CN104150678B - A kind for the treatment of process of nitrogenous organic waste water - Google Patents
A kind for the treatment of process of nitrogenous organic waste water Download PDFInfo
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- CN104150678B CN104150678B CN201410204978.XA CN201410204978A CN104150678B CN 104150678 B CN104150678 B CN 104150678B CN 201410204978 A CN201410204978 A CN 201410204978A CN 104150678 B CN104150678 B CN 104150678B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000010815 organic waste Substances 0.000 title claims abstract description 15
- 239000002351 wastewater Substances 0.000 claims abstract description 84
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 19
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000460 chlorine Substances 0.000 claims abstract description 12
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 12
- 241000894006 Bacteria Species 0.000 claims description 27
- 239000002054 inoculum Substances 0.000 claims description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 12
- 241000108664 Nitrobacteria Species 0.000 claims description 11
- 238000007664 blowing Methods 0.000 claims description 6
- 230000005587 bubbling Effects 0.000 claims description 6
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 5
- 241000194106 Bacillus mycoides Species 0.000 claims description 5
- 244000063299 Bacillus subtilis Species 0.000 claims description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 238000004176 ammonification Methods 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000004886 process control Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 150000002829 nitrogen Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001146 hypoxic effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention relates to water treatment field, be specifically related to a kind for the treatment of process of nitrogenous organic waste water.The method by tanning by the sun, ammonification, nitrated, denitrification, and after chlorine oxidation, reduce the nitrogen content in waste water step by step, finally reach emission standard.Have usage range wide, technique is simple, and simple to operate, working cost is lower.
Description
Technical field
The present invention relates to water treatment field, be specifically related to a kind for the treatment of process of nitrogenous organic waste water.
Background technology
Chemical industry, butcher, food-processing, nitrogenous and organic content is very high, be difficult to biological degradation in the waste water that produces in the industry production process such as semi-conductor, be one of the difficult point and focus of wastewater treatment both at home and abroad at present.For a long time, the process of sewage all with organics removal (COD) and suspended solids (SS) for target, fail the removal comprehensively considered nutritive substances such as nitrogens.After the Taihu Lake Blue Algae Event that nitrogen phosphorus eutrophication in 2007 causes, the principal contradiction of Chinese recent environmental problems has started to have turned to the problem of nitrogen by organic pollutant.Nitrate pollution causes the nitrogenous impact on water quality in the important factor of body eutrophication and Hypoxic water quality deterioration, particularly water the most obvious.In recent years, aggravate rapidly containing polluted by nitrogen, nitrogenous first of many water bodys and the basin that become exceeds standard pollutent.In " the 12 " stage, nitrogen has become the important control index that the total amount of pollutant reduces discharging after COD, sulfurous gas.The efficient control of water body nitrogen becomes the important node ensureing water quality and hydro-ecological safety.China is tending towards strict to the sewage drainage standard entering major river valley.In " the urban wastewater treatment firm pollutant emission standard " of the up-to-date amendment of China by enter the urban wastewater treatment firm water outlet of major river valley operative norm by original one-level B standard upgrading to one-level A standard, require that all pollutant discharging units last water outlet nitrogen content is nitrogenous and be less than 5mg/L, total nitrogen is less than 15mg/L, and to China, newly-built and built Sewage Plant proposes the technical requirements of sewage deep denitrogenation.In China developed area as Taihu Lake basin area requires to new project the zero release carrying out nitrogenous effluent especially.
Summary of the invention
The object of the invention is, in order to the deficiency solved at present to nitrogenous treatment of Organic Wastewater, to provide a kind for the treatment of process of nitrogenous organic waste water.
In order to reach foregoing invention object, the present invention by the following technical solutions:
A treatment process for nitrogenous organic waste water, comprises the following steps:
(1) nitrogenous effluent is tanned by the sun 3-5 days first in the sun;
(2) in waste water, add Ammonifying bacteria, at 25-30 DEG C, keep 15-24h;
(3) in waste water, add nitrobacteria, at 25-28 DEG C, keep 5-10h;
(4) in waste water, add denitrifying bacterium, at 30-35 DEG C, keep 5-10h; And air is passed in waste water;
(5) regulate the pH of waste water to be 10-11 with calcium hydroxide, adjustment water temperature is 35-40 DEG C, and to bubbling nitrogen blowing in waste water; The ammonia nitrogen concentration of waste water is reduced to below 300mg/L;
(6) regulate wastewater pH to be 8-8.5 with sulfuric acid, add hydrogen peroxide 2-5ml in often liter of waste water, and be blown into chlorine in waste water, when ammonia nitrogen concentration is reduced to 10mg/L, adjustment pH is 7-8, continues to be blown into chlorine and treats that pH is reduced to 6.5-7;
(7) by waste water filtering, water up to standard is obtained.
