CN109987693A - The method that dithionite activate persistent organic pollutants in persulfate processing waste water - Google Patents
The method that dithionite activate persistent organic pollutants in persulfate processing waste water Download PDFInfo
- Publication number
- CN109987693A CN109987693A CN201811464111.2A CN201811464111A CN109987693A CN 109987693 A CN109987693 A CN 109987693A CN 201811464111 A CN201811464111 A CN 201811464111A CN 109987693 A CN109987693 A CN 109987693A
- Authority
- CN
- China
- Prior art keywords
- dithionite
- persulfate
- waste water
- organic pollutants
- persistent organic
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention relates to the methods of persistent organic pollutants in a kind of dithionite activation persulfate processing waste water, it include: to react after successively adding dithionite and persulfate into the waste water containing persistent organic pollutants, the waste water that obtains that treated；Wherein the molar ratio of persistent organic pollutants is 1:1~500:1 in persulfate and waste water.It is characteristic of the invention that carried out under normal temperature and pressure, acidity or neutrallty condition, no external energy, it is easy to operate to environment risk without secondary pollution, to persistent organic pollutants good degrading effect in environment, there is very big application potential in field of environment pollution control.
Description
Technical field
The present invention relates to a kind of methods of persistent organic pollutants in processing waste water, more particularly, to a kind of two sulfurous of company
The method that acid salt activating persulfate handles persistent organic pollutants in waste water.
Background technique
Retention time is long in the environment, the extent of injury is big, processing difficulty is big and has for persistence persistent organic pollutants
Bioconcentration.Processing Technology Research to this pollutant is always the research hotspot of current environmentally friendly scientific and technological circle both at home and abroad,
Middle-and-high-ranking oxidation technology (AOPs) has the such persistent organic pollutants of processing because it can generate strongly active free radical
Potentiality and ability.
Advanced oxidation processes have been widely used for the persistent organic pollutants in removal drinking water and waste water, these pollutions
Object is based primarily upon in-situ preparation highly reactive form of oxygen substance, such as hydroxyl radical free radical (OH), sulfate radical (SO4 ·-), superoxide radical
(O2 ·-) and singlet oxygen (1O2).In the past few years, due to its high stability and long-life and high response, persulfate
(PS, S2O8 2-) generate sulfate radical furtherd investigate.PS, PMS and its final product sulfate ion (SO4 2-) to intrinsic
Biocenological damage is minimum.Therefore, the persulfate removal persistent organic pollutants of Recent study activation become master
Want focus.
In recent years, persulfate is applied to environmental pollution improvement, is activated using persulfate and generates SO4 ·-The difficult drop of degradation
Solving organic pollutant is the frontier having gradually developed both at home and abroad.Compared with OH, SO4 ·-Last a long time that (half-life period is
4s), and standard oxidationreduction potential is 2.5V, close with the OH of strong oxidizing property.The study found that in neutral conditions,
SO4 ·-Oxidation-reduction potential even it is more taller than OH, most persistent organic pollutants can be by SO4 ·-It is degradable.
Specific reaction equation such as (formula 1-3):
-OH+H++e-→H2(2.8V/NHE) (formula 1)
-OH+e-→OH-(1.8V/NHE) (formula 2)
Different from the mechanism of OH attack persistent organic pollutants, the realization of the oxidation of OH is by dropping to hardly possible
The addition or metalepsis of hydrogen in solution organic pollutant, and SO4 ·-Oxidation be by abstract hydrogen atoms or to unsaturated carbon
The modes such as upper offer electronics are realized.Specific reaction such as (formula 4-5):
(1) hydrogen atom extracts reaction:
(2) unsaturated bond addition reaction:
SO4 ·-Generation can be decomposed under the activation conditions such as heating, ultraviolet light, metal by persulfate.Persulfate
Including two kinds of persulfuric acid hydrogen salt (Peroxomonosulfate, PMS) and persulfate (Persulfate, PS).In practical application
In, there are mainly two types of the producing methods of potentiometric titrations, one is energy excitation decompose persulfate, mainly include luminous energy,
The modes such as thermal energy and ultrasound.Another way is that persulfate is decomposed in transition metal ions activation, such as bores ion Co2+, it is ferrous from
Sub- Fe2+, protect ion Ni+Deng.However both modes have the shortcomings that its respectively, energy excitation persulfate technology energy consumption is high,
Technical conditions are harsh, and metal toxicity brought by the transition metal introduced in transition metal activating technology then may cause it is secondary
Pollution, these factors all hinder extensive use of the persulfate technology in treatment of Organic Wastewater.
