CN106269846A

CN106269846A - A kind of organophosphor, organochlorine, the restorative procedure of pyrethroid pesticide contaminated soil

Info

Publication number: CN106269846A
Application number: CN201610690690.7A
Authority: CN
Inventors: 余敏敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-20
Filing date: 2016-08-20
Publication date: 2017-01-04

Abstract

The present invention relates to agricultural crop straw applied technical field, it is specifically related to a kind of organophosphor, organochlorine, the restorative procedure of pyrethroid pesticide contaminated soil, after plot shallow plowing will be polluted, apply the wheat stalk that inoculation radioactive soil bacillus LQC 99 fermentation obtains, product fermentation obtained puts on pollution plot in every mu of ratio applying 30 50kg, mix is uniform, at upper soll layer mulching straw, after 8 10 days, reparation terminates, the Caulis et Folium Oryzae covered by upper soll layer is removed, rehabilitation cost is low, restorative procedure is simple, repair time is short, to organophosphorus pesticide, organochlorine pesticide, pyrethroids pesticide degradation rate is more than 91.33%, reparation will not produce secondary pollution.

Description

A kind of organophosphor, organochlorine, the restorative procedure of pyrethroid pesticide contaminated soil

Technical field

The present invention relates to agricultural crop straw applied technical field, be specifically related to a kind of organophosphor, organochlorine, pyrethroid The restorative procedure of class pesticide contaminated soil.

Background technology

In soil pollution at present, machine phosphorus, organochlorine, pyrethroid pesticide are to cause soil pollution one of the chief elements.

Wherein organophosphorus pesticide occupies critical role in insecticide, is to produce and use most pesticide product in the world Kind,

It is disabled that pyrethroid pesticide is as some high-toxic organic phosphorus pesticide, is increasingly becoming the main of organophosphorus pesticide Succedaneum, uses frequency to be also gradually increased.

Although the organochlorine pesticide time of disabled nearly 20 years, but still can detect in soil, and it is biological rich Collection effect has reached the highest level.

At present to the reparation of pesticide contaminated soil mainly based on peripheral doses and biological restoration, peripheral doses technology is Big drawback is that pollutant removal is thorough not, thus causes the generation of secondary pollution.Bioremediation technology compared with peripheral doses, Have that expense is low, efficiency is high, security performance is good, be easily managed and operate, will not produce the advantages such as secondary pollution, pollute repairing Soil plays the most important effect.

Summary of the invention

It is an object of the invention to provide a kind of organophosphor, organochlorine, the restorative procedure of pyrethroid pesticide contaminated soil, Belonging to bioremediation technology, in this processing procedure, Appropriate application wheat stalk is as repairing raw material, has after carbonization-activation processes Extremely strong adsorption, is combined with microorganism the pesticide absorption degradation in soil, and rehabilitation cost is low, and restorative procedure is simple, repaiies The multiple time is short, and to organophosphorus pesticide, organochlorine pesticide, pyrethroids pesticide degradation rate more than 91.33%, reparation will not Produce secondary pollution.

A kind of organophosphor of the present invention, organochlorine, the restorative procedure of pyrethroid pesticide contaminated soil, specifically comprise the following steps that

Plot shallow plowing 18-20cm will be polluted；

Wheat stalk is pulverized, crushing piece segment length 1-2cm, be placed in microwave drying carbonization device, at 130-135 DEG C, process After 60-70 minute, spraying concentration is the clarification lime water of 2%, makes wheat stalk humidity be maintained at 60%, is again placed in microwave drying In carbonization device, at 260-280 DEG C, activation processing 100-105 minute；

Wheat stalk after activation processing is crushed to 30-50 mesh, presses 50-80:0.1:10 with sucrose, bean dregs, vitamin B: The weight ratio mixing of 0.02, the regulation humidity that adds water to 65-68%, inoculation radioactive soil bacillus LQC-99, inoculum concentration is 2-3%, 30 DEG C of bottom fermentations 3-5 hour；

Product fermentation obtained puts on pollution plot in every mu of ratio applying 30-50kg, and mix is uniform, and the mix degree of depth is 10-15cm, uniformly executes water after mix, make soil moisture at 55-58%, at upper soll layer mulching straw, after 8-10 days, repair knot Bundle, the Caulis et Folium Oryzae covered by upper soll layer is removed.

Detailed description of the invention

Below in conjunction with detailed description of the invention, the present invention will be described:

Embodiment 1,

Plot shallow plowing 18cm will be polluted；

Wheat stalk is pulverized, crushing piece segment length 1cm, be placed in microwave drying carbonization device, at 130 DEG C, process 60 minutes After, spraying concentration is the clarification lime water of 2%, makes wheat stalk humidity be maintained at 60%, is again placed in microwave drying carbonization device In, at 260 DEG C, activation processing 100 minutes；

Wheat stalk after activation processing is crushed to 30 mesh, with the weight that sucrose, bean dregs, vitamin B press 50:0.1:10:0.02 Amount is than mixing, and the regulation humidity that adds water, to 65%, inoculates radioactive soil bacillus LQC-99, and inoculum concentration is 2%, at 30 DEG C of bottom fermentations 3 Hour；

Product fermentation obtained puts on pollution plot in every mu of ratio applying 30kg, and mix is uniform, and the mix degree of depth is 10cm, uniformly executes water after mix, make soil moisture 55%, and at upper soll layer mulching straw, after 8 days, reparation terminates, by soil The Caulis et Folium Oryzae of Surface mulch is removed.

