CN105152268A - Treatment method of alkaline pulp waste liquid - Google Patents
Treatment method of alkaline pulp waste liquid Download PDFInfo
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- CN105152268A CN105152268A CN201510703578.8A CN201510703578A CN105152268A CN 105152268 A CN105152268 A CN 105152268A CN 201510703578 A CN201510703578 A CN 201510703578A CN 105152268 A CN105152268 A CN 105152268A
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Abstract
The invention discloses a treatment method of alkaline pulp waste liquid. The method comprises the steps that hydrogen type ion exchange resin or chelating resin package makes full contact with pulp waste liquid, the hydrogen type ion exchange resin or chelating resin package is taken out, washed and immersed through acid, and the hydrogen type ion exchange resin or the chelating resin is obtained by washing resin through water; the steps are repeated till the treated pulp waste liquid is neutral. According to the treatment method of the alkaline pulp waste liquid, the whole process route can make harmless treatment and comprehensive utilization of the alkaline pulp waste liquid truly achieved.
Description
Technical field
The invention belongs to sewage treatment area, be specifically related to a kind for the treatment of process of alkaline pulp waste liquid.
Background technology
Take linters as raw material, refine can obtain a kind of highly purified Mierocrystalline cellulose cotton pulp pool through alkaline cooking, rinsing.Can produce a large amount of alkaline pulp waste liquids in this process, a large amount of waste water overwhelming majority is directly discharged in the sewage reservoir of desert by pipeline, and in pulp waste liquid, the existence of a large amount of alkali to make in sewage reservoir, except growing reed, not having other waterplant.
Pulp waste water is by sources divided into: waste water and the rear waste water of drift before pulp black liquor, drift.Can remain Mierocrystalline cellulose, hemicellulose, the xylogen being dissolved in alkali and other products produced in digestion process in pulp waste water, COD value can reach more than 10000mg/L, causes severe contamination to environment.
Chinese patent literature CN200410024334.9 discloses a kind of cotton pulp black liquor water, wastewater from viscose fiber producing integrated conduct method, cotton pulp black liquor water is entered dirt ashpit by the method after boiler Venturi-water dust scrubber fully contacts with boiler smoke, enter in acidifying equalizing tank after precipitation, and the two bath overflow waters passing into pH≤2 produced in production process of viscose fiber in pond carry out acidifying, control ph is to 5.5-7.5, then in the waste water after acidifying, successively polymerize aluminum chloride is added and polyacrylamide carries out flocculation reaction, secondary sedimentation basins precipitation is entered after flocculation reaction, activated sludge process is utilized to carry out aerobic treatment after solid-liquid separation.
Chinese patent CN200610021621.3 discloses a kind of integrated conduct method of pulp waste water, the method first makes boiler smoke pass through pulp black liquor, the pH value of pulp black liquor is down to 7.0-8.0, then anaerobic biochemical reaction is carried out, adding acid waste water makes its pH be reduced to 2-4, separates out xylogen, again pulp black liquor pH is adjusted to more than 6.0 with alkali waste water, carry out aerobic treatment again after mixing with interruption waste water, add flocculation agent and carry out chemical flocculation process to each index qualified discharge.
Although the existing document such as patent and periodical discloses or reports the integrated conduct method of pulp waste liquid, the equal relative complex of these methods, can only be reduced to qualified discharge by the COD of waste liquid, can not thoroughly process pulp waste liquid.In pulp waste liquid, organic concentration is high, and quantity discharged is large, and biodegradation rate is slow, based on existing technology, can not realize the thorough process of pulp waste liquid.
Summary of the invention
For the defect that prior art exists, the invention discloses a kind of with the processing method of residual alkali in form ion exchange resin or resin removing pulp waste liquid.
It is form ion exchange resin or resin that method provided by the invention uses hydrochloric acid sodium form ion exchange resin or resin to be made the transition, and then uses it for the absorption of pulp waste liquid.This h type resin is spherical adsorbent, is convenient to resin and is separated with pulp waste liquid, can be used for the removal of alkali in pulp waste liquid, also can be used for the removal of alkali in other waste liquid.For the waste liquid obtained, the regional waste liquid that rainfall amount is little sloughs moisture content by the mode of spontaneous evaporation, and the area that rainfall amount is large can adopt warmhouse booth to slough waste liquid moisture content, as little in plant area's area, the mode of forced evaporation can be taked to dewater, and waste liquid also can directly use as fertilizer.
