CN105327935A - Phytoremediation soil auxiliary fertilizer - Google Patents

Abstract

The invention discloses a phytoremediation soil auxiliary fertilizer. The phytoremediation soil auxiliary fertilizer is prepared from, by weight, 11-13 parts of toosendan fruit sawdust, 36-38 parts of rape seed cake powder, 7-9 parts of peat soil, 5-6 parts of residues of monosodium glutamate, 1-2 parts of zinc sulfate, 1-3 parts of sodium hexametaphosphate, 3-4 parts of chitosan, 28-32 parts of horseradish tree pods, 16-17 parts of siderite slags, 16-17 parts of limonite slags, 68-74 parts of orange peels, 3-5 parts of effective microorganism (EM) agents and a proper amount of water. According to the soil remediation fertilizer, the quantity of effective microorganisms in soil can be remarkably increased by addition of the plentiful carbon-source nutrients, so that degradation of organic pollutants in soil is promoted, the soil micro-ecological environment is improved, a good soil granular structure is formed, and the soil fertility recovers and is improved; and by matching of cultivation of heavy metal accumulation plants, accumulator plants can grow quickly, the heavy metal absorption and storage amount is increased, and consequently the phytoremediation efficiency is improved.

Description

A kind of plant soil restoration auxiliary fertilizer

Technical field

The present invention relates to technical field of fertilizers, particularly relate to a kind of plant soil restoration auxiliary fertilizer.

Background technology

Along with the fast development of economy and the progress of industrial technology, work, the harmful effect of agricultural production to environment are constantly aggravated, constantly stack to soil surface due to solid waste and topple over, harmful waste water constantly permeates in soil, pernicious gas in air and floating dust are also continuous to be dropped in soil with rainwater, result in soil pollution.Not only reduce the seed output and quality of crops, also the health of indirect hazard.

And to the improvement of soil pollution mainly through engineering repairing method and phytoremediation, wherein engineering repairing method mainly comprises the method for improving the soil, electro reclamation, Soil leaching and heat treating process etc., engineering control measure is applicable to that contaminated area is little usually, severe pollutant and easily the soil effect of diffusion is comparatively obvious, fundamentally can improve soil at all, but treatment cost is high, and easily form secondary pollution, also possibility spoiled soil structure, easily causes soil fertility to decline.The usual cost of phytoremediation technology is low, soil organic matter content and soil fertility can be improved, but the patience of plant heavy metal pollutant is limited, be only applicable to the soil remediation of medium pollution degree, a Plants can only repair the soil of a certain heavy metal pollution usually simultaneously, and other heavy metals likely in activating soil, for various metals and organic combined pollution poor effect, super enriching plant poor growth, usual repairing efficiency is longer, is difficult to the requirement that satisfied quick rehabilitating soil pollutes.

Charcoal has good absorption property, stable chemical nature, can reduce the biological effectiveness of heavy metal in soil, can improve crop yield, and raw material is extensive, cost is low, makes it in pollution administration soil, have clear superiority and using value simultaneously.For this reason, current inventor provides a kind of take charcoal as the soil remediation fertilizer of immobilized matrix, and the reparation for soil pollution provides a kind of effective way.

Summary of the invention

The object of the invention is exactly the defect in order to make up prior art, provides a kind of plant soil restoration auxiliary fertilizer.

The present invention is achieved by the following technical solutions:

A kind of plant soil restoration auxiliary fertilizer, is made up of the raw material of following weight portion: Fructus meliae toosendan sawdust 11-13, coarse colza meal 36-38, peat soil 7-9, residue of monosodium glutamate 5-6, zinc sulfate 1-2, calgon 1-3, shitosan 3-4, Moringa beanpod 28-32, sparring slag 16-17, limonite slag 16-17, tangerine peel 68-74, EM complex micro organism fungicide 3-5, water are appropriate.

