CN102001780A - Method for pre-treating high-concentration organic waste water - Google Patents
Method for pre-treating high-concentration organic waste water Download PDFInfo
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- CN102001780A CN102001780A CN 201010561856 CN201010561856A CN102001780A CN 102001780 A CN102001780 A CN 102001780A CN 201010561856 CN201010561856 CN 201010561856 CN 201010561856 A CN201010561856 A CN 201010561856A CN 102001780 A CN102001780 A CN 102001780A
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- waste water
- microwave
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- concentrated organic
- organic wastewater
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Abstract
The invention discloses a method for pre-treating high-concentration organic waste water. The method comprises the following steps of: adding dilute solution of H2SO4 or solution of NaOH into continuously stirred waste water to adjust the initial pH value of the waste water to be 3; adding ferrous salt Fe2<+> and hydrogen peroxide H2O2 into the waste water under the conditions that the microwave power is 600 to 700W and the microwave radiation time is 5 to 15 minutes; and adjusting the pH value of the waste water to be 9.5 to 10, wherein the molar ratio of the H2O2 to the Fe2<+> is (60-90):1. The invention aims to develop technology for degrading and treating high-concentration organic waste water by using a novel high-efficiency microwave-Fenton reagent jointly, so that the sewage treatment cost of the related enterprise is reduced, and the enterprise benefit is improved.
Description
Technical field
The present invention relates to technical field of waste water processing such as organic chemical industry, printing and dyeing, specifically refer to a kind of high concentrated organic wastewater pretreatment process.
Background technology
Along with industrial development, biodegradable organic compounds grows with each passing day in the waste water, harm environmental safety and human health.Usually contain the organism of a large amount of difficult degradations in the high concentrated organic wastewater, COD content, colourity etc. are higher than discharging standards.Fenton reagent all is a kind of highly effective oxygenant to many organism, almost can all organism of oxidation.Microwave has stronger penetrativity, can direct heating reaction molecular, can reduce the chemical bond strength of reaction activity and molecule, improve reactive behavior greatly.Microwave technology is a new research field of rising in recent years, and it has fast, the characteristics of efficient, non-secondary pollution.In recent years, the microwave induction catalytic oxidation technology has especially obtained using widely in environmental engineering aspect wastewater treatment.
In recent years, high-level oxidation technology is being obtained certain progress aspect the processing waste water difficult for biological degradation, and especially Fenton reagent is remarkable as the organic pollutant effect in a kind of strong oxidizer removal waste water.Fenton reagent method is that a kind of employing hydrogen peroxide is an oxygenant, with the ferrous salt is the homogeneous catalysis oxidation style of catalyzer, under acidic conditions, the HO that produces in the reaction is the very strong free radical of a kind of oxidation capacity, has higher redox potential, rapidly the pollutent in the oxidized waste water and non-selectivity can make the organic structure generation demolase in the waste water, make to be difficult to biodegradable larger molecular organics and to be cracked into the small organic molecule that is easy to microbiological deterioration, perhaps permineralization is CO
2And H
2O.Compare with other oxidizing process, Fenton reagent oxidation method has that running cost is low, technology is simple, the easy and simple to handle and characteristics of reaction at normal temperatures and pressures.
Mechanism and approach according to Fenton reagent oxidation degradation of organic substances, HO is the efficiency factor of oxidation of organic compounds, and the acid-basicity of ferrous iron, hydrogen peroxide and waste water has determined the productive rate of HO, promptly determined the degree of degradable organic pollutant waste water, so the kind of the pH value of solution, catalyzer and dosage, H
2O
2Reaction times of dosage, dosing method and system all influence the degree of Fenton actual treatment hardly degraded organic substance waste water.Simultaneously for different waste water qualities different treatment effects is arranged under identical condition, its optimal treatment condition changes along with the variation of water quality treatment.
