Landscape-type recycled water treatment wetland system suitable for urban community

A wetland and community technology, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., can solve the problem that the effluent of secondary treatment may not meet the requirements of reuse, and achieve landscape effect Beautiful, reduced operation and management costs, and low construction costs

Inactive Publication Date: 2011-02-09
YANGTZE RIVER WATER RESOURCES PROTECTION SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Influent water quality and effluent requirements determine the reclaimed water treatment process. Conventional secondary treatment effluent may not meet the reuse requirements, so advanced treatment of secondary treatment effluent is required

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The perennial underground roots of reeds, wild rice stems, water willows, and water onions are used according to the planting mode of ... reed row... water bamboo row... reed row... water willow row... reed row... water spring onion row...reed row (row spacing 50cm, plant spacing 20cm) The planting mode is in the thickness A subsurface flow constructed wetland reclaimed water purification system was built on a gravel matrix with a particle size of about 70 cm and a particle size of about 5 cm. During the period from September 13 to November 21, 2005, its removal efficiency could reach COD cr 0.807g m -2 d -1 , TN 0.054g m -2 d -1 , TP 0.27g m -2 d -1 ; The evapotranspiration of the wetland with reed composite vegetation reaches 3.16mm m -2 d -1 .

Embodiment 2

[0025] The perennial underground roots of reeds, wild rice stems, water willows, and water onions are used according to the planting mode of ... reed row... water bamboo row... reed row... water willow row... reed row... water spring onion row...reed row (row spacing 50cm, plant spacing 30cm) planting mode in the thickness A subsurface flow constructed wetland reclaimed water purification system was built on a gravel matrix with a particle size of about 70 cm and a particle size of about 5 cm. During the period from September 13 to November 21, 2005, its removal efficiency could reach COD cr 0.708g m -2 d -1 , TN 0.018g m -2 d -1 , TP 0.26g m -2 d -1 ; The evapotranspiration of the wetland with reed composite vegetation reaches 3.13 mm m -2 d -1 .

Embodiment 3

[0027] The perennial underground roots of reeds, wild rice stems, water willows, and water onions are used according to the planting mode of ... reed row... water bamboo row... reed row... water willow row... reed row... water onion row...reed row (row spacing 60cm, plant spacing 30cm) planting mode in thickness A subsurface flow constructed wetland reclaimed water purification system was built on a gravel matrix with a particle size of about 70 cm and a particle size of about 5 cm. During the period from September 13 to November 21, 2005, its removal efficiency could reach COD cr 0.658g m -2 d -1 , TN 0.029g m -2 d -1 , TP 0.52g m -2 d -1 ; The evapotranspiration of the wetland with reed composite vegetation reaches 2.88mm m -2 d -1 .

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Abstract

The invention discloses a landscape-type recycled water treatment wetland system suitable for an urban community, which comprises a wetland pool; reed, zizania aquatica, water willow and scirpus validus vahl are planted in the wetland pool; rows of the zizania aquatica, water willow and scirpus validus vahl are mixed among the rows of the reed; and the rows of the zizania aquatica, water willow and scirpus validus vahl mixed among the rows of the reed are single or various. The landscape-type recycled water treatment wetland system has the advantages that: the system has high efficiency for water purification, high yield of vegetation, wide range of application, low construction cost, convenient operation and management, good landscape effect and large wetland evapotranspiration.

Description

technical field [0001] The invention relates to the technical field of urban water treatment, in particular to a landscape-type gray water treatment wetland system suitable for urban communities. Background technique [0002] The water quality of reclaimed water is between clean water (upper water) and sewage (lower water). It can replace non-drinking water and tap water that is not in direct contact with the human body. It is also called "circulating water", "reclaimed water" or "regenerated water". . Reuse of reclaimed water is to treat sewage into reclaimed water and use it. After sewage treatment, it was used as landscape water in the 1830s. The United States, Japan, Australia and other countries have developed more countries. Tama River in Tokyo, Japan, and the United States World-renowned water reuse projects such as Santee and Nanta Lake in California. Japan is a model in the use of recycled water for landscape water bodies. As early as the 1960s, it began to try to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 尹炜靖德兵雷俊山王孟杨国胜叶闽雷阿林
Owner YANGTZE RIVER WATER RESOURCES PROTECTION SCI RES INST
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