CN102336915B - Method for producing humate from base alkaline waste liquid - Google Patents

Method for producing humate from base alkaline waste liquid Download PDF

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Publication number
CN102336915B
CN102336915B CN2011102300609A CN201110230060A CN102336915B CN 102336915 B CN102336915 B CN 102336915B CN 2011102300609 A CN2011102300609 A CN 2011102300609A CN 201110230060 A CN201110230060 A CN 201110230060A CN 102336915 B CN102336915 B CN 102336915B
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reaction
alkali
precipitate
supernatant liquor
base
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CN102336915A (en
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祁长喜
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

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

A kind of method of producing fertilizer with alkali wasteliquid
Technical field
The invention belongs to the environmental friendly regenerated technical field of utilizing of trade effluent, relate to a kind of method that alkali wasteliquid is produced humic acids.
Background technology
China is large agricultural country, expends a large amount of chemical fertilizer every year, but the volume increase of the increase of fertilizer application amount and farm crop is disproportionate, the often increase of fertilizer application amount, cause on the contrary the hardening soil, the decline of crop yield, this is, fertilizer efficiency decline low due to chemical fertilizer utilization ratio.Trying China's chemical fertilizer utilization ratio according to side is only 35% left and right, lower than 55% of developed country.Humate and goods thereof have multiple use.Agriculturally, humic acid salts series fertilizer (Sodium salts humic acids, potassium humate, ammonium humate etc.) can be improved mid and low yield soils, the getting fat high production soil, and fertilizer efficiency is long.Utilization ratio is high, improves the soil rational performance, has low cost, full nutrition, long-acting type and anti-pollution, the characteristics such as the ecotype.In industrial aspect, Sodium salts humic acids is used for ceramic material adjustment, low pressure boiler, the locomotive boiler antiscale, sulfonated humic acid sodium is used for cement water reducing agent, and the humic acids goods are also as the oil drilling slurry treatment agent, in addition, Sodium salts humic acids also is widely used in briquetting, foundry sand binding agent etc.Humic acids is a kind of natural organic high molecular compound, is that a kind of multi-functional chemical materials has industry widely and agricultural use, is used in a large number the aspects such as forestry, animal husbandry and medicine.Traditional humate extracting method is comparatively complicated, and extraction yield is low, and extraction cost is high, and extraction rate is slow, contaminate environment.On the other hand, can produce a large amount of alkali waste waters that contains at the Industrial processes product, as the waste water that contains water soluble alkali that produces in alkali factory or electrolytic saltwater process, contain alkali waste water and enter contaminate environment in rivers.
Summary of the invention
The purpose of this invention is to provide a kind of method of producing fertilizer with alkali wasteliquid, make it have the waste water reclamation utilization, free from environmental pollution, features simple and practical process, the advantage that extraction cost is low.For this reason, a kind of method with producing humate from base waste liquid, it is to be made of following technological process:
(1), collect the waste water that contains water soluble alkali that produces in alkali factory or electrolytic saltwater process, air dry is concentrated, makes the alkali wasteliquid that contains alkali concn 18~22%;
(2), with weathered coal, or brown coal, or mud coal joins in pulverizer, is broken into the particle that granularity is 0.2~0.5mm, makes coal dust;
(3), press coal dust: the raw material weight proportioning of alkali wasteliquid=1: 8~10, above-mentioned raw materials is mixed to join in reactor, stir, begin to be heated to 89 ℃~91 ℃, heat stopped heating after 1~1.5 hour, staticly settle, after the reactant static layering in the question response still, get reaction precipitation thing and reaction supernatant liquor;