In addition, also there is researcher to study discovery persulfate using objects such as certain persistent organic pollutants in recent years
Also has the ability for generating active particle when matter, such as benzoquinones, persistent organic pollutants containing quinonyl, phenol also have activation over cure
Hydrochlorate generates free radicals or the strongly active groups such as singlet oxygen, but since quinones, phenols persistent organic pollutants itself are
Environmental contaminants, therefore carry out persulfate activation using it and lack practical application value and potentiality.
Summary of the invention
The technical problems to be solved by the invention are just to provide a kind of dithionite activation persulfate processing waste water
The method of middle persistent organic pollutants, the present invention carry out at normal temperatures and pressures, and reaction is mild, and no external energy is environmental-friendly,
It is easily operated, it is at low cost, there is very big application potential in field of environment pollution control.
Above-mentioned technical problem is solved, the present invention adopts the following technical scheme that:
A kind of method that dithionite activation persulfate handles persistent organic pollutants in waste water, it is characterized in that
The following steps are included:
Persulfate and dithionite are successively added into the waste water containing persistent organic pollutants, in room temperature item
It is reacted under part, the waste water that is purified that treated；The wherein molar ratio of the persistent organic pollutants in persulfate and waste water
For 1:1~500:1.
The persistent organic pollutants include Atrazine, three pyridine herbicides, bisphenol-A, Polychlorinated biphenyls, antibiosis
Element.
The dithionite are the (S of root containing hydrosulfurous acid2O4 2-) salt.
(the S of root containing hydrosulfurous acid2O4 2-) salt be sodium dithionite, potassium hyposulfite, low sulfurous acid
Sodium, low potassium sulfite, sodium hydrosulfite.
The persulfate is the (S of acid group containing over cure2O8 2-) or persulfuric acid hydrogen radical (HSO5 -) salt.
(the HSO of hydrogen radical containing persulfuric acid5 -) salt be one of potassium hydrogen persulfate, potassium hydrogen persulfate double salt.
The room temperature reaction condition is 10~50 DEG C.
The reaction pH condition is 2.0~9.0.The molar ratio that the dithionite are reacted with persulfate is 1:
500~4:1.
The reaction time be 0.5~for 24 hours.
In the method after the mixing of both persulfate and dithionite, wherein dithionite can activate and have
The persulfate of strong oxidizing property makes it generate potentiometric titrations (SO during the reaction4 ·-) and hydroxyl radical free radical (OH) etc.
The strongly active group of strongly active group, generation has apparent treatment effect to persistent organic pollutants.
Beneficial effect
(1) present invention is that dithionite activate persulfate technology, compared with current persulfate activating technology,
Low energy consumption, no metal toxicity bring health risk, without secondary pollution；
(2) present invention carries out at normal temperatures and pressures, and reaction is mild, and no external energy is environmental-friendly, easily operated, cost
It is low, to going persistent organic pollutants in water removal that there is good effect, there is very big application latent in field of environment pollution control
Power.
Detailed description of the invention
Fig. 1 is that dithionite activate persulfate degradation Atrazine effect diagram.
Specific embodiment
Present invention will be further explained below with reference to specific examples.