Method provided by the invention comprises:
Form ion exchange resin or resin bag are fully contacted pulp waste liquid, rear taking-up uses acid soak after rinsing, and then uses water rinse resin to obtain form ion exchange resin or resin; Repeat the pulp waste liquid after abovementioned steps to process in neutral.
Preferably, described acid is hydrochloric acid, and its concentration is 0.1-12mol/L.
Preferably, described ion exchange resin is Zeo-karb.
In one embodiment of the invention, the transition being regenerated as sodium form ion exchange resin of described resin: get wet sodium form ion exchange resin to the sorbent material of 40g and to make the transition pond, add 8mL salt acid soak, take out resin after 10min, use clear water washing to neutral.
Described alkalescence slurry pool waste liquid can realize except alkali with contacting of hydrogen ion type resin.In one embodiment of the invention, 40g form ion exchange resin bag is fully contacted 500mL pulp waste liquid, take out and rinse, again drop into pond transition, repeat this operation, until the pulp waste liquid after process is in neutral.In transition pond containing sodium ion solution through spontaneous evaporation, the evaporation of temperature booth or the means such as forced evaporation go out moisture content obtain can be commercially available sodium chloride crystal.
For neutral pulp liquid waste disposal: the regional waste liquid of rainfall amount miniclimate drying sloughs moisture content by the mode of spontaneous evaporation, the area that rainfall amount is large can adopt warmhouse booth to slough waste liquid moisture content, as little in plant area's area, the mode of forced evaporation can be taked to dewater, and waste liquid also can directly use as fertilizer.
Advantage of the present invention comprises:
1, technique is simple, processing cost is low;
2, the ion exchange resin selected or resin are spheroidal particle, are convenient to solid-liquid separation;
3, ion exchange resin speed transition is fast, the form ion exchange resin after transition or resin process alkaline pulp waste liquid speed fast;
4, this treatment process is to the initial alkali content no requirement (NR) of pulp waste liquid;
5, pulp waste liquid can be converted into fertilizer by treatment process, and transition can be converted into commercially available sodium chloride crystal, non-secondary pollution containing sodium ion solution in pond, thoroughly solves waste water pollution problem.
Accompanying drawing explanation
The process flow sheet of the treatment process of Fig. 1, alkaline pulp waste liquid of the present invention.
Embodiment
See Fig. 1, the present invention realizes the process of alkaline pulp waste liquid by following mode.
1, the transition of sodium form ion exchange resin: get wet sodium form ion exchange resin to the sorbent material of 40g and to make the transition pond, add 8mL salt acid soak, remove resin after 10min, use clear water washing to neutral.
2, alkalescence slurry pool waste liquid is except alkali: by step 1) the 40g form ion exchange resin bag that obtains fully contacts 500mL pulp waste liquid, and take out and rinse, again drop into pond transition, repeat part 1 operation, until pulp waste liquid is in neutral.In transition pond containing sodium ion solution through spontaneous evaporation, the evaporation of temperature booth or the means such as forced evaporation go out moisture content obtain can be commercially available sodium chloride crystal.
3, neutral pulp liquid waste disposal: the regional waste liquid of rainfall amount miniclimate drying sloughs moisture content by the mode of spontaneous evaporation, the area that rainfall amount is large can adopt warmhouse booth to slough waste liquid moisture content, as little in plant area's area, the mode of forced evaporation can be taked to dewater, and waste liquid also can directly use as fertilizer.
Set forth the present invention further by the following examples, these embodiments are only presented for purposes of illustration, do not limit the scope of the invention.The test method of unreceipted actual conditions in the following example, conveniently condition is carried out usually.
Hydrochloric acid in following embodiment is common concentrated hydrochloric acid, its concentration is 12M, those skilled in the art also can adjust according to practical situation, described ion exchange resin and the ratio of hydrochloric acid are meeting under the prerequisite that can realize soaking and can adjust voluntarily, the concentration of described hydrochloric acid also as required from Row sum-equal matrix, for same sample, can adopt different acid, its treatment time can slightly difference, but all can realize the process for pulp waste liquid.
In following embodiment for the alkali concn of pulp waste liquid without particular requirement, its concentration distribution is the existing concentration range reported in this area, and each concentration range is all applicable to the technical scheme of the application.
Embodiment one
Under room temperature, take the concentrated hydrochloric acid that 10g ion exchange resin is placed in the 12mol/L of 10mL to soak, take out after 10min and use clear water washing and filtering 3 times, be placed in 50mL pulp waste liquid, take out after 1min, repetitive operation 10 times, by the pulp waste liquid evaporate to dryness of weakly acidic pH after process, obtains the organic mixture in waste liquid.
