CN101700923B - Method for removing environment hormone dimethyl phthalate in water body - Google Patents
Method for removing environment hormone dimethyl phthalate in water body Download PDFInfo
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- CN101700923B CN101700923B CN2009101915007A CN200910191500A CN101700923B CN 101700923 B CN101700923 B CN 101700923B CN 2009101915007 A CN2009101915007 A CN 2009101915007A CN 200910191500 A CN200910191500 A CN 200910191500A CN 101700923 B CN101700923 B CN 101700923B
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Abstract
The invention provides a method for removing environment hormone dimethyl phthalate in water body; the treated water is mainly used for water supplying in towns and cities and being stored in water plants; the method comprises the following steps: (1) flocculating agent-poly-dimethyl diallyl ammonium chloride is added in a reactor with source water, and the source water and the flocculating agent are completely stirred uniformly. (2) The source water treated in the step (1) is placed still for a while, and then the source water is discharged for subsequent treatment after carrying out flocculating settling. In the invention, the poly-dimethyl diallyl ammonium chloride is used as the flocculating agent to adsorb dimethyl phthalate in source water, and then the content of the dimethyl phthalate is effectively reduced through flocculating settling, so as to greatly improve the municipal engineering water supplying safety and hygienic quality. The method has the characteristics of convenient operation, low treating cost, easily-controlled conditions and stable treatment effect and can remove more than 60 percent of dimethyl phthalate organic matters in source water.
Description
Technical field
The invention relates to the method for removing environmental hormone dimethyl phthalate in the source water.Be mainly used in the advanced treatment of urban water supply water quality, effectively reduce the method for the content of dimethyl phthalate in the source water.
Background technology
In recent years; Development along with industrial and agricultural production; Especially organic synthesis chemical industry, petrochemical complex, agricultural chemicals and agrochemical industry develops rapidly; Increasing organic pollutant gets into water body, has caused the rapid deterioration of drinking water quality, and the drinking water safety problem has become one of principal element that threatens human health.A lot of lakes, river, reservoir as urban water resource; The pollution of waterhead phenomenon is serious, and the persistence hazardous and noxious substances constantly finds, dimethyl phthalate is one of most important organic micro-pollutant wherein; Because dimethyl phthalate content in water body is low; But harm is big, and therefore, phthalate (PAEs) compound purification techniques causes the attention of countries in the world.
Dimethyl phthalate is a kind of as environmental hormone class material, can disturb organism internal secretion mechanism originally, causes the human endocrine imbalance, possibly jeopardize the reproduction function or cause malignant tumour, is having a strong impact on human existence and procreation.And have characteristics of biological accumulation property, lasting toxicity, difficult natural degradation.It mainly is widely used as a kind of property-modifying additive of plastics, to increase plastic plasticity and intensity; Also being used to farm chemical carrier, coating, dyestuff, makeup, lubricant or stain remover etc., is a kind of global environmental pollutant.
At present, urban water resource has received the generally pollution of phthalate.If do not adopt an effective measure it is not studied and controls, will be to healthy formation grave danger of people.The removal of endocrine disrupter is extremely important for safety of drinking water property, presses for effective removal technology of endocrine disrupter in the research source water.And the artificial degradation method of dimethyl phthalate mainly contains active carbon adsorption, biological degradation method and advanced oxidation processes etc.But all there is the loaded down with trivial details and high problem of processing cost of treatment process in these treatment processs.Especially the procedure of removing dimethyl phthalate in the water body is complicated, invests bigger.As effectively the acquisition of bacterium is difficult in the biological degradation method, the advanced oxidation processes investment is bigger, the difficult control of condition, complex operation.And; Because a variety of causes; Current China not the dimethyl phthalate in the tap water as a controlling index, but the raising of Along with people's standard of living and water technology is understood and increasingly considered that organism is to the harm of human body in the water body; And dimethyl phthalate can cause the human endocrine imbalance, will be paid the utmost attention to.
Summary of the invention
To dimethyl phthalate treatment process in the existing artificial degraded water body; There is the loaded down with trivial details and high problem of processing cost of treatment process, the purpose of this invention is to provide the method for environmental hormone dimethyl phthalate in the removal source water that a kind of operating procedure is easy, processing cost is low, condition is controlled easily.
