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Moving bed biofilm oxidation-ultrafiltration combined remediation method for landscape water

A technology of moving bed biofilm and joint restoration, applied in the field of landscape water treatment, can solve the problems of loss of function in the stable and orderly evolution of the ecosystem, serious pollution of landscape water, and impact on human sustainable development. Good gas effect, solve the nutritional imbalance of microorganisms, easy and compact attachment and growth

Active Publication Date: 2019-02-01
SHENGSHI LANDSCAPE GRP CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] However, at present, the landscape water body is seriously polluted, the problem of eutrophication is intensified, and the function of the stable and orderly evolution of its ecosystem is constantly being lost, which affects human health and the sustainable development of the ecological environment. Therefore, the restoration technology of landscape water bodies has also become a domestic Hotspots of Foreign Scholars' Research
[0004] Bioremediation and membrane separation technology are commonly used landscape water body restoration technologies. In biological treatment technology, biological filler is a place for microbial growth and reproduction, metabolism and degradation of pollutants. It is the core technology of bioremediation. At present, there are ineffective treatment effects. Stable, greatly affected by water quality and other issues, the treated water still contains small molecule organic matter and microorganisms
However, in membrane separation technology, polymeric organic matter and microorganisms will cause clogging of the filter membrane, resulting in a decrease in water flux, and cleaning with chemicals will introduce new pollutants

Method used

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  • Moving bed biofilm oxidation-ultrafiltration combined remediation method for landscape water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1As shown, a combined moving bed biofilm oxidation-ultrafiltration repair method for landscape water body includes three parts: moving bed biofilm oxidation system, ultrafiltration treatment system, and online monitoring system. The moving bed biofilm oxidation system includes a moving bed biofilm reactor 7. The top of the moving bed biofilm reactor 7 is open, and there is a nutrient slow-release magnetic filler 6 inside. The bottom of the moving bed biofilm reactor 7 is connected to an aeration pipe. 9. The other end of the aeration pipe 9 is connected with a blower 8; the water inlet of the moving bed biofilm reactor 7 is connected with a water inlet pipe 2, and the water outlet is connected with a water delivery pipe, and the water inlet pipe 2 is provided with a water pump 3 and a first valve 4. The multi-parameter water quality detector 5, the end of the water inlet pipe 2 extends into the bottom of the regulating pool 1. The ultrafiltration treatme...

Embodiment 2

[0052] The structure and connection mode of the reactor are the same as those in Example 1.

[0053] Nutrition slow-release magnetic filler 6 is made of the following raw materials in parts by weight: 65 parts of polymethyl methacrylate, 10 parts of hydroxyethyl cellulose, 4 parts of chitosan, 5 parts of aluminum oxide, 4 parts of starch, oxidized 5 parts of iron nanoparticles, 2 parts of vinyltriethoxysilane.

[0054] The preparation method of the nutritional slow-release magnetic filler 6 is as follows:

[0055] (1) Weigh each raw material according to parts by weight;

[0056] (2) Disperse hydroxyethyl cellulose in deionized water, then add polymethyl methacrylate, and continue stirring for 45 minutes; the quality of deionized water is 5 times that of hydroxyethyl cellulose;

[0057] (3) Add chitosan, alumina, starch, and iron oxide nanoparticles to the product obtained in step (2) in sequence, stir for 45 minutes, then add vinyltriethoxysilane, stir and mix, and let stan...

Embodiment 3

[0066] The structure and connection mode of the reactor are the same as those in Example 1.

[0067] Nutrition slow-release magnetic filler 6 is made of the following raw materials in parts by weight: 70 parts of polymethyl methacrylate, 12 parts of hydroxyethyl cellulose, 5 parts of chitosan, 6 parts of aluminum oxide, 6 parts of starch, oxidized 6 parts of iron nanoparticles, 3 parts of vinyltriethoxysilane.

[0068] The preparation method of the nutritional slow-release magnetic filler 6 is as follows:

[0069] (1) Weigh each raw material according to parts by weight;

[0070] (2) Disperse hydroxyethyl cellulose in deionized water, then add polymethyl methacrylate, and continue stirring for 60 min; wherein, the mass of deionized water is 5 times the mass of hydroxyethyl cellulose;

[0071] (3) Add chitosan, alumina, starch, and iron oxide nanoparticles to the product obtained in step (2) in sequence, stir for 60 minutes, then add vinyltriethoxysilane, stir and mix, and le...

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Abstract

The invention discloses a moving bed biofilm oxidation-ultrafiltration combined remediation method for landscape water. The method involves the following three parts: a moving bed biofilm oxidation system, an ultrafiltration treatment system and an online monitoring system. A moving bed biofilm reactor is internally equipped with nutrient slow-release magnetic filler, and the bottom is communicated with an air blower and an aeration pipe. An ultrafiltration reactor is internally equipped with several layers of modified PVC ultrafiltration membranes, one side of the ultrafiltration reactor farfrom a water inlet is equipped with a water outlet pipe, which is communicated with a reflux pipeline, the reflux pipeline is equipped with a backwash valve and a backwash pump, and the bottom of theultrafiltration reactor is equipped with a sewage drain port. The online monitoring system includes 2 multiparameter water quality detectors that are respectively installed on the water inlet pipe andthe water outlet pipe. The method provided by the invention has the characteristics of high purification effect and stable effluent quality, achieves real-time understanding of the remediation process, and overcomes the problems of slow biofilm growth rate, easy filter membrane pollution and the like in single treatment system.

Description

technical field [0001] The invention belongs to the technical field of landscape water treatment, and in particular relates to a moving bed biofilm oxidation-ultrafiltration combined restoration method for landscape water. Background technique [0002] As more and more landscape water elements are integrated into the construction of urban public places, various styles of landscape water bodies such as artificial lakes and fountain waterscapes have improved the aesthetics and comfort of the living environment. Infiltration, precipitation and other conditions can improve the natural climate, slow down the urban heat island effect, and provide growth bases for plants while enriching the diversity of urban landscapes. [0003] However, at present, the landscape water body is seriously polluted, the eutrophication problem is intensified, and the function of the stable and orderly evolution of the ecosystem is constantly being lost, which affects human health and the sustainable d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10C02F1/44B01D71/48B01D65/02
CPCB01D65/02B01D71/48B01D2321/04C02F1/444C02F3/105Y02W10/10
Inventor 洪晓曦游海龙冯子文涂琴袁俊靳亚慧
Owner SHENGSHI LANDSCAPE GRP CO LTD
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