Composite filler for biological filter and its biological deodorization method and device

A biofilter and composite packing technology, applied in separation methods, chemical instruments and methods, and separation of dispersed particles, to achieve the effects of strong deodorization ability, easy access to raw materials, and saving construction and operating costs

Active Publication Date: 2015-10-07
CISDI ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For fully enclosed composting technology, the concentration of odor, gas humidity and its fluctuation range are completely different from open composting, and the process of humidifying biological filter for open composting is no longer applicable

Method used

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  • Composite filler for biological filter and its biological deodorization method and device

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, preferred embodiments of the present invention are described in detail below. The experimental methods for which specific conditions are not indicated in the preferred embodiments are usually carried out according to conventional conditions, or according to the conditions suggested by the manufacturer.

[0024] Closed composting reactors such as figure 1 As shown, it includes a blower 6, a closed composting reactor 1 and a biofilter 5, the blower 6 is connected with the closed composting reactor 1, aerates the closed composting reactor 1, provides oxygen for the composting reaction, and simultaneously reduces the compost temperature and take away the water vapor in the compost; then the closed compost reactor 1 is connected with the biofilter 5, and the closed compost reactor 1 passes the malodorous gas produced by the anaerobic microorganisms in the compost into the biofilt...

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Abstract

The invention relates to a composite filler of a biological filter, as well as a biological deodorization method and device with the composite filler. The composite filler includes a first filler layer and a second filler layer above the first filler layer, wherein the first filler layer is made of a porous material; and the second filler layer is made from 60%-80% of fully fermented compost, 10%-30% of wood dust or straws and 5%-10% of zeolite or porous ceramsite according to percent by volume, which are uniformly mixed. The composite filler can completely decompose malodorous gas generated by the closed compost, and is placed in the biological filter for deodorization according to the following steps of: aerating a closed compost reactor by a blower, fermenting in the closed compost reactor, introducing the gas generated during the fermentation into the biological filter via a gas inlet through a pipeline, performing biological deodorization on the gas by the composite filler, and discharging the gas from the top of the biological filter. According to the invention, the deodorization effect is good, air is not required to be introduced additionally, and a humidifying device is not needed, so that the running cost is low, and the popularization of a compost technology is facilitated.

Description

technical field [0001] The invention belongs to the field of compost deodorization, in particular to a composite filler for a biological filter, and also relates to a method and a device for biological deodorization using the composite filler. Background technique [0002] With the development of my country's social economy and the improvement of urbanization level, the discharge of urban sewage is increasing, and the treatment rate of sewage is increasing year by year. Sludge is the main solid waste in the process of urban sewage treatment. The problem of sludge treatment and disposal has been solved. become an important problem in the process of sewage treatment. Composting, as one of the most economical, environmentally friendly and by-product utilization technologies, has become a hot spot of research and attention. In addition, a large amount of livestock and poultry manure produced every year in our country is also mostly treated with composting technology. However, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/85B01D53/52B01D53/58B01D53/48B01D53/54
CPCY02A50/20
Inventor 沈倩青罗富金杨世辉苏定江
Owner CISDI ENG CO LTD
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