CN105253986A - Denitrogenation agent - Google Patents
Denitrogenation agent Download PDFInfo
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- CN105253986A CN105253986A CN201510767294.5A CN201510767294A CN105253986A CN 105253986 A CN105253986 A CN 105253986A CN 201510767294 A CN201510767294 A CN 201510767294A CN 105253986 A CN105253986 A CN 105253986A
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- denitrfying agent
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Abstract
The invention discloses a denitrogenation agent. The denitrogenation agent is prepared from, by weight, 50-70 parts of main components, 20-40 parts of promoting components and 1-10 parts of auxiliary components. The main components are formed by mixing chlorite, hypochlorite and sym-closene salt according to the mass ratio of 1:1.5-2.5:1-5. The promoting components are formed by mixing manganese dioxide and ferric trichloride according to the mass ratio of 1:2-8, and the auxiliary components are soluble carbonate. The denitrogenation agent can effectively remove remaining ammonia and nitrogen in low-concentration ammonia and nitrogen wastewater, the removing efficiency is high, the using amount is small, raw materials of the denitrogenation agent are economical and easy to obtain, processing and preparing are easy, and cost is low.
Description
Technical field
The present invention relates to a kind of denitrfying agent, belong to sewage treatment area.
Background technology
Ammonia nitrogen refers in water with free ammonia (NH
3) and ammonium ion (NH
4 +) form exist nitrogen.The general comparatively vegetalitas organism of the organic nitrogen content of animality is high.Meanwhile, in human and animal excreta, itrogenous organic substance is very unstable, easily decomposes ammonification.Therefore, in water, ammonia-nitrogen content increases the chemical combination ammonia referring to and exist with ammonia or ammonium ion form.Ammonia nitrogen is the nutrient substance in water body, and water eutrophication phenomenon can be caused to produce, and is the main oxygen consumption pollutent in water body, to fish and some hydrobiont toxic.
The main method of current removal ammonia nitrogen has: Physical, chemical method, biological process.Physical is containing treatment technologies such as reverse osmosis, distillation, soil irrigations; Chemical method is containing treatment technologies such as ion-exchange, ammonia aeration, break point chlorination, burning, chemical precipitation, promotion cracking, electrodialysis; Biological process is containing treatment technologies such as algal culture, biological nitration, immobilized biotechnologies.
In these ammonia nitrogen processing methods above-mentioned, practical method mainly contains: break point chlorination method, selective ion exchange method, ammonia aeration method, biological process and chemical precipitation method (MAP).The treatment effect of break point chlorination method in actual process cannot reach theoretic treatment effect, and will continue when ammonia nitrogen concentration is reduced to a certain degree to remove ammonia nitrogen, and its added amount of chemical can increase greatly, and processing cost will promote greatly; The restricted application of ion exchange method, requires higher to influent quality, and complicated operation, in the regeneration dope of generation, ammonia-nitrogen content is higher, and intractability is larger, easily forms secondary pollution; Ammonia aeration method is the effective ways effectively processing high-concentration ammonia nitrogenous wastewater, but current stripping technology by ammonia nitrogen removal to after to a certain degree, be just difficult to the concentration continuing to reduce ammonia nitrogen, all the time can not by up to standard for disposable for ammonia nitrogen process; Biochemical method effect is higher, if but ammonia nitrogen concentration is too high in waste water, be unfavorable for the carrying out of biochemical treatment, and biochemical system stability in actual motion is not high, the situation that frequent appearance is not up to standard, and along with the raising of emission standard, the process water outlet of biological treatment will reach new emission standard just needs further dilatation, carries out a large amount of civil engineerings and coordinative composition of equipments, be difficult to economically bear in order to a small amount of ammonia nitrogen removal; And chemical precipitation method (MAP) is better to the removal effect of ammonia nitrogen in high density, when ammonia nitrogen concentration is down to every premium on currency tens milligram hours, be difficult to continue to reduce the ammonia nitrogen concentration in waste water by adding medicament.
Treatment technology in sum and method, along with ammonia nitrogen concentration emission limit to be increased to the requirement of 8mg/L by country by 15mg/L, these methods effectively process the residual ammonia values of nitrogen might after ammonia nitrogen waste water to a certain extent often still higher than emission request, and the ammonia nitrogen concentration of this part remnants is often less, strengthening investment construction advanced treatment process in order to the ammonia nitrogen of this part remnants is uneconomical feasible; In addition, after having a lot of trade effluent employing physico-chemical process removal ammonia nitrogen, its water quality also may be used for follow-uply carrying out biochemical treatment, but the ammonia nitrogen of this part remnants can not directly discharge again, therefore be necessary to develop a kind for the treatment of agent removing a small amount of remaining ammonia nitrogen fast, utilize original process structures to carry out the in-depth process of ammonia nitrogen efficiently.
