CN202924811U - Device for removing ammonia nitrogen in wastewater - Google Patents

Device for removing ammonia nitrogen in wastewater Download PDF

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Publication number
CN202924811U
CN202924811U CN 201220640512 CN201220640512U CN202924811U CN 202924811 U CN202924811 U CN 202924811U CN 201220640512 CN201220640512 CN 201220640512 CN 201220640512 U CN201220640512 U CN 201220640512U CN 202924811 U CN202924811 U CN 202924811U
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CN
China
Prior art keywords
ammonia nitrogen
naclo
utility
model
wastewater
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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.)
Expired - Fee Related
Application number
CN 201220640512
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Chinese (zh)
Inventor
王剑波
王文卫
严联军
徐占东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Longsha Chemical Co. Ltd.
Original Assignee
Arch Chemicals China Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to CN 201220640512 priority Critical patent/CN202924811U/en
Application granted granted Critical
Publication of CN202924811U publication Critical patent/CN202924811U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a device for removing ammonia nitrogen in wastewater. The device is connected with a cooling tower and a sand filtration tank, and the device for removing ammonia nitrogen in wastewater comprises a NaClO storage tank, a metering pump, a stirring kettle and an HCl pipeline, wherein the NaClO storage tank is connected with the stirring kettle through the metering pump, the stirring kettle is respectively connected with the cooling tower and the sand filtration tank, and the HCl pipeline is connected with the stirring kettle. Through the way, the device disclosed by the utility model can continuously and stably add NaClO to remove ammonia nitrogen in wastewater by adopting a breakpoint chlorination method, reach an ammonia nitrogen emission standard and realize qualified emission.

Description

Waste water ammonia-removal nitrogen device
Technical field
The utility model relates to the wastewater treatment equipment field, particularly relates to a kind of waste water ammonia-removal nitrogen device.
Background technology
In existing waste water treatment process, waste water after filtration, after the pre-treatment such as precipitation, adopt the FENTON method to remove organism, then by the lime precipitation heavy-metal ion removal.The FENTON method is utilized catalyzer or optical radiation or electrochemical action, passes through H 2O 2Produce hydroxyl radical free radical (OH) and process organism.But in FENTON method treating processes, nitrogenous compound can produce the ammonia nitriding compound through decomposing, and causes the ammonia nitrogen in waste water content overproof after processing, does not reach emission standard.
NH in waste water 3-N can when suitable pH value, utilize chloride oxygenant (as Cl 2, NaClO) make NH 3-N is oxidized to chloramines (NH 2Cl, NHCl 2, NCl 3), the molar ratio that reaches chlorine and ammonia when chlorine-throwed quantity is in the time of 1: 1, and the chemical combination chlorine residue namely increases, and when mol ratio reached 1.5: 1, chlorine residue dropped to lower-most point, this i.e. " break " ".At the break place, all the chlorine of oxidisability all is reduced basically, and whole ammonia are the oxidized N that resolves into all 2, reach the purpose of removal of ammonia and nitrogen, further chlorination just all produces free residual chlorine.This treatment process is called the break point chlorination method, and the utility model waste water ammonia-removal nitrogen device is namely according to this principle design.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of device of removing ammonia nitriding compound in waste water, makes waste water reach discharge index.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of waste water ammonia-removal nitrogen device comprises NaClO hold-up vessel, volume pump, stirring tank and HCL pipeline.The NaClO hold-up vessel is connected with stirring tank by volume pump, and stirring tank is connected with cooling tower and sandfiltration pot respectively, and the HCL pipeline is connected with stirring tank.
The beneficial effects of the utility model are: can use the method for break point chlorination after the FENTON method is processed, add the ammonia nitrogen in NaClO removal waste water, make its index that reaches the ammonia nitrogen discharging, qualified discharging.
Description of drawings
Fig. 1 is the structural representation of the utility model waste water ammonia-removal nitrogen device one preferred embodiment.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made more explicit defining.
As shown in Figure 1, NaClO hold-up vessel 1 is connected with stirring tank 3 by volume pump 2, and stirring tank 3 is connected with cooling tower 5 and sandfiltration pot 6 respectively.Hold-up vessel 1 can be stablized NaClO, add in stirring tank 3 continuously with volume pump 2.
Idiographic flow is that waste water carries out lime precipitation after FENTON processes, then filter via sandfiltration pot 6, enters stirring tank 3, continues herein to add NaClO.
NaClO very easily with waste water in ammonia react, form successively three kinds of chloramines in reaction:
NH 3+ HOCl → NH 2Cl (monochloro amine)+H 2O
NH 2Cl+HOCl → NHCl 2(dichlormaine)+H 2O
NH 2Cl+HOCl → NCl 3(three chloramines)+H 2O
Above-mentioned reaction is relevant with the pH value, so stirring tank 3 also is respectively equipped with the pipeline 7 that adds HCL, in order to regulate the pH value, satisfies the break point chlorination method to the requirement of potential of hydrogen.
Waste water after processing enters cooling tower 5, can safety dumping after cooling.
The utility model waste water ammonia-removal nitrogen device guarantees the carrying out of break point chlorination reaction by hold-up vessel and relevant pipe-line equipment, the pump of clorox, and ammonia-nitrogen content<35ppm in processed waste water is lower than emission standard.
The above is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification sheets and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.