Embodiment 1: dithionite activate persulfate degradation organic wastewater containing Atrazine
Four opaque reaction vessels are taken, each addition contains 1 μm of ol/L Atrazine organic wastewater, pH in reactor thereto
7.2 are each about, reaction temperature is 30 DEG C, while being mixed slowly to four reactors, its homogeneous reaction is made；
Hydrogensulfite solution is added into reaction vessel 1 makes its concentration 0.2mmol/L, adds into reaction vessel 2
Entering potassium persulfate solution makes its concentration 0.5mmol/L, and hydrogensulfite solution and over cure is added simultaneously into reaction vessel 3
Sour potassium solution makes its concentration be respectively 0.2mmol/L and 0.5mmol/L, and reactor 4 is persistently anti-after progress 1h as blank control
It should be basically completed, rear to detect Atrazine residual concentration in waste water, testing result is as shown in the table:
1 dithionite of table activate persulfate oxidation and handle Atrazine
| Experiment numbers | Reactor 1 | Reactor 2 | Reactor 3 | Reactor 4 |
| Atrazine degradation rate % | 0 | 30.4 | 93.0 | 0 |
From the foregoing, it will be observed that individually dithionite are reacting in 1h to Atrazine without degradation；Individual over cure
Hydrochlorate is only 30.4% to the degradation efficiency of Atrazine in 1h；And when dithionite and persulfate is used in combination,
Atrazine degradation rate can be made up to 93% or more in reaction 1h.Illustrate that dithionite are dropped in persulfate oxidation difficulty
Solution organic pollutant process plays the role of being obviously promoted, and has activation to persulfate, Atrazine is made effectively to degrade,
Treatment effect is substantially better than the independent role of dithionite or persulfate.
Embodiment 2: dithionite activate persulfate degradation organic wastewater containing bisphenol-A
Four opaque reaction vessels are taken, each addition contains 2 μm of ol/L bisphenol-A organic wastewaters thereto, and pH is equal in reactor
About 4.0, reaction temperature is 30 DEG C, while being mixed slowly to four reactors, makes its homogeneous reaction；
Hydrogensulfite solution is added into reaction vessel 1 respectively makes its concentration 0.5mmol/L, to reaction vessel 2
Middle addition potassium persulfate solution makes its concentration 0.5mmol/L, into reaction vessel 3 simultaneously be added hydrogensulfite solution and
Potassium persulfate solution makes its concentration be 0.5mmol/L, and reactor 4 reacts basic after persistently carrying out 0.5h as blank control
It completes, rear to detect bisphenol-A residual concentration in waste water, testing result is as shown in the table:
2 dithionite of table activate persulfate oxidation and handle bisphenol-A
| Experiment numbers | Reactor 1 | Reactor 2 | Reactor 3 | Reactor 4 |
| Bisphenol-A degradation rate % | 0 | 6.78 | 98.7 | 0 |
From the foregoing, it will be observed that individually dithionite are reacting in 1h to bisphenol-A without degradation；Individual persulfate
It is only 6.78% to the degradation efficiency of bisphenol-A in 1h；And when dithionite and persulfate is used in combination, it is reacting
It can make bisphenol-A degradation rate up to 98.7% or more in 1h, illustrate dithionite in persulfate oxidation organic dirt difficult to degrade
Dye object process plays the role of being obviously promoted, and has activation to persulfate, so that bisphenol-A is effectively degraded, treatment effect is bright
The aobvious independent role for being better than dithionite or persulfate.