Summary of the invention
The present invention is directed to the ammonia nitrogen waste water carrying out preliminary treatment, reduce the ammonia-nitrogen content in waste water quickly and easily further.
Technical scheme of the present invention is, a kind of denitrfying agent is provided, by weight, comprise following component: the ancillary component of the main component of 50 ~ 70 parts, the promotion composition of 20 ~ 40 parts and 1 ~ 10 part, described main component is formed than mixture according to the quality of 1 ︰ 1.5 ~ 2.5 ︰ 1 ~ 5 by sub-chlorine acid salt ︰ chlorine acid salt ︰ trichloroisocyanuric acid salt, described promotion composition is formed than mixture by the quality of 1 ︰ 2 ~ 8 by two oxygen manganese ︰ iron trichlorides, and described ancillary component is soluble carbonate salt.
Further, the dry ingredient of 1 ~ 10 part is also comprised.
Further, described dry ingredient is calcium chloride or magnesium chloride.
Further, described hypochlorite is potassium hypochlorite.
Further, described chlorite is Textone, and described trichloroisocyanuric acid salt is sodium trichloro-isocyanurate.
Further, the particle diameter of described Manganse Dioxide is 1 ~ 100 nanometer.
Further, described ancillary component is sodium carbonate.
Further, the mass ratio of described Manganse Dioxide and iron trichloride is 1 ︰ 5.
Further, the mass ratio of described chlorite and hypochlorite is 1 ︰ 2.
The present invention is directed to the technical bottleneck existed in current ammonia nitrogen waste water process, a small amount of ammonia nitrogen existed in waste water is extremely difficult to be adopted the mode of precipitation or stripping and removes, and therefore should directly directly be transformed in water by ammonia nitrogen.Denitrfying agent of the present invention mainly utilizes denitrfying agent to react in the solution and produces ClO
-, ClO
2, Cl
2ammonia nitrogen is converted into N by the strong oxidation in oxygenant
2and be separated from water.Main component in denitrfying agent is Chlorates compound, and it constantly produces strong oxidizer and processes ammonia nitrogen in water, and strong oxidizer, under the katalysis promoting composition, is constantly oxidized ammonia nitrogen, makes ammonia nitrogen finally be converted into nitrogen; The Main Function of promotion composition is the oxidation removal effect of accelerated oxidation agent to ammonia nitrogen; Ancillary component in denitrfying agent is mainly used for the acid-basicity of regulating agent, makes the ionic state of ammonia nitrogen in waste water and molecular state be in be conducive to the distribution state be oxidized simultaneously; And the Main Function of dry ingredient makes denitrfying agent not deliquescence in sealing preservation process, ensure the stable of denitrfying agent effective constituent, prevent denitrfying agent from occurring in transport storage process rotten.
In the main component of denitrfying agent provided by the invention, available chlorine content is 70% ~ 90%, and hypochlorite is preferably potassium hypochlorite, and the available chlorine content of potassium hypochlorite is high, and meanwhile, potassium hypochlorite, for being solid, easily makes mealy medicine.
Ancillary component should be the potential of hydrogen that can regulate in waste water solution, avoids reacting with main component simultaneously, therefore without reductibility, preferably should select soluble carbonate salt, as sodium carbonate.
Denitrfying agent of the present invention should adopt following order when configuring: first weigh a certain amount of main component, add a certain amount of dry ingredient, cryogrinding is to crossing 100 mesh sieves, then add ancillary component and promote composition, and mix and namely make pulvis, also can make tablet etc. by granulating and forming.
The using method of denitrfying agent of the present invention: add after medicament can being configured to solution with reaction tank, also directly can add pulvis in reaction tank, directly add the better effects if of pulvis process.Denitrfying agent can directly add in general reaction tank or clean water basin, and its reaction fast.
The invention has the beneficial effects as follows, this denitrfying agent effectively can remove the remaining ammonia nitrogen in Low Concentration Ammonia Containing Wastewater, and removal efficiency is high, and consumption is few, and denitrfying agent starting material economy is easy to get, and processing preparation is simple, and cost is low; Denitrfying agent is easy to use, can directly add in existing reaction tank, simple, and denitrfying agent medicament is nontoxic or low-toxic agent, secondary pollution can not be produced to waste water, be specially adapted to the engineerings such as the physique transformation of sewage work, sterilizing agent also can be replaced to be used for disinfecting of sewage disposal water outlet.