(4), negate answers supernatant liquor, slowly adds hydrochloric acid soln in the reaction supernatant liquor, mixes, until the pH value of this supernatant liquor is down to 2, staticly settles 8~12 hours, gets this supernatant liquor throw out oven dry, gets humic acids;
(5), negate answers throw out, is placed in settling tank, presses the reaction precipitation thing: the raw material weight proportioning of humic acids=1: 0.5~0.8, above-mentioned raw materials is mixed, standing 2~3 hours, compound is carried out spray granulating, must can be used as the finished product of fertilizer.The waste water of described water soluble alkali is the waste water that contains sodium hydroxide or potassium hydroxide or hydrated barta.Aforesaid method has been realized purpose of the present invention.
Advantage of the present invention is the waste water reclamation utilization, and is free from environmental pollution, decrease the effluent charge use, also have method simple practical, extraction cost is low, is only 70% of traditional method cost.There is no the wasting of resources in leaching process of the present invention, production process does not produce solid waste, and reactant all has utilization, increases resource utilization.
Embodiment
The present invention adopts enamel reaction still, vertical response pot all can.Described dryer is roller dryer, and dryer is bought or self-control all can.
Embodiment 1: a kind of method of producing fertilizer with alkali wasteliquid, and it is to be made of following technological process: collect the waste water that contains water soluble alkali that produces in alkali factory or electrolytic saltwater process, air dry is concentrated, makes the alkali wasteliquid that contains alkali concn 18~22%; With weathered coal, or brown coal, or mud coal joins in pulverizer, is broken into the particle that granularity is 0.2~0.5mm, makes coal dust; Press coal dust: the raw material weight proportioning of alkali wasteliquid=1: 8~10, above-mentioned raw materials is mixed to join in reactor, stir, begin to be heated to 89 ℃~91 ℃, heat stopped heating after 1~1.5 hour, staticly settle, after the reactant static layering in the question response still, get reaction precipitation thing and reaction supernatant liquor; Supernatant liquor is answered in negate, slowly adds hydrochloric acid soln in the reaction supernatant liquor, mixes, until the pH value of this supernatant liquor is down to 2, staticly settles 8~12 hours, gets the throw out oven dry of this supernatant liquor, gets humic acids.Throw out is answered in negate, is placed in settling tank, presses the reaction precipitation thing: the raw material weight proportioning of humic acids=1: 0.5~0.8, above-mentioned raw materials is mixed, and standing 2~3 hours, compound is carried out spray granulating, must can be used as the finished product of fertilizer.
Embodiment 2: collect the waste water that contains water soluble alkali that produces in alkali factory or electrolytic saltwater process, air dry is concentrated, makes the alkali wasteliquid that contains alkali concn 18~22%.
Weathered coal 200Kg is joined be broken into the granular powder that granularity is 0.3mm in pulverizer.With weathering coal dust 200Kg, be mixed to join in reactor with the alkali wasteliquid that contains sodium hydroxide concentration 22% of 1600Kg, stir, begin to be heated to 90 ℃, heat stopped heating after 1.2 hours, staticly settle, after reactant static layering in the question response still, get reaction precipitation thing and reaction supernatant liquor.Get the reaction clear liquid, slowly add hydrochloric acid soln in the reaction supernatant liquor, mix, until the pH value of this supernatant liquor is down to 2, staticly settle 8~12 hours, get the throw out oven dry of this supernatant liquor, get humic acids; Containing humic acids purity according to survey is 95~98%.Throw out is answered in negate, be placed in settling tank, press the reaction precipitation thing: the raw material weight proportioning of humic acids=1: 0.55, above-mentioned raw materials is mixed, standing 2~3 hours, compound is carried out spray granulating, must can be used as the finished product of fertilizer, this finished product according to survey contain humic acids 50~60%, contain Sodium salts humic acids 2~3% and other phosphorus of 1~3%, the trace element such as potassium, calcium.
In a word, the inventive method has the waste water reclamation utilization, and is free from environmental pollution, features simple and practical process, and the advantage that extraction cost is low can be promoted the use of.

