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Preparation method for bactericide and granulous compound soil conditioner prepared from bactericide

A bacterial agent and sterile water technology, applied in the field of environmental protection technology and soil improvement, can solve the problems of reducing the ability of reagents to remove pollutants and reducing adsorption capacity, and achieve the effects of facilitating large-scale production, improving adsorption performance, and stable properties.

Inactive Publication Date: 2015-12-23
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water and fertilizer retaining agent has good water and fertilizer retention effect, but the removal of pollutants in the water body is limited. The adsorbent in the agent is unmodified undisturbed soil. Although it has good adsorption performance, its adsorption capacity is not as good as modified The ore-soil phase is greatly reduced, thereby also reducing the ability of the entire reagent to remove pollutants

Method used

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  • Preparation method for bactericide and granulous compound soil conditioner prepared from bactericide
  • Preparation method for bactericide and granulous compound soil conditioner prepared from bactericide
  • Preparation method for bactericide and granulous compound soil conditioner prepared from bactericide

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preparation example Construction

[0027] The preparation method of bacterial agent of the present invention, it comprises the following steps:

[0028] (1) Carry out the screening of strains, the specific process is: take bacteria, fungi, actinomycetes and join in the microbiological reactor respectively, and add sterile water to dilute, then add culture medium respectively, 666, DDT, multi- The mixed solution of chlorinated biphenyls and enzymes are used to adjust the temperature in the microbial reactor to 25-35°C, the pH to be 6-8, the stirring speed to be 120-180r / min, and the bacterial strains to be cultivated under aseptic conditions. These strains have the ability to degrade one, two or three of the three organic pollutants, BHC, DDT, and PCBs. The concentration of organic pollutants in each reactor is detected, and each The degradation rate of organic pollutants in the reactor where the strain is located, and then the reactor where the degradation rate of organic pollutants is relatively large, and can...

Embodiment 1

[0042] (1) Carry out the screening of strains, the specific process is: take bacteria, fungi, actinomycetes and join in the microbiological reactor respectively, and add sterile water to dilute, then add culture medium respectively, 666, DDT, multi- The mixed solution of chlorinated biphenyls and the enzyme, the temperature in the microbial reactor is adjusted to 25° C., the pH is 6, the stirring speed is 120 r / min, and the bacterial strain is cultivated under aseptic conditions. These strains have the ability to degrade one, two or three of the three organic pollutants, BHC, DDT, and PCBs. The concentration of organic pollutants in each reactor is detected, and each The degradation rate of organic pollutants in the reactor where the strain is located, and then the reactor where the degradation rate of organic pollutants is relatively large, and can simultaneously degrade the three types of organic compounds such as HCH, DDT, and PCBs, and The bacterial strains in the reactor ...

Embodiment 2

[0062] (1) Carry out the screening of strains, the specific process is: take bacteria, fungi, actinomycetes and join in the microbiological reactor respectively, and add sterile water to dilute, then add culture medium respectively, 666, DDT, multi- The mixed solution of chlorinated biphenyls and the enzyme, the temperature in the microbial reactor is adjusted to 35° C., the pH is 6.5, the stirring speed is 135 r / min, and the bacterial strain is cultivated under sterile conditions. These strains have the ability to degrade one, two or three of the three organic pollutants, BHC, DDT, and PCBs. The concentration of organic pollutants in each reactor is detected, and each The degradation rate of organic pollutants in the reactor where the strain is located, and then the reactor where the degradation rate of organic pollutants is relatively large, and can simultaneously degrade the three types of organic compounds such as HCH, DDT, and PCBs, and The bacterial strains in the reacto...

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Abstract

The invention discloses a preparation method for a bactericide and a granulous compound soil conditioner prepared from the bactericide. The preparation method for the bactericide comprises the following steps that 1, strains are selected; 2, the selected actinomycetes, gram negative bacteria and white rot fungi are cultured in a large scale to obtain a large quantity of degrading bacteria; 3, the solid-state powder bactericide is prepared. The soil conditioner is prepared from 76%-80% of the solid-state powder bactericides, 7%-10% of nitrogenous fertilizer or calcium magnesia phosphate fertilizer or potash fertilizer or mixtures of several of the nitrogenous fertilizer, the calcium magnesia phosphate fertilizer and the potash fertilizer, 7%-10% of farmyard manure and 4%-6% of lanthanide microelements. The solid-state powder bactericide compounded with attapulgite and microorganisms can fully achieve the advantages of the attapulgite and the microorganisms, greatly improve the adsorbing property and adsorbing efficiency to organic pollutants, keep and maintain the soil environment and be treated on site and is suitable for treating soil pollution in a large area.

Description

technical field [0001] The invention belongs to the field of environmental protection technology and soil improvement technology, and specifically relates to a method for compounding attapulgite modified by microwaves and microorganisms and a method for degrading organic pollution in soil by the compounded product, and a method for continuously maintaining or increasing soil fertility granular fertilizer. Background technique [0002] In the past 30 years, with the rapid development of social economy and high-intensity human activities, the range of soil degraded by pollution in my country has continued to expand, and the deterioration of soil quality has intensified. Due to the application of a large amount of chemical fertilizers, pesticides and other substances on the land and the man-made discharge of pollutants, common problems such as soil nutrient loss, soil compaction, and soil replacement have been caused, which directly affect food production and food safety, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N11/14C09K17/40C05G3/04C09K101/00C05G3/80
Inventor 丁辉赵丹
Owner TIANJIN UNIV