By tanning by the sun, the partial impurities in waste water is decomposed at the effect bottom fermentation of sunlight, then after the decomposition of Ammonifying bacteria, organonitrogen in waste water is decomposed and is converted into ammonia-state nitrogen, preliminary exposition conversion has been carried out to the nitrogen in waste water, then under the effect of nitrobacteria, further decomposition and inversion is carried out to ammonia nitrogen, ammonia nitrogen is made to be decomposed into nitrite and nitrate, then under the effect of denitrifying bacterium, NO3-N and NO2-N is reduced into gaseous nitrogen, under the carrying of air, gaseous nitrogen in waste water overflows the water surface, but, several conversion process all can not reach complete, therefore follow-up under alkaline environment, bubbling nitrogen blowing is adopted to be removed by the intermediate product produced in other nitrogen class materials in waste water and aforementioned several process.Reduced the pH of waste water by sulfuric acid after, with the synergistic oxidation of hydrogen peroxide and chlorine, by the residual nitrogen class substance oxidation in waste water, thus under the synergy of each step, the nitrogen content in waste water is reduced step by step, finally reaches emission standard.
As preferably, described Ammonifying bacteria is bacillus mycoides, Bacillus subtilus or corrupt genus bacillus.。
As preferably, the usage quantity of described Ammonifying bacteria is the inoculum 10-20ml that often liter of waste water adds that concentration is 300-10000/ml.
As preferably, the add-on of nitrobacteria adds 3-10ml inoculum for often liter of waste water,
As preferably, the add-on of denitrifying bacterium adds 3-10ml inoculum for often liter of waste water.
As preferably, it is 25-30 DEG C that step (6) controls wastewater temperature.
Compared with prior art, beneficial effect is in the present invention: usage range of the present invention is wide, and technique is simple, and simple to operate, working cost is lower.Nitrogen content the most at last in waste water significantly reduces, and reaches effectively process and avoids the object of contaminate environment.
Embodiment
Below by specific embodiment, explanation is further described to technical scheme of the present invention.
If without specified otherwise, the raw material adopted in embodiments of the invention is the conventional raw material in this area, and the method adopted in embodiment, is the ordinary method of this area.
Embodiment 1:
A treatment process for nitrogenous organic waste water, comprises the following steps:
(1) nitrogenous effluent is tanned by the sun 3 days first in the sun;
(2) in waste water, add Ammonifying bacteria, at 28 DEG C, keep 24h; Ammonifying bacteria is bacillus mycoides, Bacillus subtilus or corrupt genus bacillus; The usage quantity of Ammonifying bacteria is the inoculum 15ml that often liter of waste water adds that concentration is 300/ml;
(3) in waste water, add nitrobacteria, at 28 DEG C, keep 5h; The add-on of nitrobacteria adds 3-10ml inoculum for often liter of waste water;
(4) in waste water, add denitrifying bacterium, at 33 DEG C, keep the add-on of 10h denitrifying bacterium to add 3ml inoculum for often liter of waste water;
(5) regulate the pH of waste water to be 10.5 with calcium hydroxide, regulate water temperature to be 40 DEG C, and to bubbling nitrogen blowing in waste water; The ammonia nitrogen concentration of waste water is reduced to below 300mg/L;
(6) regulate wastewater pH to be 8 with sulfuric acid, add hydrogen peroxide 4ml in often liter of waste water, and be blown into chlorine in waste water, when ammonia nitrogen concentration is reduced to 10mg/L, regulate pH to be 8, continue to be blown into chlorine and treat that pH is reduced to 6.5; Whole-process control wastewater temperature is 28 DEG C
(7) by waste water filtering, water up to standard is obtained.
