CN102060397B - Method for treating waste water generated in extraction process of active ingredient of polygonum cuspidatum - Google Patents
Method for treating waste water generated in extraction process of active ingredient of polygonum cuspidatum Download PDFInfo
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- CN102060397B CN102060397B CN 201010548730 CN201010548730A CN102060397B CN 102060397 B CN102060397 B CN 102060397B CN 201010548730 CN201010548730 CN 201010548730 CN 201010548730 A CN201010548730 A CN 201010548730A CN 102060397 B CN102060397 B CN 102060397B
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a method for treating waste water generated in the extraction process of an active ingredient of polygonum cuspidatum. The method comprises the following steps of: adding polyaluminium chloride (PAC) and dicyandiamide-formaldehyde condensation compound to the waste water generated in the extraction process of the active ingredient of the polygonum cuspidatum for flocculation sedimentation and decolorization, carrying out multiple-tower join multistage adsorption on the mixture by a resin column, eluting adsorbed colored organic matters by utilizing a sodium hydroxide solution, adding concentrated sulfuric acid to an eluted solution, adjusting the pH value to be 5 to 6, and standing for a period of time to separate out yellow precipitate, wherein the major components of the yellow precipitate are resveratrol and archen. In the invention, the method of flocculation-decolorization and macroporous resin adsorption are utilized, organic pollutants with high concentrations are removed, useful products in the organic pollutants are recycled simultaneously, and treated waste water can be used as production water, therefore, the final waste water emissions and pollutant burden are greatly reduced, and the invention has positive environmental protection effects.
Description
Technical field
The present invention relates to a kind for the treatment of process of the waste water that giant knotweed extracts active ingredients process is produced.
Background technology
Giant knotweed is a kind of traditional Chinese medicine, has the analgesic therapy of invigorating blood circulation, clearing heat and promoting diuresis, and relieving cough and reducing sputum effect, the effective constituent of giant knotweed mainly is toluylene and anthraquinone analog compound.Especially the trans-resveratrol in the toluylene and glucoside thereof are because its unique medicinal efficacy comes into one's own day by day, and wherein the Schuttgelb in the contained anthraquinone analog compound, chrysophanol etc. are widely used in medicine, chemical industry, food.The at present extraction of these effective constituents mainly is to adopt organic solvent soaking extraction, process residue and cleaning a large amount of high densitys of meeting generation, high-colour intensity wastewater in the extraction equipment process, wherein mainly contain cotton-shaped suspended substance, polysaccharide and Polyphenols, anthraquinones, and a small amount of organic solvent, brown color, the smell is awful, after measured its COD
CrReach between the 10000-15000, colourity is more than 1000, and unprocessed direct discharging will bring very big harm to ecotope.And color wherein is mainly derived from polyphenol contained in the waste water and anthraquinones, such as trans-resveratrol, Schuttgelb, rhubarb yellow etc., it is processed recovery namely can bring economic benefit that obvious environment protection significance is also arranged.
Literature search shows, existing document has no for giant knotweed and extracts the treatment process of factory effluent and to the report of the recycling of effective constituent wherein.
Summary of the invention:
The invention provides the waste water that produces in a kind of simple processing Rhizoma Polygoni Cuspidati extract production process, and reclaim the method for effective constituent wherein.
Technical scheme of the present invention comprises: the waste water that produces in the giant knotweed extracts active ingredients process is put into flocculation sedimentation tank, press 100～300g/m under the high-speed stirring
3The amount of waste water adds polymerize aluminum chloride (PAC) and presses 200～400g/m
3The amount of waste water adds Dyhard RU 100-formaldehyde condensation products discoloring agent, stirs and leaves standstill 1～3 hour in 1～3 minute; To flow in the storage pond through the yellow water in upper strata of flocculation sediment and decolouring processing, then press 1.5m
3The flow of/h pumps into the resin column that the D113 resin is housed, and water outlet enters the resin column that the H-103 resin is housed again, and water outlet drains into storage tank for water of productive use or directly discharging; Resin column absorption is when saturated, and working concentration is coloured organic matter that 2～4% sodium hydroxide solution wash-out wherein adsorbs, and Eluant temperature is 60～70 ℃, and flow velocity is 0.3～1.5BV/h, and elutriant also can use ethanol or acetone; The scarlet elutriant that elutes flows into independent settling tank, add the vitriol oil and regulate pH value to 5～6, namely have yellow mercury oxide to separate out after placing for some time, its main component is trans-resveratrol and Schuttgelb, and the solid that obtains after the filtration can obtain sterling through further separation.
Used polymeric adsorbent can adopt acrylic acid or the like and the vinylbenzene macroporous adsorbent resin that does not contain ionic group, also can adopt the ion exchange resin that contains ionic group sulfonic group or quaternary amine base.Such as domestic D113 resin, D213 resin, CHA-101, H-103, D001 resin, and import Amberlite XDA series plastics, X-5 resin etc.
Use aforesaid method that the waste water of giant knotweed production is processed, can be so that COD
CrAt 13000mg/L, the Vandyke brown waste water of colourity 800～1000 becomes COD
CrLess than 100mg/L, between the colourity 50～100, COD
CrClearance is greater than 99%, and chroma removal rate is more than 90%, and discharge of wastewater meets national standard.Wherein the rate of recovery of Schuttgelb and trans-resveratrol reaches 95～100%, reclaims approximately 3～5 kilograms of effective constituents in the waste water per ton, is mainly Schuttgelb, wherein contains a small amount of trans-resveratrol.Waste water after the processing can continue on for producing or using as the reactor bath water.
