Method for preparing compound amino acid organic liquid fertilizer
A compound amino acid and organic liquid fertilizer technology, which is applied in chemical instruments and methods, fertilization devices, fertilizer mixtures, etc., can solve the problems of large-scale popularization and application of difficult amino acid liquid fertilizers, high cost of amino acid liquid fertilizers, and complex production processes. Solve the problem of difficult wastewater treatment, wide process applicability, and good product quality
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Embodiment 1
[0027] A. The chemical composition is N 6.03%, SO 3 15.26%, organic matter 5.18%, the lysine waste liquid of Chuanhua Ajinomoto Co., Ltd. was filtered with a conventional vacuum filter, and the filter residue and filtrate were separated;
[0028] B, 5000 grams of above-mentioned filtrates are added in conventional evaporator, under the positive pressure condition that pressure is 0.05MPa, carry out evaporation and concentration, evaporate moisture content 1350 grams, obtain 3650 grams of concentrates;
[0029] C, sending the above-mentioned concentrated solution into a conventional vacuum evaporation crystallizer, and carrying out a vacuum evaporation crystallization under the negative pressure condition of -0.045MPa in a pressure, steaming out 1250 grams of water content, and obtaining 2400 grams of a primary crystallization mixed slurry;
[0030] D, 2400 grams of the above-mentioned primary crystallization mixed slurry are sent in the conventional centrifuge to carry out ce...
Embodiment 2
[0035] A. The chemical composition is N 6.03%, SO 3 15.26%, organic matter 5.18%, the lysine waste liquid of Chuanhua Ajinomoto Co., Ltd. was filtered with a conventional vacuum filter, and the filter residue and filtrate were separated;
[0036] B, 5000 grams of above-mentioned filtrates are added in conventional evaporator, carry out evaporation concentration under normal pressure condition, evaporate moisture content 1400 grams, obtain 3600 grams of concentrates;
[0037] C, above-mentioned concentrated solution is sent in the conventional evaporative crystallizer, carries out evaporative crystallization once under normal pressure condition, evaporates moisture content 1150 grams, obtains 2450 grams of primary crystallization mixed slurry;
[0038] D, 2450 grams of the above-mentioned primary crystallization mixed slurry are sent to a conventional centrifuge for centrifugal liquid-solid separation, and 890 grams of sulfate and 1560 grams of primary mother liquor are isolat...
Embodiment 3
[0043]A. The chemical composition is N 6.03%, SO 3 15.26%, organic matter 5.18%, the lysine waste liquid of Chuanhua Ajinomoto Co., Ltd. was filtered with a conventional vacuum filter, and the filter residue and filtrate were separated;
[0044] B, 5000 grams of above-mentioned filtrates are added in conventional evaporator, under the positive pressure condition that pressure is 0.03MPa, carry out evaporation and concentration, evaporate moisture content 1350 grams, obtain 3650 grams of concentrates;
[0045] C. Send the above-mentioned concentrated solution into a conventional vacuum evaporation crystallizer, and carry out a vacuum evaporation crystallization under the negative pressure condition of -0.03MPa, steam out 1250 grams of water, and obtain 2400 grams of primary crystallization mixed slurry;
[0046] D, 2400 grams of the above-mentioned primary crystallization mixed slurry are sent to a conventional centrifuge for centrifugal liquid-solid separation, and 905 grams ...
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