Embodiment 3: dithionite activate the persulfate degradation organic wastewater containing Atrazine of various concentration
Six opaque reaction vessels are taken, each addition contains 1 μm of ol/L Atrazine organic wastewater, pH in reactor thereto
7.2 are each about, reaction temperature is 30 DEG C, while being mixed slowly to six reactors, its homogeneous reaction is made；Respectively to reaction
Be added hydrogensulfite solution simultaneously in container 1 and potassium persulfate solution make its concentration be respectively 0.2mmol/L and
0.05mmol/L, hydrogensulfite solution and potassium persulfate solution are added into reaction vessel 2 makes its concentration be respectively
0.2mmol/L and 0.1 mmol/L, into reaction vessel 3, hydrogensulfite solution and potassium persulfate solution, which is added, makes it simultaneously
Concentration is 0.2 mmol/L, and hydrogensulfite solution and potassium persulfate solution, which is added, simultaneously into reaction vessel 4 keeps its dense
Degree is respectively 0.2 mmol/L and 0.4mmol/L, and hydrogensulfite solution and potassium peroxydisulfate is added simultaneously into reaction vessel 5
Solution makes its concentration be respectively 0.2mmol/L and 0.5mmol/L, and hydrogensulfite solution is added simultaneously into reaction vessel 6
Make its concentration be respectively 0.2mmol/L and 0.1mol/L with potassium persulfate solution, persistently reacts and be basically completed after progress 1h, it is rear to examine
Atrazine residual concentration in waste water is surveyed, testing result is as shown in the table:
3 dithionite of table activate persulfate oxidation and handle Atrazine
| Experiment numbers | Reactor 1 | Reactor 2 | Reactor 3 | Reactor 4 | Reactor 5 | Reactor 6 |
| Atrazine degradation rate % | 8.39 | 21.8 | 35.6 | 54.8 | 92.4 | 40.8 |
Under the conditions of identical dithionite dosage, with the increase of persulfate dosage, in same reaction item
Under part, after reaction carries out 1h, the degradation efficiency of Atrazine has the trend significantly improved, when dithionite and persulfuric acid
When salt molar ratio is 1:2.5, the degradation rate of Atrazine reaches 92.4% or more highest.
Embodiment 4: dithionite activation persulfate degradation organic wastewater containing Atrazine under different pH
Five opaque reaction vessels are taken, each addition contains 1 μm of ol/L Atrazine organic wastewater thereto, and reaction temperature is
30 DEG C, while mixing slowly to five reactors, make its homogeneous reaction, respectively the company of addition simultaneously into six reaction vessels
Sodium sulfite solution and potassium persulfate solution make its concentration be respectively 0.2mmol/L and 0.5mmol/L, use 0.1mol/L
NaOH solution and the dilute H of 0.1mol/L2SO4PH in 5 reactors is adjusted to 2.0,4.0,6.0,7.0,9.0 respectively, persistently carries out 1h
Reaction is basically completed afterwards, rear to detect Atrazine residual concentration in waste water, and testing result is as shown in the table:
4 dithionite of table activate persulfate oxidation and handle Atrazine
| Experiment numbers | Reactor 1 | Reactor 2 | Reactor 3 | Reactor 4 | Reactor 5 |
| Atrazine degradation rate % | 91.1 | 63.5 | 62.8 | 72.4 | 52.3 |
Under the conditions of differential responses pH, when system is in neutrality or is acid, activation of the dithionite to persulfate
Better effect is obvious, higher to the degradation rate of persistent organic pollutants Atrazine, but when pH changes between 2.0~9.0
When, activation system all has obvious degradation capability to Atrazine.
Embodiment 5: dithionite activate persulfate to practical organic wastewater with difficult degradation thereby mineralising research
Four opaque reaction vessels are taken, total reaction volume 100mL, respectively addition COD concentration is 2000mg/L thereto
Organic wastewater with difficult degradation thereby, pH is each about 7.2 in reactor, and reaction temperature is 30 DEG C, while carrying out at a slow speed to four reactors
Stirring, makes its homogeneous reaction；Hydrogensulfite solution is added into reaction vessel 1 respectively makes its concentration 0.5g/L, to anti-
It answers in container 2 and potassium persulfate solution is added, hydrogensulfite solution and potassium persulfate solution is added simultaneously into reaction vessel 3
Making its concentration is 0.5g/L, and reactor 4 is persistently reacted after progress 1h and is basically completed as blank control, rear to detect in waste water
Remaining TOC concentration, testing result are as shown in the table:
5 dithionite of table activate persulfate oxidation and handle Atrazine
| Experiment numbers | Reactor 1 | Reactor 2 | Reactor 3 | Reactor 4 |
| TOC mineralization rate % | 20.9 | 30.8 | 55.7 | 0 |
Individual dithionite are about 20.9% to actual waste water TOC mineralization rate in reaction 1h；Individual over cure
Hydrochlorate is in 1h to being about 30.8% to actual waste water TOC mineralization rate；And dithionite and persulfate are used in combination
When, actual waste water TOC mineralization rate can be made to be about 55.7% in reaction 1h, illustrate dithionite in persulfate oxygen
Change persistent organic pollutants process to play the role of being obviously promoted, there is activation to persulfate, makes practical difficult to degrade useless
The effective mineralising of water, treatment effect are substantially better than the independent role of dithionite or persulfate.
