CN104528949A - Process for treating desulfurization wastewater of power plant - Google Patents
Process for treating desulfurization wastewater of power plant Download PDFInfo
- Publication number
- CN104528949A CN104528949A CN201410825553.0A CN201410825553A CN104528949A CN 104528949 A CN104528949 A CN 104528949A CN 201410825553 A CN201410825553 A CN 201410825553A CN 104528949 A CN104528949 A CN 104528949A
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- atcc
- sewage
- rhodococcus
- bacillus cereus
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/341—Consortia of bacteria
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
Abstract
The invention belongs to the field of wastewater treatment and specifically disclosesrocess for treating desulfurization wastewater of a power plant. The process comprises the steps of preparing a biological preparation and treating the wastewater, wherein thiobacillus denitrificans, bacillus cereus, baumanii, rhodococcus and pseudomonas fluorescens are used. The process disclosed by the invention is suitable for treating the desulfurization wastewater of the power plant and can be used for effectively removing sulfur-containing compounds and industrial COD.
Description
Technical field
The invention belongs to sewage treatment area, be specifically related to a kind of technique processing power station Waste Water Containing Sulfur.
Background technology
Thermal power plant is called for short in fuel-burning power plant, utilize coal, oil, Sweet natural gas as the factory of fuel production electric energy, its basic process of production is: fuel in the boiler combustion heating water makes into steam, the converts chemical energy of fuel is become heat energy, vapor pressure pushing turbine rotates, thermal power transfer becomes mechanical energy, and then steam turbine drive electrical generators rotates, and mechanical energy is become electric energy.Wingdale or gypsum wet flue gas desulfurizing technique are in various flue gas desulfurization technique, and with its technology maturation, adapt to that coal is wide, desulfuration efficiency advantages of higher, the rate of utilization in practical engineering application is higher.But, utilize this method to carry out in the process of desulfurization, inevitably produce a certain amount of containing high concentration sulfate, sulphite, various heavy and suspended substance, and the Waste Water Containing Sulfur that pH value is lower.Because Waste Water Containing Sulfur character is special, power plant has to drop into substantial contribution and arranges independently Sewage treatment systems and carry out individual curing to it, directly be discharged in environment if not being further processed it, meeting severe contamination power plant surrounding enviroment are also detrimental to health, and can restrict electric power enterprise " green " development.
Waste Water Containing Sulfur is the discharge water on absorption tower in Wingdale or gypsum wet flue gas desulfurizing process mainly, it is the balance in order to maintain desulfurizer serum recycle system material, prevent the concentration of soluble material in boiler smoke from exceeding prescribed value and ensureing gypsum quality, the sewage that must discharge from gypsum dehydration and cleaning system.Impurity in Waste Water Containing Sulfur is mainly derived from flue gas and sweetening agent.At present, domestic and international thermal power plant adopts neutralization, precipitation, flocculation agent to concentrate and process with the conventional physical chemical process clarified to the sewage after wet process of FGD usually, though these methods have in varying degrees investment little, run convenient, there is the advantages such as certain treatment effect, ubiquity is less economical, processing efficiency is low, easily cause the shortcomings such as secondary pollution.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of technique processing power station Waste Water Containing Sulfur, to solve the problem of the process difficulty of Waste Water Containing Sulfur, and overcome conventional physical chemical process processing cost high, easily cause the shortcomings such as secondary pollution.
The technical scheme that the present invention takes comprises the following steps:
Process a technique for power station Waste Water Containing Sulfur, it comprises the steps:
Prepare biotechnological formulation: thiobacillus denitrificans, bacillus cereus, Acinetobacter bauamnnii, rhodococcus, Pseudomonas fluorescens being trained respectively concentration is 1 × 10
8the bacterium liquid of individual/ml, mixes according to the volume ratio of 3:2:2:1:1, then compares mixing and stirring with carrier according to the quality of 1:2,100 turns/min stirs 3min, finally carries out cryodrying, and drying temperature is 20-22 DEG C, after dry, water content is 6-8%, to obtain final product; Described carrier is prepared as follows and forms: the particle diameter first controlling diatomite and chitosan is 100-200 order, then diatomite and chitosan is mixed according to the mass ratio of 1:1, to obtain final product;
Dispose of sewage: the pH of adjustment sewage is 7.0-7.5; Then add 20 grams of biotechnological formulations according to every cubic metre of sewage at every turn, add 1 every day, after adding three days continuously, then leave standstill one week, liquid is filtered by plate filter, finally discharges.
