CN100465100C - Method for removing atranex in water - Google Patents
Method for removing atranex in water Download PDFInfo
- Publication number
- CN100465100C CN100465100C CNB2007100223955A CN200710022395A CN100465100C CN 100465100 C CN100465100 C CN 100465100C CN B2007100223955 A CNB2007100223955 A CN B2007100223955A CN 200710022395 A CN200710022395 A CN 200710022395A CN 100465100 C CN100465100 C CN 100465100C
- Authority
- CN
- China
- Prior art keywords
- water
- discharge
- medium
- dielectric barrier
- electric source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
This invention discloses a medium-blockage discharge method for removing atrazine from water. The method comprises: (1) placing the water to be treated between a high-voltage electrode and a ground electrode with a medium in between; (2) applying high-frequency current to the high-voltage electrode, and discharging with the blockage of the medium. The discharge voltage peak, current peak and current frequency are 8000-12000 V, 20-50 mA and 2.5-30 kHz, respectively. The distance between the medium and the water surface is not more than 20 mm. The method has such advantages as high efficiency, simple process, high controllability, mild reaction conditions and easy operation.
Description
Technical field
The present invention relates to field of waste water treatment, be specifically related to the method for G-30027 in a kind of degradation water.
Background technology
G-30027 (being atrazine again) is a post-emergence herbicide before the sym-trinitrobenzene selectivity bud, can be used for preventing and kill off annual single, double cotyledon weeds such as Cruciferae, pulse family, and some deep-rootedness weeds is also had certain restraining effect.Since nineteen fifty-nine was dropped into commercial production, G-30027 had worldwide obtained large-area popularization and use.G-30027 (atrazine) is playing a good role aspect reduction labour intensity and the raising crop yield undoubtedly, yet a large amount of uses of G-30027 (atrazine) have also caused the serious environmental pollution, because of it has soil eluviation, easily by leachings such as rainwater, irrigation waters to than deep soil, or enter in surface water and the underground water with face of land runoff, because its residence time is long, be difficult to degraded, limited groundwater resource have been caused serious pollution.
Discover that G-30027 is a kind of endocrine disrupter, can produce the effect of hormones to people and wildlife, or hinder reproductive function, or cause cancer etc.The G-30027 of low dosage exposes and will cause that female sex hormone hormone secretion amount increases in the batrachia body, and its endocrine system is destroyed, and causes male batrachia to feminize or telianthus, and G-30027 also has similar internal secretion interference effect to fish.By direct contact or the mode transmitted with food chain, G-30027 also can work the mischief to HUMAN HEALTH.Discover that it can cause mammary cancer, ovarian cancer and uterus carcinoma to a great extent, influence human body hormone secretion system, also can leukemogenesis and lymphoma, therefore, national governments have strengthened the monitoring to this compound.
The safe level that is defined in the G-30027 (atrazine) in the surface water in China's water environment quality standard (GB3838-2002) is 0.003mg/L.In in June, 2003 U.S.'s drinking water standard, the maximum acceptable concentration value of G-30027 (atrazine) is dropped to 0.001mg/L (reduced the report check maximum value simultaneously, dropped to 0.0005mg/L from 0.001mg/L) from 0.003mg/L (federal standard); On October 3rd, 2005, China national standardization management committee (SAC) has formulated " nine kinds of weedicide limit standards among the farmland irrigating water ", wherein just comprises G-30027 (atrazine).In the same year, classify G-30027 (atrazine) as water quality unconventional Interventions Requested in the drinking water sanitary standard (GB 5749-2005) of China's promulgation, and stipulate that its limit value is 0.002mg/L.In the Urban water supply water quality standard (CJ/T 206-2005) of Ministry of Construction's promulgation, classify G-30027 (atrazine) as Urban water supply water quality unconventional Interventions Requested, and stipulate that its limit value is 0.002mg/L.
G-30027 (atrazine) removal method mainly contains absorption method, chemical oxidation method, microbial degradation method in the more water body of research at present.Absorption method mainly is the transfer that has realized the pollutent phase, and real removing from environment useless; Chemical oxidization method easily causes secondary pollution owing to need add a large amount of chemical agents; The time of microbial degradation method is longer, and microorganism growth is relatively stricter to environment requirement, moreover since the bio-toxicity of G-30027 (atrazine), the microorganism of still not isolating the thorough mineralising G-30027 of a kind of energy (atrazine) so far.