Microwave technology originates from the thirties in 20th century, is applied to communication field at first.1967, N.H.Willians reported the experimental result of accelerating chemical reaction with microwave, microwave technology has been introduced chemistry, and formed the microwave chemical frontier gradually.Microwave technology has obtained swift and violent development in the eighties in 20th century, microwave technology is applied to the new research field that environmental pollution is a rising in recent years, enjoys environmental research person's favor because of characteristics such as it is quick, efficient, non-secondary pollutions.
Microwave is meant that wavelength is 0.001 ~ 1m, and frequency is a kind of hertzian wave of 300 ~ 300000MHz.Since this new forms of energy of microwave come out, it and light, electric instrument are widely used in social production, various fields of recent life, microwave has very strong penetration, energy direct heating reactant molecule, the thermodynamic(al)function of change system, reduce the activation energy of reaction and the chemical bond strength of molecule, improve reactive behavior greatly, obtain broad research and application in fields such as organic synthesis, environmental chemistry, polymer degradeds.
Along with updating of constantly perfect, the material installation of treatment technology theory, the microwave induction catalytic oxidation technology will become a kind of economy, efficient, tool wastewater processing technology with broad prospects for development.At present, some scholars also begin to promote Fenton reagent method to handle organic waste water to microwave and have carried out useful exploration both at home and abroad, studies show that microwave radiation can improve the speed of reaction and the clearance of Fenton reagent degradable organic pollutant, and can reduce reaction activity.Microwave is introduced the Fenton reaction,, improve its processing efficiency and have significant meaning for utilizing Fenton reaction high-level oxidation technology to handle waste water.
Summary of the invention
The objective of the invention is to develop a kind of new and effective microwave-Fenton reagent combined degradation high concentrated organic wastewater and treatment technology,, improve the performance of enterprises to reduce the relevant enterprise cost of sewage disposal.
Technical scheme of the present invention is:
A kind of pretreatment process of high concentrated organic wastewater is characterized in that: said method comprising the steps of:
(1) in continuing the waste water that stirs, adds rare H
2SO
4Solution or NaOH solution are regulated initial pH on wastewater value to 3;
(2), under the microwave irradiation time 5-15min condition, in waste water, add divalent iron salt Fe at microwave power 600-700W
2+And hydrogen peroxide H
2O
2, regulate waste water ph to 9.5-10, wherein H
2O
2With Fe
2+Mol ratio be 60-90:1.
H
2O
2With Fe
2+The mol ratio preferred values be 75:1.
The COD clearance is 83% in the high concentrated organic wastewater.
Chroma removal rate is 100% in the high concentrated organic wastewater.
The treatment effect of the method for the invention is reliable and stable, and is easy to operation, and running cost is lower, is suitable for the pre-treatment of the high concentrated organic wastewater of organic chemical industry enterprise, printing and dyeing or the discharging of other similar enterprises.
Embodiment:
Describe the present invention below in conjunction with specific embodiment.
Embodiment 1:
A kind of pretreatment process of high concentrated organic wastewater may further comprise the steps:
(1) in continuing the waste water that stirs, adds rare H
2SO
4Solution or NaOH solution are regulated initial pH on wastewater value to 3;
(2), under the microwave irradiation time 5min condition, in waste water, add divalent iron salt Fe at microwave power 600W
2+And hydrogen peroxide H
2O
2, regulate waste water ph to 9.5, wherein H
2O
2With Fe
2+Mol ratio be 70:1.
Embodiment 2:
A kind of pretreatment process of high concentrated organic wastewater may further comprise the steps:
(1) in continuing the waste water that stirs, adds rare H
2SO
4Solution or NaOH solution are regulated initial pH on wastewater value to 3;
(2), under the microwave irradiation time 15min condition, in waste water, add divalent iron salt Fe at microwave power 700W
2+And hydrogen peroxide H
2O
2, regulate waste water ph to 10, wherein H
2O
2With Fe
2+Mol ratio be 80:1.
Embodiment 3:
A kind of pretreatment process of high concentrated organic wastewater may further comprise the steps:
(1) in continuing the waste water that stirs, adds rare H
2SO
4Solution or NaOH solution are regulated initial pH on wastewater value to 3;
(2), under the microwave irradiation time 10min condition, in waste water, add divalent iron salt Fe at microwave power 650W
2+And hydrogen peroxide H
2O
2, regulate waste water ph to 9.5, wherein H
2O
2With Fe
2+Mol ratio be 75:1.