Claims (2)

1. method of producing fertilizer with alkali wasteliquid is characterized in that it is to be made of following technological process:
(1), collect the waste water that contains water soluble alkali that produces in alkali factory or electrolytic saltwater process, air dry is concentrated, makes the alkali wasteliquid that contains alkali concn 18~22%;
(2), with weathered coal, or brown coal, or mud coal joins in pulverizer, is broken into the particle that granularity is 0.2~0.5mm, makes coal dust;
(3), press coal dust: the raw material weight proportioning of alkali wasteliquid=1: 8~10, above-mentioned raw materials is mixed to join in reactor, stir, begin to be heated to 89 ℃~91 ℃, heat stopped heating after 1~1.5 hour, staticly settle, after the reactant static layering in the question response still, get reaction precipitation thing and reaction supernatant liquor;
(4), negate answers supernatant liquor, slowly adds hydrochloric acid soln in the reaction supernatant liquor, mixes, until the pH value of this supernatant liquor is down to 2, staticly settles 8~12 hours, gets this supernatant liquor throw out oven dry, gets humic acids;
(5), negate answers throw out, is placed in settling tank, presses the reaction precipitation thing: the raw material weight proportioning of humic acids=1: 0.5~0.8, above-mentioned raw materials is mixed, standing 2~3 hours, compound is carried out spray granulating, must can be used as the finished product of fertilizer.
2. a kind of method of producing fertilizer with alkali wasteliquid according to claim 1, it is characterized in that: the waste water of described water soluble alkali is the waste water that contains sodium hydroxide or potassium hydroxide or hydrated barta.
CN2011102300609A 2011-08-12 2011-08-12 Method for producing humate from base alkaline waste liquid Active CN102336915B (en)

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Publication number Priority date Publication date Assignee Title
CN102584498B (en) * 2012-03-28 2013-10-23 中国农业科学院农业资源与农业区划研究所 Humic acid urea and preparing method thereof
CN102674970A (en) * 2012-05-28 2012-09-19 昆明学院 Method for preparing water-soluble humic acid nitrogen and potassium fertilizer by using lignite
CN102747381A (en) * 2012-07-03 2012-10-24 大连理工大学 Method for preparing humic acid through lignite electrochemical oxidation
CN102766171B (en) * 2012-07-31 2014-07-30 中南大学 Modified humic acid and application thereof in reducing roasting by manganese oxide ore pyrogenic method
CN103173236B (en) * 2012-11-30 2014-04-09 内蒙古科技大学 Method for preparing biomass type coal adhesive from boghead coal and co-producing biomass type coal and organic fertilizer
CN103333347B (en) * 2013-07-08 2016-01-20 乌鲁木齐市华泰隆化学助剂有限公司 Potassium humate and preparation method thereof
CN103819689A (en) * 2014-02-12 2014-05-28 石嘴山市惠农区大明化工有限公司 Method for producing sodium humate by coal
CN103951834A (en) * 2014-04-21 2014-07-30 许修海 Production technology process for humate
CN105801231A (en) * 2014-12-30 2016-07-27 张睿育 Method for producing basal fertilizer by using poultry feather as base material
CN105272739A (en) * 2015-10-13 2016-01-27 辽宁嘉吉作物营养有限公司 Humic acid chelated medium-trace element fertilizer and preparation method thereof
CN107056517A (en) * 2017-01-09 2017-08-18 闾传道 A kind of potassium chloride particle fertilizer of high content of humic acid high concentration
CN109912365A (en) * 2017-12-13 2019-06-21 赵月平 A kind of production method of fulvo acid
CN108314574A (en) * 2018-01-08 2018-07-24 赵月平 It is a kind of to utilize the production method that water-soluble humic acid fertilizer is produced with the waste water of bean product
CN108314573A (en) * 2018-01-08 2018-07-24 赵月平 A kind of production method for producing water-soluble humic acid fertilizer using extracting apple juice waste water
CN109111578A (en) * 2018-08-13 2019-01-01 周海东 Preparation method, application method and the application of humic acid water-soluble liquid
CN109627456A (en) * 2018-12-18 2019-04-16 大连理工大学 A kind of method of fulvic acid content in raising lignite

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US5656060A (en) * 1996-03-22 1997-08-12 Townley; R. John Method of producing substantially dust-free particulates
JP2005089615A (en) * 2003-09-18 2005-04-07 Abe Shoji:Kk Method for producing humic acid liquid
CN1271011C (en) * 2005-02-06 2006-08-23 方宁 Technology for producing green ecological fertilizer using coal humic acid
CN100402141C (en) * 2006-01-25 2008-07-16 中国科学院沈阳应用生态研究所 Preparation method of modified turf adsorbent

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