Therefore, seek a kind of method of efficiently, simply removing G-30027 in the water body (atrazine) and seem particularly important.High-level oxidation technology is a kind of effective method of wastewater treatment, the OH free radical with strong oxidizing property that its utilize the to produce organic pollutant in dewatering of making a return journey.The cold plasma treatment technology is a kind of of high-level oxidation technology in the water, has processing efficiency height, non-selectivity, does not produce advantage such as secondary pollution, and wherein dielectric barrier discharge (DBD) is a cold plasma producing method commonly used at present, and it not only produces O
3, H
2O
2, high-energy electron and ultraviolet radiation, and can produce a large amount of active substance (OH, H, O etc.).We adopt medium blocking-discharge method that G-30027 in the water (atrazine) is degraded, and have reached good effect.
Summary of the invention
The objective of the invention is deficiency, provide a kind of efficient height, technology simply to remove the method for G-30027 in the water body (atrazine) at existing method.
Purpose of the present invention can reach by following measure:
A kind of method of removing G-30027 in the water adopts medium blocking-discharge method that the water that contains G-30027 is handled, and the G-30027 in the water body is degraded; The water that is about to handle is put into high voltage electrode (being discharge electrode) and is accepted between the electrode (being ground-electrode), medium is arranged between the water surface and discharge electrode in addition, to feed discharge electrode by the electric current of high frequency electric source output, carry out dielectric barrier discharge, water will be handled; Wherein Fang Dian electric current is produced by high frequency electric source, and the sparking voltage peak value is 8000～12000V (an AC sine wave mode), and maximum discharge current is 20～50mA, and the power frequency of generation is 2.5kHz～30kHz; The medium of dielectric barrier discharge and the distance of the water surface are no more than 20mm.
Can also in containing the water of G-30027, add Fe
2+Or Cu
2+Ion is to improve degradation effect, Fe
2+Or Cu
2+The ionic add-on is 10～500mg/L, preferred 30～200mg/L.Add in order to form Fe
2+Can be ferrous sulfate or ferrous sulfate amine, adding in order to form Cu
2+Can be copper sulfate.
The high performance liquid chromatography that the present invention adopts hewlette-packard to produce detects the G-30027 in the water.
The power frequency of high frequency electric source is preferably 10～20kHz, most preferably about 15kHz.Be 10～90s the discharge time of high frequency electric source.Medium used in the present invention is silica glass or pottery.Discharge of the present invention and accept electrode and can adopt conventional electrodes is as metal electrode etc.
Can produce the sparking voltage peak value in principle is 8000～12000V (AC sine wave mode), and maximum discharge current is 20～50mA, and the power frequency of generation is that the high frequency electric source of 2.5kHz～30kHz can be applied to the present invention.The CTP-2000K dielectric barrier discharge power supply of the high frequency electric source that is adopted in the embodiment of the invention for being produced by Nanjing Su Man Electronics Co., Ltd. can be regulated the voltage and the power of high frequency electric source by voltate regulator, thereby controls the discharging current of output.The voltage of the high frequency electric source that voltate regulator is regulated and power range are respectively 0～220V and 0～500W.
The dielectric barrier discharge of the embodiment of the invention is produced by high frequency electric source, regulate the voltage and the power of input high frequency electric source by voltate regulator, power input (60～300W) and voltage (50～220V) is high more, and the strength of discharge that high frequency electric source produces is high more, and corresponding G-30027 degradation rate is high more.Dielectric barrier discharge process medium is no more than 20mm with the distance of the water surface, and dielectric barrier discharge device adopting quartz glass is made.In the water sample of handling, add Fe
2+Perhaps Cu
2+Can effectively improve degradation effect.
A kind of concrete implementation method of the present invention is: silica glass is made the tank of drum shape, tank diameter 12cm, high 8mm, tank is put on the metal electrode, this electrode adopts stainless steel to make, and connects the earthing pole of discharge power supply, and the water that will contain G-30027 is put into the silica glass tank, top at this tank adds cylindrical cap, lid diameter 12.4cm, high 6mm, lid also adopting quartz glass make, and stay 2 holes on the lid, bore dia 5mm.Above the silica glass lid, put the stainless steel electrode that links to each other with the discharge power supply high-pressure stage.
