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Discharging plasma co-disposal method for sludge and kitchen waste

A kitchen waste and plasma technology, applied in waste fuel, fermentation and other directions, can solve the problems of interfering with transportation or defense functions, prone to degradation lag period, unfavorable methanation stage, etc., to promote the anaerobic fermentation and digestion process, Promotes efficient cracking, beneficial effect on activity

Inactive Publication Date: 2016-05-25
WUHAN JINXING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This substance will be adsorbed on the cell wall or cell membrane of methanogens, interfering with its transport or defense functions. The degradation of long-chain fatty acids is mainly through β-oxidation to produce acetate and hydrogen, and the higher the content of long-chain fatty acids, the faster the degradation rate. Slow, prone to slow degradation period, which is not conducive to the progress of the methanation stage, and the enrichment of volatile fatty acids produced in the intermediate process will also inhibit the methanogenic bacteria

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 10 tons of municipal sludge with a water content of 95% and 10 tons of food waste with a water content of 80%.

[0024] Material type

[0025] After the plasma treatment, the gas production rate in the whole anaerobic fermentation process is 0.55-0.65L / gVS, and the methane content accounts for 65%-75%.

Embodiment 2

[0027] 5 tons of municipal sludge with a moisture content of 90% and 15 tons of food waste with a moisture content of 85%.

[0028] Material type

[0029] After plasma treatment, the gas production rate in the whole anaerobic fermentation process is 0.56-0.62L / gVS, and the methane content accounts for 67%-74%.

Embodiment 3

[0031] 15 tons of municipal sludge with a moisture content of 99% and 5 tons of food waste with a moisture content of 80%.

[0032] Material type

[0033] After plasma treatment, the gas production rate in the whole anaerobic fermentation process is 0.54-0.60L / gVS, and the methane content accounts for 65%-77%.

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PUM

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Abstract

The invention belongs to the technical field of city solid waste treatment, and particularly relates to a discharging plasma co-disposal method for sludge and kitchen waste. According to the method, the discharging plasma technology of sludge and kitchen waste is used for accelerating damage of organic matter in sludge and kitchen waste to achieve the purpose of accelerating disposal of the two kinds of organic matter waste. Hydroxyl radicals, oxygen atoms, ozone and other active particles generated by discharging plasma can effectively damage the floccule structure, especially extracellular polymeric substances, of sludge, and protein, polysaccharide and other matter can be released; on the other hand, grease and fatty acid in kitchen waste are further damaged by the active particles, and sludge and kitchen waste can be mixed more sufficiently. The treated mixture is beneficial to activity of methanogens and acceleration of the anaerobic fermentation digestion process.

Description

technical field [0001] The invention belongs to the technical field of urban solid waste treatment, and in particular relates to a discharge plasma co-disposal method of sludge and kitchen waste. Background technique [0002] With the improvement of living standards, the amount of kitchen waste generated by the majority of families, canteens, and catering industries is huge. The components of kitchen waste are complex. The solid matter is mainly composed of leftovers, melon and fruit peels, rotten vegetables, animal and vegetable oils, fish bones and other organic matter. The swill mainly includes: waste water, animal and vegetable oils, various seasonings, food additives, Carbohydrates, inorganic salts, etc. Food waste has the characteristics of high water content, high organic matter content, and high oil content. [0003] Due to the high water content and organic matter content of kitchen waste, it is easy to rot and stink and breed mosquitoes and flies in a short perio...

Claims

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Application Information

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IPC IPC(8): C12P5/02
CPCC12P5/023Y02E50/30
Inventor 时亚飞贺敬星邵婷
Owner WUHAN JINXING TECH CO LTD
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