Method for preparing farming soil remediation agent based on PAL-M material and plant residues

A technology of soil remediation agent and plant residue, applied in the field of functional soil remediation agent, can solve the problems such as the complicated preparation process of modified PAL materials, achieve the effect of improving adsorption capacity and increasing repairing effect

Inactive Publication Date: 2018-07-10
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

However, the preparation process of the modified PAL material is more complicated and needs to be further improved.

Method used

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  • Method for preparing farming soil remediation agent based on PAL-M material and plant residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of method for preparing agricultural soil remediation agent based on PAL-M material and plant residue, the concrete steps of preparation are as follows:

[0023] 1) Stir and mix the PAL powder with a particle size of 300 mesh and a NaOH solution with a concentration of 2mol / L and a volume 0.5 times the volume of the PAL powder, and then ultrasonically treat the mixed alkaline PAL powder at a power of 350w and a frequency of 40Hz for 45min. Wash the PAL powder to neutrality, and then dry it at 150°C, which is conducive to the opening and formation of the internal cavity of the PAL powder and the removal of impurities in the PAL powder, and then the pretreated PAL powder, silane coupling agent, polyvinylpyrrolidone and Thiourea is mixed evenly in a mass ratio of 1:0.15:0.06:0.6, then ultrasonically reacted for 100min at a power of 350w and a frequency of 40Hz, and the PAL-M material prepared by ultrasonic inversion, wherein the selected silane coupling agent is made...

Embodiment 2

[0027] This embodiment is the same as Example 1, except that the parts by weight of PAL-M material, activated sludge, plant residue, gelatin and EM bacteria in this embodiment are 30 parts of PAL-M material, 25 parts of activated sludge, 15 parts of plant residue, 8 parts of gelatin and 1 part of EM bacteria.

Embodiment 3

[0029] This embodiment is the same as Example 1, except that the parts by weight of PAL-M material, activated sludge, plant residue, gelatin and EM bacteria in this embodiment are 45 parts of PAL-M material, 15 parts of activated sludge, 15 parts of plant residues, 5 parts of gelatin and 3 parts of EM bacteria.

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Abstract

The invention discloses a method for preparing a farming soil remediation agent based on a PAL-M material and plant residues, and belongs to the technical field of functional soil remediation agents.The preparation method comprises the following steps: preprocessing PAL by adopting an alkali lye and ultrasound combination technology, ultrasonically reacting the preprocessed PAL material, a silanecoupling agent, polyvinylpyrrolidone and thiourea to prepare the PAL-M material, performing mixing granulating fermentation on the PAL-M material, activated sludge, the plant residues and an EM bacterium, and sprinkling a gelatin solution on the surface of fermented grains to form a netted protection film on the surface of the grains. The prepared remediation agent has dual advantages of a fertilizer and remediation, and the formed netted protection film makes the remediation agent have a sustained release property. The method improves the utilization rate of the remediation agent.

Description

technical field [0001] The invention belongs to the technical field of functional soil remediation agents, and in particular relates to a method for preparing agricultural soil remediation agents based on PAL-M materials and plant residues. Background technique [0002] Due to the application of chemical fertilizers, the current soil pollution is relatively serious. The current soil restoration methods are mainly physical, chemical and biological. The physical method is suitable for accidental pollution, the chemical method is more economical and efficient, and the biological method is more environmentally friendly. . The development trend of today's heavily polluted soil remediation is the combined use of existing technologies. For example, Chinese Patent Publication No. CN107324957A uses ethanol and amino acid to modify PAL (palygorskite) material by hydrothermal reaction, and then carries out branch polymerization reaction with modified PAL material, lactic acid and sulf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/00C09K17/40A01B79/02C05G3/80
CPCA01B79/02C05C9/00C05G3/00C05G3/80C05G5/30C09K17/40C09K2101/00C05C11/00C05D9/00C05F7/00C05F11/00C05F11/08
Inventor 傅剑锋熊伟
Owner 安徽乐农环保科技有限公司
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