CN103130368A - Treatment method for rapid degradation of power plant citric acid boiler cleaning waste water - Google Patents
Treatment method for rapid degradation of power plant citric acid boiler cleaning waste water Download PDFInfo
- Publication number
- CN103130368A CN103130368A CN2013100682650A CN201310068265A CN103130368A CN 103130368 A CN103130368 A CN 103130368A CN 2013100682650 A CN2013100682650 A CN 2013100682650A CN 201310068265 A CN201310068265 A CN 201310068265A CN 103130368 A CN103130368 A CN 103130368A
- Authority
- CN
- China
- Prior art keywords
- waste water
- power plant
- citric acid
- acid cleaning
- boiler waste
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to a treatment method for rapid degradation of power plant citric acid boiler cleaning waste water, which comprises the following steps: adding an adsorption saturation active carbon in the power plant citric acid boiler cleaning waste water; adjusting the pH value of 3.00-3.10 of the power plant citric acid boiler cleaning waste water; placing the power plant citric acid boiler cleaning waste water with adjusted pH value under the sunshine, stirring with rotating speed of 200-300r/min; slowly adding 30wt% of hydrogen peroxide in the power plant citric acid boiler cleaning waste water drop by drop; determining the pH value of the power plant citric acid boiler cleaning waste water every 1 hour and adjusting the pH value to 3.60-3.80; decreasing 45-55% of C0 DCr of the power plant citric acid boiler cleaning waste water after 4-8 hours under sunshine, and then rapidly degrading the power plant citric acid boiler cleaning waste water. Compared with the prior art, a few of hydrogen peroxide and the power plant water processing system adsorption saturation active carbon can be added in the power plant citric acid boiler cleaning waste water, the pH value of waste water can be adjusted, and the organic matter photodegradation process can be greatly accelerated.
Description
Technical field
The present invention relates to a kind of method of wastewater treatment, especially relate to the treatment process of a kind of fast degradation power plant citric acid cleaning boiler waste water.
Background technology
Citric acid pickling, because of its cleaning performance better, to clean cost lower, and is widely used in matting industry.Power plant's citric acid wastewater, organic concentration are very high, and general 2-3 just discharges once, the primary emission amount is hundreds of kiloton, COD of even going up
CrSurpass 10000mg/L, total iron content (Fe
2+And Fe
3+) be 2000-5000mg/L, biodegradability (BOD
5/ COD
Cr) being about 0.3 left and right, how it efficiently processes one of difficult problem that always is puzzlement power plant and cleaning industry.More for the processing research of citric acid wastewater in recent years, and produced many comparatively ripe method of chemical treatment and bioremediations, wherein chemical method comprises boiler burning method, fly ash adsorption, neutralization precipitation facture, sodium hypochlorite oxidization and aeration oxidation process etc.; Bioremediation comprises fixed bed continuous flow reactor Anaerobic biotreatment method, activated sludge process, anaerobic digestion etc.But, all there is certain weak point in these methods, and are as high in processing costs, cause secondary pollution, affect body of heater and increase the disadvantages such as coal consumption, thereby limited its development and application in practice.
Research [Zhang Chao is arranged, Wang Luochun, Liu Kejia. detachable mineralized refuse bioreactor treatment of Power citric acid wastewater. the environmental engineering journal, 2008,2 (11): 1461-1464] show, citric acid boiler acid pickling waste water is under natural sunlight illumination in storage pool, when the light application time sufficiently long, and its COD
Cr50.0% left and right can descend.
Summary of the invention
Purpose of the present invention is exactly the treatment process that simple, the easy to operate fast degradation power plant citric acid cleaning boiler waste water of a kind of technique is provided in order to overcome the defective that above-mentioned prior art exists.
