Efficient ecological waste water treating apparatus and method

An ecological treatment and waste water technology, applied in the direction of sustainable biological treatment, water/sewage multi-stage treatment, biological water/sewage treatment, etc., can solve the problems of small amount of sewage treatment, complex operation management, wetland plant death, etc., and achieve improvement Effects of effective volume, wide range of sources, and optimization of water collection methods

Inactive Publication Date: 2007-01-03
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when these technologies are directly used for the treatment of special wastewater such as petroleum industry and landfill leachate, the removal rate of nitrogen, phosphorus and organic matter is not higher than 20%, and problems such as wetland plant death, short flow of sewage and matrix blockage are prone to occur. And there are problems such as small sewage treatment volume, large floor area, and complicated operation and management.

Method used

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  • Efficient ecological waste water treating apparatus and method

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Experimental program
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Effect test

Embodiment 1

[0032] The filler in the gravel contact oxidation zone is mixed with 30% ash and 70% gravel by volume, the depth of the filler bed is 1.3m, and the backwash cycle is 30-60d; 50% of slag, 20% of gravel, 20% of zeolite, 5% of activated carbon, and 5% of humus are mixed and formulated to be effective. The depth of the packing bed is 100cm and 80cm respectively; the vertical upflow artificial wetland is planted with canna, red grass and golden leaf, The area ratio is 8:1:1, and reeds are planted in the horizontal flow artificial wetland; the water distribution pipe and the water collection pipe are UPVC pipes with a diameter of 25mm, and holes are drilled at intervals along both sides of 90 degrees, the hole spacing is 5cm, the hole diameter is 3mm, and the water collection pipe is 50mm The UPVC pipe is drilled at intervals along both sides of 90 degrees, the hole spacing is 10cm, and the hole diameter is 10mm. According to the total area, the hydraulic load rate of the system is ...

Embodiment 2

[0034] The filler in the inter-gravel contact oxidation zone is made of a mixture of 50% ash and 50% gravel by volume, the depth of the filler bed is 1.4m, and the backwash cycle is 30-60d; 55% of slag, 15% of gravel, 15% of zeolite, 10% of activated carbon, and 5% of humus are mixed and formulated to be effective. The depth of the packing bed is 110cm and 90cm respectively; the vertical upflow artificial wetland is planted with canna, red grass and golden leaf, The area ratio is 8:1:1, and reeds are planted in the horizontal flow artificial wetland; the water distribution pipe and the water collection pipe are UPVC pipes with a diameter of 25mm, and holes are drilled at intervals along both sides of 90 degrees, the hole spacing is 5cm, the hole diameter is 3mm, and the water collection pipe is 50mm The UPVC pipe is drilled at intervals along both sides of 90 degrees, the hole spacing is 10cm, and the hole diameter is 10mm. According to the total area, the hydraulic load rate ...

Embodiment 3

[0036] The filler in the inter-gravel contact oxidation zone is made of a mixture of 60% ash and 40% gravel by volume, the depth of the filler bed is 1.5m, and the backwash cycle is 30-60d; 60% of slag, 10% of gravel, 10% of zeolite, 15% of activated carbon, and 5% of humus are mixed and formulated to be effective. The depth of the packing bed is 120cm and 100cm respectively; the vertical upflow artificial wetland is planted with canna, red grass and golden leaf, The area ratio is 8:1:1, and reeds are planted in the horizontal flow artificial wetland; the water distribution pipe and the water collection pipe are UPVC pipes with a diameter of 25mm, and holes are drilled at intervals along both sides of 90 degrees, the hole spacing is 5cm, the hole diameter is 3mm, and the water collection pipe is 50mm The UPVC pipe is drilled at intervals along both sides of 90 degrees, the hole spacing is 10cm, and the hole diameter is 10mm. According to the total area, the hydraulic load rate...

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Abstract

The present invention is efficient ecological waste water treating apparatus and method. The apparatus consists of grit contacting oxidizing area, vertical upstream flow artificial wet land area, aerating jet area and horizontal flow artificial wet land area connected serially. The present invention has the advantages of composite medium in new recipe resulting in excellent phosphate and organic matter eliminating effect, the grit contacting oxidizing resulting in the long term stable running of the system, the composite of vertical upstream flow artificial wet land and horizontal flow artificial wet land resulting in raised effective volume and the aerating jet creating condition for aerobic degrading of organic matter.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to a high-efficiency wastewater ecological treatment device and method for advanced treatment of refractory organic wastewater and simultaneous removal of phosphorus and nitrogen. Background technique [0002] With the rapid development of social economy, worldwide environmental problems are becoming more and more prominent, especially the pollution of special wastewater produced by large-scale industrial production and landfill, which is becoming more and more serious. A large amount of organic matter, nitrogen, phosphorus and other pollutants produced by production departments such as the petroleum industry and urban waste landfills enter the water body, causing the water body to face serious dangers of toxic and harmful pollution and eutrophication. [0003] At present, some biological treatment methods, such as A / O method, SBR method, oxidation ditch, biofilter and membrane biore...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F3/02C02F3/32C02F3/28C02F3/30C02F7/00
CPCY02W10/10
Inventor 籍国东倪晋仁叶正芳
Owner PEKING UNIV
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