CN103910454A - Device and method for decreasing temperature of DSD (4,4'-diamido diphenylethylene-disulfonic acid) wastewater - Google Patents
Device and method for decreasing temperature of DSD (4,4'-diamido diphenylethylene-disulfonic acid) wastewater Download PDFInfo
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- CN103910454A CN103910454A CN201410167381.2A CN201410167381A CN103910454A CN 103910454 A CN103910454 A CN 103910454A CN 201410167381 A CN201410167381 A CN 201410167381A CN 103910454 A CN103910454 A CN 103910454A
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Abstract
The invention relates to a device for decreasing the temperature of DSD (4,4'-diamido diphenylethylene-disulfonic acid) wastewater. The device disclosed by the invention comprises a wastewater buffer tank and a resin adsorption device and further comprises a glycol ice maker, a cold analysis tank, a suction filter tank, a wastewater collecting tank, a vacuum pump, a wastewater conveying pump I and a wastewater conveying pump II. Oxidized wastewater in the cold analysis tank is cooled to 2-5 DEG C by utilizing the glycol ice maker; the content of analyzed sodium sulphate is about 20-22%; the content of sodium sulphate after carrying out suction filtration and separation in the suction filter tank is increased to 45-50%; the salt precipitation working section is recycled; the salt content in separated wastewater is decreased to 5-7%; then, wastewater enters the resin adsorption device. According to the invention, the glycol ice maker, the cold analysis tank, the suction filter tank and the vacuum pump are mainly arranged additionally, and the salt content in wastewater is reduced before wastewater enters the resin adsorption device through the cold analysis and suction filtration steps, so that a pipeline is prevented from being blocked, and the production continuity is increased; solid sodium sulphate recycled for production is separated out for the second time after suction adsorption, therefore, the production utilization rate is increased, and the production cost is reduced.
Description
Technical field
The present invention relates to dying industrial wastewater processing, the apparatus and method that particularly in DSD acid production, oxidized waste water cooling is processed.
Background technology
DSD acid full name is 4,4 '-diaminobenzil-disulfonic acid, is one of important dyestuff intermediate, for the synthesis of white dyes and other dyestuff.Adopt at present para-nitrotoluene and oleum process for sulfonation to produce DSD acid, 1 ton of DSD acid of every production, produces 15m
3oxidized waste water.Common treatment process is resin absorption at present, utilizes dinitrostilbene acid and other organic impurity in resin absorption device planar water, and the sodium sulfate that is difficult for absorption enters sewage work with water.The defect that this technology exists: 1, pipeline easily stops up, gives continuously and produces and bring certain influence; 2, in waste water, salts contg high (sodium sulphate content 12-13%) causes efficient resource waste.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of can reuse efficient resource, cooling that continuity is strong processes the device of DSD acid waste water.
For solving above technical problem, the technical solution used in the present invention is:
Lower the temperature and process a device for DSD acid waste water, comprise waste water surge tank and resin absorption device, also comprise ethylene glycol ice maker, cold analysis tank, suction filtration tank, wastewater collection tank, vacuum pump and waste water transferpump I and waste water transferpump II; Wherein,
---cold analysis tank, connect ethylene glycol ice maker, also connect waste water surge tank exit end by waste water transferpump I;
---suction filtration tank, the exit end of connection cold analysis tank;
---waste water collection tank, on it, be connected with vacuum pump, also connect the exit end of suction filtration tank;
---resin absorption device, connects wastewater collection tank by waste water transferpump II.
The present invention also provides a kind of method of utilizing the cooling of above device to process DSD acid waste water, to utilize refrigerated water after press filtration oxidized waste water cooling out, to separate out solid sodium sulfate, isolate the solid sodium sulfate reuse workshop section of saltouing through suction filtration again, the waste water that has reduced sodium sulphate content after separation enters resin absorption device.
As the preferred version of more than one methods, method of the present invention is to utilize ethylene glycol ice maker that the oxidized waste water in cold analysis tank is cooled to 2-5 DEG C, the sodium sulphate content that cold analysis goes out is 20-22% left and right, in suction filtration tank, suction filtration separates rear sodium sulphate content and brings up to 45%-50%, the reuse workshop section of saltouing, the waste water salts contg after separation drops to 5-7% and enters resin absorption device.
Because DSD acid oxidase waste water salts contg is high, directly be sent to the easy blocking pipe of resin absorption device, the present invention has mainly increased ethylene glycol ice maker, cold analysis tank, suction filtration tank and vacuum pump, by cold analysis and suction filtration step, before resin absorption device, reduce the salts contg in waste water entering, avoid line clogging, improved continuous production.After suction filtration, secondary separation goes out to meet the solid sodium sulfate that reuse is produced, and has improved production utilization ratio, has reduced production cost.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
In figure, 1-waste water surge tank, 2-resin absorption device, 3-ethylene glycol ice maker, 4-cold analysis tank, 5-suction filtration tank, 6-wastewater collection tank, 7-vacuum pump, 8-waste water transferpump I, 9-waste water transferpump II.
Embodiment
As shown in Figure 1, a kind of cooling of the present invention processed the device of DSD acid waste water, comprise waste water surge tank 1 and resin absorption device 2, also comprise ethylene glycol ice maker 3, cold analysis tank 4, suction filtration tank 5, wastewater collection tank 6, vacuum pump 7 and waste water transferpump I8 and waste water transferpump II9; Ethylene glycol ice maker 3 and cold analysis tank 4 are cold analysis systems, and suction filtration tank 5, wastewater collection tank 6 and vacuum pump 7 are suction filtration systems, and power system comprises the defeated pass of waste water pump I8 and waste water transferpump II9, wherein,
---cold analysis tank 4, connect ethylene glycol ice maker 3, also connect waste water surge tank 1 exit end by waste water transferpump I8.Cold analysis tank 4 is generally used for separating out along with the material of temperature reduction solubleness reduction, inside is generally provided with in stirring, chuck, chuck and is connected with refrigerated water, design chuck quantity of circulating water and equipment jacket volume according to hour rate-of flow and cooling demand, can make temperature be controlled in desired scope.