Embodiment 6: dithionite activate persulfate degradation organic wastewater containing Atrazine
Four opaque reaction vessels are taken, each addition contains 1 μm of ol/L Atrazine organic wastewater thereto, wherein persulfuric acid
The molar ratio of persistent organic pollutants in salt and waste water is 1:1, and pH is each about 2.0 in reactor, and reaction temperature is 10 DEG C,
Four reactors are mixed slowly simultaneously, make its homogeneous reaction；
Hydrogensulfite solution is added into reaction vessel 1 makes 1 μm of ol/L of its concentration, is added into reaction vessel 2
Potassium persulfate solution makes its concentration 0.5mmol/L, and hydrogensulfite solution and persulfuric acid is successively added into reaction vessel 3
Potassium solution makes 1 μm of ol/L and 0.5mmol/L of its concentration, and reactor 4 reacts basic after persistently carrying out 0.5h as blank control
It completes, rear to detect Atrazine residual concentration in waste water, testing result is as shown in the table:
6 dithionite of table activate persulfate oxidation and handle Atrazine
| Experiment numbers | Reactor 1 | Reactor 2 | Reactor 3 | Reactor 4 |
| Atrazine degradation rate % | 0 | 15.6 | 48.4 | 0 |
Embodiment 7: dithionite activate persulfate degradation organic wastewater containing Atrazine
Four opaque reaction vessels are taken, each addition contains 1 μm of ol/L Atrazine organic wastewater thereto, wherein persulfuric acid
The molar ratio of persistent organic pollutants in salt and waste water is 500:1, and pH is each about 9.0 in reactor, reaction temperature 50
DEG C, while four reactors are mixed slowly, make its homogeneous reaction；
Hydrogensulfite solution is added into reaction vessel 1 makes its concentration 2mmol/L, is added into reaction vessel 2
Potassium persulfate solution makes its concentration 0.5mmol/L, and hydrogensulfite solution and persulfuric acid is successively added into reaction vessel 3
Potassium solution makes its concentration be respectively 2mmol/L and 0.5mmol/L, and reactor 4 is persistently reacted afterwards for 24 hours as blank control
It is basically completed, rear to detect Atrazine residual concentration in waste water, testing result is as shown in the table:
7 dithionite of table activate persulfate oxidation and handle Atrazine
| Experiment numbers | Reactor 1 | Reactor 2 | Reactor 3 | Reactor 4 |
| Atrazine degradation rate % | 0 | 78.2 | 82.1 | 0 |
Claims (10)
1. a kind of method of persistent organic pollutants in dithionite activation persulfate processing waste water, it is characterized in that packet
Include following steps:
Into the waste water containing persistent organic pollutants, dithionite are first added, persulfate is added afterwards, in room temperature item
It is reacted under part, wherein the molar ratio of persulfate and persistent organic pollutants in waste water is 1:1~500:1.
2. persistent organic pollutants in dithionite activation persulfate processing waste water according to claim 1
Method, it is characterised in that: the persistent organic pollutants include Atrazine, three pyridine herbicides, bisphenol-A, more chlorine connection
Benzene and antibiotic.
3. persistent organic pollutants in dithionite activation persulfate processing waste water according to claim 1
Method, it is characterised in that: the dithionite are the salt of the root containing hydrosulfurous acid.
4. persistent organic pollutants in dithionite activation persulfate processing waste water according to claim 3
Method, it is characterised in that: the salt of the root containing hydrosulfurous acid is sodium dithionite, potassium hyposulfite, low sulfurous
Sour sodium, low potassium sulfite and sodium hydrosulfite.
