Liquid organic fertilizer for reducing soil heavy metal pollution and preparation method thereof
A heavy metal and organic fertilizer technology, applied in the direction of organic fertilizer, liquid fertilizer, chemical fertilizer treatment and control, etc., can solve the problems of low price of heavy metal pollution remediation, decline in soil fertility, damage to soil structure, etc., to increase the chelation effect and increase soil organic matter. , the effect of improving soil
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[0025] Example 1
[0026] A liquid organic fertilizer for reducing soil heavy metal pollution, comprising the following raw materials by mass: 80 parts of cow dung, 50 parts of bagasse, 40 parts of cassava industrial sludge, 20 parts of fish processing waste, 20 parts of waste edible oil, and microorganisms. 3 parts of preparation, 10 parts of biochar, 5 parts of chelating agent, 10 parts of potassium dihydrogen phosphate, 10 parts of disodium hydrogen phosphate, 1000 parts of water;
[0027] The preparation method of the liquid organic fertilizer for reducing heavy metal pollution in soil comprises the following steps:
[0028] Step 1: Take the fish processing waste, bagasse, cassava industrial sludge and microbial preparation in parts by mass, and after mixing evenly, transfer to the fermentation tank, keep the temperature of the fermentation tank at 25 ° C, the humidity at 75%, and aerobic fermentation. 5 days;
[0029] Step 2, adding the waste edible oil and cow dung in ...
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[0031] Example 2
[0032] A liquid organic fertilizer for reducing soil heavy metal pollution, comprising the following raw materials by mass: 150 parts of cow dung, 80 parts of bagasse, 60 parts of cassava industrial sludge, 30 parts of fish processing waste, 50 parts of waste edible oil, and microorganisms. 8 parts of preparation, 30 parts of biochar, 8 parts of chelating agent, 30 parts of potassium dihydrogen phosphate, 30 parts of disodium hydrogen phosphate, 3000 parts of water;
[0033] The preparation method of the liquid organic fertilizer for reducing heavy metal pollution in soil comprises the following steps:
[0034] Step 1: Take the fish processing waste, bagasse, cassava industrial sludge and microbial preparations in parts by mass, mix them evenly, and transfer them to the fermentation tank. 15 days;
[0035] Step 2, adding the waste edible oil and cow dung in parts by mass to the fermenter, heating the fermenter to 60° C., the humidity being 85%, aerobic fer...
Example Embodiment
[0037] Example 3
[0038] A liquid organic fertilizer for reducing soil heavy metal pollution, comprising the following raw materials by mass: 110 parts of cow dung, 60 parts of bagasse, 50 parts of cassava industrial sludge, 25 parts of fish processing waste, 35 parts of waste edible oil, and microorganisms. 5 parts of preparation, 20 parts of biochar, 7 parts of chelating agent, 20 parts of potassium dihydrogen phosphate, 20 parts of disodium hydrogen phosphate, 2000 parts of water;
[0039] The preparation method of the liquid organic fertilizer for reducing heavy metal pollution in soil comprises the following steps:
[0040] Step 1: Take the fish processing waste, bagasse, cassava industrial sludge and microbial preparations in parts by mass, mix them evenly, and transfer them to the fermentation tank. 10 days;
[0041] Step 2, adding the waste edible oil and cow dung in mass fractions into the fermenter, heating the fermenter to 45°C, the humidity is 80%, aerobic ferment...
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