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Functional organic fertilizer capable of dissolving phosphorus, fixing nitrogen and efficiently removing heavy metals and preparation method thereof

A technology of heavy metals and organic fertilizers, applied in the direction of organic fertilizers, fertilizers made of biological waste, and fertilization devices, can solve the problems of large environmental pollution and high content of heavy metals in plants, and achieve the effect of simple process and easy access to raw materials

Inactive Publication Date: 2017-11-03
安徽乐农环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic fertilizers have the advantages of fast fertilizer efficiency, but have the disadvantages of large environmental pollution, such as phosphorus pollution; organic fertilizers have the advantages of being more environmentally friendly, but they still have certain defects, such as being generally rich in heavy metals, which in turn leads to the growth of cultivated plants. High content of heavy metals

Method used

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preparation example Construction

[0012] The invention provides a method for preparing a functional organic fertilizer for removing phosphorus and nitrogen and fixing heavy metals efficiently, the preparation method comprising:

[0013] 1) Ball mill PAL (palygorskite), cyclodextrin and silane coupling agent to obtain PAL powder;

[0014] 2) Contact reaction of PAL powder, PVP (polyvinylpyrrolidone) and thiourea to prepare PAL-M material;

[0015] 3) Mix and ferment PAL-M material, livestock and poultry manure, plant straw, soybean meal, chlorella, azotobacter terrescens, Bacillus megaterium, and Bacillus colioids to obtain a functional organic fertilizer that decomposes phosphorus, fixes nitrogen, and efficiently removes heavy metals .

[0016] In step 1) of the preparation method provided by the present invention, the amount of each material can be selected within a wide range, but in order to make the functional organic fertilizer obtained have more excellent effects of phosphorus solubilization, nitrogen f...

Embodiment 1

[0027] 1) Ball mill PAL, cyclodextrin, and silane coupling agent (coupling agent KH550) according to the weight ratio of 1:0.4:0.10 (the mass ratio of large balls to small balls is 2:1.4, the mass of grinding balls and materials The ratio is 10:0.9, the rotation speed is 1800rpm, and the ball milling time is 30min) to obtain PAL powder;

[0028] 2) Contact reaction of PAL powder, PVP and thiourea at a weight ratio of 1:0.03:0.3 at 100°C for 10 hours to prepare PAL-M material;

[0029] 3) The PAL-M material, livestock and poultry manure, plant straw (wheat straw), soybean meal, chlorella, nitrogen-fixing bacteria torus, Bacillus megaterium, and Bacillus colioids are mixed according to the ratio of 1:2.5:5:0.7:1.3:0.2 : 0.10: 0.06 weight ratio, mixed and fermented at 25°C for 50 hours to prepare functional organic fertilizer A1, which can decompose phosphorus, fix nitrogen and efficiently remove heavy metals.

Embodiment 2

[0031] 1) Ball mill PAL, cyclodextrin, and silane coupling agent (coupling agent KH560) according to the weight ratio of 1:0.3:0.05 (the mass ratio of large balls to small balls is 2:1.3, the mass of balls and materials The ratio is 10:0.8, the rotation speed is 1500rpm, and the ball milling time is 25min) to obtain PAL powder;

[0032] 2) The PAL powder, PVP and thiourea were subjected to a contact reaction at 80°C for 8 hours at a weight ratio of 1:0.02:0.2 to obtain a PAL-M material;

[0033] 3) The PAL-M material, livestock and poultry manure, plant straw (rice straw), soybean meal, chlorella, nitrogen-fixing bacteria torus, Bacillus megaterium, and Bacillus colioids are mixed according to the ratio of 1:2:4:0.5:1:0.1 The weight ratio of :0.05:0.02 was mixed and fermented at 20°C for 36 hours to obtain the functional organic fertilizer A2, which can decompose phosphorus, fix nitrogen and efficiently remove heavy metals.

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Abstract

The invention discloses functional organic fertilizer capable of dissolving phosphorus, fixing nitrogen and efficiently removing heavy metals and a preparation method thereof. The preparation method comprises the following steps: 1) carrying out ball milling on PAL (palygorskite), cyclodextrin and a silane coupling agent to obtain PAL powder; 2) enabling PAL powder and PVP (polyvinylpyrrolidone) to contact with thiourea for reaction to obtain a PAL-M material; 3) mixing the PAL-M material, livestock manure, plant stalks, soybean meal, chlorella, azotobacter chroococcum, bacillus megaterium and bacillus mucilaginosus for fermentation to obtain the functional organic fertilizer capable of dissolving the phosphorus, fixing the nitrogen and efficiently removing the heavy metals. The functional organic fertilizer prepared by the method has the excellent effects of dissolving the phosphorus, fixing the nitrogen and efficiently removing the heavy metals, and meanwhile the method has the advantages of easy availability of raw materials and simple process.

Description

technical field [0001] The invention relates to an organic fertilizer, in particular to a functional organic fertilizer capable of decomposing phosphorus and fixing nitrogen and efficiently removing heavy metals. Background technique [0002] Fertilizer is a type of substance that provides one or more essential nutrients for plants, improves soil properties, and increases soil fertility. Among them, fertilizers can be divided into inorganic fertilizers and organic fertilizers. Inorganic fertilizers are mainly single unit fertilizers (containing only one nutrient element) and compound fertilizers (containing two or more nutrient elements); while organic fertilizers are mainly obtained through Fertilizers made from organic matter. Inorganic fertilizers have the advantages of fast fertilizer efficiency, but have the disadvantages of large environmental pollution, such as phosphorus pollution; organic fertilizers have the advantages of being more environmentally friendly, but...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
CPCC05F3/00C05G3/80C05F5/002C05F11/00C05F11/08
Inventor 傅剑锋
Owner 安徽乐农环保科技有限公司
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