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Device and method for producing electrical energy and biogas fertilizer by using livestock and poultry manure and crop stalks

A technology of crop stalks and livestock and poultry manure, which is applied in the direction of fertilization equipment, preparation and application of organic fertilizers, etc., can solve the problems of secondary pollution of reaction waste, general power generation performance, cumbersome operation, etc., and achieve low production cost and wide application Application potential, good effect of treatment

Active Publication Date: 2014-11-19
QINGDAO AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At this stage, there are many technologies for the recycling of livestock manure and crop straw, mainly focusing on power generation after fermentation and co-production of electric fertilizer. secondary pollution

Method used

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  • Device and method for producing electrical energy and biogas fertilizer by using livestock and poultry manure and crop stalks
  • Device and method for producing electrical energy and biogas fertilizer by using livestock and poultry manure and crop stalks

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A device for obtaining electric energy and biogas manure by using livestock and poultry manure and crop stalks, including a tank body 3, which is divided into an anode chamber 1 and a cathode chamber 2 through a partition 7, and a cathode material 6 is arranged in the cathode chamber 2, and the An anode material 5 is arranged in the anode chamber 1, and the cathode material 6 and the anode material 5 are connected to an external circuit load 9 through a wire 10, and a polyethylene heterogeneous cation exchange membrane 4 is arranged on the separator 7 near the bottom of the tank; The acclimated electrogenic microbial flora, treated livestock and poultry manure and crop straw are evenly stirred and then added to the anode chamber 1 as the anode chamber liquid in an intermittent or continuous manner, and water is added to the cathode chamber 2 as the cathode chamber liquid; at a temperature of 25 Under the condition of ~37°C, after constant temperature cultivation for 12-3...

Embodiment 2

[0039] Crush the crop straws to <1mm, and soak them in appropriate distilled water for 17 hours; cut the polyethylene heterogeneous cation exchange membrane into 1.5cm×1cm, soak it in distilled water for 24 hours, and fix it between the anode chamber and the cathode chamber;

[0040] Prepare a double-chamber reaction device of 20cm * 15cm * 10cm; the size of the anode chamber and the cathode chamber are respectively 10.3cm * 3.5cm * 10cm and 3.2cm * 3.5cm * 10cm; used straw is corn stalk, and its moisture content is 6.95%, The carbon, nitrogen, phosphorus and potassium contents are 50.82%, 0.23%, 0.15%, and 1.96% respectively; the livestock and poultry manure used is cow dung with a moisture content of 82.25%, and the carbon, nitrogen, phosphorus, and potassium contents are 9.01%, 9.01%, and 1.96%, respectively. 0.65%, 0.75%, 1.00%; add 20.0g and 1.0g of the above cow dung and corn stalks to the anode chamber, add 20ml of biogas slurry to inoculate microorganisms, add water and...

Embodiment 3

[0045] Crush the crop straws to <1mm, and soak them in appropriate distilled water for 15 hours; cut the polyethylene heterogeneous cation exchange membrane into 5cm×9cm, soak it in distilled water for 24 hours, and then fix it between the anode chamber and the cathode chamber;

[0046] A double-chamber reaction device of 30cm×20cm×20cm was prepared; the size of the anode chamber and the cathode chamber were 20cm×20cm×20cm and 10cm×20cm×20cm respectively; the stalk used was corn stalk, and its moisture content was 7.0%. The phosphorus and potassium contents are 46.75%, 0.48%, 0.85%, and 0.37% respectively; the livestock and poultry manure used is cow dung with a water content of 85.6%, and the carbon, nitrogen, phosphorus, and potassium contents are 9.35%, 0.59%, and 0.83% respectively. %, 0.96%; add 240g of cow dung and 25g of corn stalks to the anode chamber, add 180ml of biogas slurry to inoculate microorganisms, add water and stir evenly to adjust the solid content to 5%; a...

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Abstract

The invention discloses a device for producing electrical energy and biogas fertilizer by using livestock and poultry manure and crop stalks. The device comprises a tank body which is divided into an anode chamber and a cathode chamber by using a separation plate. A cathode material is arranged in the cathode chamber, and an anode material is arranged in the anode chamber. The cathode material and the anode material are connected with an external circuit load through a conducting wire. A polyethylene heterophasic cation exchange membrane is arranged on the separation plate at a position close to the bottom of the tank. An electricity-producing microbial flora acclimated from biogas slurry, treated livestock and poultry manure and crop stalks are uniformly mixed; the mixture is continuously or intermittently added into the anode chamber, and is used as anode chamber liquid; water is added into the cathode chamber and is used as cathode chamber liquid; under a temperature of 25-37 DEG C, constant-temperature cultivation is carried out for 12-36h, and an electricity-producing effect occurs. The invention also discloses an application method of the device. The device provided by the invention can operate under normal temperature, and has the advantages of good electricity-producing performance, low production cost, simple operation, and pollution-free process. The device and the method have good application potential in local areas lacking electric power infrastructures.

Description

technical field [0001] The invention relates to a device and a method for obtaining electric energy and marsh manure by using livestock manure and crop stalks, and belongs to the field of solid waste treatment and resource utilization. Background technique [0002] With the depletion of resources and the deterioration of the environment, people gradually realize that solid waste is a "misplaced resource", and various countries are working hard to develop new technologies. While recycling solid waste, many studies focus on obtaining energy from organic waste, which can not only solve environmental problems, but also ease the pressure on energy demand. [0003] At present, my country's air-dried plant straw is nearly 900 million tons, becoming the fourth largest energy source after coal, oil and natural gas. With the rapid development of animal husbandry, feces pollution has become a major problem: According to statistics, a dairy cow produces more than 7 tons of feces every ...

Claims

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Application Information

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IPC IPC(8): C05F17/02H01M8/16
CPCY02E50/30Y02E60/50Y02P70/50Y02W30/40
Inventor 辛言君王成显张艺臻张小梅陈清华潘月庆
Owner QINGDAO AGRI UNIV
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