Biogas slurry concentrate and engineering preparation method

A technology of concentrated liquid and biogas liquid, which is applied in the field of resource utilization of biogas liquid, can solve problems such as difficult engineering and stable operation, inability to concentrate at a high rate, and easy clogging of the membrane, so as to improve the value of use, reduce the number of cleaning times of the membrane, and avoid damage Effect
CN104058799AActive Publication Date: 2014-09-24SHANDONG MINHE BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG MINHE BIOTECHNOLOGY CO LTD
Publication Date
2014-09-24

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Abstract

The invention relates to a biogas slurry concentrate and an engineering preparation method, which belongs to the technical field of biogas slurry resource utilization. The method comprises the following steps: pretreating a membrane of a chicken manure biogas slurry, passing the pretreated biogas slurry through an ultrafilter membrane of an inorganic ceramic membrane for filtering impurity, passing through a nanofiltration membrane and a reverse osmosis membrane for interception and condensation, and final removing solid insoluble particles in the biogas slurry, the macro-molecule substance which is difficult to be absorbed by the crops, high power concentrated biogas slurry organic micromolecule nutrients. The method overcomes of disadvantages of easy membrane obstruction, severe damage, difficult high power condensation, difficult engineering stable operation in prior art, the obtained biogas slurry concentrate finished product is nano level organic state micromolecule substance, has the advantages of comprehensive and balanced nutrition, good water solubility, strong permeability, high activity, and high practical application value.
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Description

technical field

[0001] The invention belongs to the technical field of biogas slurry resource utilization, and in particular relates to a concentrated biogas slurry and an engineering preparation method thereof. Background technique

[0002] Biogas slurry is an excellent organic fertilizer, which is easy to be absorbed by plants, and has both quick-acting and slow-acting properties. Studies have shown that compared with biogas slurry from other raw materials, chicken manure biogas slurry has more comprehensive nutrients, containing nitrogen, phosphorus, potassium, amino acids, protein, calcium, boron, selenium, zinc, vitamins, auxin, gibberellin, sugars, Nucleic acid, butyric acid, acetic acid, vitamin B12 and other nutrients that are beneficial to plant growth have the effects of making crops grow robustly, leaves thicker, and improving the quality of fruits and vegetables.

[0003] With the increase in the number of large and medium-sized biogas projects in China, the amo...

Claims

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