Biogas slurry ecological purification device and biogas slurry ecological purification method

A technology for ecological purification and biogas slurry, which is applied in chemical instruments and methods, biological water/sewage treatment, energy and wastewater treatment, etc. It can solve problems such as the dilution concentration that has not yet been retrieved, and achieve good results.

Inactive Publication Date: 2009-12-16
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has not been retrieved to comprehensively consider the dilution concentration of biogas slurry, flow rate, treatment days, the selective collocation of organisms, the planting density of each organism and conduct a single-factor comparative test, so as to propose ecological comprehensive purification of biogas slurry and circular purification of biogas slurry related reports

Method used

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  • Biogas slurry ecological purification device and biogas slurry ecological purification method
  • Biogas slurry ecological purification device and biogas slurry ecological purification method
  • Biogas slurry ecological purification device and biogas slurry ecological purification method

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Embodiment Construction

[0018] The present invention is described in detail below in conjunction with embodiment and with reference to accompanying drawing:

[0019] refer to figure 1 , the volume of regulating tank 1 is the largest, and the volumes of the other four tanks are similar or equal. The "single tank capacity base of the four tanks is 7 to 8 tons", which means that the capacity of each single tank is 7 to 8 tons or 14 to 8 tons. 16 tons or 21-24 tons or 70-80 tons or 700-800 tons, etc., in short, it is 7n-8n tons. If it is used for small or pilot laboratory tests, it can be 0.7-0.8 tons, and the rest can be analogized. Similarly, the "flow base is 140-230 liters / hour" can be 14-23 liters / hour or 280-460 liters / hour or 1400-2300 liters / hour, etc., in short, it is 140n-230n liters / hour, n are multiples. It should be emphasized that the multiple n of the expansion or reduction of the capacity of each tank and the multiple n of the increase and decrease of the flow rate must be the same valu...

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Abstract

The invention discloses a biogas slurry ecological purification device, which comprises an adjusting tank (1), a facultative tank (2), an aerobic tank (3), a fish culturing tank (4) and a clarifying tank (5), wherein all tanks have a liquid outlet pipe and a liquid inlet pipe; the liquid outlet pipe of a tank is communicated with the liquid inlet pipe of a next tank and a control valve (8) is arranged between the liquid outlet pipe of the tank and the liquid inlet pipe of the next tank; effluent of the clarifying tank (5) passes through a three-way pipe (6) and a control valve of the three-way pipe (6) to be connected with a discharge pipe and a return pipe (7) communicated with the adjusting tank (1); the liquid outlet pipe of the adjusting tank is provided with a flow meter (14); the return pipe (7) is provided with a circulating water pump (11); and the aerobic tank (3) is provided with an aeration device (12) and a filler. Biogas slurry purification by the device is realized by culturing water hyacinth in the facultative tank (2), algal-bacteria, plankton and mussel in the aerobic tank (3) and fish in the fish culturing tank (4), using the algal-bacteria and the plankton as fish baits, and clarifying the effluent till the effluent meets national standards for integrated wastewater discharge. The device has the advantages of high speed, high efficiency, circular purification and diversified operations.

Description

technical field [0001] The invention relates to the field of sewage treatment, and relates to a device and method for ecologically comprehensive purification of biogas slurry. Background technique [0002] Biogas slurry is the residual liquid of domestic sewage and livestock and poultry breeding sewage after anaerobic fermentation of biogas tanks to produce gas. It contains a variety of organic and inorganic nutrients. It is useful as supplementary feed for livestock, fish and shrimp, and can be directly used as liquid fertilizer in the field. Yes, it is concentrated and sterilized as liquid fertilizer. In today's global shortage of fresh water resources, it is undoubtedly of great practical significance to recycle the water after biogas slurry purification. Utilize organisms such as aquatic plants, microorganisms to purify sewage, and it has become a known public technology, such as the bamboo raft type ecological floating bed of CN101274802 to plant yellow calamus and cel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00
CPCY02W10/37
Inventor 陈斌张妙仙单胜道
Owner ZHEJIANG FORESTRY UNIVERSITY
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