Purpose of the present invention can be achieved through the following technical solutions:
The treatment process of a kind of fast degradation power plant citric acid cleaning boiler waste water comprises the following steps:
(1) add gac in power plant's citric acid cleaning boiler waste water;
The pH value of (2) regulating power plant's citric acid cleaning boiler waste water is 3.00～3.10;
Power plant's citric acid cleaning boiler waste water that (3) will regulate the pH value is placed under solar irradiation, and stirs with the rotating speed of 200～300r/min;
(4) dropwise slowly add the hydrogen peroxide of 30wt% in power plant's citric acid cleaning boiler waste water;
(5) measure the pH value of power plant's citric acid cleaning boiler waste water and it is adjusted to 3.60～3.80 every 1h;
(6) COD of power plant's citric acid cleaning boiler waste water
CrDescend 45～55% after illumination 4～8h, power plant's citric acid cleaning boiler waste water obtains fast degradation.
Described gac is that the saturated gac of power plant's absorption is through washing and dry the gac that obtains after 4h.
Adding the amount of gac in every liter of power plant's citric acid cleaning boiler waste water is 2～8g.
The solution of regulating power plant's citric acid cleaning boiler waste water ph is the NaOH solution of 1mol/L.
Contain ferrous ion, ferric ion and citric acid in described waste water.
The mechanism that the present invention utilizes hydrogen peroxide and the saturated gac of absorption to accelerate power plant's citric acid cleaning boiler waste water photocatalytic degradation speed is:
Total iron content (Fe in power plant's citric acid cleaning boiler waste water
2+And Fe
3+) be 2000-5000mg/L, the photodissociation under solar radiation of Fe (III)-citric acid compound has generated the organism such as 3-keto-glutaric acid, etheric acid and acetic acid, simultaneously Fe
3+Be converted into Fe
2+Thereby, caused waste water COD
CrSignificantly descend.Generate Fe in the hydrogen peroxide that adds and reaction
2+Formed Fenton reagent, Fenton reagent can shorten waste water photodegradation process to the oxygenizement of citric acid.Concrete reaction is as follows:
Gac (AC) can catalyzing hydrogen peroxide (H
2O
2) discharge the free radical (HO of strong oxidizing property
2And HO), a lot of organic pollution materials of free radical degradable.Concrete reaction is as follows:
(ACsurface)-OH+H
+OOH
-→(ACsurface)-OOH+H
2O
(ACsurface)-OOH+H
2O
2→(ACsurface)-OH+H
2O+O
2
AC+H
2O
2→AC
++OH
-+·OH
AC
++H
2O
2→AC+HO
2·+H
+
And before dropwise slowly the adding, react of hydrogen peroxide and in reaction process every the pH regulator of 1h, can be with Fenton reagent and AC/H
2O
2The control from view of profit of system oxidation of organic compounds reduces costs in higher level.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) technique of the present invention is simple, does not need complicated step and expensive equipment;
(2) the present invention adds a small amount of hydrogen peroxide and water treatment of power plant system absorption saturated activity charcoal in power plant's citric acid cleaning boiler waste water, and the pH value of regulating simultaneously waste water makes power plant's citric acid cleaning boiler waste water COD
CrAfter illumination 6h, decline 47.3% left and right, accelerate organism photodegradation process greatly;
(3) the present invention recycles the saturated gac of water treatment of power plant system's absorption, has reduced widely processing cost.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.
Embodiment 1
Power plant's citric acid cleaning boiler waste water in the present embodiment is the artificial distribution, adopts to add appropriate Fe (NO in tap water
3)
39H
2The method of O and citric acid is formulated, its COD
CrBe 14300mg/L, Fe
3+Content is 2270mg/L.Wherein 30% hydrogen peroxide, Fe (NO
3)
39H
2O and citric acid are analytical reagent.
The first step: the dosage of the gac after oven dry 4h with 5g/L is joined in waste water;
Second step: regulating waste water ph with the NaOH solution of 1mol/L is 3.00～3.10;
The 3rd step: the waste water that will regulate pH value is placed under solar simulator and stirs unlatching simulated solar device with the rotating speed of 200r/min; Wherein the simulated solar device is xenon source PLS SXE300C;
The 4th step: immediately dropwise slowly average rate add 30% hydrogen peroxide, the add-on of 6h hydrogen peroxide is 13.6ml/L;
The 5th step: measure waste water ph and it is adjusted to 3.60-3.80 every 1h.
