CN101054210B - Integrated treatment technique for waste water with high content of ammonia and nitrogen in fertilizer factory - Google Patents
Integrated treatment technique for waste water with high content of ammonia and nitrogen in fertilizer factory Download PDFInfo
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- CN101054210B CN101054210B CN2007101004014A CN200710100401A CN101054210B CN 101054210 B CN101054210 B CN 101054210B CN 2007101004014 A CN2007101004014 A CN 2007101004014A CN 200710100401 A CN200710100401 A CN 200710100401A CN 101054210 B CN101054210 B CN 101054210B
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- waste water
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Abstract
The invention relates to processing for comprehensive treatment of high ammonia and nitrogen contained waste water in the chemical fertilizer plants. Blow out NH3-N in the waste water via flue gas of the industrial boiler in the chemical fertilizer plants, gases containing NH3-N enters the absorption tower for the absorption of NH3-N with water which is then discharged into the air without causing secondary pollution and NH3-N accumulation in the system, water absorbed NH3-N can be used for irrigating the farmland which has apparent social benefits.
Description
The technology of waste water with high content of ammonia and nitrogen in fertilizer factory comprehensive treating process of the present invention relates to ammonia nitrogen removal, ammonia nitrogen utilizes, aspect such as wastewater treatment and comprehensive utilization, belong to chemical and field of environment engineering, be exactly the ammonia nitrogen removal in a kind of waste water with high content of ammonia and nitrogen in fertilizer factory specifically, utilize, and the technology of wastewater comprehensive treatment.
Industrial production wastewater treatment at present is the most frequently used, method is exactly biochemical treatment the most completely, comprises anaerobic-aerobic method, USB bio-reactor, technology such as microbial film processing.But various biologic treating techniques all have certain requirement to the carbon in the waste water, nitrogen ratio.If ammonia nitrogen is low excessively, then need add nitrogenous sources such as urea, to satisfy the biological needs of growing up, growing and surviving; Need add carbon sources such as methyl alcohol if ammonia nitrogen is too high, with the suitable proportion that keeps carbon, nitrogen or with ammonia nitrogen removal to reach same purpose.Before a kind of method that adds methyl alcohol cost height not only, also strengthened the COD in the waste water simultaneously, increased the wastewater treatment load.Then a kind of method with ammonia nitrogen removal in the waste water has two kinds of chemical method and physics methods again, chemical method mainly contains the break point chlorination method, the cost of this method is too high generally not to be adopted, the physics method is divided into two kinds of blow-off method and vaporizing extract processes again, if these two kinds of methods design unreasonable running cost height and the secondary pollution problem of existing equally.The characteristics of fertilizer plant's factory effluent are exactly that high-ammonia nitrogen low C OD, carbon-nitrogen ratio are low excessively.
Purpose of the present invention just provides a kind of technology of waste water with high content of ammonia and nitrogen in fertilizer factory comprehensive treating process, comprising ammonia nitrogen remove and utilize technology, solving the running cost height that exists in the present production technique, and easily cause secondary pollution problem.
The technology of waste water with high content of ammonia and nitrogen in fertilizer factory comprehensive treating process of the present invention realizes by following steps:
1. utilize the Industrial Boiler tail gas of fertilizer plant that the NH3-N in the waste water is blown out;
2. the gas that contains NH3-N enters in the usefulness of absorption tower and passes through the chimney emptying behind the water absorption NH3-N wherein, can not cause secondary pollution and the NH3-N accumulation in system;
3. the middle water that has absorbed NH3-N can be directly used in field irrigation, and social benefit is obvious.
The equipment of the technology of waste water with high content of ammonia and nitrogen in fertilizer factory comprehensive treating process of the present invention is: be made up of equalizing tank (1), grug feeding jar (2), pump (3), strainer (4), interchanger (5), stripping tower (6), water cooling tower (7) biochemical treatment apparatus (8), absorption tower (9), blower fan (10), gas-liquid separator (11), blower fan (12) etc.Wherein grug feeding jar (2) links to each other with equalizing tank (1) by pipeline, equalizing tank (1) links to each other with pump (3) by pipeline, pump (3) links to each other with strainer (4) by pipeline, strainer (4) links to each other with interchanger (5) by pipeline, interchanger (5) links to each other with water cooling tower (7) with stripping tower (6) by pipeline, stripping tower (6) is by pipeline and interchanger (5), blower fan (10), gas-liquid separators (11) etc. link to each other, water cooling tower (7) links to each other with biochemical treatment apparatus (8) by pipeline, biochemical treatment apparatus (8) links to each other with absorption tower (9) by pipeline and handling equipment, blower fan (10) links to each other with stripping tower (6) by pipeline, and gas-liquid separator (11) links to each other with absorption tower (9) by pipeline and blower fan (12).
