CN105969372A - Soil conditioner by taking plant ash in power plants as main raw material - Google Patents

Abstract

The invention discloses a soil conditioner by taking plant ash in the power plants as a main raw material. The soil conditioner comprises the following raw materials in parts by weight: 54-56 parts of plant ash in the power plants, 1.9-2.3 parts of sodium molybdate, 3.6-3.9 parts of whey powder, 14-16 parts of oil cake, 10-11 parts of cereal residues, 15-17 parts of pericarp, 2.3-2.5 parts of sodium carboxymethyl starch, 42-44 parts of polluted pen manure, 13-14 parts of papermaking black liquor, 2.7-2.8 parts of a nitric acid solution with concentration being 10%, 13-14 parts of alum slurry, and a proper amount of water. The soil conditioner employs the waste material plant ash in the biological power plants as the main raw material, the plant ash is performed with decomposed fermentation, and then the toxic substances are removed, content of macroelement and trace element can be guaranteed by the source of the plant ash diversity raw material, the acidic soil poor in nutrient can be effectively improved by combining with the alkalescence characteristic of the plant ash, a physical structure of the soil is improved, the soil organic content is increased, usage of the waste material as the main material can greatly reduce the production cost of the soil conditioner, and the soil conditioner has good applicability.

Description

A kind of soil conditioner with power plant's plant ass as primary raw material

Technical field

The present invention relates to technical field of soil remediation, particularly relate to a kind of soil conditioner with power plant's plant ass as primary raw material.

Background technology

Soil improvement is the bad quality for soil and structure, takes corresponding measure to improve soil property, increases soil fertility, and soil improvement renovation agent is a kind of important application of soil improvement.But seen soil remediation modifying agent has many defects in the market: one is to use raw material with synthetic macromolecular compound, and it is not easily decomposed and extended residual in soil, has potential safety hazard；Two is function singleness, for variety classes soil, such as acid and basic soil, heavy metal pollution degree, nutrient are deficient etc. without effectively for, cause improveing remediation efficiency low, even play retroaction；Three is that the cycle of improving the soil is long, and relatively costly, it is impossible to large-scale application.For problem above, low cost, high specific aim and environmentally friendly soil remediation modifying agent become soil improvement aspect prior development direction.

Pig dung and urine is as a kind of renewable biological source wide, with low cost of originating, the nutrients such as abundant organic matter and N P and K are contained because of it, use as the raw material of soil improvement reparation and there is great potential, and owing to economization cultivation needs, during pig is fed, feedstuff contains a large amount of additive, cause heavy metals exceeding standard, indirect pollution Excreta.And by pickling and ultrasonication, the metallic compound of indissoluble state in Pig dung and urine can be made to form soluble metal ion, and utilize acoustic cavitation effect to make the pulverizing of pig manure granule, cell wall crack, the heavy metal release of order absorption and parcel is out, the two is used in combination and reaches to purify purpose, makes this cheap raw material of pollution Pig dung and urine apply and is possibly realized in the preparation of soil improvement renovation agent.

Alumen slurry is Alumina by-product when " water seaoning " produces Alumen, through dried gained white powdery solids, its main component is silicon oxide, aluminium oxide and the silicate mineral of water composition, and containing macroelement and various trace elements such as abundant Ca, Mg, Fe, K, S, P, because it has the features such as granule is thin, specific surface area is big, absorption affinity is strong, there is in terms of soil improvement good application prospect.

The above being conjointly employed in the exploitation of soil remediation modifying agent, is simply easily achieved, the development for soil improvement renovation agent opens new way.

Summary of the invention

The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of soil conditioner with power plant's plant ass as primary raw material.

The present invention is achieved by the following technical solutions:

A kind of soil conditioner with power plant's plant ass as primary raw material, is prepared by the raw materials in: power plant plant ass 54-56, sodium molybdate 1.9-2.3, whey powder 3.6-3.9, oil cake 14-16, corn slag 10-11, peel 15-17, carboxymethyl starch sodium 2.3-2.5, pollution Pig dung and urine 42-44, black liquid 13-14,10% salpeter solution 2.7-2.8, Alumen slurry 13-14, water are appropriate.

