉环保科技有限公司
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