Embodiment 4:
A kind of pretreatment process of high concentrated organic wastewater may further comprise the steps:
(1) in continuing the waste water that stirs, adds rare H
2SO
4Solution or NaOH solution are regulated initial pH on wastewater value to 3;
(2), under the microwave irradiation time 8min condition, in waste water, add divalent iron salt Fe at microwave power 620W
2+And hydrogen peroxide H
2O
2, regulate waste water ph to 10, wherein H
2O
2With Fe
2+Mol ratio be 90:1.
By above method, the COD clearance is 83% in the high concentrated organic wastewater, and chroma removal rate is 100%.
Claims (4)
1. the pretreatment process of a high concentrated organic wastewater is characterized in that: said method comprising the steps of:
(1) in continuing the waste water that stirs, adds rare H
2SO
4Solution or NaOH solution are regulated initial pH on wastewater value to 3;
(2), under the microwave irradiation time 5-15min condition, in waste water, add divalent iron salt Fe at microwave power 600-700W
2+And hydrogen peroxide H
2O
2, regulate waste water ph to 9.5-10, wherein H
2O
2With Fe
2+Mol ratio be 60-90:1.
2. according to the pretreatment process of the described a kind of high concentrated organic wastewater of claim 1, it is characterized in that: H
2O
2With Fe
2+The mol ratio preferred values be 75:1.
3. according to the pretreatment process of the described a kind of high concentrated organic wastewater of claim 1, it is characterized in that: the COD clearance is 83% in the high concentrated organic wastewater.
4. according to the pretreatment process of the described a kind of high concentrated organic wastewater of claim 1, it is characterized in that: chroma removal rate is 100% in the high concentrated organic wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010561856 CN102001780A (en) | 2010-11-29 | 2010-11-29 | Method for pre-treating high-concentration organic waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010561856 CN102001780A (en) | 2010-11-29 | 2010-11-29 | Method for pre-treating high-concentration organic waste water |
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| Publication Number | Publication Date |
|---|---|
| CN102001780A true CN102001780A (en) | 2011-04-06 |
Family
ID=43809529
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| CN 201010561856 Pending CN102001780A (en) | 2010-11-29 | 2010-11-29 | Method for pre-treating high-concentration organic waste water |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491573A (en) * | 2011-12-23 | 2012-06-13 | 西南大学 | Method for enhancing degradability of antibiotics and hormones in livestock cultivating waste water |
| CN103058294A (en) * | 2011-10-18 | 2013-04-24 | 成都快典科技有限公司 | Sewage treatment process by microwave |
| CN103214059A (en) * | 2013-04-09 | 2013-07-24 | 沈阳工业大学 | Microwave-Fenton unified all-in-one machine for treating organic chemical wastewater |
| CN103787536A (en) * | 2014-02-19 | 2014-05-14 | 南京大学 | Microwave-assisted Fenton catalytic degradation method for organic dye wastewater using iron ore tailings |
| CN105540988A (en) * | 2016-01-15 | 2016-05-04 | 航天圣诺（北京）环保科技有限公司 | Effluent treatment technology and system based on combination of super magnetic separation and microwave energy technology |
| CN107487911A (en) * | 2016-06-13 | 2017-12-19 | 中国石油化工股份有限公司 | A kind of plasticizer DINCH pretreatment method for wastewater |
| CN107777751A (en) * | 2016-08-29 | 2018-03-09 | 中国石油化工股份有限公司 | A kind of new method for handling nitropheneol waste water |