Preferably,
Described thiobacillus denitrificans (Thiobacillus denitrificans) is ATCC 25259(such as reference APPLIED AND ENVIRONMENTAL MICROBIOLOGY, May 2007, p. 3265 – 3271);
Described bacillus cereus (Bacillus cereus) for ATCC 10876(such as
new J. Chem., 2007,
31, 748-755);
Described Acinetobacter bauamnnii (Acinetobacter baumanii) is ATCC 19606(Infect Immun. 2012 Mar; 80 (3): 1015-24);
Described rhodococcus (Rhodococcus rhodochrous) is ATCC 15906(J. Bacteriol. November 2001);
Described Pseudomonas fluorescens (P.Fluorescens) is ATCC 49642(WO2003066873A1);
Bacterial classification of the present invention all can be bought from commercial channel such as CGMCC, CCTCC and American Type Culture collection warehousings (ATCC) and obtain.
The enlarged culturing method of microorganism of the present invention can record according to document or the record of prior art is carried out, and is not innovative point of the present invention herein, as space is limited, does not repeat one by one.。
The beneficial effect that the present invention obtains is main but be not limited to the following aspects:
Present invention process is suitable for Waste Water Containing Sulfur process, effectively can remove sulfocompound, reduces working cost, promotes qualified discharge; Biotechnological formulation of the present invention, by the various bacterial classification that can form dominant microflora, is mixed with high-performance bio preparation, is added in Sewage treatment systems by a certain amount of, accelerates the degraded of microbe, to improve the biological treatment efficiency of system, ensures system stable operation; Reasonable compatibility between each bacterial classification of biotechnological formulation of the present invention, symbiosis is coordinated, mutually not antagonism, and active high, biomass is large, and breeding is fast;
Embodiment
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the application's specific embodiment, the technical scheme of the application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Embodiment 1
Process a technique for power station Waste Water Containing Sulfur, it comprises the steps:
Prepare biotechnological formulation: thiobacillus denitrificans, bacillus cereus, Acinetobacter bauamnnii, rhodococcus, Pseudomonas fluorescens being trained respectively concentration is 1 × 10
8the bacterium liquid of individual/ml, mixes according to the volume ratio of 3:2:2:1:1, then with carrier according to the quality of 1:2 than mixing and stirring, 100 turns/min stirs 3min, finally carries out cryodrying, and drying temperature is 20 DEG C, and after dry, water content is 6%, to obtain final product; Described carrier is prepared as follows and forms: the particle diameter first controlling diatomite and chitosan is 100 orders, then diatomite and chitosan is mixed according to the mass ratio of 1:1, to obtain final product.
Dispose of sewage: the pH of adjustment sewage is 7.0; Then add 20 grams of biotechnological formulations according to every cubic metre of sewage at every turn, add 1 every day, after adding three days continuously, then leave standstill one week, liquid is filtered by plate filter, finally discharges.
Embodiment 2
Process a technique for power station Waste Water Containing Sulfur, it comprises the steps:
Prepare biotechnological formulation: thiobacillus denitrificans, bacillus cereus, Acinetobacter bauamnnii, rhodococcus, Pseudomonas fluorescens being trained respectively concentration is 1 × 10
8the bacterium liquid of individual/ml, mixes according to the volume ratio of 3:2:2:1:1, then with carrier according to the quality of 1:2 than mixing and stirring, 100 turns/min stirs 3min, finally carries out cryodrying, and drying temperature is 22 DEG C, and after dry, water content is 8%, to obtain final product; Described carrier is prepared as follows and forms: the particle diameter first controlling diatomite and chitosan is 200 orders, then diatomite and chitosan is mixed according to the mass ratio of 1:1, to obtain final product.
Wherein,
Described thiobacillus denitrificans (Thiobacillus denitrificans) is ATCC 25259(such as APPLIED AND ENVIRONMENTAL MICROBIOLOGY, May 2007, p. 3265 – 3271);
Described bacillus cereus (Bacillus cereus) for ATCC 10876(such as
new J. Chem., 2007,
31, 748-755).
Described Acinetobacter bauamnnii (Acinetobacter baumanii) is ATCC 19606(Infect Immun. 2012 Mar; 80 (3): 1015-24)
Described rhodococcus (Rhodococcus rhodochrous) is ATCC 15906(J. Bacteriol. November 2001);
Described Pseudomonas fluorescens (P.Fluorescens) is ATCC49642(WO2003066873A1);
Dispose of sewage: the pH of adjustment sewage is 7.5; Then add 20 grams of biotechnological formulations according to every cubic metre of sewage at every turn, add 1 every day, after adding three days continuously, then leave standstill one week, liquid is filtered by plate filter, finally discharges.
Embodiment 3
With this city power station Waste Water Containing Sulfur for example, detect the wastewater treatment efficiency of embodiment 2 technique, each index all reaches desirable emission standard, and the Testing index of sewage is in table 1:
Table 1
| Before process (mg/L) | After process (mg/L) | Clearance (%) | |
| COD | 912 | 59 | 93.5 |
| SO 4 2- 、SO 3 2- | 337 | 7.5 | 97.8 |
| Sulfide | 53 | 6.1 | 88.5 |
Conclusion: biotechnological formulation of the present invention can remove sulfate radical, sulfide and industrial COD material in sewage effectively, reaches emission standard completely.