Specifically comprising the following steps that of the described soil conditioner preparation method with power plant's plant ass as primary raw material

(1) oil cake, corn slag, peel, power plant's plant ass are mixed and added into the water of gross weight 1.5-2 times, and after mixing, in retting fermentation 3-4 week, obtain fermentation residue and fermentation liquid be standby after fermentation material crushes expression separation；

(2) put into after black liquid being dried in calcining furnace, calcine 80-90 minute at 450-470 DEG C, it is mixed and added into gross weight 3-4 times quality water with pollution Pig dung and urine after taking-up, 10% salpeter solution is added after stirring evenly, and compound is carried out supersound process, supersonic frequency is 40kHz, compound is pressed after ultrasonic 100-120 minute 60-80 rev/min and stirs 3 hours, stand 75-85 minute afterwards, after removing upper solution, lower floor's drying materials is pulverized stand-by；

(3) by step 1 gained fermentation residue and step 2 gained material, carboxymethyl starch sodium mixing granulation, spheroidal particle is obtained standby；

(4) Alumen starch comminution is crossed the most afterwards 100-120 mesh sieve, and mix homogeneously by solid-liquid mass ratio 1:4 with 1mol/L sodium hydroxide solution, be again heated to 75-80 DEG C, filter after being incubated 100-120 minute and take out Alumen slurry, clean to neutral with water, dry for standby；

(5) step 1 gained fermentation liquid is mixed with step 4 gained modification Alumen slurry, sodium molybdate, whey powder and other residual componentss, again step 3 gained granule is placed in the roller machine with shower nozzle of the top, during rolling granule, granule is uniformly sprayed by mixed fermentation liquid through shower nozzle, the coated particle oven drying at low temperature at 40-45 DEG C that finally will obtain.

The using method of the present invention is for being embedded at upper soll layer 10-15cm by renovation agent after being turned over by contaminated soil, and every mu of soil uses 80-100kg renovation agent.

The invention have the advantage that

The mixing scrubbing of Pig dung and urine and black liquid uses and soil organic level is greatly improved, and erodable Alumen slurry surface after thermokalite modification Alumen slurry, it is made to become rough porous, surface texture loosens, and specific surface area improves, and strengthens the lattice fixation of its heavy metal ion, serve not only as improvement reparation grain skeleton and there is good stability, and the residuals such as heavy metal-passivated, chemical medicine can be adsorbed, alkaline modification Alumen slurry mixes with the Pig dung and urine of acidifying, also ensure that stablizing of P in soil H-number.The soil-repairing agent of the present invention is with the dead meal plant ass of bio-power plant as primary raw material, it removes noxious substance after fermentation of becoming thoroughly decomposed, the diversity raw material sources of plant ass ensure that the content of its macroelement and trace element simultaneously, alkaline feature in conjunction with plant ass can effectively improve the acid ground that nutrient is barren, and improve the physical arrangement of soil simultaneously, increasing soil organic content, dead meal has been greatly reduced the production cost of modifying agent as the use of major ingredient, has the preferable suitability.

Detailed description of the invention

A kind of soil conditioner with power plant's plant ass as primary raw material, is made up of the raw material of following weight portion (kg): power plant's plant ass 54, sodium molybdate 1.9, whey powder 3.6, oil cake 14, corn slag 10, peel 15, carboxymethyl starch sodium 2.3, pollution Pig dung and urine 42, black liquid 13,10% salpeter solution 2.7, Alumen slurry 13, water are appropriate.