5. persistent organic pollutants in dithionite activation persulfate processing waste water according to claim 1
Method, it is characterised in that: the persulfate is the salt of acid group containing over cure or persulfuric acid hydrogen radical.
6. persistent organic pollutants in dithionite activation persulfate processing waste water according to claim 5
Method, it is characterised in that: the salt of hydrogen radical containing persulfuric acid is one of potassium hydrogen persulfate, potassium hydrogen persulfate double salt.
7. persistent organic pollutants in dithionite activation persulfate processing waste water according to claim 1
Method, it is characterised in that: the room temperature reaction condition is 10~50 DEG C.
8. persistent organic pollutants in dithionite activation persulfate processing waste water according to claim 1
Method, it is characterised in that: the reaction pH condition is 2.0~9.0.
9. persistent organic pollutants in dithionite activation persulfate processing waste water according to claim 1
Method, it is characterised in that: the molar ratio that the dithionite are reacted with persulfate is 1:500~4:1.
10. persistent organic pollutants in dithionite activation persulfate processing waste water according to claim 1
Method, it is characterised in that: the reaction time be 0.5~for 24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464111.2A CN109987693A (en) | 2018-12-03 | 2018-12-03 | The method that dithionite activate persistent organic pollutants in persulfate processing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464111.2A CN109987693A (en) | 2018-12-03 | 2018-12-03 | The method that dithionite activate persistent organic pollutants in persulfate processing waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109987693A true CN109987693A (en) | 2019-07-09 |
Family
ID=67128676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811464111.2A Pending CN109987693A (en) | 2018-12-03 | 2018-12-03 | The method that dithionite activate persistent organic pollutants in persulfate processing waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109987693A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158976A (en) * | 2020-08-20 | 2021-01-01 | 哈尔滨工业大学（深圳） | Method for treating micro-polluted water |
| CN112624298A (en) * | 2020-12-29 | 2021-04-09 | 四川大学 | Advanced treatment process and system for sewage |
| CN114380384A (en) * | 2022-01-18 | 2022-04-22 | 东华大学 | Method for purifying water by activating peroxymonosulfate with ferric salt and polyphenol compounds |
| CN115254938A (en) * | 2022-08-08 | 2022-11-01 | 大连理工大学 | Method for degrading organic pollutants by efficiently activating persulfate through regulating iron-based material by using reduced sulfur |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6663781B1 (en) * | 1998-05-14 | 2003-12-16 | U.S. Environmental Protection Agency | Contaminant adsorption and oxidation via the Fenton reaction |
| CN101973622A (en) * | 2010-10-19 | 2011-02-16 | 哈尔滨工业大学 | Method for accelerating monopersulfate and persulfate to produce free sulfate radicals |
| WO2016111739A1 (en) * | 2015-01-06 | 2016-07-14 | Ecolab Usa Inc. | Process for removal of selenium from water by dithionite ions |
| CN106966481A (en) * | 2017-05-17 | 2017-07-21 | 吉林大学 | The method that in-situ reducing repairs Polluted Groundwater |
| CN206635096U (en) * | 2017-04-17 | 2017-11-14 | 哈尔滨工业大学水资源国家工程研究中心有限公司 | The device of ferrous ion activation persulfate pretreatment lifting milipore filter water purification efficiency |
-
2018
- 2018-12-03 CN CN201811464111.2A patent/CN109987693A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6663781B1 (en) * | 1998-05-14 | 2003-12-16 | U.S. Environmental Protection Agency | Contaminant adsorption and oxidation via the Fenton reaction |
| CN101973622A (en) * | 2010-10-19 | 2011-02-16 | 哈尔滨工业大学 | Method for accelerating monopersulfate and persulfate to produce free sulfate radicals |
| WO2016111739A1 (en) * | 2015-01-06 | 2016-07-14 | Ecolab Usa Inc. | Process for removal of selenium from water by dithionite ions |