Claims (1)

1. waste water ammonia-removal nitrogen device, be connected with cooling tower and sandfiltration pot, it is characterized in that: described waste water ammonia-removal nitrogen device comprises NaClO hold-up vessel, volume pump, stirring tank and HCL pipeline, described NaClO hold-up vessel is connected with stirring tank by volume pump, described stirring tank is connected with cooling tower and sandfiltration pot respectively, and described HCL pipeline is connected with stirring tank.
CN 201220640512 2012-11-28 2012-11-28 Device for removing ammonia nitrogen in wastewater Expired - Fee Related CN202924811U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220640512 CN202924811U (en) 2012-11-28 2012-11-28 Device for removing ammonia nitrogen in wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220640512 CN202924811U (en) 2012-11-28 2012-11-28 Device for removing ammonia nitrogen in wastewater

Publications (1)

Publication Number Publication Date
CN202924811U true CN202924811U (en) 2013-05-08

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Application Number Title Priority Date Filing Date
CN 201220640512 Expired - Fee Related CN202924811U (en) 2012-11-28 2012-11-28 Device for removing ammonia nitrogen in wastewater

Country Status (1)

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CN (1) CN202924811U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106431830A (en) * 2016-08-11 2017-02-22 刘定忠 Decomposition method of tetramethyl ammonium hydroxide solution and decomposition device thereof
CN108996754A (en) * 2018-08-13 2018-12-14 宁夏爱打听科技有限公司 A kind of processing unit of animal husbandry waste water and fecaluria grade height nitrogen concentration sewage
CN112897670A (en) * 2021-01-29 2021-06-04 江西晶昊盐化有限公司 Salt production condensate water deamination method and equipment
CN113200597A (en) * 2021-06-08 2021-08-03 王子荣 Method and device for one-step method ozone synergistic chlorine oxidation advanced treatment of nitrogen and chlorine in wastewater

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106431830A (en) * 2016-08-11 2017-02-22 刘定忠 Decomposition method of tetramethyl ammonium hydroxide solution and decomposition device thereof
CN106431830B (en) * 2016-08-11 2020-03-31 刘定忠 Method and apparatus for decomposing tetramethylammonium hydroxide solution
CN108996754A (en) * 2018-08-13 2018-12-14 宁夏爱打听科技有限公司 A kind of processing unit of animal husbandry waste water and fecaluria grade height nitrogen concentration sewage
CN112897670A (en) * 2021-01-29 2021-06-04 江西晶昊盐化有限公司 Salt production condensate water deamination method and equipment
CN113200597A (en) * 2021-06-08 2021-08-03 王子荣 Method and device for one-step method ozone synergistic chlorine oxidation advanced treatment of nitrogen and chlorine in wastewater

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 215024 No. 9, green hill street, Suzhou Industrial Park, Jiangsu, Suzhou

Patentee after: Suzhou Longsha Chemical Co. Ltd.

Address before: 215024 No. 9, green hill street, Suzhou Industrial Park, Jiangsu, Suzhou

Patentee before: Arch Chemicals (China) Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130508

Termination date: 20181128

CF01 Termination of patent right due to non-payment of annual fee