Can reach the purpose of effectively degrading fast after illumination 6h, COD
CrDrop to 7540mg/L, clearance reaches 47.3%.After this, prolonging light time, waste water COD
CrAlmost remain unchanged.And under the same terms, only utilize the same waste water of solar simulator illumination, do not add gac and hydrogen peroxide and do not regulate pH, its COD
CrClearance is only 14.1%.And deposit in waste water in storage pool, and in natural sunlight illumination after 5 months, its COD
CrClearance is only 46.7%.Present method adds a small amount of hydrogen peroxide and water treatment of power plant system absorption saturated activity charcoal in the waste water, and the pH value of regulating simultaneously waste water makes this type of waste water COD
CrDescend 47.3% after illumination 6h, greatly accelerate organism photodegradation process.
Embodiment 2
The treatment process of a kind of fast degradation power plant citric acid cleaning boiler waste water comprises the following steps:
(1) add gac in power plant's citric acid cleaning boiler waste water, wherein gac is the saturated gac of water treatment of power plant system's absorption, and processes through washing and oven dry 4h, and adding the amount of gac in every liter of power plant's citric acid cleaning boiler waste water is 2g;
The pH value of (2) regulating power plant's citric acid cleaning boiler waste water is 3.00～3.10;
Power plant's citric acid cleaning boiler waste water that (3) will regulate the pH value is placed under solar irradiation, and stirs with the rotating speed of 200r/min;
(4) dropwise slowly add the hydrogen peroxide of 30wt% in power plant's citric acid cleaning boiler waste water;
(5) measure the pH value of power plant's citric acid cleaning boiler waste water and it is adjusted to 3.60～3.80 every 1h;
(6) COD of power plant's citric acid cleaning boiler waste water
CrDescend 45% after illumination 4h, power plant's citric acid cleaning boiler waste water obtains fast degradation.
Wherein, the middle solution of regulating power plant's citric acid cleaning boiler waste water ph of step (2) or step (4) is the NaOH solution of 1mol/L.
Embodiment 3
The treatment process of a kind of fast degradation power plant citric acid cleaning boiler waste water comprises the following steps:
(1) add gac in power plant's citric acid cleaning boiler waste water, wherein gac is the saturated gac of water treatment of power plant system's absorption, and processes through washing and oven dry 4h, and adding the amount of gac in every liter of power plant's citric acid cleaning boiler waste water is 5g;
The pH value of (2) regulating power plant's citric acid cleaning boiler waste water is 3.00～3.10;
Power plant's citric acid cleaning boiler waste water that (3) will regulate the pH value is placed under solar irradiation, and stirs with the rotating speed of 250r/min;
(4) dropwise slowly add the hydrogen peroxide of 30wt% in power plant's citric acid cleaning boiler waste water, in 6h, adding the amount of hydrogen peroxide in every liter of power plant's citric acid cleaning boiler waste water is 13.6ml;
(5) measure the pH value of power plant's citric acid cleaning boiler waste water and it is adjusted to 3.60～3.80 every 1h;
(6) COD of power plant's citric acid cleaning boiler waste water
CrDescend 48% after illumination 6h, power plant's citric acid cleaning boiler waste water obtains fast degradation.
Wherein, the middle solution of regulating power plant's citric acid cleaning boiler waste water ph of step (2) or step (4) is the NaOH solution of 1mol/L.
Embodiment 4
The treatment process of a kind of fast degradation power plant citric acid cleaning boiler waste water comprises the following steps:
(1) add gac in power plant's citric acid cleaning boiler waste water, wherein gac is the saturated gac of water treatment of power plant system's absorption, and processes through washing and oven dry 4h, and adding the amount of gac in every liter of power plant's citric acid cleaning boiler waste water is 8g; The pH value of (2) regulating power plant's citric acid cleaning boiler waste water is 3.00～3.10; Power plant's citric acid cleaning boiler waste water that (3) will regulate the pH value is placed under solar irradiation, and stirs with the rotating speed of 300r/min; (4) dropwise slowly add the hydrogen peroxide of 30wt% in power plant's citric acid cleaning boiler waste water, in 6h, adding the amount of hydrogen peroxide in every liter of power plant's citric acid cleaning boiler waste water is 13.6ml; (5) measure the pH value of power plant's citric acid cleaning boiler waste water and it is adjusted to 3.60～3.80 every 1h; (6) COD of power plant's citric acid cleaning boiler waste water
CrDescend 55% after illumination 8h, power plant's citric acid cleaning boiler waste water obtains fast degradation.