The present invention uses flocculation-decolouring; again with the method for macroporous resin adsorption; when removing high concentration organic contaminant; reclaim wherein useful product; waste water energy cover after administering simultaneously is used as water of productive use; greatly reduce final wastewater discharge and pollutant load, have positive environmental protection effect.
Embodiment
The flocculation sedimentation tank that adopts Treatment of Industrial Water to use is according to PAC consumption 200g/m
3Waste water and discoloring agent 300g/m
3The waste water consumption is fed in the flocculation sedimentation tank simultaneously, and the yellow clear water in upper strata flows in the storage pond, then uses 1.5m by pump
3/ h flow is squeezed into diameter 330mm, and long 2200mm is filled with the resin column of 400kg D113 resin, then enters diameter 330mm, and long 3000mm is filled with the resin column of 550kg H-103 resin, and water outlet drains into storage tank, can be for as water of productive use.Detect water outlet COD
CrValue is less than 100, colourity 80, and water white transparency is without obvious smell.Further use UV spectrum, have no phenols and Anthraquinones absorption peak, confirm the validity composition by efficient adsorption.
Resin column accumulative total is processed 20～25m
3Behind the waste water, treatment effect occurs obviously lower, need to carry out manipulation of regeneration to resin column.Treatment process be respectively with 3% sodium hydroxide solution 500L with 0.3m
3/ h pumps into two resin columns, after D113 resin elution liquid flows out to storage tank, it is neutral to approaching to re-use the waste water drip washing resin column that batch processing obtains, and the eluent stream of H-103 resin column adds behind the storage tank and neutralizes about pH=6 with the vitriol oil, the Precipitation yellow powder is reclaimed through behind the Filter Press.
Claims (2)
1. the treatment process to the waste water of giant knotweed extracts active ingredients process generation it is characterized in that the waste water that produces in the giant knotweed extracts active ingredients process is put into flocculation sedimentation tank, presses 100～300g/m under the high-speed stirring
3The amount of waste water adds polymerize aluminum chloride (PAC) and presses 200～400g/m
3The amount of waste water adds Dyhard RU 100-formaldehyde condensation products discoloring agent, stirs and leaves standstill 1～3 hour in 1～3 minute; To flow in the storage pond through the yellow water in upper strata of flocculation sediment and decolouring processing, then press 1.5m
3The flow of/h pumps into the resin column that polymeric adsorbent is housed, and through the multi-tower combined multistage absorption of resin column, water outlet drains into storage tank for water of productive use or directly discharging; Resin column absorption is when saturated, and working concentration is coloured organic matter that 2～4% sodium hydroxide solution or ethanol or acetone wash-out wherein adsorb, and Eluant temperature is 60～70 ℃, and flow velocity is 0.3～1.5BV/h; The scarlet elutriant that elutes flows into independent settling tank, add the vitriol oil and regulate pH value to 5～6, namely have yellow mercury oxide to separate out after placing for some time, its main component is trans-resveratrol and Schuttgelb, and the solid that obtains after the filtration can obtain sterling through further separation.
2. the treatment process of described a kind of waste water that giant knotweed extracts active ingredients process is produced according to claim 1 is characterized in that polymeric adsorbent is domestic D113 resin, the D213 resin, CHA-101, H-103, D001 resin, and import Amberlite XDA series plastics, the X-5 resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010548730 CN102060397B (en) | 2010-11-18 | 2010-11-18 | Method for treating waste water generated in extraction process of active ingredient of polygonum cuspidatum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010548730 CN102060397B (en) | 2010-11-18 | 2010-11-18 | Method for treating waste water generated in extraction process of active ingredient of polygonum cuspidatum |
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| Publication Number | Publication Date |
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| CN102060397A CN102060397A (en) | 2011-05-18 |
| CN102060397B true CN102060397B (en) | 2013-01-02 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795696B (en) * | 2011-05-23 | 2014-04-30 | 南京钢铁股份有限公司 | Coagulant used for advanced treatment of biochemical effluent of coking wastewater |
| CN104261621A (en) * | 2014-09-26 | 2015-01-07 | 四川维尔仕生物科技有限公司 | Resveratrol sewage treatment process |
| CN111943340A (en) * | 2020-06-15 | 2020-11-17 | 中国纺织科学研究院有限公司 | Purification method of Lyocell spinning coagulation bath recovery liquid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101085688A (en) * | 2006-06-08 | 2007-12-12 | 广州格隆环保技术开发有限公司 | Decolorization flocculating agent for printing and dyeing waste water |
| CN101338327A (en) * | 2008-08-13 | 2009-01-07 | 长沙华诚生物科技有限公司 | Process for extracting resveratrol with purity higher than 98 0.000000rom giant knotweed |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101085688A (en) * | 2006-06-08 | 2007-12-12 | 广州格隆环保技术开发有限公司 | Decolorization flocculating agent for printing and dyeing waste water |
| CN101338327A (en) * | 2008-08-13 | 2009-01-07 | 长沙华诚生物科技有限公司 | Process for extracting resveratrol with purity higher than 98 0.000000rom giant knotweed |
Non-Patent Citations (1)
| Title |
|---|
| 张忠国等.絮凝技术在重要提纯中的应用.《化学工业与工程》.2003,第20卷(第6期), * |
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