The concrete steps of the preparation of described soil remediation fertilizer are as follows:

(1) mix after tangerine peel, Moringa beanpod dryness in the sun with sparring slag, be placed in airtight calcining furnace, 380-420 DEG C is warming up under nitrogen atmosphere with the speed of 20 DEG C/min, be incubated and add limonite slag after 15-25 minute, keep thermotonus 30-40 minute, then cool the temperature to 220-240 DEG C, constantly oxygen is passed in airtight calcining furnace, take out calcined product after 30 minutes, concussion is rocked after 10-15 minute and is crossed 20 mesh sieves, obtains magnetic bio carbon powder for subsequent use;

(2) Fructus meliae toosendan sawdust, coarse colza meal, peat soil, residue of monosodium glutamate mixing are dropped in fermentation vat, add water and keep fermentation heap water content at 50-60%, ferment and take out fermentation materials after 24-26 days, and squeeze and filter, obtain fermentation solid residue and zymotic fluid for subsequent use;

(3) 65-70 DEG C is heated to after being mixed with zinc sulfate, calgon by step 2 gained zymotic fluid, stir after 10-15 minute and add step 1 gained charcoal powder again, dipping 50-70 minute, during dipping, ultrasound wave irradiation is adopted to zymotic fluid, supersonic frequency is 20-30kHz, and power is 65-75W, and the time is 90-120 minute, flood rear filtered through gauze, obtain dipping charcoal for subsequent use;

(4) step 3 gained dipping charcoal is mixed with step 2 gained fermentation solid residue, EM complex micro organism fungicide, shitosan and other leftover materials be placed on granulation in comminutor, for subsequent use;

(5) frequency of utilization is 30-40kHz, power be the ultrasonic wave of 10W to step 4 gained particle irradiation 60-80 minute, weigh after packaging, obtain soil remediation fertilizer of the present invention.

The using method of repairing fertiliser of the present invention is be manured into soil after mixing according to the part by weight of 20%-25% and common fertilizer.

Advantage of the present invention is:

The sparring slag of same part by weight and limonite slag and living beings mixed calcining is used in preparation process, can by the recycling between product, the charcoal of the high magnetic of more efficient acquisition, and significantly increase charcoal surface-active whereby, improve adsorptivity, add the accumulation ability to soil harmful components, coordinate organic and effect that is inorganic filler to play the dual-use function of nutrient supply and soil remediation.

Air in charcoal inner pore can be discharged by the ultrasound wave irradiation in preparation process during dipping, improves the uniformity coefficient that in zymotic fluid, solute disperses in charcoal, shortens dip time.

In preparation process, second time ultrasound wave irradiation can increase the activity of microorganism in fertiliser granulates after granulation, improves the removal effect of dehydrogenase activity and organic pollution.

Soil remediation fertilizer of the present invention is by the nutraceutical interpolation of a large amount of carbon source, quantity of useful microbe in soil can be made significantly to increase, thus promote the degraded of soil organic pollutant, improve soil microenvironment, form good soil aggregate, recover soil fertility, build up fertility, coordinate heavy metal accumulation cultivation of plants, accumulator plant can be made to grow fast, strengthen the absorption storage capacity of heavy metal, thus improve phytoremediation efficiency.

Detailed description of the invention

A kind of plant soil restoration auxiliary fertilizer, is made up of the raw material of following weight portion (kg): Fructus meliae toosendan sawdust 11, coarse colza meal 36, peat soil 7, residue of monosodium glutamate 5, zinc sulfate 1, calgon 1, shitosan 3, Moringa beanpod 28, sparring slag 16, limonite slag 16, tangerine peel 68, EM complex micro organism fungicide 3, water are appropriate.

The concrete steps of the preparation of described soil remediation fertilizer are as follows:

(1) mix after tangerine peel, Moringa beanpod dryness in the sun with sparring slag, be placed in airtight calcining furnace, 380 DEG C are warming up under nitrogen atmosphere with the speed of 20 DEG C/min, be incubated and add limonite slag after 15 minutes, keep thermotonus 30 minutes, then cool the temperature to 220 DEG C, constantly oxygen is passed in airtight calcining furnace, take out calcined product after 30 minutes, concussion is rocked after 10 minutes and is crossed 20 mesh sieves, obtains magnetic bio carbon powder for subsequent use;

(2) Fructus meliae toosendan sawdust, coarse colza meal, peat soil, residue of monosodium glutamate mixing are dropped in fermentation vat, add water and keep fermentation heap water content 50%, ferment and take out fermentation materials after 24 days, and squeeze and filter, obtain fermentation solid residue and zymotic fluid for subsequent use;