The present invention utilizes the electrion method that the G-30027 in the water body is degraded, and adopts dielectric barrier discharge that the water body that contains G-30027 is handled, and the G-30027 in the water body is degraded.
Dielectric barrier discharge is applied in air contaminant treatment and body surface processing aspect after deliberation for many years, rarely has report and be applied to water pollution control.Dielectric barrier discharge is to have dielectric to insert a kind of geseous discharge of discharge space, medium can cover on the electrode or be suspended in the discharge space, when on discharge electrode, applying sufficiently high voltage of alternating current, interelectrode gas is even also can be breakdown under high atmospheric pressure very and form so-called dielectric barrier discharge.Medium blocking-discharge method not only can produce O
3, H
2O
2, high-energy electron and ultraviolet radiation, but also can produce a large amount of active substance (OH, H, O etc.).Ozone has extremely strong oxidative function, and the redox potential in water is 2.07V, is only second to fluorine (2.87V), and its oxidation capacity is higher than chlorine (1.36V), dioxide peroxide (1.5V), so it has very strong oxidation capacity to organic pollutant in the water; H
2O
2Also be a kind of strong oxidizer, it has very strong oxidation capacity equally to organic pollutant in the water; The high-energy electron and OH, H, the O etc. that produce are the high reactivity materials, can promptly react with the pollutent in the water, remove organic purpose thereby reach.Wherein, OH is typical strong oxidizer, and its redox potential is 2.80V, is the present known the strongest oxygenant of oxidation capacity that can use in water treatment, its with water in most of organism reactions comparatively fast, reaction rate constant is 10
8-10
10M
-1S
-1In the order of magnitude scope.Owing to produced a large amount of high-octane electronics (1-10eV) and strong oxidizing property material in the dielectric barrier discharge process, therefore, the removal of organic pollutant can be that oxygenizement also can be a reductive action in the water body, and this depends primarily on the kind and the character thereof of pollutent.
In the water sample of handling, add Fe
2+Perhaps Cu
2+Can effectively improve degradation effect, mainly be owing to produced H in the dielectric barrier discharge process
2O
2, moreover the pH value of water can quickly fall to about 2.8 in the dielectric barrier discharge process, wherein Fe
2+(perhaps Cu
2+) and H
2O
2Be the integral part of classical Fenton reagent (perhaps Fenton-like reagent), Fenton reagent (perhaps Fenton-like reagent) (pH=2.00-5.00) under sour environment can generate highly active HO.
Fe
2++H
2O
2→Fe
3++OH
-+HO·
Fe like this
2+Perhaps Cu
2+Adding increased the growing amount of HO, increased organic removal efficient naturally.
Medium blocking-discharge method is handled relative other method of G-30027 (atrazine) waste water and is had the following advantages:
(1) can be by changing impressed voltage conditioned reaction condition at any time, controllability is stronger;
(2) high-energy electron that produces in the reaction process, O
3, H
2O
2And active substance (OH, H, O etc.) do not have selectively with water in pollutant reaction, it is degraded to carbonic acid gas, water and simple organic;
(3) reaction conditions gentleness, dielectric barrier discharge just can be carried out at normal temperatures and pressures;
(4) reactor apparatus and operate fairly simple.
Embodiment
Adopt the CTP-2000K dielectric barrier discharge power supply of being produced by Nanjing Su Man Electronics Co., Ltd. in following examples, this power supply is regulated the voltage and the power of high frequency electric source by voltate regulator, thereby controls the discharging current and the voltage of output.Silica glass is made the tank (need handle water put into tank) of drum shape, tank diameter 12cm, high 8mm, tank is put on the metal electrode, this electrode adopts stainless steel to make, and connects the earthing pole of discharge power supply, and the water that will contain G-30027 is put into the silica glass tank, top at this tank adds cylindrical cap, lid diameter 12.4cm, high 6mm, lid also adopting quartz glass make (being medium), and stay 2 holes on the lid, bore dia 5mm.Above the silica glass lid, put the stainless steel electrode that links to each other with dielectric barrier discharge power supply high-pressure stage.The machining area of dielectric barrier discharge is 50cm
2Add in order to form Fe
2+Can be ferrous sulfate or ferrous sulfate amine, adding in order to form Cu
2+Be copper sulfate.The high performance liquid chromatography that adopts hewlette-packard to produce detects the G-30027 in the water.
