Method for preparing organic carbon fertilizer from agricultural wastes as raw materials
A technology of agricultural waste and organic carbon, applied in the direction of organic fertilizers, etc., can solve the problems of difficult crop absorption and utilization, high equipment requirements, high energy consumption, etc., and achieve the effect of improving crop quality, low requirements, and low energy consumption
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Embodiment 1
[0027] Corn stalks from Shangqiu area of Henan Province were selected, which contained 38.5% cellulose, 26.8% hemicellulose, 13.6% lignin, 5.3% ash and 15.8% others.
[0028] Use nitric acid from Shenzhen Dingqing Chemical Co., Ltd. 90% nitric acid is configured into a 20% nitric acid solution.
[0029] First crush the corn stalks into small stalks with a length of 2 to 5 cm with a pulverizer, place them in a reaction kettle with a capacity of 500 L, add 350 L of water, and add 175 kg of crushed stalks under stirring conditions. After stirring and dispersing, 35kg of nitric acid with a mass fraction of 4% was added to carry out the digestion reaction. After heating the reaction temperature to 150°C, react for 10 minutes. Putting the reaction solution into a storage tank to cool down, settling, taking the supernatant after separation, evaporating and concentrating until the content of the organic carbon small molecule organic compound is 15%, and then obtaining the organic ...
Embodiment 2
[0031] Corn stalks from Shangqiu area of Henan Province were selected, which contained 38.5% cellulose, 26.8% hemicellulose, 13.6% lignin, 5.3% ash and 15.8% others.
[0032] Use nitric acid and hydrogen peroxide from Shenzhen Dingqing Chemical Co., Ltd.
[0033] First crush the corn stalks into small stalks with a length of 2 to 5 cm with a pulverizer, place them in a reaction kettle with a capacity of 500 L, add 350 L of water, and add 175 kg of crushed stalks under stirring conditions. After stirring and dispersing, add 30kg of nitric acid with a mass fraction of 3% and 5kg of hydrogen peroxide with a mass fraction of 1% for digestion. After heating the reaction temperature to 180°C, react for 5 minutes. Putting the reaction solution into a storage tank to cool down, settling, taking the supernatant after separation, evaporating and concentrating until the content of organic carbon small molecule organic compounds is 5%, and then obtaining an organic carbon fertilizer co...
Embodiment 3
[0035] Corn stalks from Shangqiu area of Henan Province were selected, which contained 38.5% cellulose, 26.8% hemicellulose, 13.6% lignin, 5.3% ash and 15.8% others.
[0036] Use nitric acid and perchloric acid from Shenzhen Dingqing Chemical Co., Ltd.
[0037] First crush the corn stalks into small stalks with a length of 2 to 5 cm with a pulverizer, place them in a reaction kettle with a capacity of 500 L, add 350 L of water, and add 175 kg of crushed stalks under stirring conditions. After stirring and dispersing, add 20kg of nitric acid with a mass fraction of 6% and 15kg of perchloric acid with a mass fraction of 3% for digestion. After heating the reaction temperature to 80°C, react for 30 minutes. Putting the reaction solution into a storage tank to cool down, settling, taking the supernatant after separation, evaporating and concentrating until the organic carbon small molecular organic compound content is 25%, and then obtaining the organic carbon fertilizer contai...
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