The objective of the invention is to realize like this: a kind of method of removing environmental hormone dimethyl phthalate in the source water, it is characterized in that, comprise the steps:
(1) in the reactor drum that source water is housed, adds the flocculation agent Poly Dimethyl Diallyl Ammonium Chloride, simultaneously, source water and said flocculation agent are stirred, make flocculation agent performance best effect;
(2) source water of step (1) being handled leaves standstill 3-10h; Reduce through the concentration of flocculating settling effect, discharge and supply the subsequent disposal use dimethyl phthalate.
Further, the concentration of the dosage of said flocculation agent in water is 0.10-20mg/L.
Further, in the said step (1), in the said step (1); Adopt earlier and stir fast; Stir at a slow speed: the speed with 250-300r/min stirred 1-2 minute again, and then stirred 2-3 minute with the speed of 150-160r/min, stirred 3-5 minute with the speed of 40-50r/min more at last.Utilize the charge neutrality effect that flocculation agent and dimethyl phthalate are attracted each other, and then stir at a slow speed, make its adsorption bridging effect of flocculation agent performance, thereby fall the flocculation of the dimethyl phthalate in source water absorption more than 60%.
Compare prior art, the invention has the beneficial effects as follows:
Innovation of the present invention is to adopt Poly Dimethyl Diallyl Ammonium Chloride as flocculation agent; With the flocculation of the dimethyl phthalate in source water absorption; Pass through sedimentation again, effectively reduce the content of dimethyl phthalate in supplying water, improve municipal water supply safety and hygienic quality greatly.Present method reduces the subsequent disposal difficulty greatly for the pretreatment process that cities and towns water factory supplies water.Employing the inventive method is easy and simple to handle, processing cost is low, condition is controlled easily and treatment effect is stable, can remove dimethyl phthalate type organic in the source water more than 60%.And the reaction vessel of employing, power-equipment whisking appliance and necessary pipeline are prior art, and facility investment is little, convenient control.
Embodiment
See table, a kind of method of removing environmental hormone dimethyl phthalate in the source water comprises the steps:
At first, analyze the content of environmental hormone dimethyl phthalate in the pending source water;
Secondly, according to the reacting weight of the cubage Poly Dimethyl Diallyl Ammonium Chloride flocculation agent of environmental hormone dimethyl phthalate in the source water, the amount of the contained flocculation agent Poly Dimethyl Diallyl Ammonium Chloride that adds is 0.10-20mg/L in the source water.
The 3rd, the removal process is:
(1) source water is delivered in the reactor drum,, in reactor drum, adds the flocculation agent Poly Dimethyl Diallyl Ammonium Chloride through chemical feed pipe in the said ratio of table 1; Simultaneously; Starting whisking appliance fully stirs source water and said flocculation agent; Stir earlier fast and make flocculation agent and source water thorough mixing (speed with 300r/min stirred 1 minute, and then stirred 3 minutes with the speed of 160r/min, last got final product in 5 minutes with the speed stirring of 40r/min again); Utilize the charge neutrality effect that flocculation agent and dimethyl phthalate are attracted each other; And then stir at a slow speed, make its adsorption bridging effect of flocculation agent performance, thereby fall the flocculation of the dimethyl phthalate in source water absorption more than 60%;
(2) source water of step (1) being handled leaves standstill 3-10h; Make in the source water residue flocculation agent Poly Dimethyl Diallyl Ammonium Chloride and adsorptive thereof be deposited to the bottom through the flocculating settling effect.
| The content of environmental hormone dimethyl phthalate in the water body | The Poly Dimethyl Diallyl Ammonium Chloride dosage | The churning time time of repose | The content of environmental hormone dimethyl phthalate (removal effect) | |
| Embodiment 1 | 10ug/L | 0.70mg/L | Stir and left standstill 3 hours in 5～8 minutes | (4.0ug/L reducing 60%) |
| Embodiment 2 | 50ug/L | 2.1mg/L | Stir and left standstill 3 hours in 5～8 minutes | (19.5ug/L reducing 61%) |
| Embodiment 3 | 70ug/L | 3.0mg/L | Stir and left standstill 4 hours in 5～8 minutes | (25.9ug/L reducing 63%) |
| Embodiment 5 | 0.10mg/L | 7.0mg/L | Stir and left standstill 5 hours in 5～8 minutes | (0.037mg/L reducing 63%) |
| Embodiment 6 | 0.50mg/L | 8.0mg/L | Stir and left standstill 5 hours in 5～8 minutes | (0.20mg/L reducing 60%) |
| Embodiment 7 | 1.0mg/L | 12mg/L | Stir and left standstill 8 hours in 8～10 minutes | (0.35mg/L reducing 65%) |
| Embodiment 8 | 2.0mg/L | 12mg/L | Stir and left standstill 10 hours in 5～10 minutes | (0.70mg/L reducing 65%) |
The mechanism of action of the present invention: the environmental hormone dimethyl phthalate is adsorbed through charge neutrality effect, adsorption bridging effect flocculation by the flocculation agent Poly Dimethyl Diallyl Ammonium Chloride in the source water.Dimethyl phthalate in source water flocculation absorption is fallen 60%, reduce the concentration of dimethyl phthalate in the source water greatly.