Although above done detailed explanation with general explanation and embodiment to this case, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, amendment done without departing from theon the basis of the spirit of the present invention or improvement, all belong to the scope of protection of present invention.
Claims (3)
1. process a technique for power station Waste Water Containing Sulfur, it is characterized in that, described technique comprises the steps:
Prepare biotechnological formulation: thiobacillus denitrificans, bacillus cereus, Acinetobacter bauamnnii, rhodococcus, Pseudomonas fluorescens being trained respectively concentration is 1 × 10
8the bacterium liquid of individual/ml, mixes according to the volume ratio of 3:2:2:1:1, then compares mixing and stirring with carrier according to the quality of 1:2,100 turns/min stirs 3min, finally carries out cryodrying, and drying temperature is 20-22 DEG C, after dry, water content is 6-8%, to obtain final product;
Dispose of sewage: the pH of adjustment sewage is 7.0-7.5; Then add 20 grams of biotechnological formulations according to every cubic metre of sewage at every turn, add 1 every day, after adding three days continuously, then leave standstill one week, liquid is filtered by plate filter, finally discharges.
2. technique according to claim 1, it is characterized in that, described carrier is prepared as follows and forms: the particle diameter first controlling diatomite and chitosan is 100-200 order, then diatomite and chitosan is mixed according to the mass ratio of 1:1, to obtain final product.
3. technique according to claim 1, is characterized in that, described thiobacillus denitrificans (Thiobacillus denitrificans) is ATCC 25259; Described bacillus cereus (Bacillus cereus) is ATCC 10876; Described Acinetobacter bauamnnii (Acinetobacter baumanii) is ATCC 19606; Described rhodococcus (Rhodococcus rhodochrous) is ATCC 15906; Described Pseudomonas fluorescens (P.Fluorescens) is ATCC 49642.
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| CN201410825553.0A CN104528949B (en) | 2014-12-28 | 2014-12-28 | A kind of technique of processing power plant Waste Water Containing Sulfur |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105523687A (en) * | 2015-08-24 | 2016-04-27 | 国网山东省电力公司临沂供电公司 | Storage battery waste water desulphurization technology |
| CN108085266A (en) * | 2016-11-22 | 2018-05-29 | 山东鑫海科技股份有限公司 | A kind of lateritic nickel ore nickel-iron smelting flue gas desulfurization and denitrification biological agent and its application |
| CN111100824A (en) * | 2020-01-21 | 2020-05-05 | 暨南大学 | Bacillus and application thereof in denitrification and desulfurization in aquaculture water |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105523687A (en) * | 2015-08-24 | 2016-04-27 | 国网山东省电力公司临沂供电公司 | Storage battery waste water desulphurization technology |
| CN105523687B (en) * | 2015-08-24 | 2018-02-16 | 国网山东省电力公司临沂供电公司 | The sulfur removal technology of battery waste water |
| CN108085266A (en) * | 2016-11-22 | 2018-05-29 | 山东鑫海科技股份有限公司 | A kind of lateritic nickel ore nickel-iron smelting flue gas desulfurization and denitrification biological agent and its application |
| CN108085266B (en) * | 2016-11-22 | 2021-05-07 | 山东鑫海科技股份有限公司 | Laterite-nickel ore ferronickel smelting flue gas desulfurization and denitrification biological agent and application thereof |
| CN111100824A (en) * | 2020-01-21 | 2020-05-05 | 暨南大学 | Bacillus and application thereof in denitrification and desulfurization in aquaculture water |
| CN111100824B (en) * | 2020-01-21 | 2021-11-05 | 暨南大学 | Bacillus and application thereof in denitrification and desulfurization in aquaculture water |
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| CN104528949B (en) | 2016-05-11 |
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Inventor after: Fan Lan Inventor after: Fan Hong Inventor after: Feng Laiguo Inventor after: Li Yang Inventor before: Shao Xiaodong Inventor before: Guan Li Inventor before: Zhang Yongchao Inventor before: Huang Qian Inventor before: Xiang Jingxia Inventor before: Wang Yingshan Inventor before: Wu Xuejin Inventor before: Gu Enguang Inventor before: Zheng Dawei |
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Effective date of registration: 20170607 Address after: 224014, D2 building, Yancheng hi tech Innovation Park, No. 9, Huarui Road, salt Dragon Street, salt city, Jiangsu, Yancheng City (D) Patentee after: Yancheng City Lanfeng Environmental Engineering Technology Co., Ltd. Address before: 100761 West Chang'an Avenue, Beijing, No. 86, No. Co-patentee before: Linyi Electric Power Company of Guo Wang Shandong Province Utilities Electric Co. Patentee before: State Grid Corporation of China Co-patentee before: Junan Power Supply Co.,Ltd. |