Preparation method and implementation technology for petroleum-contaminated soil remediation agent system

A technology for soil remediation and oil pollution, applied in the field of preparation of soil remediation agents, can solve the problems of pollution remediation being greatly restricted by the environment, difficult to reuse polluted soil, low soil water holding efficiency, etc. The effect of increasing vitality and increasing the dissolution effect

Active Publication Date: 2017-09-15
DAQING HUALI ENERGY BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Oilfield exploitation has gone through primary oil recovery, secondary oil recovery and tertiary oil recovery. The currently widely used chemical ASP flooding technology is a high-efficiency enhanced oil recovery technology developed in the tertiary oil recovery stage at home and abroad, but it pollutes the soil extremely Large, and the contaminated soil is difficult to reuse
Bioremediation is a rel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of petroleum-contaminated soil remediation agent system of the present invention is made of soil conditioning liquid, petroleum hydrocarbon degradation bacterial agent, solid fertilizer carrier, biopolymer bacterial agent and nutrient solution,

[0041] The soil conditioner is prepared by mixing 10 parts of biological lipopeptide surfactant, 1 part of humic acid solution, 0.1 part of hydrogen peroxide, and 60 parts of water. The humic acid solution in the soil conditioner The mass concentration is greater than 60%;

[0042] The petroleum hydrocarbon-degrading bacterial agent is prepared by uniformly mixing 1 part of petroleum hydrocarbon-degrading bacteria fermentation stock solution and 15 parts of nutrient solution;

[0043] The solid fertilizer carrier is to crush one or more mixtures of straw, leaves, and discarded fruit and vegetable residues into 1mm particles, and then mix it with organic manure at a mass ratio of 10:0.5, and then use a mass concentration ...

Embodiment 2

[0067] A kind of petroleum-contaminated soil remediation agent system of the present invention is made of soil conditioning liquid, petroleum hydrocarbon degradation bacterial agent, solid fertilizer carrier, biopolymer bacterial agent and nutrient solution,

[0068] The soil conditioner is prepared by uniformly mixing 20 parts of biological lipopeptide surfactant, 10 parts of humic acid solution, 0.5 part of hydrogen peroxide, and 90 parts of water, wherein the mass concentration of humic acid solution is 70%;

[0069] The petroleum hydrocarbon-degrading bacterial agent is prepared by uniformly mixing 5 parts of petroleum hydrocarbon-degrading bacteria fermentation stock solution and 20 parts of nutrient solution;

[0070] The solid fertilizer carrier is to crush one or more mixtures of straw, leaves, and discarded fruit and vegetable residues into 1-3mm particles, and then mix it with organic manure at a mass ratio of 10:0.5, and then use the mass concentration It is infiltr...

Embodiment 3

[0094] A kind of petroleum-contaminated soil remediation agent system of the present invention is made of soil conditioning liquid, petroleum hydrocarbon degradation bacterial agent, solid fertilizer carrier, biopolymer bacterial agent and nutrient solution,

[0095] The soil conditioner is prepared by uniformly mixing 15 parts of biological lipopeptide surfactant, 5 parts of humic acid solution, 0.3 parts of hydrogen peroxide, and 70 parts of water, wherein the mass concentration of humic acid solution is 70%;

[0096] The petroleum hydrocarbon-degrading bacterial agent is prepared by uniformly mixing 3 parts of petroleum hydrocarbon-degrading bacteria fermentation stock solution and 18 parts of nutrient solution;

[0097] The solid fertilizer carrier is to crush one or more mixtures of straw, leaves, and discarded fruit and vegetable residues into 2mm particles, and then mix it with organic manure at a mass ratio of 10:0.5, and then use a mass concentration of 0.05 % humic a...

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PUM

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Abstract

The invention provides a preparation method and an implementation technology for a petroleum-contaminated soil remediation agent system, and relates to a preparation method and an application method for a soil remediation agent. The soil remediation agent system is composed of soil conditioning liquid, a petroleum hydrocarbon degrading bacterium agent, a solid waste carrier, a biological polymer bacterial agent and a nutrient solution. The implementation technology comprises the operation steps that the soil conditioning liquid is sprayed firstly, then the petroleum hydrocarbon degrading bacterium agent is sprayed, an oxygen increasing agent is spread, then the biological polymer bacterial agent is sprayed, solid fertilizer carrier particles are spread, and finally the biological polymer bacterial agent is sprayed again. According to the preparation method and the implementation technology for the petroleum-contaminated soil remediation agent system, the petroleum-contaminated soil remediation agent system can improve the dissolution effect of petroleum and soil, promote the growth of petroleum hydrocarbon microorganisms and inhibit the reproduction of harmful microorganisms; for 5% or less of the petroleum-contaminated soil, the petroleum degradation rate reaches 39-43.7% under the condition that the temperature is 5-10DEG C; and the petroleum degradation rate reaches 59.8% under the condition that the temperature is 15-20 DEG C, and the petroleum degradation rate reaches more than 87.5% under the condition that the temperature is 25-30DEG C.

Description

technical field [0001] The invention relates to a preparation method and an application method of a soil remediation agent, in particular to a preparation method and an implementation process of a petroleum-contaminated soil remediation agent system. Background technique [0002] The petroleum industry is one of the pillar industries of our country's national economy and has a great impact on the development of our country's national economy. Oilfield exploitation has gone through primary oil recovery, secondary oil recovery and tertiary oil recovery. The currently widely used chemical ASP flooding technology is a high-efficiency enhanced oil recovery technology developed in the tertiary oil recovery stage at home and abroad, but it pollutes the soil extremely Large, and the contaminated soil is difficult to reuse. Bioremediation is a relatively environmentally friendly treatment method for oil-contaminated soil. The existing bioremediation technologies are basically based ...

Claims

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Application Information

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IPC IPC(8): B09C1/00B09C1/10C05G3/04C05G1/00C09K17/40C12N15/01C12N1/20C12R1/10C05G3/80
CPCB09C1/00B09C1/105B09C2101/00C05B7/00C05F3/00C05G3/80C09K17/40C12N1/20C12N15/01C05C9/00C05F5/00C05F11/00C05F11/08C05G5/20C05F11/02
Inventor 李波沈玉江刘长宇王柱李国军谢云龙
Owner DAQING HUALI ENERGY BIOLOGICAL TECH
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