Embodiment 1
The hydromining that contains G-30027 concentration and be 18mg/L is handled with medium blocking-discharge method, the water 10mL that will contain G-30027 puts into above-mentioned dielectric barrier discharge equipment, regulate the input voltage and the power of voltate regulator, making the sparking voltage peak value is (AC sine wave mode) about 10000V, maximum discharge current is about 35mA, and the power frequency of generation is about 15kHz, the discharging gap 10mm of the medium and the water surface, under the situation of 10s discharge time, the degradation rate of G-30027 is 23% after testing.
Embodiment 2
With embodiment 1, only be extended for 20s the discharge time among the embodiment 1 after, be 38% to the degradation rate of G-30027.
Embodiment 3
With embodiment 1, only be extended for 30s the discharge time among the embodiment 1 after, be 58% to the degradation rate of G-30027.
Embodiment 4
With embodiment 1, only be extended for 40s the discharge time among the embodiment 1 after, be 64% to the degradation rate of G-30027.
Embodiment 5
With embodiment 1, only be extended for that the degradation rate to G-30027 is 76% behind the 50s discharge time among the embodiment 1.
Embodiment 6
With embodiment 1, only be extended for that the degradation rate to G-30027 is 87% behind the 60s discharge time among the embodiment 1.
Embodiment 7
With embodiment 1, only be extended for that the degradation rate to G-30027 is 100% behind the 90s discharge time among the embodiment 1.
Embodiment 8
Contain the Fe that adds 120mg/L in the water of G-30027 at embodiment 3
2+, other are with embodiment 3, and the reaction back is 69% to the degradation rate of G-30027.
Embodiment 9
Contain the Fe that adds 120mg/L in the water of G-30027 at embodiment 4
2+, other are with embodiment 4, and the reaction back is 88% to the degradation rate of G-30027.
Embodiment 10
Contain the Fe that adds 120mg/L in the water of G-30027 at embodiment 5
2+, other are with embodiment 5, and the reaction back is 91% to the degradation rate of G-30027.
Embodiment 11
Contain the Fe that adds 120mg/L in the water of G-30027 at embodiment 6
2+, other are with embodiment 6, and the reaction back is 99% to the degradation rate of G-30027.
Embodiment 12
Contain the Cu that adds 120mg/L in the water of G-30027 at embodiment 3
2+, other are with embodiment 3, and the reaction back is 62% to the degradation rate of G-30027.
Embodiment 13
Contain the Cu that adds 120mg/L in the water of G-30027 at embodiment 4
2+, other are with embodiment 4, and the reaction back is 70% to the degradation rate of G-30027.
Embodiment 14
Contain the Cu that adds 120mg/L in the water of G-30027 at embodiment 5
2+, other are with embodiment 5, and the reaction back is 83% to the degradation rate of G-30027.
Embodiment 15
Contain the Cu that adds 120mg/L in the water of G-30027 at embodiment 6
2+, other are with embodiment 6, and the reaction back is 91% to the degradation rate of G-30027.
Embodiment 16
Contain the Cu that adds 50mg/L in the water of G-30027 at embodiment 5
2+, other are with embodiment 5, and the reaction back is 80% to the degradation rate of G-30027.
Embodiment 17
Contain the Cu that adds 200mg/L in the water of G-30027 at embodiment 5
2+, other are with embodiment 5, and the reaction back is 85% to the degradation rate of G-30027.
Embodiment 18
The hydromining that contains G-30027 concentration and be 18mg/L is handled with medium blocking-discharge method, the water 10mL that will contain G-30027 puts into above-mentioned dielectric barrier discharge equipment, regulate the input voltage and the power of voltate regulator, making the sparking voltage peak value is (AC sine wave mode) about 9000V, maximum discharge current is about 25mA, and the power frequency of generation is about 7.5kHz, the discharging gap 7mm of the medium and the water surface, under the situation of 60s discharge time, the degradation rate of G-30027 is 79% after testing.