Wherein, the middle solution of regulating power plant's citric acid cleaning boiler waste water ph of step (2) or step (4) is the NaOH solution of 1mol/L.
Claims (5)
1. the treatment process of a fast degradation power plant citric acid cleaning boiler waste water, is characterized in that, the method comprises the following steps:
(1) add gac in power plant's citric acid cleaning boiler waste water;
The pH value of (2) regulating power plant's citric acid cleaning boiler waste water is 3.00～3.10;
Power plant's citric acid cleaning boiler waste water that (3) will regulate the pH value is placed under solar irradiation, and stirs with the rotating speed of 200～300r/min;
(4) dropwise slowly add the hydrogen peroxide of 30wt% in power plant's citric acid cleaning boiler waste water;
(5) measure the pH value of power plant's citric acid cleaning boiler waste water and it is adjusted to 3.60～3.80 every 1h;
(6) COD of power plant's citric acid cleaning boiler waste water
CrDescend 45～55% after illumination 4～8h, power plant's citric acid cleaning boiler waste water obtains fast degradation.
2. the treatment process of a kind of fast degradation according to claim 1 power plant citric acid cleaning boiler waste water, is characterized in that, described gac is the saturated gac of water treatment of power plant system's absorption.
3. the treatment process of a kind of fast degradation according to claim 1 power plant citric acid cleaning boiler waste water, is characterized in that, adding the amount of gac in every liter of power plant's citric acid cleaning boiler waste water is 2～8g.
4. the treatment process of a kind of fast degradation according to claim 1 power plant citric acid cleaning boiler waste water, is characterized in that, the solution of regulating power plant's citric acid cleaning boiler waste water ph is the NaOH solution of 1mol/L.
5. the treatment process of a kind of fast degradation according to claim 1 and 2 power plant citric acid cleaning boiler waste water, is characterized in that, contains ferrous ion, ferric ion and citric acid in described waste water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100682650A CN103130368A (en) | 2013-03-04 | 2013-03-04 | Treatment method for rapid degradation of power plant citric acid boiler cleaning waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100682650A CN103130368A (en) | 2013-03-04 | 2013-03-04 | Treatment method for rapid degradation of power plant citric acid boiler cleaning waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103130368A true CN103130368A (en) | 2013-06-05 |
Family
ID=48490884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100682650A Pending CN103130368A (en) | 2013-03-04 | 2013-03-04 | Treatment method for rapid degradation of power plant citric acid boiler cleaning waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103130368A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698757A (en) * | 2017-02-15 | 2017-05-24 | 上海浦东路桥建设股份有限公司 | Method for catalyzing hydrogen peroxide by using saturated activated carbon to enhance Fenton treatment of dye wastewater |
| CN107445341A (en) * | 2017-08-29 | 2017-12-08 | 上海电力学院 | The integrated processing system and processing method of one kind of multiple power plant's cleaning waste water |
| CN108002649A (en) * | 2017-12-01 | 2018-05-08 | 欣格瑞（山东）环境科技有限公司 | Mobile detachable citric acid cleaning wastewater treatment equipment and wastewater treatment method |
-
2013
- 2013-03-04 CN CN2013100682650A patent/CN103130368A/en active Pending
Non-Patent Citations (4)
| Title |
|---|
| 《化学进展》 20101031 杨鑫等 "活性炭催化过氧化物高级氧化技术降解水中有机污染物" 第2072页第1.1节和1.2.1节 1-5 第22卷, 第10期 * |
| 《电力环境保护》 19910531 桑敏慧等 "火力发电厂锅炉柠檬酸酸洗废液处理方法的探索" 第13-17页 1-5 第7卷, 第2期 * |
| 杨鑫等: ""活性炭催化过氧化物高级氧化技术降解水中有机污染物"", 《化学进展》 * |
