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Technique for treating sewage of aeration biofilter having function of reinforced deodorization

A biological aerated filter and sewage treatment technology, which is applied in the field of environmental pollution control and prevention, can solve the problems of low maintenance costs, unsuitable for rainfall, and heavy snowfall areas, so as to save floor area and investment, and reduce operation Maintenance workload, significant economic benefits

Inactive Publication Date: 2010-03-31
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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Problems solved by technology

The soil deodorization method is characterized by low maintenance costs, but it is not suitable for areas with heavy rainfall and snowfall

Method used

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  • Technique for treating sewage of aeration biofilter having function of reinforced deodorization
  • Technique for treating sewage of aeration biofilter having function of reinforced deodorization

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Embodiment Construction

[0016] 1) Filling of composite filler: Composite filler is composed of ceramsite (particle size 1.0-1.5mm), coarse-grained activated carbon (particle size> 1.0mm) and scrap iron chips, added according to the volume ratio of 1:0.2:0.15. The lower part of the filler layer is filled with ceramsite, and the top of the ceramsite is filled with uniformly mixed coarse granular activated carbon and iron filings. Before filling, the filler must be cleaned and screened according to the required particle size to ensure that the particle size of the filler is even.

[0017] 2) Domestication of deodorizing microorganisms. First, the remaining sludge and sewage from the urban sewage treatment plant are mixed in a ratio of 1:5, and then pumped into the inlet pipe 1 of the biological aerated filter device (as shown in Figure 1), and circulated for a period of time to make the aerated organisms A biofilm of a certain thickness is formed on the surface of the filler 4 in the filter tank. Then...

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Abstract

The invention sets up a novel technique for treating sewage of an aeration biofilter having the function of reinforced deodorization. The technique combines sewage treatment and deodorization treatment, under the prerequisite of up-to-standard discharge, and adopts a composite filler to replace the ceramsite filler of the aeration biofilter; after domestication, the aeration biofilter can have thefunction of bio-deodorization while treating sewage. The technique is implemented by filling the composite filler which is composed of ceramsite, coarse granule active carbon and iron scrap with thevolume ratio being 1:0.2:0.15 into the aeration biofilter; adopting reek to be treated to replace air to be as the aeration gas source of the aeration biofilter; and after domestication, generating high efficient deodorizing bacteria groups such as desulfurated and deaminized bacteria and the like, so as to realize treating sewage and deodorizing stink gas simultaneously in the aeration biofilter.The invention does not change the equipment parameters of the original sewage treatment system and is favorable for upgrading and modifying civil sewage and industrial sewage plants.

Description

Technical field [0001] The present invention establishes a new biological aerated filter sewage treatment process with enhanced deodorization function, uses the odor to be deodorized as the aeration gas source of the biological aerated filter, and adopts this process to treat sewage in normal At the same time, the biological deodorization of the odor is carried out. It belongs to the field of environmental pollution control and prevention. Background technique [0002] With the continuous improvement of my country's sewage treatment rate, in the process of sewage treatment, sludge treatment, etc., the odor pollution caused by a large amount of malodorous gas is becoming more and more serious. The gas composition of odor pollutants is complex, mainly including: hydrogen sulfide, ammonia, amine, etc. In the past, industrial sewage treatment or municipal sewage treatment often only paid attention to the discharge of sewage up to the standard, and did not effectively control t...

Claims

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Application Information

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IPC IPC(8): C02F3/12C02F1/70B01D53/84
CPCY02A50/20Y02W10/10
Inventor 江栋贾燕刘永邓志毅
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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