Specifically comprising the following steps that of the described soil conditioner preparation method with power plant's plant ass as primary raw material

(1) oil cake, corn slag, peel, power plant's plant ass are mixed and added into the water of gross weight 1.5 times, and after mixing, retting is fermented 3 weeks, obtains fermentation residue and fermentation liquid is standby after fermentation material crushes expression separation；

(2) put into after black liquid being dried in calcining furnace, calcine 80 minutes at 450 DEG C, it is mixed and added into 3 times of quality water of gross weight with pollution Pig dung and urine after taking-up, 10% salpeter solution is added after stirring evenly, and compound is carried out supersound process, supersonic frequency is 40kHz, is stirred 3 hours by 60 revs/min by compound after ultrasonic 100 minutes, stand 75 minutes afterwards, after removing upper solution, lower floor's drying materials is pulverized stand-by；

(3) by step 1 gained fermentation residue and step 2 gained material, carboxymethyl starch sodium mixing granulation, spheroidal particle is obtained standby；

(4) Alumen starch comminution is crossed the most afterwards 100 mesh sieves, and mix homogeneously by solid-liquid mass ratio 1:4 with 1mol/L sodium hydroxide solution, be again heated to 75 DEG C, filter after being incubated 100 minutes and take out Alumen slurry, clean to neutral with water, dry for standby；

(5) step 1 gained fermentation liquid is mixed with step 4 gained modification Alumen slurry, sodium molybdate, whey powder and other residual componentss, again step 3 gained granule is placed in the roller machine with shower nozzle of the top, during rolling granule, granule is uniformly sprayed by mixed fermentation liquid through shower nozzle, the coated particle oven drying at low temperature at 40 DEG C that finally will obtain.

In order to further illustrate the using value of the present invention, inventor chooses one piece of slant acidity experiment soil and uses the present invention to improve renovation agent to carry out the checking of effect, discovery employed soil improvement renovation agent of the present invention after 60 days, in soil, various heavy content substantially reduces, P in soil H-number is stable at 6.8-7.0, available nutrient constituent content improves, and after 180 days, soil with organic matter level and Cation Exchange Capacity in Soils are all improved, and soil property is effectively improved.

Claims (2)

1. the soil conditioner with power plant's plant ass as primary raw material, it is characterized in that, be prepared by the raw materials in: power plant plant ass 54-56, sodium molybdate 1.9-2.3, whey powder 3.6-3.9, oil cake 14-16, corn slag 10-11, peel 15-17, carboxymethyl starch sodium 2.3-2.5, pollution Pig dung and urine 42-44, black liquid 13-14,10% salpeter solution 2.7-2.8, Alumen slurry 13-14, water are appropriate.

2. according to the soil conditioner with power plant's plant ass as primary raw material described in claims 1, it is characterised in that specifically comprising the following steps that of preparation method

(1) oil cake, corn slag, peel, power plant's plant ass are mixed and added into the water of gross weight 1.5-2 times, and after mixing, in retting fermentation 3-4 week, obtain fermentation residue and fermentation liquid be standby after fermentation material crushes expression separation；

(2) put into after black liquid being dried in calcining furnace, calcine 80-90 minute at 450-470 DEG C, it is mixed and added into gross weight 3-4 times quality water with pollution Pig dung and urine after taking-up, 10% salpeter solution is added after stirring evenly, and compound is carried out supersound process, supersonic frequency is 40kHz, compound is pressed after ultrasonic 100-120 minute 60-80 rev/min and stirs 3 hours, stand 75-85 minute afterwards, after removing upper solution, lower floor's drying materials is pulverized stand-by；

(3) by step 1 gained fermentation residue and step 2 gained material, carboxymethyl starch sodium mixing granulation, spheroidal particle is obtained standby；

(4) Alumen starch comminution is crossed the most afterwards 100-120 mesh sieve, and mix homogeneously by solid-liquid mass ratio 1:4 with 1mol/L sodium hydroxide solution, be again heated to 75-80 DEG C, filter after being incubated 100-120 minute and take out Alumen slurry, clean to neutral with water, dry for standby；

(5) step 1 gained fermentation liquid is mixed with step 4 gained modification Alumen slurry, sodium molybdate, whey powder and other residual componentss, again step 3 gained granule is placed in the roller machine with shower nozzle of the top, during rolling granule, granule is uniformly sprayed by mixed fermentation liquid through shower nozzle, the coated particle oven drying at low temperature at 40-45 DEG C that finally will obtain.