(3) 65 DEG C are heated to after being mixed with zinc sulfate, calgon by step 2 gained zymotic fluid, stir after 10 minutes and add step 1 gained charcoal powder again, flood 50 minutes, during dipping, ultrasound wave irradiation is adopted to zymotic fluid, supersonic frequency is 20kHz, and power is 65W, and the time is 90 minutes, flood rear filtered through gauze, obtain dipping charcoal for subsequent use;

(4) step 3 gained dipping charcoal is mixed with step 2 gained fermentation solid residue, EM complex micro organism fungicide, shitosan and other leftover materials be placed on granulation in comminutor, for subsequent use;

(5) frequency of utilization is 30kHz, power be the ultrasonic wave of 10W to step 4 gained particle irradiation 60 minutes, after weighing, packaging, obtains soil remediation fertilizer of the present invention.

In order to further illustrate using value of the present invention, inventor have chosen the rice test field of one piece of light contamination, wherein half only uses common fertilizer as a control group during rice cultivation, second half uses repairing fertiliser of the present invention and common fertilizer mixed planting as experimental group, to soil sampling analysis between planting season, as follows in conjunction with rice yield:

Control group

Experimental group

Soil available nitrogen content (mg/kg)	49.55	59.79
			Soil available phosphorus content (mg/kg)	82.95	100.80
Available potassium in soils content (mg/kg)	140.75	174.63
			Soil CEC (cmol/kg)	10.89	12.32
Rice yield (kg/ mu)	462	492

After can being found out employed soil remediation fertilizer of the present invention by above data, in soil, available nutrient content obviously increases, and soil fertility gets a promotion, the level of soil pollution simultaneously reduces, ion exchange capacity increases, and the final output improving crop, to soil, there is significant improved effect.

Claims (2)

1. a plant soil restoration auxiliary fertilizer, it is characterized in that, be made up of the raw material of following weight portion: Fructus meliae toosendan sawdust 11-13, coarse colza meal 36-38, peat soil 7-9, residue of monosodium glutamate 5-6, zinc sulfate 1-2, calgon 1-3, shitosan 3-4, Moringa beanpod 28-32, sparring slag 16-17, limonite slag 16-17, tangerine peel 68-74, EM complex micro organism fungicide 3-5, water are appropriate.

2. plant soil restoration auxiliary fertilizer according to claim 1, is characterized in that, the concrete steps of preparation method are as follows:

(1) mix after tangerine peel, Moringa beanpod dryness in the sun with sparring slag, be placed in airtight calcining furnace, 380-420 DEG C is warming up under nitrogen atmosphere with the speed of 20 DEG C/min, be incubated and add limonite slag after 15-25 minute, keep thermotonus 30-40 minute, then cool the temperature to 220-240 DEG C, constantly oxygen is passed in airtight calcining furnace, take out calcined product after 30 minutes, concussion is rocked after 10-15 minute and is crossed 20 mesh sieves, obtains magnetic bio carbon powder for subsequent use;

(2) Fructus meliae toosendan sawdust, coarse colza meal, peat soil, residue of monosodium glutamate mixing are dropped in fermentation vat, add water and keep fermentation heap water content at 50-60%, ferment and take out fermentation materials after 24-26 days, and squeeze and filter, obtain fermentation solid residue and zymotic fluid for subsequent use;

(3) 65-70 DEG C is heated to after being mixed with zinc sulfate, calgon by step 2 gained zymotic fluid, stir after 10-15 minute and add step 1 gained charcoal powder again, dipping 50-70 minute, during dipping, ultrasound wave irradiation is adopted to zymotic fluid, supersonic frequency is 20-30kHz, and power is 65-75W, and the time is 90-120 minute, flood rear filtered through gauze, obtain dipping charcoal for subsequent use;

(4) step 3 gained dipping charcoal is mixed with step 2 gained fermentation solid residue, EM complex micro organism fungicide, shitosan and other leftover materials be placed on granulation in comminutor, for subsequent use;

(5) frequency of utilization is 30-40kHz, power be the ultrasonic wave of 10W to step 4 gained particle irradiation 60-80 minute, weigh after packaging, obtain soil remediation fertilizer of the present invention.