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Multifunctional organic fertilizer prepared by utilizing tannery sludge and wood fibers and preparation method and application thereof

A technology for wood fiber and tanning sludge, which is applied in the preparation of organic fertilizers, organic fertilizers, sewage/sludge fertilizers, etc., can solve the problems of destroying the ecological population structure of soil microorganisms, slow composting fermentation process, and secondary soil pollution. , to achieve the effect of improving the ecological environment, improving soil characteristics, and increasing soil nutrients

Active Publication Date: 2015-12-30
湖北驹龙园茶业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the microbial residues of traditional Chinese medicine used in this patent belong to antibiotic substances, they usually have an inhibitory effect on new fermenting microorganisms, so the composting fermentation process is slow. Applying the fertilizer prepared by this process to the soil will not only cause antibiotic pollution, but also destroy The ecological population structure of soil microorganisms, and the fly ash contains heavy metal ions and toxic ions, which will cause secondary pollution to the soil if it is applied to the soil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for preparing a multifunctional organic fertilizer utilizing tannery sludge and wood fiber is prepared by the following method, and the method comprises the steps of:

[0039] (1) Taking the sludge-containing tannery sewage (the sewage has no odor) of the day before chrome tanning and adding manganese sulfate as raw materials, adding polyacrylamide flocculants to the sewage, and decontaminating the tanning sewage Flocculation, sedimentation, plate-and-frame filtration or self-unloading centrifuge concentration to obtain concentrated tannery sludge with a water content of 85-90%;

[0040] (2) Add 100kg of the concentrated tannery sludge obtained in step (1) and 400kg of edible fungus residue into the pulverizer at the same time, and mix the materials evenly while pulverizing, so that the crushed edible fungus residue The fineness is 100-200 mesh, and the pulverized and mixed materials do not need to be fermented to ensure that the sulfur contained in them is in ...

Embodiment 2

[0044] A method for preparing a multifunctional organic fertilizer utilizing tannery sludge and wood fiber is prepared by the following method, and the method comprises the steps of:

[0045] (1) Using the tanning sewage (the sewage has a strong pungent odor) of the day or more before chrome tanning and adding manganese sulfate as raw material, add polyacrylamide flocculant to the sewage, and After the sewage is flocculated, sedimented, plate-and-frame filtered or concentrated by a self-unloading centrifuge, concentrated sludge with a water content of 85-90% is obtained;

[0046] (2) Add 100kg of the concentrated sludge obtained in step (1), 300kg of the edible fungus residue, 30kg of molasses, and 5kg of potassium dihydrogen phosphate into the pulverizer at the same time. After pulverizing and mixing evenly, it must be After the material is ventilated and fermented for 5 days, the odor of the material disappears, the sulfur ions in the material are basically converted into el...

Embodiment 3

[0050] A kind of multifunctional organic fertilizer utilizing tannery sludge and wood fiber is prepared by the following method, said method comprising the steps of:

[0051] (1) Using chrome-tanned, highly alkaline tanning wastewater containing lime and sodium sulfide without pickling before adding manganese sulfate as raw material, adding polyacrylamide flocculant to the wastewater, Sewage is subjected to flocculation, sedimentation, plate-and-frame filtration or self-unloading centrifuge concentration to obtain concentrated sludge with a water content of 85-90%;

[0052] (2) Add 100kg of the concentrated sludge obtained in step (1), 700kg of edible fungus residue, 35kg of molasses, and 5kg of potassium dihydrogen phosphate into the pulverizer at the same time, stir and mix evenly, so that the pulverized The fineness of the edible fungus residue is 200-300 mesh, and the mixed material is subjected to rapid ventilation for 2 hours without any fermentation treatment in the who...

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Abstract

The invention discloses a multifunctional organic fertilizer prepared by utilizing tannery sludge and wood fibers and a preparation method and application thereof. The multifunctional organic fertilizer is prepared from, by weight, 100 parts of tannery sludge and 300-800 parts of wood fibers. The multifunctional organic fertilizer is prepared by using sludge-containing sewage of a tannery as a raw material, conducting flocculation, precipitation, plate-frame filtration or concentration by means of a self-discharging centrifugal machine on the sewage to obtain the tannery sludge, mixing the tannery sludge with the smashed wood fibers and then performing air drying or compost fermentation. The wood fibers are preferentially edible fungus residues, a certain parts by weight of molasses and a certain parts by weight of phosphate can be further selectively added into the materials to prepare the multifunctional organic fertilizer which can be selectively applied to passivation and toxicity attenuation of tailings in a metallic ore area and alkaline passivation and microorganism adsorption of polluted soil in a common ore area or can be directly applied to garden flowers, resource utilization of the tannery sludge, the edible fungus residues and other waste is achieved, and the effect of using the waste to treat pollution is achieved.

Description

technical field [0001] The invention belongs to the technical field of bio-organic fertilizers, and relates to the technical field of treatment and resource utilization of tannery sewage, more specifically, the invention relates to a multifunctional organic fertilizer utilizing tannery sludge and wood fiber and Its preparation method and application. Background technique [0002] The rapid development of my country's leather industry has caused serious environmental pollution. About 375,000 tons of sludge per year has become a "persistent" problem in my country's leather-intensive areas. Tannery sludge (Tannery Sludge) is the sediment produced in the process of sewage treatment in tannery. It has complex components, including not only washing sludge, but also chlorides, sulfides, phenols, bacterial microorganisms, etc.; rotten hair liming Sludge, mainly composed of sulfide, lime, protein, rotten pulp, etc.; there are also chromium-containing sludge and a small amount of hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F15/00C05F17/00C05F7/00
CPCY02A40/20Y02W30/40
Inventor 李亚东王行国杨兰芳倪红李龙盘李海波卢进登周姗娜李顺意
Owner 湖北驹龙园茶业有限公司
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