Accompanying drawing explanation
Fig. 1 represents the preparation technology of the denitrfying agent that embodiment 1 provides.
Embodiment
Embodiment: sewage works denitrogenation medicament of the present invention being applied to certain smelting wastewater factory, waste water station water inlet is smelting wastewater, wherein heavy metal and ammonia nitrogen concentration are all higher, technique have employed blow-off method and removes a large amount of ammonia nitrogens, adopt chemical precipitation method+filtration removal heavy metal, process water outlet heavy metal is up to standard, but ammonia-nitrogen content is considerably beyond emission standard, adopt adding of agent of the present invention after settling tank with filtering basin before intermediate pool to remove remaining ammonia nitrogen.
The denitrfying agent reagent combination that the present embodiment provides for: the ratio shared by main component (Ya Lv Suan Na ︰ hypochlorous acid Jia ︰ sodium trichloro-isocyanurate=1 ︰ 2 ︰ 3) be 70% (mass percent, lower with), promote composition (MnO
2︰ FeCl
3=1 ︰ 5) proportion is 20%, ancillary component (sodium carbonate) proportion is 5%, and dry ingredient (calcium chloride) proportion is 5%; Course of processing See Figure 1.
The dosage of the denitrfying agent of the present embodiment is 50ppm, and reaction time is 15min.Same waste water adopts break point chlorination to compare, and the amount adding clorox is 1500ppm, reaction times 30min.Index of correlation before and after process in waste water is as following table 1:
Table 1 ammonia nitrogen waste water disposition contrast table
Claims (9)
1. a denitrfying agent, it is characterized in that, by weight, comprise following component: the ancillary component of the main component of 50 ~ 70 parts, the promotion composition of 20 ~ 40 parts and 1 ~ 10 part, described main component is formed than mixture according to the quality of 1 ︰ 1.5 ~ 2.5 ︰ 1 ~ 5 by sub-chlorine acid salt ︰ chlorine acid salt ︰ trichloroisocyanuric acid salt, described promotion composition is formed than mixture by the quality of 1 ︰ 2 ~ 8 by two oxygen manganese ︰ iron trichlorides, and described ancillary component is soluble carbonate salt.
2. denitrfying agent as claimed in claim 1, is characterized in that, also comprise the dry ingredient of 1 ~ 10 part.
3. denitrfying agent as claimed in claim 2, it is characterized in that, described dry ingredient is calcium chloride or magnesium chloride.
4. the denitrfying agent as described in any one of claims 1 to 3, is characterized in that, described hypochlorite is potassium hypochlorite.
5. the denitrfying agent as described in any one of claims 1 to 3, is characterized in that, described chlorite is Textone, and described trichloroisocyanuric acid salt is sodium trichloro-isocyanurate.
6. the denitrfying agent as described in any one of claims 1 to 3, is characterized in that, the particle diameter of described Manganse Dioxide is 1 ~ 100 nanometer.
7. the denitrfying agent as described in any one of claims 1 to 3, is characterized in that, described ancillary component is sodium carbonate.
8. the denitrfying agent as described in any one of claims 1 to 3, is characterized in that, the mass ratio of described Manganse Dioxide and iron trichloride is 1 ︰ 5.
9. the denitrfying agent as described in any one of claims 1 to 3, is characterized in that, the mass ratio of described chlorite and hypochlorite is 1 ︰ 2.
