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Food waste treatment process

A technology of kitchen waste and treatment process, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, organic fertilizer, etc., can solve the problems of high investment cost and difficulty in tail gas treatment, and achieve the effect of reducing COD

Active Publication Date: 2017-05-24
SHENZHEN LONGJISHUN IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This treatment method can achieve energy recovery and utilization, but the investment cost is high and the tail gas treatment is difficult

Method used

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Embodiment Construction

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0048] The treatment system for treating kitchen waste in this embodiment includes a pretreatment system, a first filter system and a second filter system connected in sequence.

[0049] Wherein, the pre-treatment system includes a rolling crushing device, a demulsification grid device and an oil-water separation device connected in sequence, and the oil-water separation device is connected with the first filtration system.

[0050] The first filtration system comprises a first circulation tank, a filter and a first filtration membrane assembly capable of cross-flow filtration connected in sequence, the input end of the first circulation tank is connected with the output end of the pretreatment system, and the first filtration membrane assembly The output end is connected to the input end of the second filtration system; the first filtration s...

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Abstract

The invention relates to a kitchen waste treatment process. The kitchen waste treatment process comprises the following steps: (1) carrying out pretreatment for dividing the kitchen waste into a solid-phase material, an oil-phase material and a water-phase material through a pretreatment system; (2) carrying out primary filtering treatment for introducing the water-phase material into a first filtering system, wherein the first filtering system comprises a first filtering film component, the water-phase material is filtered by a cross flow filtration manner through the first filtering film component, the obtained filtrate is primary treatment water, and the trapped molecular weight of the first filtering film is 250000; and (3) carrying out secondary filtering treatment for introducing the primary treatment water into a second filtering system, wherein the second filtering system comprises a second filtering film component, the primary treatment water is filtered by a roll type filtering manner through the second filtering film component, the obtained filtrate is dischargeable water, and the trapped molecular weight of the second filtering film is 100. The treatment process is capable of effectively removing pollutants in the kitchen waste; the obtained water is clear and transparent and meets the discharge standard; in addition, the water production rate of the treatment process reaches over 85 percent.

Description

technical field [0001] The invention relates to a domestic waste treatment process, in particular to a kitchen waste treatment process. Background technique [0002] Kitchen waste, also known as slop and kitchen waste, refers to the food waste produced by restaurants, hotels, various restaurants, government agencies, enterprises, institutions, schools and other public canteens, residents' families, farmers' markets, and food processing enterprises. And food waste, which is the organic waste part of municipal solid waste. Food waste will deteriorate after being piled up. It not only pollutes the environment with rancid smell, waste water, waste oil, etc., but also breeds flies, mosquitoes, cockroaches, mice and other pests. Food waste has become a headache for urban public hazards. [0003] After the food waste is decomposed, it will produce a large amount of harmful substances, including various bacteria that are harmful to humans and animals. Therefore, food waste cannot ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00B09B5/00C02F9/02C05F9/02C05F9/04
CPCY02A40/20
Inventor 廖保锋林政光罗海燕赵书英钟美梅肖笑
Owner SHENZHEN LONGJISHUN IND DEV
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