Sludge reduction method adopting combination of high-purity pure oxygen and microorganisms for treatment

A technology of microbial treatment and sludge reduction, applied in the direction of biological sludge treatment, etc., can solve problems such as secondary pollution, achieve the effect of small footprint, significant deodorization effect, and easy mobile installation

Inactive Publication Date: 2020-11-27
北京赛富威环境工程技术有限公司
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Problems solved by technology

The invention greatly reduces the operating cost of the reduction process through the use of high-purity pure oxygen; greatly improves the efficiency of the treatment plant through microbial technology treatment; avoids the secondary pollution problem in the sludge reduction process; solves the sludge reduction process Efficiency and investment cost issues

Method used

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  • Sludge reduction method adopting combination of high-purity pure oxygen and microorganisms for treatment
  • Sludge reduction method adopting combination of high-purity pure oxygen and microorganisms for treatment
  • Sludge reduction method adopting combination of high-purity pure oxygen and microorganisms for treatment

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Embodiment

[0046] Such as figure 1 As shown, Embodiment 1 of the present invention provides a method for reducing sludge volume using high-purity pure oxygen combined with microbial treatment, the method comprising:

[0047] Step 1. The pump conveying equipment adopts high-pressure capillary technology to completely dissolve pure oxygen with an oxygen concentration greater than 99% into the sludge and wastewater mixture in molecular form, so as to realize air-bubble-free conveying and generate large-flow super-dissolved oxygen SSO 2 .

[0048] This step results in an oxygen transfer efficiency as high as 85-96%. Completely dissolve pure oxygen into water in the form of molecules to generate large flow of super-dissolved oxygen (SSO2), so that oxygen can reach an ultra-high concentration of 400mg / L or even higher in water, and can achieve bubble-free transmission and long-term retention.

[0049] For example: our chemical wastewater biochemical treatment plant produces about 10 tons of ...

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Abstract

The invention provides a sludge reduction method adopting a combination of high-purity pure oxygen and microorganisms for treatment. The method comprises the following steps: completely dissolving pure oxygen with an oxygen concentration of more than 99% into a sludge-wastewater mixed solution in a molecular form via pump conveying equipment by adopting a high-pressure capillary technology so as to realize bubble-free conveying and generate high-flow super-dissolved oxygen SSO2; and under the action of ultra-dissolved oxygen, degrading organic substances in the sludge-wastewater mixed solutionby utilizing aerobic microorganisms, wherein microorganism sources comprise microorganisms generated by themselves in the sludge-wastewater mixed solution and added microorganism strains. According to the method disclosed by the invention, by adopting a combined a technology of high-purity pure oxygen and microorganisms, an organic matrix in the sludge is reduced and the residual sludge yield ofa biochemical system is greatly reduced, so sludge reduction is truly realized; and the method overcomes the problems of low sludge reduction efficiency, high operation cost and high investment, trulyrealizes the source reduction of the sludge and also overcomes the technical problem of secondary pollution in the process of sludge reduction.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a sludge weight reduction method using high-purity pure oxygen combined with microbial treatment. Background technique [0002] Since the completion of the first sewage treatment plant sludge digester in China at the end of last century, due to the needs of environmental protection and urban water use, the number of sludge digesters has increased dramatically. However, the technical level of the sludge digestion and treatment system built in China is still relatively low, which requires us to pay more attention to its realization in the future practical work. Seeking more efficient treatment processes or technologies. [0003] 1 Status quo of sludge treatment and disposal technology in my country [0004] 1.1 Landfill disposal [0005] For the sludge to be landfilled, use high-dryness centrifugal dehydration to reduce its water content to about 65%. At this time, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02
CPCC02F11/02
Inventor 舒孝喜温捷
Owner 北京赛富威环境工程技术有限公司
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