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| CN201510767294.5A CN105253986B (en) | 2015-11-11 | 2015-11-11 | A kind of denitrifier |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045200A (en) * | 2016-06-27 | 2016-10-26 | 深圳市翰唐环保科技有限公司 | Coking wastewater treatment technique |
| CN106830258A (en) * | 2017-02-21 | 2017-06-13 | 张玉 | The reagent combination and application method of ammonia nitrogen in a kind for the treatment of PCB waste water |
| CN107176672A (en) * | 2017-06-07 | 2017-09-19 | 东莞市净宇环保科技有限公司 | A kind of ammonia nitrogen removal agent and preparation method thereof |
| CN107381772A (en) * | 2017-07-04 | 2017-11-24 | 武汉理工大学 | A kind of quick processing system and method for being directed to ammonia nitrogen in urban river water |
| CN108083486A (en) * | 2016-11-23 | 2018-05-29 | 宝山钢铁股份有限公司 | The method of ammonia nitrogen and COD in a kind of removal cold rolling acid waste water |
| CN113511715A (en) * | 2021-06-17 | 2021-10-19 | 苏州福硼科技发展有限公司 | High-efficiency denitrifying agent and preparation method thereof |
| CN114291881A (en) * | 2021-12-24 | 2022-04-08 | 湖南有色郴州氟化学有限公司 | Ammonia nitrogen wastewater treatment agent and use method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11165180A (en) * | 1997-12-02 | 1999-06-22 | Ngk Insulators Ltd | Method for treating scrubber drainage |
| CN101475251A (en) * | 2008-10-24 | 2009-07-08 | 江苏工业学院 | Composite denitrification agent for treating medium concentration ammonia nitrogen wastewater and denitrification method |
| CN102079560A (en) * | 2010-12-21 | 2011-06-01 | 无锡市霄鹰环境科技有限公司 | Composite water cleaning agent for treating river |
| CN102515327A (en) * | 2011-12-28 | 2012-06-27 | 樊继健 | Composite water treatment agent, and preparation method thereof |
| CN103086497A (en) * | 2011-10-28 | 2013-05-08 | 武汉科技大学 | Method for realizing deep treatment of coking wastewater by utilizing calcium hypochlorite |
| CN103386305A (en) * | 2013-07-31 | 2013-11-13 | 南京威安新材料科技有限公司 | Preparation method, application process and application device of catalyst for treatment of hydrazine and ammonia-nitrogen wastewater |
-
2015
- 2015-11-11 CN CN201510767294.5A patent/CN105253986B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11165180A (en) * | 1997-12-02 | 1999-06-22 | Ngk Insulators Ltd | Method for treating scrubber drainage |
| CN101475251A (en) * | 2008-10-24 | 2009-07-08 | 江苏工业学院 | Composite denitrification agent for treating medium concentration ammonia nitrogen wastewater and denitrification method |
| CN102079560A (en) * | 2010-12-21 | 2011-06-01 | 无锡市霄鹰环境科技有限公司 | Composite water cleaning agent for treating river |
| CN103086497A (en) * | 2011-10-28 | 2013-05-08 | 武汉科技大学 | Method for realizing deep treatment of coking wastewater by utilizing calcium hypochlorite |
| CN102515327A (en) * | 2011-12-28 | 2012-06-27 | 樊继健 | Composite water treatment agent, and preparation method thereof |
| CN103386305A (en) * | 2013-07-31 | 2013-11-13 | 南京威安新材料科技有限公司 | Preparation method, application process and application device of catalyst for treatment of hydrazine and ammonia-nitrogen wastewater |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045200A (en) * | 2016-06-27 | 2016-10-26 | 深圳市翰唐环保科技有限公司 | Coking wastewater treatment technique |
| CN108083486A (en) * | 2016-11-23 | 2018-05-29 | 宝山钢铁股份有限公司 | The method of ammonia nitrogen and COD in a kind of removal cold rolling acid waste water |
| CN108083486B (en) * | 2016-11-23 | 2021-02-19 | 宝山钢铁股份有限公司 | Method for removing ammonia nitrogen and COD (chemical oxygen demand) in cold rolling acidic wastewater |
| CN106830258A (en) * | 2017-02-21 | 2017-06-13 | 张玉 | The reagent combination and application method of ammonia nitrogen in a kind for the treatment of PCB waste water |
| CN107176672A (en) * | 2017-06-07 | 2017-09-19 | 东莞市净宇环保科技有限公司 | A kind of ammonia nitrogen removal agent and preparation method thereof |
| CN107381772A (en) * | 2017-07-04 | 2017-11-24 | 武汉理工大学 | A kind of quick processing system and method for being directed to ammonia nitrogen in urban river water |
| CN113511715A (en) * | 2021-06-17 | 2021-10-19 | 苏州福硼科技发展有限公司 | High-efficiency denitrifying agent and preparation method thereof |
| CN114291881A (en) * | 2021-12-24 | 2022-04-08 | 湖南有色郴州氟化学有限公司 | Ammonia nitrogen wastewater treatment agent and use method and application thereof |
| CN114291881B (en) * | 2021-12-24 | 2023-03-03 | 湖南有色郴州氟化学有限公司 | Ammonia nitrogen wastewater treatment agent and use method and application thereof |
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| CN105253986B (en) | 2018-02-02 |
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Address after: No. 16, camphor East Road, Yuhua District, Changsha, Hunan Patentee after: POWERCHINA ZHONGNAN ENGINEERING Corp.,Ltd. Patentee after: China Power Construction Environmental Protection Technology Co.,Ltd. Address before: No. 16, camphor East Road, Yuhua District, Changsha, Hunan Patentee before: POWERCHINA ZHONGNAN ENGINEERING Corp.,Ltd. Patentee before: Hunan Zhongnan Water Environmental Protection Technology Co.,Ltd. |