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Preparation method of biological soil conditioner

A technology for biological soil improvement and preparation steps is applied in the field of preparation of biological soil conditioners, which can solve problems such as secondary pollution, and achieve the effects of reducing pollution, readily available raw materials, and cheap raw materials

Inactive Publication Date: 2017-03-29
吴迪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the defect that the common soil improvers can only improve soil physical and chemical properties in a short time, and most of the soil improvers are mainly synthesized by various chemical substances, which will cause secondary pollution when left in the soil, A method for preparing a biological soil conditioner is provided. In the present invention, the sludge with a high water content is firstly added with an auxiliary agent and then aerated to obtain a sludge mixture, and then waste fungus chaff, corn stalks, etc. are used to form the sludge mixture. Composting treatment, pretreatment of pig bones and pyrolysis to obtain biochar, and finally crushing bentonite, etc., and mixing and drying with compost, etc., to obtain biological soil improver

Method used

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Examples

Experimental program
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Effect test

example 1

[0017] First, weigh 1 kg of sludge with a water content of 80% and add it to the treatment tank, add 5 g of sodium hydroxide, stir for 20 minutes, then add 100 mL of 10% sodium persulfate solution, and start aeration from the bottom of the sludge. Gas for 1 day to obtain a sludge mixture; weigh 2kg of fungus chaff, 3kg of corn stalks and 500g of vermicompost and add them to a pulverizer for crushing, pass through a 50-mesh sieve to obtain a mixture, put the mixture in a mixer, and then add the above sludge The mixture was stirred for 20 minutes. After the stirring was completed, it was placed in a ventilated place for composting for 10 days, and the compost was turned every 2 days. While turning the compost every time, 400mL of deionized water was sprinkled on the compost. After the ventilation composting was completed, Collect the compost for subsequent use; take 1kg of fresh pork bones, manually remove the residual meat on its surface, and wash it with deionized water, then p...

example 2

[0020]First, weigh 3 kg of sludge with a water content of 90% and add it to the treatment tank, add 8 g of sodium hydroxide, stir for 30 minutes, then add 200 mL of 10% sodium persulfate solution, and start aeration from the bottom of the sludge. Gas for 2 days to obtain a sludge mixture; weigh 3kg of fungus chaff, 4kg of corn stalks and 600g of vermicompost and add them to a pulverizer for crushing, pass through a 60-mesh sieve to obtain a mixture, put the mixture in a mixer, and then add the above sludge The mixture was stirred for 30 minutes. After the stirring was completed, it was placed in a ventilated place for composting for 15 days, and the compost was turned every 3 days. While turning the compost each time, 500 mL of deionized water was sprinkled on the compost. After the ventilation composting was completed, Collect the compost for subsequent use; take 2kg of fresh pig bones, manually remove the residual meat on its surface, and wash it with deionized water, put it ...

example 3

[0023] First weigh 2kg of sludge with a water content of 85% and add it to the treatment tank, add 6g of sodium hydroxide, stir for 25 minutes, then add 150mL of 10% sodium persulfate solution, and start aeration from the bottom of the sludge. Gas for 1.5 days to obtain a sludge mixture; weigh 2.5kg of fungus chaff, 3.5kg of corn stalks and 550g of vermicompost and add them to a pulverizer for crushing, pass through a 55-mesh sieve to obtain a mixture, put the mixture in a mixer, and then add the above Stir the sludge mixture for 25 minutes. After the stirring is completed, put it in a ventilated place for composting for 13 days, and turn it every 2.5 days. Sprinkle 450mL of deionized water on the compost every time you turn it, and the ventilation composting is over. Finally, collect the compost and set it aside; take 1.5kg of fresh pig bones, manually remove the residual meat on the surface, wash it with deionized water, put it in a pulverizer and grind it, pass through a 90-...

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Abstract

The invention relates to a preparation method of a biological soil conditioner, belonging to the field of soil conditioner preparation. The preparation method comprises the following steps: adding an auxiliary into sludge with high water content, and performing aeration treatment to obtain a sludge mixture; performing composting treatment of the waste mushroom bran, corn straws and the like and the sludge mixture; performing pretreatment and pyrolysis on pig bones to obtain biochar; and finally pulverizing bentonite and the like and then mixing with the compost and the like and drying to obtain the biological soil conditioner. According to the preparation method, the prepared conditioner realizes a long-term soil conditioning effect and can supplement various nutrient elements short in soil and adsorb and fix heavy metal ions in soil; moreover, the soil conditioner can regulate the soil tightness, reduce the soil bulk density, increase the soil organic matters and improve the soil porosity; and meanwhile, the preparation method provided by the invention is easy to operate, the raw materials are cheap and easily available, and the waste can be effectively utilized to alleviate environmental pollution.

Description

technical field [0001] The invention relates to a preparation method of a biological soil improver, belonging to the field of soil improver preparation. Background technique [0002] In my country, a large part of the arable land is land under stress pollution. These arable lands are subjected to environmental pressure caused by external abiotic factors to varying degrees, mainly including drought, salinity and heavy metals. Planting crops on such stress-contaminated land will reduce the yield of crops, and even cause large-scale death or failure of crops in severe cases, causing serious economic losses to farmers. In order to alleviate the environmental pressure brought by abiotic factors to arable land, amendments are usually added to the soil in the prior art. Traditional soil conditioners only adjust the pH value and water content of the soil accordingly and conduct water diversion irrigation. This method can improve the soil in a short period of time, but in the long r...

Claims

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Application Information

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IPC IPC(8): C09K17/40C05G3/04C05G3/00C05F17/00C05G3/80
CPCC05D3/02C05F17/40C05G3/00C05G3/80C09K17/40C09K2101/00C05D9/00C05F3/00C05F5/00C05F11/00Y02W30/40
Inventor 吴迪孟中立
Owner 吴迪
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