| CN206635096U (en) * | 2017-04-17 | 2017-11-14 | 哈尔滨工业大学水资源国家工程研究中心有限公司 | The device of ferrous ion activation persulfate pretreatment lifting milipore filter water purification efficiency |
| CN106966481A (en) * | 2017-05-17 | 2017-07-21 | 吉林大学 | The method that in-situ reducing repairs Polluted Groundwater |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158976A (en) * | 2020-08-20 | 2021-01-01 | 哈尔滨工业大学（深圳） | Method for treating micro-polluted water |
| CN112624298A (en) * | 2020-12-29 | 2021-04-09 | 四川大学 | Advanced treatment process and system for sewage |
| CN112624298B (en) * | 2020-12-29 | 2022-02-18 | 四川大学 | Advanced treatment process and system for sewage |
| CN114380384A (en) * | 2022-01-18 | 2022-04-22 | 东华大学 | Method for purifying water by activating peroxymonosulfate with ferric salt and polyphenol compounds |
| CN115254938A (en) * | 2022-08-08 | 2022-11-01 | 大连理工大学 | Method for degrading organic pollutants by efficiently activating persulfate through regulating iron-based material by using reduced sulfur |
| CN115254938B (en) * | 2022-08-08 | 2023-11-21 | 大连理工大学 | Method for efficiently activating persulfate to degrade organic pollutants by reducing sulfur to regulate iron-based material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109987693A (en) | The method that dithionite activate persistent organic pollutants in persulfate processing waste water | |
| Plant et al. | Hydrogen peroxide: a potent force to destroy organics in wastewater | |
| EP2927197A1 (en) | System for treating coal gasification wastewater, and method for treating coal gasification wastewater | |
| CN107298478B (en) | A kind of method of beta- lactam antibiotics in fast degradation water | |
| Shokri et al. | Treatment of aqueous solution containing acid red 14 using an electro peroxone process and a box-Behnken experimental design | |
| Liu et al. | Intimately coupled photocatalysis and biodegradation for effective simultaneous removal of sulfamethoxazole and COD from synthetic domestic wastewater | |
| CN106396185B (en) | A kind of processing method of sulphide-containing waste water | |
| CN101659483A (en) | Method for treating high-concentrated non-degradable wastewater by using wastewater containing hydrogen peroxide | |
| Wahyuni et al. | Photodegradation of detergent anionic surfactant in wastewater using UV/TiO2/H2O2 and UV/Fe2+/H2O2 processes | |
| CN113185021B (en) | Method for degrading bisphenol A in water based on nano flaky copper oxide | |
| CN110015744A (en) | Strengthen Fenton/class Fenton's reaction system removal water pollutant method using free chlorine | |
| CN104445576B (en) | A kind of organic pollutant oxidation treatment method based on sulphur oxyradical | |
| CN110467251A (en) | A kind of composite water treatment agent and the preparation method and application thereof | |
| CN114433161B (en) | Composite material for efficiently activating monopersulfate, and preparation method and application thereof | |
| Simion et al. | Enhancing the Fenton process by UV light applied in textile wastewater treatment. | |
| CN113772802B (en) | Method for degrading bisphenol A in water by using manganese oxide modified copper-manganese spinel | |
| CN109368764A (en) | A kind of method for treating water for strengthening persulfate oxidation | |
| CN105800765A (en) | Application of EHP | |
| Meghwal et al. | Chemical and Biological Treatment of Dyes | |
| CN111392845A (en) | Composition for degrading organic pollutants as well as preparation method and application thereof | |
| CN110835178A (en) | Method for directly oxidizing and degrading aniline organic pollutants in water | |
| WO2004058647A1 (en) | Wastewater disposal agent and process for preparing thereof | |
| CN113603205B (en) | Method for accelerating degradation of organic pollutants by potassium permanganate | |
| Simona et al. | Application of potassium ferrate (VI) for oxidation of selected pollutants in aquatic environment–short review | |
| CN105036447A (en) | Method of removing sulfate radical and hexavalent chromium from industrial waste water through sulfate reducting bacteria activated sludge-[alpha]-Fe2O3 coupling process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |