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Method for producing humate from base waste liquid

A technology of humate and alkali waste liquid, which is applied in application, organic fertilizer, climate change adaptation, etc., can solve the problems of high extraction cost, slow extraction speed, environmental pollution, etc., and achieve increased resource utilization. The method is simple and practical, The effect of reducing sewage costs

Active Publication Date: 2012-02-01
祁长喜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional humate extraction method is relatively complicated, the extraction rate is low, the extraction cost is high, the extraction speed is slow, and the environment is polluted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: a kind of method of producing humate with alkali waste liquid, it is made of following technological process to collect the waste water containing soluble alkali produced in the process of collecting alkali factory or electrolyzing salt water, cool and dry and concentrate, and make the waste water containing soluble alkali Alkali waste liquid with an alkali concentration of 18-22%; put weathered coal, lignite, or peat into a pulverizer, and crush it into particles with a particle size of 0.2-0.5 mm to make coal powder; according to coal powder: alkali waste liquid = 1: 8~10 raw material weight ratio, mix the above raw materials into the reaction kettle, stir evenly, start heating to 89°C~91°C, stop heating after heating for 1~1.5 hours, let it stand for precipitation, and wait for the reaction kettle After the reactants in the reaction mixture were statically stratified, the reaction precipitate and the reaction supernatant were obtained; the reaction super...

Embodiment 2

[0012] Embodiment 2: Collect the waste water containing soluble alkali produced in the alkali factory or the process of electrolyzing salt water, cool and concentrate, and make alkali waste liquid with alkali concentration of 18-22%.

[0013] Add 200Kg of weathered coal into a pulverizer and crush it into granule powder with a particle size of 0.3mm. Mix 200Kg of weathered coal powder and 1600Kg of alkali waste liquid containing 22% sodium hydroxide concentration into the reaction kettle, stir evenly, start heating to 90°C, stop heating after 1.2 hours, let it stand for precipitation, and wait for the reaction kettle After static layering of the reactants, the reaction precipitate and the reaction supernatant were obtained. Take the supernatant, slowly add hydrochloric acid solution to the reaction supernatant, mix well until the pH value of the supernatant drops to 2, let it settle for 8-12 hours, take the precipitate of the supernatant and dry it , to obtain a finished prod...

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Abstract

The invention provides a method for producing fertilizer from base waste liquid. The method comprises the following processes: collecting soluble-base-containing wastewater generated in a base factory or saline solution electrolysis process, airing and concentrating to obtain base waste liquid with a base concentration of 18-22%; processing weathered coal or lignite or peat into coal powder by using a pulverizer, mixing the coal powder and the base waste liquid according to a weight ratio of 1:(8-10) and adding the mixture to a reaction kettle, uniformly stirring, heating, standing and precipitating, and thus obtaining the reaction precipitate and reaction supernatant after the reaction materials in the reaction kettle are still and precipitate; adding hydrochloric acid solution to the reaction supernatant, and drying the supernatant precipitate to obtain humic acid; and placing the reaction precipitate to a precipitating pond, uniformly mixing the reaction precipitate and humic acid according to a weight ratio of reaction precipitate to humic acid being 1:(0.5-0.8), standing for 2-3 hours, and spraying and granulating the mixed material to obtain a finished product used as fertilizer. The method has the advantages that wastewater can be recycled, environmental pollution is avoided, the process is simple and practical, the extraction cost is low, therefore, the method can be popularized and used.

Description

technical field [0001] The invention belongs to the technical field of environmental protection regeneration and utilization of industrial waste water, and relates to a method for producing humate from alkali waste liquid. Background technique [0002] my country is a large agricultural country, which consumes a lot of chemical fertilizers every year, but the increase in the use of chemical fertilizers is not proportional to the increase in crop production. Often, the increase in the use of chemical fertilizers will cause land compaction and a decline in crop production. decline. According to side tests, the utilization rate of chemical fertilizers in my country is only about 35%, which is lower than 55% in developed countries. Humate and its products have many uses. In terms of agriculture, humate series fertilizers (sodium humate, potassium humate, ammonium humate, etc.) can improve medium and low-yield soils, fertilize high-yield soils, and have long fertilizer effects. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08H99/00C05F15/00C05F11/02C05F7/00
CPCY02A40/20
Inventor 祁长喜
Owner 祁长喜
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