Advantage of the present invention is:
1. made full use of the heat of boiler flue, energy-saving and cost-reducing;
2. utilize hot water and the water inlet of leaving stripping tower to carry out heat exchange, reach energy saving purposes equally;
3. utilize the ammonia nitrogen after the middle water after the biochemical treatment absorbs stripping, avoided secondary pollution;
4. the middle water that has absorbed ammonia nitrogen can be directly used in field irrigation, has realized the recycling of ammonia nitrogen;
Description of drawings is as follows:
Accompanying drawing is a processing unit schematic diagram of the present invention, and wherein 1 is equalizing tank, the 2nd, grug feeding jar, the 3rd, pump, the 4th, strainer, the 5th, interchanger, the 6th, stripping tower, the 7th, water cooling tower, the 8th, biochemical treatment apparatus, the 9th, absorption tower, the 10th, blower fan, the 11st, gas-liquid separator, the 12nd, blower fan.Wherein grug feeding jar (2) links to each other with equalizing tank (1) by pipeline, equalizing tank (1) links to each other with pump (3) by pipeline, pump (3) links to each other with strainer (4) by pipeline, strainer (4) links to each other with interchanger (5) by pipeline, interchanger (5) links to each other with water cooling tower (7) with stripping tower (6) by pipeline, stripping tower (6) is by pipeline and interchanger (5), blower fan (10), gas-liquid separators (11) etc. link to each other, water cooling tower (7) links to each other with biochemical treatment apparatus (8) by pipeline, biochemical treatment apparatus (8) links to each other with absorption tower (9) by pipeline and handling equipment, blower fan (10) links to each other with stripping tower (6) by pipeline, and gas-liquid separator (11) links to each other with absorption tower (9) by pipeline and blower fan (12).
Claims (1)
1. the technology of waste water with high content of ammonia and nitrogen in fertilizer factory comprehensive treating process, it is characterized in that: the Industrial Boiler stack gas of utilizing fertilizer plant is with the NH in the waste water
3-N blows out, and contains NH
3The gas of-N enters absorption tower water absorption NH wherein
3By the chimney emptying, can not cause secondary pollution and NH behind-the N
3The accumulation of-N in system absorbed NH
3The middle water of-N can be directly used in field irrigation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101004014A CN101054210B (en) | 2007-04-07 | 2007-04-07 | Integrated treatment technique for waste water with high content of ammonia and nitrogen in fertilizer factory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101004014A CN101054210B (en) | 2007-04-07 | 2007-04-07 | Integrated treatment technique for waste water with high content of ammonia and nitrogen in fertilizer factory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101054210A CN101054210A (en) | 2007-10-17 |
| CN101054210B true CN101054210B (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101004014A Expired - Fee Related CN101054210B (en) | 2007-04-07 | 2007-04-07 | Integrated treatment technique for waste water with high content of ammonia and nitrogen in fertilizer factory |
Country Status (1)
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| CN (1) | CN101054210B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430244B (en) * | 2016-11-08 | 2019-05-31 | 南京大学 | A method of it is recycled from ammonia nitrogen waste water and purifies ammonia |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5069886A (en) * | 1986-10-13 | 1991-12-03 | Ruedi Frey | Process and installation for the recovery of ammonia during the separation of nitrogen oxide from waste gases |
| US5387407A (en) * | 1988-08-09 | 1995-02-07 | Von Roll Ag | Process for the recovery of ammonia from flue gases |
| CN2532067Y (en) * | 2002-05-04 | 2003-01-22 | 宜兴市天立环保有限公司 | Dehydrogenation and denitrification device for waste water |
-
2007
- 2007-04-07 CN CN2007101004014A patent/CN101054210B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5069886A (en) * | 1986-10-13 | 1991-12-03 | Ruedi Frey | Process and installation for the recovery of ammonia during the separation of nitrogen oxide from waste gases |
| US5387407A (en) * | 1988-08-09 | 1995-02-07 | Von Roll Ag | Process for the recovery of ammonia from flue gases |
| CN2532067Y (en) * | 2002-05-04 | 2003-01-22 | 宜兴市天立环保有限公司 | Dehydrogenation and denitrification device for waste water |
Non-Patent Citations (2)
| Title |
|---|
| 邓斌.利用烟道气处理焦化剩余氨水技术.环境工程18 3.2000,18(3),17-18. |
| 邓斌.利用烟道气处理焦化剩余氨水技术.环境工程18 3.2000,18(3),17-18. * |
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| CN101054210A (en) | 2007-10-17 |
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