Embodiment 19
The hydromining that contains G-30027 concentration and be 20mg/L is handled with medium blocking-discharge method, the water 10mL that will contain G-30027 puts into above-mentioned dielectric barrier discharge equipment, regulate the input voltage and the power of voltate regulator, making the sparking voltage peak value is (AC sine wave mode) about 11000V, maximum discharge current is about 45mA, and the power frequency of generation is about 25kHz, the discharging gap 15mm of the medium and the water surface, under the situation of 50s discharge time, the degradation rate of G-30027 is 85% after testing.
Claims (6)
1, a kind of method of removing G-30027 in the water is characterized in that adopting medium blocking-discharge method to handle containing G-30027 water, and the G-30027 in the water body is degraded; The water that is about to need to handle is put between high voltage electrode and the ground-electrode, and medium is arranged between the water surface and high voltage electrode in addition, will feed high voltage electrode by the electric current of high frequency electric source output, carries out dielectric barrier discharge, and water is handled; Wherein Fang Dian electric current is produced by high frequency electric source, and the sparking voltage peak value is 8000～12000V, and maximum discharge current is 20～50mA, and the power frequency of generation is 2.5kHz～30kHz; The medium of dielectric barrier discharge and the distance of the water surface are no more than 20mm.
2, method according to claim 1 is characterized in that adding Fe in containing the water of G-30027
2+Or Cu
2+Ion is to improve degradation effect.
3, method according to claim 2 is characterized in that Fe
2+Or Cu
2+The ionic add-on is 10～500mg/L.
4, method according to claim 1, the power frequency that it is characterized in that high frequency electric source is 10～20kHz.
5, method according to claim 1, the medium that it is characterized in that dielectric barrier discharge is silica glass or pottery.
6, method according to claim 1, be 10～90s the discharge time that it is characterized in that high frequency electric source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100223955A CN100465100C (en) | 2007-05-16 | 2007-05-16 | Method for removing atranex in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100223955A CN100465100C (en) | 2007-05-16 | 2007-05-16 | Method for removing atranex in water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101050000A CN101050000A (en) | 2007-10-10 |
| CN100465100C true CN100465100C (en) | 2009-03-04 |
Family
ID=38781635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100223955A Expired - Fee Related CN100465100C (en) | 2007-05-16 | 2007-05-16 | Method for removing atranex in water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100465100C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734821B (en) * | 2008-11-24 | 2011-10-05 | 中国石油天然气股份有限公司 | Method for treating atrazine-containing pesticide wastewater |
| CN102107999B (en) * | 2011-01-18 | 2012-02-29 | 中国中化股份有限公司 | Method for pretreating atrazine production wastewater |
| CN102992515B (en) * | 2012-11-23 | 2013-11-27 | 烟台大学 | Method for treating highly saline atrazine production waste water |
| CN104860381A (en) * | 2015-03-31 | 2015-08-26 | 南京大学 | Method and apparatus for treating atrazine waste water by using combination of multi-needle corona discharge and titanium dioxide catalyst |
| CN104828899B (en) * | 2015-04-20 | 2017-07-14 | 南京大学 | A kind of line plate discharge plasma sewage-treatment plant |
| CN105417865B (en) * | 2015-12-03 | 2018-09-28 | 合肥工业大学 | A kind of continuous efficient removes medicine device |
| CN106517608B (en) * | 2016-12-14 | 2019-05-31 | 合肥工业大学 | A kind of preprocess method of high concentration organism P wastewater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06210287A (en) * | 1993-01-20 | 1994-08-02 | Ushio Inc | Treatment using dielectric barrier-electric discharge lamp |
| CN1513772A (en) * | 2003-06-04 | 2004-07-21 | 大连动静科技有限公司 | Short high tension pulse medium barrier discharge plasma water treatment method equipment |
| US20040245087A1 (en) * | 2001-09-10 | 2004-12-09 | Hag-Joo Lee | Water discharge in a dielectric barrier discharge system to generate an ozonated water |
