Water purifying method of uniform flow constructed wetland

A technology for the purification of constructed wetlands and water bodies, which is applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. District, stable operation, and the effect of expanding living space

Active Publication Date: 2012-03-21
恒晟水环境治理股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Previous studies on constructed wetlands found that the decline in the purification effect of constructed wetlands is related to the occurrence of short-flow phenomena inside the matrix

Method used

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  • Water purifying method of uniform flow constructed wetland
  • Water purifying method of uniform flow constructed wetland
  • Water purifying method of uniform flow constructed wetland

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0013] As shown in the attached figure, build a constructed wetland pool with a size of 100cm×50cm×100cm (L×W×H), an effective volume of 170L, a hydraulic retention time of 18h, and a daily treatment capacity of 227L / d. The wetland pool body is made of PVC board with a thickness of 10mm. There is a water inlet (valve) 1 with a diameter of 20mm on one wall of the wetland pool, and a water outlet (valve) 2 on the other wall of the wetland pool. The caliber is 20mm. The water inlet 1 and the water outlet 2 are each provided with a length of 10cm. The water distribution area 4 and the water collection area 3 are filled with pebbles with a particle size of 30mm to 50mm. The middle part of the artificial wetland pool is the main filling area 11, which is divided into five layers and filled with screened For quartz sand with different particle sizes, the length of the main filler area 11 is 80cm, and the filling height is 85cm; the filling sequence from top to bottom is: the first la...

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Abstract

The invention discloses a water purifying method of a uniform flow constructed wetland. A constructed wetland is established; a water inlet end is arranged on one wall of the wetland pool, and a water outlet end is arranged on the other wall of the wetland pool; the water inlet end and the water outlet end are respectively provided with a water distributing zone and a water gathering ground, which are filled with cobblestones with a particle size of 30-50mm; a main body filling material zone comprises, from top to bottom: a first layer filter pack filled with a quartz sand filling material with a particle size of 0.1-1 mm, a second layer filter pack filled with a quartz sand filling material with a particle size of 0.1-3mm; a third layer filter pack filled with a quartz sand filling material with a particle size of 1-3 mm; a fourth layer filter pack filled with a quartz sand filling material with a particle size of 1-5 mm; a fifth layer filter pack filled with a quartz sand filling material with a particle size of 3-7 mm; and humidogene emergent aquatic plant plants are planted on top of the first layer filter pack. The invention can be used in treatment of household sewage in cities and towns and industrial wastewater of food processing industry and slaughter industry, etc., so as to avoid current short flow and formation of a dead zone and remove pollutants efficiently.

Description

technical field [0001] The invention belongs to a method for treating sewage, and in particular relates to a method for treating uniform flow artificial wetland water body. Background technique [0002] With the acceleration of China's industrialization process, water pollution control is facing more and more challenges. Constructed wetland is a composite process combining natural purification and artificial enhancement. It can adopt an appropriate scale according to the amount of sewage, and can be used for direct treatment and advanced treatment of polluted water. Compared with traditional secondary biochemical treatment, constructed wetland has the advantages of low construction and operation costs, simple maintenance, good effluent quality and strong adaptability to load changes. It is more suitable for sewage treatment in small towns or villages with low technical management level and small scale. On the premise of promoting a virtuous cycle of pollutants in wastewate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/10C02F3/34
CPCY02W10/10
Inventor 白少元王敦球陈腾殊张华
Owner 恒晟水环境治理股份有限公司
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