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Liquid fertilizer treatment process for livestock manure

A treatment process and biochemical treatment technology, applied in animal husbandry wastewater treatment, oxidized water/sewage treatment, liquid fertilizer and other directions, can solve the problems of long treatment time and cumbersome treatment steps, so as to reduce treatment costs, simplify the process and improve efficiency. Effect

Active Publication Date: 2020-05-19
浙江亲水园生物科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the defects of long processing time and cumbersome processing steps in the process of using livestock manure to prepare liquid fertilizer in the prior art, the method of the present invention uses the biochemical sludge produced after aerobic biochemical treatment to be regularly introduced into the cultivation tank, and the biochemical sludge is used to The dead bacteria in the mud are used as nutrients for aerobic microorganisms to cultivate aerobic microorganisms, and the effluent from the cultivation tank can be used for aerobic biochemical treatment; after the system runs stably, the effluent from the cultivation tank can be used as microbial liquid fertilizer. The method of the invention has a simple process, and can not only discharge the sewage up to the standard, but also produce liquid fertilizer with high content of probiotics

Method used

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  • Liquid fertilizer treatment process for livestock manure
  • Liquid fertilizer treatment process for livestock manure
  • Liquid fertilizer treatment process for livestock manure

Examples

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Embodiment 1

[0040] The processing object of this embodiment is pig manure produced by a large pig farm in Tingfeng, Yongzhou, Hunan Province, and the process roadmap is as follows figure 1 As shown, in the process, an aerobic microorganism cultivation pond connected with the aerobic biochemical treatment pond is set, and the volume of the aerobic microorganism cultivation pond is 100 cubic meters, and the number of QS1 aerobic bacteria initially cultivated in the aerobic microorganism cultivation pond is greater than 10 7 , the method includes the following steps:

[0041] a) Carry out solid-liquid separation of pig feces and urine, import the liquid separation into the raw water tank, add facultative anaerobic bacteria-Enterococcus faecium EC-11 bacterial powder in the raw water tank, and the bacterial strain of described Enterococcus faecium EC-11 is Enterococcus faecium, the strain is preserved in the General Microbiology Center of China Committee for the Collection of Microbial Strai...

Embodiment 2

[0068] The processing object of the present embodiment and the bacterial strain used are identical with embodiment 1, and described technique comprises the following steps:

[0069] a) Carry out solid-liquid separation of pig manure and urine, import the liquid separation into the raw water tank, add facultative anaerobic bacteria-Enterococcus faecium EC-11 bacterial powder into the raw water tank,

[0070] b) The effluent of the raw water pool flows into the black film biogas digester for anaerobic fermentation treatment, and the treated sewage enters the aerobic biochemical treatment tank for treatment; the addition of Enterococcus faecium EC-11 bacterial powder in the step a) is not less than 1.5 grams per cubic meter, calculated when the number of live bacteria of Enterococcus faecium EC-11 in the raw water pool is not less than 750,000 cfu / g.

[0071] c) Arrange aerobic microorganism culture pool, and add Bacillus subtilis QS1 bacterium powder in the culture pond, the add...

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Abstract

The invention discloses a liquid fertilizer treatment process for livestock excrement and urine, and belongs to the field of excrement and urine treatment. The liquid fertilizer treatment process comprises the following treatment steps of: a) performing solid-liquid separation on the livestock excrement and urine, performing anaerobic fermentation treatment on liquid isolate, performing aerobic aeration biochemical treatment on the treated sewage by using aerobic microorganisms, and performing subsequent treatment to achieve up-to-standard discharge; and b) achieving stable system operation, culturing aerobic microorganisms in the step a) by utilizing sludge generated by aerobic aeration biochemical treatment, preparing a culture product into a liquid fertilizer, and enabling the culture product to flow back to an aerobic biochemical pool for aerobic aeration biochemical treatment. The method disclosed by the invention is simple in process, the sewage can be discharged after reaching the standard, the microbial composite bacterial fertilizer with high probiotic content can be produced, meanwhile, the treatment cost of biochemical sludge is reduced, and the method is beneficial to popularization.

Description

technical field [0001] The invention belongs to the field of excrement and urine treatment, and in particular relates to a liquid fertilization treatment process of livestock excrement and urine. Background technique [0002] With the development of animal husbandry in our country, the large-scale and intensive development of animal husbandry has become an inevitable trend. However, the feces and urine excreta and wastewater of aquaculture contain a large amount of organic matter, nitrogen, phosphorus, suspended matter and pathogenic bacteria and produce The stench has a great impact on the quality of the environment. The unreasonable discharge of a large number of concentrated feces and sewage will cause more and more serious environmental pollution problems. Therefore, it is particularly important for the treatment of manure in the breeding industry. In addition to containing liquid nutrients N, P and K, it also contains many amino acids, vitamins, enzymes and amino acid d...

Claims

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Application Information

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IPC IPC(8): C02F9/14C05F3/00C05F17/20C05F17/50C05G5/20C02F103/20C02F101/16
CPCC02F9/00C05F3/00C02F2103/20C02F3/30C02F1/78C02F2101/16Y02A40/20Y02W30/40
Inventor 丁庆
Owner 浙江亲水园生物科技有限公司
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