Organophosphorus pesticide, organochlorine pesticide, pyrethroid are removed the following table of division result by this processing method:

Insecticide pollution	Experimental period	Result/clearance
			Organophosphorus pesticide	8-10 days	100%
Organochlorine pesticide	8-10 days	87%
			Pyrethroid	8-10 days	92.03%

Embodiment 2,

Plot shallow plowing 19cm will be polluted；

Wheat stalk is pulverized, crushing piece segment length 1.5cm, be placed in microwave drying carbonization device, at 132 DEG C, process 65 points Zhong Hou, spraying concentration is the clarification lime water of 2%, makes wheat stalk humidity be maintained at 60%, is again placed in microwave drying carbonization and sets In Bei, at 270 DEG C, activation processing 102 minutes；

Wheat stalk after activation processing is crushed to 40 mesh, with the weight that sucrose, bean dregs, vitamin B press 650:0.1:10:0.02 Amount is than mixing, and the regulation humidity that adds water, to 67%, inoculates radioactive soil bacillus LQC-99, and inoculum concentration is 2.5%, at 30 DEG C of bottom fermentations 4 hours；

Product fermentation obtained puts on pollution plot in every mu of ratio applying 40kg, and mix is uniform, and the mix degree of depth is 13cm, uniformly executes water after mix, make soil moisture 57%, at upper soll layer mulching straw, after 9 days, covered by upper soll layer Caulis et Folium Oryzae is removed.

Insecticide pollution	Experimental period	Result/clearance
			Organophosphorus pesticide	8-10 days	100%
Organochlorine pesticide	8-10 days	87.39%
			Pyrethroid	8-10 days	92.26%

Embodiment 3,

Plot shallow plowing 20cm will be polluted；

Wheat stalk is pulverized, crushing piece segment length 2cm, be placed in microwave drying carbonization device, at 135 DEG C, process 70 minutes After, spraying concentration is the clarification lime water of 2%, makes wheat stalk humidity be maintained at 60%, is again placed in microwave drying carbonization device In, at 280 DEG C, activation processing 105 minutes；

Wheat stalk after activation processing is crushed to 30-50 mesh, presses 80:0.1:10:0.02's with sucrose, bean dregs, vitamin B Weight ratio mixes, and the regulation humidity that adds water, to 65-68%, inoculates radioactive soil bacillus LQC-99, and inoculum concentration is 3%, at 30 DEG C Ferment 5 hours；

Product fermentation obtained puts on pollution plot in every mu of ratio applying 50kg, and mix is uniform, and the mix degree of depth is 15cm, uniformly executes water after mix, make soil moisture 58%, at upper soll layer mulching straw, after 10 days, covered by upper soll layer Caulis et Folium Oryzae remove.

Insecticide pollution	Experimental period	Result/clearance
			Organophosphorus pesticide	8-10 days	100%
Organochlorine pesticide	8-10 days	88.41%
			Pyrethroid	8-10 days	95.77%

Claims

1. an organophosphor, organochlorine, the restorative procedure of pyrethroid pesticide contaminated soil, it is characterised in that specifically walk Rapid as follows:

1) plot shallow plowing 18-20cm will be polluted；

2) wheat stalk is pulverized, be placed in microwave drying carbonization device, at 130-135 DEG C, after processing 60-70 minute, spray Execute the clarification lime water that concentration is 2%, make wheat stalk humidity be maintained at 60%, be again placed in microwave drying carbonization device, At 260-280 DEG C, activation processing 100-105 minute；

3) wheat stalk after activation processing is crushed to 30-50 mesh, presses 50-80:0.1:10 with sucrose, bean dregs, vitamin B: The weight ratio mixing of 0.02, the regulation humidity that adds water, to 65-68%, inoculates radioactive soil bacillus LQC-99, at 30 DEG C of bottom fermentation 3- 5 hours, obtain tunning；

4) tunning puts on pollution plot, and mix is uniform, uniformly executes water after mix, make soil moisture at 55-58%, Upper soll layer mulching straw.

A kind of organophosphor the most according to claim 1, organochlorine, the reparation side of pyrethroid pesticide contaminated soil Method, it is characterised in that

The a length of 1-2cm of wheat crushing section shape.

Radioactive soil bacillus LQC-99 inoculum concentration is 2-3%.

Tunning puts on pollution plot in every mu of ratio applying 30-50kg, and the mix degree of depth is 10-15cm.