Method for preparing organic fertilizer by using aminonitrile waste liquid
An organic fertilizer and aminonitrile technology, which is applied to the preparation of organic fertilizers, organic fertilizers, and the treatment of biological organic parts. Reuse, good social benefits, and solve the effect of difficult disposal
Inactive Publication Date: 2009-03-25
四川省天然气化工研究院
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The invention provides a method for preparing an organic fertilizer by utilizing amino-nitrile waste liquor, which comprises the steps: catalyst and dispersant are added in the associated amino-nitrile waste liquor generated in the preparation of iminodiacetonitrile, aminoacetonitrile, ammonium dinitrile and EDTW, and mixed for reaction at the temperature of 30 to 150 DEG C and the pressure of 0 to 1.0MPa, so as to obtain base fertilizer which is added with biological strains for fermentation of 7 to 15 days at the temperature of 10 to 60 DEG C after nutrient allocation; and then hydrolysis is carried out to the base fertilizer to obtain a raw fertilizer which is carried out with nutrient allocation, pelleting and drying to be prepared into the organic fertilizer. The method can reduce the treatment cost, effectively utilizes the resources of the water liquor, and prepare the organic fertilizer by utilizing the amino-nitrile waste liquor.
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