| CN108862766A (en) * | 2018-07-02 | 2018-11-23 | 深圳清华大学研究院 | Microwave-assisted Fenton quickly handles method, control method, equipment flush control method and the reactor of complicated organic wastewater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6627428B1 (en) * | 1999-09-24 | 2003-09-30 | Georgia Tech Research Corp. | Degradation of organic contaminants by a microbially-driven fenton reaction |
| CN1837076A (en) * | 2006-04-07 | 2006-09-27 | 重庆大学 | Process for degradation of organic waste water by fly ash |
| CN1966419A (en) * | 2006-11-22 | 2007-05-23 | 哈尔滨工业大学 | Method for removing pollutant of water with synergistic effect of water treatment agent and microwave |
| CN101503268A (en) * | 2009-03-11 | 2009-08-12 | 东莞市珠江海咸水淡化研究所 | Zero discharge processing EBM method for dyeing waste water |
| CN101767859A (en) * | 2010-01-19 | 2010-07-07 | 却力挥 | Waste water treatment method combining Fenton oxidization and microwave catalysis phase |
-
2010
- 2010-11-29 CN CN 201010561856 patent/CN102001780A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6627428B1 (en) * | 1999-09-24 | 2003-09-30 | Georgia Tech Research Corp. | Degradation of organic contaminants by a microbially-driven fenton reaction |
| CN1837076A (en) * | 2006-04-07 | 2006-09-27 | 重庆大学 | Process for degradation of organic waste water by fly ash |
| CN1966419A (en) * | 2006-11-22 | 2007-05-23 | 哈尔滨工业大学 | Method for removing pollutant of water with synergistic effect of water treatment agent and microwave |
| CN101503268A (en) * | 2009-03-11 | 2009-08-12 | 东莞市珠江海咸水淡化研究所 | Zero discharge processing EBM method for dyeing waste water |
| CN101767859A (en) * | 2010-01-19 | 2010-07-07 | 却力挥 | Waste water treatment method combining Fenton oxidization and microwave catalysis phase |
Non-Patent Citations (1)
| Title |
|---|
| 《后勤工程学院学报》 20090731 伊茜等 微波辐射Fenton反应降解罗丹明B研究 1 第25卷, 第04期 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058294A (en) * | 2011-10-18 | 2013-04-24 | 成都快典科技有限公司 | Sewage treatment process by microwave |
| CN102491573A (en) * | 2011-12-23 | 2012-06-13 | 西南大学 | Method for enhancing degradability of antibiotics and hormones in livestock cultivating waste water |
| CN103214059A (en) * | 2013-04-09 | 2013-07-24 | 沈阳工业大学 | Microwave-Fenton unified all-in-one machine for treating organic chemical wastewater |
| CN103214059B (en) * | 2013-04-09 | 2014-07-30 | 沈阳工业大学 | Microwave-Fenton unified all-in-one machine for treating organic chemical wastewater |
| CN103787536A (en) * | 2014-02-19 | 2014-05-14 | 南京大学 | Microwave-assisted Fenton catalytic degradation method for organic dye wastewater using iron ore tailings |
| CN103787536B (en) * | 2014-02-19 | 2015-07-22 | 南京大学 | Microwave-assisted Fenton catalytic degradation method for organic dye wastewater using iron ore tailings |
| CN105540988A (en) * | 2016-01-15 | 2016-05-04 | 航天圣诺（北京）环保科技有限公司 | Effluent treatment technology and system based on combination of super magnetic separation and microwave energy technology |
| CN105540988B (en) * | 2016-01-15 | 2018-11-23 | 航天圣诺（北京）环保科技有限公司 | The waste water treatment process combined based on super Magneto separate and microwave energy technology |
| CN107487911A (en) * | 2016-06-13 | 2017-12-19 | 中国石油化工股份有限公司 | A kind of plasticizer DINCH pretreatment method for wastewater |
| CN107487911B (en) * | 2016-06-13 | 2021-04-06 | 中国石油化工股份有限公司 | Plasticizer DINCH wastewater pretreatment method |
| CN107777751A (en) * | 2016-08-29 | 2018-03-09 | 中国石油化工股份有限公司 | A kind of new method for handling nitropheneol waste water |
| CN108862766A (en) * | 2018-07-02 | 2018-11-23 | 深圳清华大学研究院 | Microwave-assisted Fenton quickly handles method, control method, equipment flush control method and the reactor of complicated organic wastewater |
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Application publication date: 20110406 |