| JP2005313174A (en) * | 2005-05-26 | 2005-11-10 | Ushio Inc | Treatment method using dielectric barrier discharge lamp |
| CN2813596Y (en) * | 2005-06-17 | 2006-09-06 | 华南理工大学 | Dielectric blocking discharge plasma waste gas and waste liquid purifying device |
-
2007
- 2007-05-16 CN CNB2007100223955A patent/CN100465100C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06210287A (en) * | 1993-01-20 | 1994-08-02 | Ushio Inc | Treatment using dielectric barrier-electric discharge lamp |
| US20040245087A1 (en) * | 2001-09-10 | 2004-12-09 | Hag-Joo Lee | Water discharge in a dielectric barrier discharge system to generate an ozonated water |
| CN1513772A (en) * | 2003-06-04 | 2004-07-21 | 大连动静科技有限公司 | Short high tension pulse medium barrier discharge plasma water treatment method equipment |
| JP2005313174A (en) * | 2005-05-26 | 2005-11-10 | Ushio Inc | Treatment method using dielectric barrier discharge lamp |
| CN2813596Y (en) * | 2005-06-17 | 2006-09-06 | 华南理工大学 | Dielectric blocking discharge plasma waste gas and waste liquid purifying device |
Non-Patent Citations (4)
| Title |
|---|
| DBD等离子体及其应用技术的发展. 王燕，赵艳辉，白希尧，张芝涛.自然杂志，第24卷第5期. 2002 |
| DBD等离子体及其应用技术的发展. 王燕，赵艳辉，白希尧，张芝涛.自然杂志，第24卷第5期. 2002 * |
| 低温等离子体对水体中4-氯酚的脱氯. 郑光明，朱承驻，候惠奇.复旦学报（自然科学版），第43卷第6期. 2004 |
| 低温等离子体对水体中4-氯酚的脱氯. 郑光明，朱承驻，候惠奇.复旦学报（自然科学版），第43卷第6期. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101050000A (en) | 2007-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100465100C (en) | Method for removing atranex in water | |
| Thiam et al. | Electrochemical advanced oxidation of carbofuran in aqueous sulfate and/or chloride media using a flow cell with a RuO2-based anode and an air-diffusion cathode at pre-pilot scale | |
| Ghahrchi et al. | Electro-catalytic ozonation for improving the biodegradability of mature landfill leachate | |
| Exposito et al. | Study of the intensification of solar photo-Fenton degradation of carbamazepine with ferrioxalate complexes and ultrasound | |
| Ghernaout et al. | Removing antibiotic-resistant bacteria (ARB) carrying genes (ARGs): challenges and future trends | |
| CN102180557B (en) | Composite organic waste water advanced oxidation device | |
| CN103864185B (en) | The efficient Quick Oxidation of glow discharge is utilized to fix method and the device thereof of arsenic in waste water | |
| CN102976472A (en) | Groundwater remediation method by Electro-Fenton reaction using iron cathode | |
| CN101734750A (en) | Method for performing electrochemical advanced treatment on landfill leachate based on ultraviolet reinforcement | |
| CN101565228B (en) | Device for treating refractory organic sewage with nanosecond pulse discharge plasma | |
| Eslami et al. | Sono-peroxi-coagulation (SPC) as an effective treatment for pulp and paper wastewater: focus on pH effect, biodegradability, and toxicity | |
| CN104370350A (en) | Electrochemistry apparatus for water treatment and method | |
| CN101798130A (en) | Wastewater treatment method based on electro-Fenton reaction | |
| Xiao et al. | Enhancement of municipal sludge dewaterability by electrochemical pretreatment | |
| CN108483743A (en) | A kind of coating wastewater processing system and method | |
| Alegbeleye et al. | Efficient removal of antibiotics from water resources is a public health priority: a critical assessment of the efficacy of some remediation strategies for antibiotics in water | |
| CN104817139B (en) | Upflow electro-Fenton fixed-bed reactor | |
| CN102020384A (en) | Method for handling organic wastewater based on Fenton reaction | |
| CN201148361Y (en) | Highly effective nano-sterilizing apparatus | |
| Wang et al. | Sulfite activation by water film dielectric barrier discharge plasma for ibuprofen degradation: Efficiency, comparison of persulfate, mechanism, active substances dominant to pathway, and toxicity evaluation | |
| CN100465101C (en) | Method for removing herbicide Dailon in water | |
| CN202297234U (en) | High-grade oxidizing device for pretreating rubbish leachate | |
| CN102424449A (en) | Method for removing hexavalent chromium in water by utilizing low temperature plasma | |
| Luo et al. | Enhanced removal of humic acid from piggery digestate by combined microalgae and electric field | |
| CN102211832B (en) | Method for treating cutting fluid wastewater by photocatalytic oxidation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20100516 |