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System for intensifying constructed wetland sewage treatment effect

A technology for artificial wetland and sewage treatment, applied in the field of artificial wetland sewage treatment system, can solve problems such as not seen, achieve the effect of enhancing adsorption performance, realizing resource utilization and recycling, and realizing sustainable operation

Inactive Publication Date: 2017-05-10
CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is still no technology to better solve the above problems

Method used

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  • System for intensifying constructed wetland sewage treatment effect
  • System for intensifying constructed wetland sewage treatment effect

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Embodiment

[0032] see figure 1 , this embodiment provides a system for enhancing the sewage treatment effect of constructed wetlands. First, construct two common constructed wetlands with a size of 5*20m. Transform one of the constructed wetlands into the constructed wetland of the present invention: wherein the longitudinal section area of ​​the biochar filter tank 2 is 10 times the longitudinal section area of ​​the water inlet system 1, and the thickness is 0.5m, wherein the activated biochar 6 per Replaced every six months; the first batch of wetland plant 4 raw materials for preparing activated biochar 6 was replaced by straw, and the first batch of artificial wetland substrates were ordinary wetland substrates without activated biochar, followed by dried and crushed wetland plants 4 and wetland substrates 3 (collected directly from the constructed wetland 8) is prepared by mixing the activated biochar 6 according to the mass (dry weight) ratio of 4:1; the wetland plant 4 is reed, w...

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Abstract

The invention relates to a system for intensifying a constructed wetland sewage treatment effect. The system comprises a water inlet system, a water inlet bio-char filtering tank, a wetland matrix, wetland plants and a water discharge system, wherein the bio-char filtering tank is filled with activated bio-char, the wetland plants are planted on the wetland matrix, and the wetland matrix comprises a constructed wetland matrix and the activated bio-char. A preparation method of the activated bio-char includes the steps of firstly, sequentially drying and crushing harvested wetland plants; secondly, sequentially drying and crushing the constructed wetland matrix; thirdly, sufficiently mixing the crushed wetland plants and the constructed wetland matrix according to the mass ratio of (3-5):1 to obtain a mixture; fourthly, performing high-temperature pyrolysis on the mixture under an oxygen deficient condition to obtain bio-char; fifthly, performing acid activation on the bio-char to obtain the activated bio-char.

Description

technical field [0001] The invention relates to a constructed wetland sewage treatment system, in particular to a system for enhancing the treatment effect of constructed wetland sewage. Background technique [0002] At present, artificial wetland is a kind of wetland ecosystem for sewage treatment constructed by simulating natural wetland, and it is a sewage treatment technology that is continuously improved and perfected. The basic principle of constructed wetland sewage treatment is: to plant water purification plants with strong pollution resistance on a certain substrate. When the sewage flows through, a series of physical, chemical and biological reactions such as substrate, plants and microorganisms will make the concentration of pollutants Reduced and discharged after water purification. [0003] Constructed wetland sewage treatment system has been widely used in our country. However, there are still some problems in constructed wetlands that restrict the applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCC02F3/32Y02W10/10
Inventor 武海鹏陈进许继军桑连海代娟尹正杰刘强殷大聪叶玉适
Owner CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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