Oxygen-enriched biological treatment method and system of solid liquid waste

A biological treatment and waste technology, applied in the field of solid and liquid waste treatment methods and treatment systems, can solve the problems of difficult solid and liquid waste treatment, secondary pollution, high treatment costs, etc., shorten the fermentation cycle and reduce operation The effect of cost and long fermentation period

Inactive Publication Date: 2011-09-07
绿色家园(北京)环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The purpose of the present invention is to provide an oxygen-enriched biological treatment method and system for solid and liquid w

Method used

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  • Oxygen-enriched biological treatment method and system of solid liquid waste
  • Oxygen-enriched biological treatment method and system of solid liquid waste
  • Oxygen-enriched biological treatment method and system of solid liquid waste

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Effect test

Embodiment 1

[0048] Embodiment one, see figure 1 As shown, the excess sludge produced by a certain urban sewage treatment plant has a water content of 85-88%, a pH of 7.3, and an organic matter content of more than 65%.

[0049] The steps of the oxygen-enriched biological treatment method for solid-liquid waste are as follows:

[0050] Step 1, mixing solid-liquid waste, livestock manure and dry admixture at a mass ratio of 7:1:2, and adding 0.2% mineral admixture of dry admixture weight for mixing;

[0051] Step 2, trough-type bio-oxygen-enriched fermentation, transport the solid-liquid waste mixture to the fermentation tank of the fermentation workshop, and fill the mixed gas with an oxygen content > 40% during the fermentation process of the material to rapidly heat up the material for full well-being Oxygen fermentation, and during the material fermentation process, the material is always in an oxygen-enriched state through power mechanical stirring, the fermentation temperature is 50-...

Embodiment 2

[0058] Embodiment two, see figure 1 As shown, the water content of the undersize produced by sorting urban domestic waste is 80-85%. The steps of this oxygen-enriched biological treatment method for solid and liquid waste are as follows:

[0059] Step 1: Mix solid-liquid waste, livestock and poultry manure and dry admixture at a mass ratio of 8:1:1, and add mineral admixture to mix evenly to form a solid-liquid waste mixture. The amount of mineral admixture added is 1% by weight of dry blend;

[0060] Step 2, trough-type bio-oxygen-enriched fermentation, transport the solid-liquid waste mixture to the fermentation tank of the fermentation workshop, and fill the mixed gas with an oxygen content > 40% during the fermentation process of the material to rapidly heat up the material for full well-being Oxygen fermentation, and during the material fermentation process, the material is always in an oxygen-enriched state through power mechanical stirring, the fermentation temperature...

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Abstract

The invention relates to an oxygen-enriched biological treatment method and an oxygen-enriched biological treatment system of solid liquid waste. The method comprises the following steps of: 1, mixing the solid liquid waste, livestock and poultry culture excrement and a dry doped material according to the mass ratio of the solid liquid waste to the livestock and poultry culture excrement to the dry doped material of 8:1:1 to 7:1:2, and adding a mineral doped material in an amount which is 0.1 to 5 percent of the weight of the dry doped material; 2, performing groove type biological oxygen-enriched fermentation at the temperature of between 50 and 70 DEG C for 4 to 8 days, so that the water content of the materials is reduced to below 55 percent through fermentation; 3, performing windrow type biological fermentation for 4 to 8 days until the water content is reduced to below 30 percent; and 4, mixing and packaging the materials. By the method and the system, the fermentation process is in the oxygen-enriched state all the time, so the fermentation speed is increased, occupied area and operating cost are reduced, and the problem of secondary pollution of urban solid liquid waste is solved. The method and the system are applicable to treatment of the solid liquid waste such as sludge generated by urban sewage treatment plants, household waste, livestock and poultry culture excrement, crop cultivation and garden solid waste and the like.

Description

technical field [0001] The invention belongs to the technical field of agricultural animal husbandry and environmental protection, and in particular relates to a treatment method and system for solid and liquid waste. Background technique [0002] At present, the commonly used solid and liquid waste treatment methods at home and abroad are as follows: [0003] 1. Sanitary landfill [0004] Sanitary landfill is a way to choose a reasonable storage site, and carry out waste disposal through measures such as waterproofing, leakage, and re-soiling. It is widely used in many countries in the world. More than 80% of the garbage in our country adopts sanitary landfill, which has the advantages of less investment, low treatment cost, large treatment capacity and easy operation. Its disadvantage is that it occupies a large area, and with the continuous increase of human domestic waste, its occupied area will also increase accordingly. Leakage may pollute groundwater and cause seco...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05F17/00
CPCY02W30/40
Inventor 崔维龙祎锟
Owner 绿色家园(北京)环保科技有限公司
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