Through evidence, processing cost of the present invention is low, operating procedure is easy, condition is controlled easily, and the clearance of dimethyl terephthalate can reach more than 60%; And, need not regulate pH, just can carry out under the room temperature.
Need to prove at last; Above embodiment is only in order to explain technical scheme of the present invention but not the restriction technologies scheme; Although the applicant specifies the present invention with reference to preferred embodiment, those of ordinary skill in the art should be appreciated that those and technical scheme of the present invention is made amendment or is equal to replacement; And do not break away from the aim and the scope of present technique scheme, all should be encompassed in the middle of the claim scope of the present invention.
Claims (1)
1. a method of removing environmental hormone dimethyl phthalate in the water body is characterized in that, comprises the steps:
(1) in the reactor drum that source water is housed, adds the flocculation agent Poly Dimethyl Diallyl Ammonium Chloride, simultaneously, source water and said flocculation agent are stirred; Said stirring is adopted earlier and stirred fast, stirs at a slow speed again: the speed with 250-300r/min stirred 1-2 minute, and then stirred 2-3 minute with the speed of 150-160r/min, stirred 3-5 minute with the speed of 40-50r/min more at last; The concentration of the dosage of said flocculation agent in water is 0.10-20mg/L;
(2) source water of step (1) being handled leaves standstill 3-10h, and source water is discharged through behind the flocculating settling, supplies subsequent disposal to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101915007A CN101700923B (en) | 2009-11-18 | 2009-11-18 | Method for removing environment hormone dimethyl phthalate in water body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101915007A CN101700923B (en) | 2009-11-18 | 2009-11-18 | Method for removing environment hormone dimethyl phthalate in water body |
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| CN101700923A CN101700923A (en) | 2010-05-05 |
| CN101700923B true CN101700923B (en) | 2012-01-04 |
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| CN2009101915007A Expired - Fee Related CN101700923B (en) | 2009-11-18 | 2009-11-18 | Method for removing environment hormone dimethyl phthalate in water body |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249476B (en) * | 2011-05-01 | 2012-10-31 | 南京大学 | Method for removing phthalates out of water by utilizing UV (ultraviolet)/ozone/chlorella degradation composite process |
| CN102963968A (en) * | 2012-11-21 | 2013-03-13 | 中国科学院生态环境研究中心 | Method for removing tris(2, 3-dibromopropyl) isocyanurate in aqueous solution |
| CN105779122B (en) * | 2014-12-22 | 2019-11-12 | 丰益(上海)生物技术研发中心有限公司 | Control reduces the technique of plasticiser and thus obtained grease in grease |
| CN113307345B (en) * | 2021-06-10 | 2022-11-01 | 佛山科学技术学院 | Preparation method of flocculant for environmental hormone polluted underground water |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508080A (en) * | 2002-12-18 | 2004-06-30 | 中国科学院生态环境研究中心 | Method for removing micro di-n-butyl phthalate from drinking water by oxidation |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508080A (en) * | 2002-12-18 | 2004-06-30 | 中国科学院生态环境研究中心 | Method for removing micro di-n-butyl phthalate from drinking water by oxidation |
Non-Patent Citations (3)
| Title |
|---|
| 曹仲宏等.再生水中内分泌干扰物的初步研究.《环境与健康杂志》.2005,第22卷(第3期),171-173. * |
| 舒型武等.阳离子型有机絮凝剂研究进展.《现代化工》.2001,第21卷(第10期),13-16. * |
| 韩关根等.水中邻苯二甲酸酯类化合物去除方法实验研究.《中国公共卫生》.2003,第19卷(第2期),199-200. * |
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