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Excrement centralized processing method

A technology for centralized treatment and excrement, which is applied in sludge treatment, chemical instruments and methods, and biological organic part treatment, etc., can solve problems such as difficulty in urban excrement treatment, and achieve the effect of reducing load.

Active Publication Date: 2011-03-30
北京昊业怡生科技有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the invention is to solve the difficult problem of existing urban excrement treatment

Method used

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Embodiment Construction

[0032] Such as figure 1 As shown, the method for centralized treatment of feces of the present invention adopts the following steps:

[0033] (1) Solid-liquid separation

[0034] The fecal sewage enters the fecal solid-liquid separation system through the fecal discharge port, and the processing capacity of the solid-liquid separation system is 1.5-2.5m 3 / min, impact acceptance capacity 3m 3 / min. Solids with a particle size of more than 10mm are removed from the feces and sundries, the solid content in the filtrate after the treatment is less than 5%, and the water content of the separated solids is between 45% and 70%. The separated solid waste slag is transported in an airtight manner, and transported to the landfill for disposal in an airtight manner. The filtrate enters the first conditioning tank, and the first conditioning tank mainly plays the role of homogenization and temporary storage in the processing system, in preparation for entering the next processing unit for p...

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Abstract

The invention relates to an excrement centralized processing method, comprising the steps of solid-liquid separation, flocculation water removing, aerobic compost treatment, anaerobic sewage treatment, facultative anaerobic sewage treatment, aerobic sewage treatment, membrane anaerobic reacting sewage treatment and odor treatment. Treated with the processing method of the invention, the urban night soil is 100% decontaminated, is 99.7% minimized and the excrement sludge is completely changed into resource.

Description

Technical field [0001] The invention relates to a process for treating urban feces, in particular to a process for the harmlessness, reduction and resource utilization of urban feces. Background technique [0002] With the acceleration of urbanization, excrement has increasingly become a problem for major cities. According to statistics in 2006 in Beijing alone, there were more than 16.5 million people. Calculated on the basis of 500g of feces per person per day, 8.25 million kg of feces are produced every day. The feces discharged per person per day contain 18.6 grams of nitrogen and 1.74 grams of phosphorus. It can pollute 10 tons of water, and 8.25 million kilograms of manure can pollute 8.25 million tons of water. The excrement cannot be allowed to pollute the water source, but the excrement directly enters the municipal pipe network and will put a huge pressure on the municipal sewage treatment system, causing the effluent to fail to meet the standard, and even the entire s...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/12C05F17/00C02F9/14C02F3/30C02F1/52C05F3/04
CPCY02A40/20Y02E50/30Y02W30/40
Inventor 于景成田丹靳国良
Owner 北京昊业怡生科技有限公司