Embodiment 2:
A treatment process for nitrogenous organic waste water, comprises the following steps:
(1) nitrogenous effluent is tanned by the sun 4 days first in the sun;
(2) in waste water, add Ammonifying bacteria, at 30 DEG C, keep 15h; Ammonifying bacteria is bacillus mycoides, Bacillus subtilus or corrupt genus bacillus; The usage quantity of Ammonifying bacteria is the inoculum 20ml that often liter of waste water adds that concentration is 5000/ml;
(3) in waste water, add nitrobacteria, at 25 DEG C, keep 8h; The add-on of nitrobacteria adds 10ml inoculum for often liter of waste water;
(4) in waste water, add denitrifying bacterium, at 30 DEG C, keep the add-on of 7h denitrifying bacterium to add 10ml inoculum for often liter of waste water;
(5) regulate the pH of waste water to be 10 with calcium hydroxide, regulate water temperature to be 38 DEG C, and to bubbling nitrogen blowing in waste water; The ammonia nitrogen concentration of waste water is reduced to below 300mg/L;
(6) regulate wastewater pH to be 8.5 with sulfuric acid, add hydrogen peroxide 2ml in often liter of waste water, and be blown into chlorine in waste water, when ammonia nitrogen concentration is reduced to 10mg/L, regulate pH to be 7.8, continue to be blown into chlorine and treat that pH is reduced to 7; Whole-process control wastewater temperature is 25 DEG C
(7) by waste water filtering, water up to standard is obtained.
Embodiment 3:
A treatment process for nitrogenous organic waste water, comprises the following steps:
(1) nitrogenous effluent is tanned by the sun 5 days first in the sun;
(2) in waste water, add Ammonifying bacteria, at 25 DEG C, keep 20h; Ammonifying bacteria is bacillus mycoides, Bacillus subtilus or corrupt genus bacillus; The usage quantity of Ammonifying bacteria is the inoculum 10ml that often liter of waste water adds that concentration is 10000/ml;
(3) in waste water, add nitrobacteria, at 26 DEG C, keep 10h; The add-on of nitrobacteria adds 3ml inoculum for often liter of waste water;
(4) in waste water, add denitrifying bacterium, at 33 DEG C, keep the add-on of 10h denitrifying bacterium to add 3ml inoculum for often liter of waste water;
(5) regulate the pH of waste water to be 10 with calcium hydroxide, regulate water temperature to be 40 DEG C, and to bubbling nitrogen blowing in waste water; The ammonia nitrogen concentration of waste water is reduced to below 300mg/L;
(6) regulate wastewater pH to be 8 with sulfuric acid, add hydrogen peroxide 3ml in often liter of waste water, and be blown into chlorine in waste water, when ammonia nitrogen concentration is reduced to 10mg/L, regulate pH to be 8, continue to be blown into chlorine and treat that pH is reduced to 6.5; Whole-process control wastewater temperature is 30 DEG C
(7) by waste water filtering, water up to standard is obtained.
Claims (6)
1. a treatment process for nitrogenous organic waste water, is characterized in that, comprises the following steps:
(1) nitrogenous effluent is tanned by the sun 3-5 days first in the sun;
(2) in waste water, add Ammonifying bacteria, at 25-30 DEG C, keep 15-24h;
(3) in waste water, add nitrobacteria, at 25-28 DEG C, keep 5-10h;
(4) in waste water, add denitrifying bacterium, at 30-35 DEG C, keep 5-10h; And air is passed in waste water;
(5) regulate the pH of waste water to be 10-11 with calcium hydroxide, adjustment water temperature is 35-40 DEG C, and to bubbling nitrogen blowing in waste water; The ammonia nitrogen concentration of waste water is reduced to below 300mg/L;
(6) regulate wastewater pH to be 8-8.5 with sulfuric acid, add hydrogen peroxide 2-5ml in often liter of waste water, and be blown into chlorine in waste water, when ammonia nitrogen concentration is reduced to 10mg/L, adjustment pH is 7-8, continues to be blown into chlorine and treats that pH is reduced to 6.5-7;
(7) by waste water filtering, water up to standard is obtained.
2. the treatment process of a kind of nitrogenous organic waste water according to claim 1, is characterized in that, described Ammonifying bacteria is bacillus mycoides, Bacillus subtilus or corrupt genus bacillus.
3. the treatment process of a kind of nitrogenous organic waste water according to claim 1, is characterized in that, the usage quantity of described Ammonifying bacteria is the inoculum 10-20ml that often liter of waste water adds that concentration is 300-10000/ml.