Embodiment two
Under room temperature, take 30g ion exchange resin and be placed in 30mL12mol/L concentrated hydrochloric acid and soak, take out with clear water washing and filtering 3 times after 10min, be placed in 50mL pulp waste liquid, take out after 1min, repetitive operation 4 times, by the pulp waste liquid evaporate to dryness of weakly acidic pH after process, obtain the organic mixture in waste liquid.
Embodiment three
Under room temperature, take 30g ion exchange resin and be placed in 30mL12mol/L concentrated hydrochloric acid and soak, take out with clear water washing and filtering 2 times after 10min, be placed in 40mL pulp waste liquid, take out after 1min, repetitive operation 3 times, by the pulp waste liquid evaporate to dryness of weakly acidic pH after process, obtain the organic mixture in waste liquid.
Embodiment four
Under room temperature, take the concentrated hydrochloric acid that 20g resin is placed in 20mL12mol/L and soak, after 15min, taking-up clear water rinses to neutral, be placed in 50mL pulp waste liquid, take out after 1min, repetitive operation 6 times, by the pulp waste liquid evaporate to dryness of weakly acidic pH after process, obtain the organic mixture in waste liquid.
Claims (5)
1. a treatment process for alkaline pulp waste liquid, comprising:
Form ion exchange resin or resin bag are fully contacted pulp waste liquid, and rear taking-up uses acid soak after rinsing, and then uses water rinse resin to obtain form ion exchange resin or resin; Repeat the pulp waste liquid after abovementioned steps to process in neutral.
2. method according to claim 1, is characterized in that, described acid is hydrochloric acid, and its concentration is 0.1-12mol/L.
3. method according to claim 1 and 2, is characterized in that, described ion exchange resin is Zeo-karb.
4. method according to claim 1, is characterized in that, the pulp waste liquid of described neutrality is concentrated obtains fertilizer.
5. method according to claim 4, it is characterized in that, neutral pulp waste liquid condensing mode is slough pulp waste liquid moisture content at the regional waste liquid that rainfall amount is little by the mode of spontaneous evaporation, and waste liquid moisture content is sloughed by warmhouse booth in the area that rainfall amount is large, to obtain fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510703578.8A CN105152268A (en) | 2015-10-26 | 2015-10-26 | Treatment method of alkaline pulp waste liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510703578.8A CN105152268A (en) | 2015-10-26 | 2015-10-26 | Treatment method of alkaline pulp waste liquid |
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| CN105152268A true CN105152268A (en) | 2015-12-16 |
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| CN201510703578.8A Pending CN105152268A (en) | 2015-10-26 | 2015-10-26 | Treatment method of alkaline pulp waste liquid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105482018A (en) * | 2015-12-24 | 2016-04-13 | 新疆中泰化学股份有限公司 | Hydrogen type chelating resin and preparation method and regeneration method thereof |
| CN106316002A (en) * | 2016-10-27 | 2017-01-11 | 绍兴丰源节能科技有限公司 | Treatment process for polyester fabric base pretreatment wastewater |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403391A (en) * | 2002-10-16 | 2003-03-19 | 张兴富 | Sewage treating process |
| CN101186404A (en) * | 2007-11-28 | 2008-05-28 | 吴江市方霞企业信息咨询有限公司 | Method for treating pulp sewage |
-
2015
- 2015-10-26 CN CN201510703578.8A patent/CN105152268A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403391A (en) * | 2002-10-16 | 2003-03-19 | 张兴富 | Sewage treating process |
| CN101186404A (en) * | 2007-11-28 | 2008-05-28 | 吴江市方霞企业信息咨询有限公司 | Method for treating pulp sewage |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105482018A (en) * | 2015-12-24 | 2016-04-13 | 新疆中泰化学股份有限公司 | Hydrogen type chelating resin and preparation method and regeneration method thereof |
| CN105482018B (en) * | 2015-12-24 | 2018-06-19 | 新疆中泰化学股份有限公司 | Hydrogen chelating resin and preparation method thereof and regeneration method |
| CN106316002A (en) * | 2016-10-27 | 2017-01-11 | 绍兴丰源节能科技有限公司 | Treatment process for polyester fabric base pretreatment wastewater |
| CN106316002B (en) * | 2016-10-27 | 2019-06-14 | 绍兴丰源节能科技有限公司 | The Processing tecchnics of dacron alkali pre-treatment waste water |
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Application publication date: 20151216 |