Efficient ecological waste water treating apparatus and method

An ecological treatment and waste water technology, applied in sustainable biological treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of wetland plant death, complex operation and management, and small amount of sewage treatment, and achieve Optimized water collection method, increased effective volume, and prevented clogging

Inactive Publication Date: 2005-09-28
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%,

Method used

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  • Efficient ecological waste water treating apparatus and method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1

[0032] The filler in the contact oxidation zone between gravels is mixed with 30% ash and 70% gravel by volume. The depth of the filler bed is 1.3m, and the backwash period is 30-60d; the vertical upstream and horizontal flow constructed wetland matrix composite fillers are based on the volume ratio of ash The slag is 50%, gravel 20%, zeolite 20%, activated carbon 5%, and humus 5% are mixed to make it effective. The depth of the packing bed is 100cm and 80cm respectively. Canna, red grass and golden leaves are grown in vertical upstream constructed wetlands. The area ratio is 8:1:1. Reeds are planted in horizontal flow constructed wetlands; the water distribution pipes and water collection pipes are made of UPVC pipes with a diameter of 25mm, and holes are drilled downwards along both sides of 90 degrees. The hole spacing is 5cm, the diameter is 3mm, and the water collection pipe is 50mm. The UPVC pipes are punched at intervals along both sides of 90 degrees, wi...

Example Embodiment

[0033] Example 2

[0034] The filler in the contact oxidation zone between gravels is mixed with 50% ash and 50% gravel by volume. The depth of the filler bed is 1.4m, and the backwash period is 30-60d; the vertical upward flow and horizontal flow constructed wetland matrix composite filler is based on the volume ratio of ash The slag is 55%, gravel 15%, zeolite 15%, activated carbon 10%, and humus 5% are mixed and effective. The depth of the packed bed is 110cm and 90cm respectively. Canna, red grass and golden leaves are grown in vertical upstream constructed wetlands. The area ratio is 8:1:1. Reeds are planted in horizontal flow constructed wetlands; the water distribution pipes and water collection pipes are made of UPVC pipes with a diameter of 25mm, and holes are drilled downwards along both sides of 90 degrees. The hole spacing is 5cm, the diameter is 3mm, and the water collection pipe is 50mm. The UPVC pipes are punched at intervals along both sides of 90 degrees, with a h...

Example Embodiment

[0035] Example 3

[0036] The filler in the contact oxidation zone between gravel is mixed with 60% ash and 40% gravel by volume. The depth of the filler bed is 1.5m, and the backwash period is 30-60d; the vertical upward flow and horizontal flow constructed wetland matrix composite filler is based on the volume ratio of ash 60% of slag, 10% of gravel, 10% of zeolite, 15% of activated carbon, and 5% of humus are effective. The depth of the packing bed is 120cm and 100cm respectively. Canna, red grass and golden leaves are grown in vertical upstream constructed wetlands. The area ratio is 8:1:1. Reeds are planted in horizontal flow constructed wetlands; the water distribution pipes and water collection pipes are made of 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 diameter is 3mm, and the water collection pipe is 50mm. The UPVC pipes are punched at intervals along both sides of 90 degrees, with a...

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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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IPC IPC(8): C02F3/02C02F3/32C02F7/00
CPCY02W10/10
Inventor 籍国东倪晋仁叶正芳
Owner PEKING UNIV
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