4. the treatment process of a kind of nitrogenous organic waste water according to claim 1, it is characterized in that, the add-on of nitrobacteria adds 3-10ml inoculum for often liter of waste water.
5. the treatment process of a kind of nitrogenous organic waste water according to claim 1, it is characterized in that, the add-on of denitrifying bacterium adds 3-10ml inoculum for often liter of waste water.
6. the treatment process of a kind of nitrogenous organic waste water according to claim 1, is characterized in that, it is 25-30 DEG C that step (6) controls wastewater temperature.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107879551B (en) * | 2017-11-17 | 2021-03-30 | 大理大学 | Method for treating sewage by using biological denitrification technology |
| CN109020053A (en) * | 2018-07-12 | 2018-12-18 | 菏泽学院 | A kind of processing method of nitrogenous effluent |
| CN110835154A (en) * | 2019-12-16 | 2020-02-25 | 天合光能股份有限公司 | Ammonia water and hydrogen peroxide wastewater treatment device and method |
| CN111333257A (en) * | 2020-03-08 | 2020-06-26 | 杭州师范大学钱江学院 | Biological denitrification treatment method for dimethylamine wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3733266A (en) * | 1971-09-07 | 1973-05-15 | Administrator Of The Environme | Waste water purification by breakpoint chlorination and carbon adsorption |
| US4126544A (en) * | 1975-11-26 | 1978-11-21 | Tetra Werke, Dr. Rer. Nat. Ulrich Baensch G.M.B.H. | Process and apparatus for removing impurities dissolved in water |
| JP2003260491A (en) * | 2002-03-08 | 2003-09-16 | Ebara Corp | Biological treatment method for organic sewage and apparatus therefor |
| CN101157892A (en) * | 2007-03-06 | 2008-04-09 | 扬州市绿科生物技术有限公司 | Production method of solid preparation for degradation of ammonia nitrogen and nitrite |
| CN102923902A (en) * | 2011-08-12 | 2013-02-13 | 中国石油化工股份有限公司 | High-salt and low-carbon ammonia nitrogen wastewater treatment method |
| CN103373759A (en) * | 2012-04-29 | 2013-10-30 | 中国石油化工股份有限公司 | Method for denitrifying wastewater generated in process of producing FCC (fluid catalytic cracking) catalyst |
| CN103570193A (en) * | 2013-11-12 | 2014-02-12 | 苏州依科曼生物农业科技有限公司 | Circulating water treatment method and equipment for fish egg incubation |
| CN103723887A (en) * | 2013-12-14 | 2014-04-16 | 胡晓 | Treatment method for wastewater produced by circuit board production |
-
2014
- 2014-05-15 CN CN201410204978.XA patent/CN104150678B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3733266A (en) * | 1971-09-07 | 1973-05-15 | Administrator Of The Environme | Waste water purification by breakpoint chlorination and carbon adsorption |
| US4126544A (en) * | 1975-11-26 | 1978-11-21 | Tetra Werke, Dr. Rer. Nat. Ulrich Baensch G.M.B.H. | Process and apparatus for removing impurities dissolved in water |
| JP2003260491A (en) * | 2002-03-08 | 2003-09-16 | Ebara Corp | Biological treatment method for organic sewage and apparatus therefor |
| CN101157892A (en) * | 2007-03-06 | 2008-04-09 | 扬州市绿科生物技术有限公司 | Production method of solid preparation for degradation of ammonia nitrogen and nitrite |
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| CN103373759A (en) * | 2012-04-29 | 2013-10-30 | 中国石油化工股份有限公司 | Method for denitrifying wastewater generated in process of producing FCC (fluid catalytic cracking) catalyst |
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Address after: 316000 No. 127 Datong Road, Zhujiajian street, Putuo District, Zhoushan, Zhejiang Patentee after: Zhejiang Ocean University Address before: 316000 No. 127 Datong Road, Zhujiajian street, Putuo District, Zhoushan, Zhejiang Patentee before: ZHEJIANG OCEAN University |
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Application publication date: 20141119 Assignee: Zhoushan Huazheng Material Technology Co.,Ltd. Assignor: Zhejiang Ocean University Contract record no.: X2023980046527 Denomination of invention: A treatment method for nitrogen-containing organic wastewater Granted publication date: 20150819 License type: Common License Record date: 20231109 |
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