| 桑敏慧等: ""火力发电厂锅炉柠檬酸酸洗废液处理方法的探索"", 《电力环境保护》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698757A (en) * | 2017-02-15 | 2017-05-24 | 上海浦东路桥建设股份有限公司 | Method for catalyzing hydrogen peroxide by using saturated activated carbon to enhance Fenton treatment of dye wastewater |
| CN107445341A (en) * | 2017-08-29 | 2017-12-08 | 上海电力学院 | The integrated processing system and processing method of one kind of multiple power plant's cleaning waste water |
| CN107445341B (en) * | 2017-08-29 | 2019-10-18 | 上海电力学院 | The integrated processing system and processing method of one kind of multiple power plant's cleaning waste water |
| CN108002649A (en) * | 2017-12-01 | 2018-05-08 | 欣格瑞（山东）环境科技有限公司 | Mobile detachable citric acid cleaning wastewater treatment equipment and wastewater treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Fu et al. | Comparison of alkyl xanthates degradation in aqueous solution by the O3 and UV/O3 processes: efficiency, mineralization and ozone utilization | |
| CN107311291A (en) | The method of sulfite oxidation degraded organic pollutants is combined using heterogeneous iron-based material under aeration condition | |
| Adishkumar et al. | Coupled solar photo-fenton process with aerobic sequential batch reactor for treatment of pharmaceutical wastewater | |
| CN108176403B (en) | Co-loaded activated carbon fiber3O4Method for preparing catalytic material | |
| CN104609665A (en) | Glyphosate-producing wastewater treatment integration technology | |
| CN110563191B (en) | Method for removing organic micropollutants in drinking water by utilizing persulfate reinforced ferric salt coagulation process | |
| CN105502839A (en) | Wastewater treatment system for livestock and poultry breeding | |
| CN101973668B (en) | Acrylic acid industry wastewater treatment process | |
| CN109867325A (en) | A kind of ultraviolet light auxiliary ferrous sulfate catalysis persulfate organic wastewater treatment process | |
| CN104787949A (en) | Method and device for treating refuse leachate through photoelectric Fenton oxidation reaction based on modified gas diffusion electrode | |
| CN104030531B (en) | Photoelectricity composite biological processing method and reactor thereof | |
| CN103130368A (en) | Treatment method for rapid degradation of power plant citric acid boiler cleaning waste water | |
| CN113772802B (en) | Method for degrading bisphenol A in water by using manganese oxide modified copper-manganese spinel | |
| Deng et al. | Energy-neutral municipal wastewater treatment based on partial denitrification-anammox driven by side-stream sulphide | |
| CN104150729B (en) | The sludge treating system of a kind of high efficient resourcing and low pollution emission and method | |
| CN204342609U (en) | A kind of refractory organic industrial sewage treatment system | |
| CN103482718A (en) | Method for degrading dienestrol in water body through electron beam irradiation | |
| CN110745998A (en) | Composite material for removing algae-derived odor substances in black and odorous water body and preparation method and application thereof | |
| CN105060656A (en) | Biochemical system auxiliary device and application thereof | |
| CN103449598A (en) | Treatment method of ethylene diamine tetraacetic acid (EDTA) boiler cleaning wastewater of power plant | |
| CN205892984U (en) | Production life effluent disposal system of photovoltaic energy enterprise | |
| CN101704610A (en) | Method for processing waste water from production of D-(-)-alpha-aminophenylacetic acid medicinal intermediate by electron beam irradiation | |
| Wang et al. | Evaluation of performance, extracellular polymeric substances, reactive oxygen species and lactate dehydrogenase in a combined ultraviolet/Fenton-sequencing batch reactor at the co-selective pressure of divalent zinc and diclofenac | |
| CN202945098U (en) | Micro-power micro-charge sewage treatment device | |
| CN104355466A (en) | Purification treatment process of methoxylation wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130605 |