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Sludge fermentation process for pig raising wastewater

A wastewater sludge and fermentation process technology, which is applied in the field of swine wastewater sludge fermentation process, can solve the problems of slow hydrolysis and acidification, chemical pollution, high energy consumption, etc.

Pending Publication Date: 2021-07-06
江西清绿环保有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, in the anaerobic treatment of pig farm wastewater sludge, there are problems such as complex structure of sludge, slow hydrolysis and acidification speed, high energy consumption and serious chemical pollution

Method used

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  • Sludge fermentation process for pig raising wastewater
  • Sludge fermentation process for pig raising wastewater

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Embodiment

[0027] Such as Figure 1-Figure 2 As shown, the invention provides a kind of pig raising wastewater sludge fermentation process,

[0028] From left to right, it includes a sedimentation tank 1 and a fermentation tank 2. The upper side wall of the sedimentation tank 1 is provided with a feed pipe 3, and the feed pipe 3 can pass waste water sludge into the sedimentation tank 1. , the settling tank 1 can carry out sedimentation and stratification of wastewater sludge, the upper layer in the settling tank 1 is waste water, the lower layer is sludge, the lower end of the settling tank 1 and the lower end of the fermentation tank 2 pass through the feed pipe 4 connected, the feed pipe 4 can pass the lower sludge in the settling tank 1 into the fermenter 2, the settling tank 1 is provided with a waste water collection device, and the waste water collection device can transfer the The upper layer waste water in the settling tank 1 is discharged and collected;

[0029] The side wall ...

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Abstract

The invention discloses a sludge fermentation process for pig raising wastewater. A precipitation tank and a fermentation tank are sequentially included from left to right, a feeding pipe is arranged on one side wall of the upper end of the precipitation tank, the lower end of the precipitation tank is communicated with the lower end of the fermentation tank through a material guiding pipe, and a wastewater collecting device is arranged in the precipitation tank. The wastewater collecting device can discharge and collect upper-layer wastewater in the settling tank; and a material passing pipe is arranged on one side wall of the upper end in the fermentation tank, anaerobic sludge particles can be introduced into the material passing pipe, a stirring device is arranged on the fermentation tank, a carbon rod layer is arranged on the stirring device, and the carbon rod layer is electrically connected with an external power supply through a wire. The carbon rod layer is used as a conductor material and intervenes in electron transfer between anaerobic oxidation bacteria and methane bacteria, so that electrons generated by decomposing organic matters by geobacterium are directly utilized by methanogens, carbon dioxide is reduced into methane, the methane yield and the sludge decomposition speed are increased, the sludge treatment efficiency is improved, and the investment is saved.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a pig raising wastewater sludge fermentation process. Background technique [0002] Pig farm wastewater sludge is mainly composed of urine, residual feces, feed residue and flushing water. Some farms also include domestic wastewater generated during production. The former is the main part, of which flushing water accounts for the vast majority , due to the high concentration of organic matter in the pig industry wastewater sludge, and it contains a large amount of nitrogen, phosphorus, suspended solids, pathogenic bacteria and other components, if these pollutants are not properly treated, once they enter natural water bodies and farmland, they will cause severe environmental pollution; [0003] In the prior art, anaerobic methanogenesis is an effective way to treat organic waste. The anaerobic digestion of organic solid waste not only reduces the amount, but al...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F11/04C02F103/20
CPCC02F9/00C02F11/04C02F1/465C02F2001/46133C02F1/46104C02F3/30C02F1/66C02F1/5245C02F1/56C02F1/50C02F2103/20
Inventor 张玉张奉友李剑勤
Owner 江西清绿环保有限公司
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