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Composite artificial marshland water quality clarification system in north low-temperature area

A constructed wetland system and composite technology, which is applied in the field of composite constructed wetland system to achieve the effects of simple management, good treatment effect, significant economic benefits and ecological benefits

Inactive Publication Date: 2007-12-05
北京市水利科学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is still rare to use artificial wetlands to purify and treat polluted source water in rivers (or storage) in low-temperature areas in the north.

Method used

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  • Composite artificial marshland water quality clarification system in north low-temperature area
  • Composite artificial marshland water quality clarification system in north low-temperature area
  • Composite artificial marshland water quality clarification system in north low-temperature area

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Experimental program
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Embodiment Construction

[0023] As shown in Figure 1, build a backwater overflow dam 2 in the main channel 1 of the river (those who can directly divert water do not need to build a dam), raise the water level of the river, and build a diversion channel 3 upstream of the overflow dam to divert water into the stabilization pond . For the purpose of improving the water quality of river courses or reservoirs, it is advisable to set up backwater overflow dams at key control parts to guide the full amount of heavily polluted base flow into stabilization ponds for purification (such as the reservoir entry section); for regional water supply pre-treatment purposes, The design flow water source can be directly introduced according to the conditions. The storage capacity of the stabilizing pond should be such that the water flowing into the stabilizing pond can stay in the pond for 6-8 days. The diversion permeable dike 4 is arranged at the head of the stabilizing pond (it can be piled up with pebbles or bloc...

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Abstract

The composite water-purifying wetland system for northern low temperature region consists of three serially connected subsystems, including one stabilizing pond subsystem, one undercurrent wetland subsystem and one water draining pond subsystem. The stabilizing pond subsystem has one flexible partitioning wall to separate the pond into one front reservoir and one purifying area, and planted emergent vegetation zones and submerged plant zones. The undercurrent wetland subsystem consists of sand filtering modules, wetland modules and aerating water-distributing wells. The water draining pond subsystem consists of water draining canals and serially connected biological ponds. The present invention has well combined engineering measures and ecological measures to purifying polluted water for several times, saving in investment, high water purifying effect and high economic and ecological benefits.

Description

1. Technical field [0001] The invention relates to a sewage treatment system, in particular to a compound artificial wetland system for purifying and treating polluted source water of rivers in low-temperature areas in the north. 2. Background technology [0002] Due to urban population growth and rapid economic development, the demand for water in cities is gradually increasing. In my country, most cities rely on reservoirs for water supply, especially in the arid northern regions where water resources are scarce, and reservoirs have become an indispensable source of water for urban water supply systems. However, with the rapid development of social economy, the pollution of rivers is becoming more and more serious, and there is a situation where all the water is polluted. The river has become a sewage ditch for cities along the river. The functions of water sources are degrading day by day, and the security of urban water supply is seriously threatened. Purifying the wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/02
CPCY02W10/10
Inventor 李其军刘培斌段伟黄炳彬智泓关卓今刘操
Owner 北京市水利科学研究所
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