---suction filtration tank 5, the exit end of connection cold analysis tank 4; Suction filtration tank 5 is devices of realizing solid-liquid separation taking vacuum as power.Those skilled in the art can design vacuum tightness and volume of equipment according to material load and desired concn, and object concentration is controlled in the scope of requirement.
---waste water collection tank 6, on it, be connected with vacuum pump 7, also connect the exit end of suction filtration tank 5;
---resin absorption device 2, connects wastewater collection tank 6 by waste water transferpump II9.
Utilize refrigerated water will press filtration to separate out solid sodium sulfate after oxidized waste water cooling out, then isolate the solid sodium sulfate reuse workshop section of saltouing through suction filtration, the waste water that has reduced sodium sulphate content after separation enters resin absorption device.
The temperature of press filtration oxidized waste water is out 15-18 DEG C, sodium sulphate content is 12-13%, according to sodium sulfate along with temperature reduces, the character that solubleness reduces, utilize ethylene glycol ice maker that the oxidized waste water in cold analysis tank is cooled to 2-5 DEG C, the sodium sulphate content that cold analysis goes out is 20-22% left and right, in suction filtration tank, suction filtration separates rear sodium sulphate content and brings up to 45%-50%, the reuse workshop section of saltouing, waste water salts contg after separation drops to 5-7%, utilize vacuum pump 7 to be collected in wastewater collection tank 6, analyze qualified after, under the control of under meter, deliver into resin absorption device 2 by waste water transferpump II9.After processing, be sent to sewage farm and process in resin absorption device 2, high dense desorption liquid is sent to salkali waste boiler and burns.
Claims (3)
1. the device of processing DSD acid waste water of lowering the temperature, comprise waste water surge tank (1) and resin absorption device (2), it is characterized in that: also comprise ethylene glycol ice maker (3), cold analysis tank (4), suction filtration tank (5), wastewater collection tank (6), vacuum pump (7) and waste water transferpump I(8) and waste water transferpump II(9); Wherein,
---cold analysis tank (4), connects ethylene glycol ice maker (3), also by waste water transferpump I(8) connection waste water surge tank (1) exit end;
---suction filtration tank (5), the exit end of connection cold analysis tank (4);
---waste water collection tank (6), on it, be connected with vacuum pump (7), also connect the exit end of suction filtration tank (5);
---resin absorption device (2), by waste water transferpump II(9) connection wastewater collection tank (6).
2. the method for processing DSD acid waste water of lowering the temperature, it is characterized in that: utilize refrigerated water after press filtration oxidized waste water cooling out, to separate out solid sodium sulfate, isolate the solid sodium sulfate reuse workshop section of saltouing through suction filtration again, the waste water that has reduced sodium sulphate content after separation enters resin absorption device.
3. method according to claim 2, it is characterized in that: utilize ethylene glycol ice maker (3) that the oxidized waste water in cold analysis tank (4) is cooled to 2-5 DEG C, the sodium sulphate content that cold analysis goes out is 20-22% left and right, in suction filtration tank (5), suction filtration separates rear sodium sulphate content and brings up to 45%-50%, the reuse workshop section of saltouing, the waste water salts contg after separation drops to 5-7% and enters resin absorption device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410167381.2A CN103910454A (en) | 2014-04-24 | 2014-04-24 | Device and method for decreasing temperature of DSD (4,4'-diamido diphenylethylene-disulfonic acid) wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410167381.2A CN103910454A (en) | 2014-04-24 | 2014-04-24 | Device and method for decreasing temperature of DSD (4,4'-diamido diphenylethylene-disulfonic acid) wastewater |
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| CN103910454A true CN103910454A (en) | 2014-07-09 |
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| CN201410167381.2A Pending CN103910454A (en) | 2014-04-24 | 2014-04-24 | Device and method for decreasing temperature of DSD (4,4'-diamido diphenylethylene-disulfonic acid) wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843937A (en) * | 2015-04-27 | 2015-08-19 | 浙江奇彩环境科技有限公司 | Treatment method for o-phenylenediamine production wastewater |
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| JPS5575796A (en) * | 1978-12-03 | 1980-06-07 | Kimura Kakoki Kk | Treatment of waste water from production of alkali battery cadmium cathode plate |
| JPS60225689A (en) * | 1984-04-23 | 1985-11-09 | Japan Organo Co Ltd | Treatment of waste boric acid solution |
| CN1304882A (en) * | 2001-01-05 | 2001-07-25 | 南京大学 | Treatment and rediaimation of waste water in production of 4,4'-dinitrobistyrene-2,2'-bisulfonic acid |
| CN1858007A (en) * | 2006-03-06 | 2006-11-08 | 南京大学 | Treating and resourcing method for 4.4-diamido diphenyl propylene-2-disulfonic acid production oxide waste water |
| CN101177329A (en) * | 2007-11-20 | 2008-05-14 | 南京大学 | Method for eliminating water-soluble organic contamination concentration variation fluctuation in industrial waste water |
| CN101235014A (en) * | 2007-12-12 | 2008-08-06 | 唐树和 | Method for treating and reclaiming waste water of 2-aminopyridine production |
| CN102001760A (en) * | 2010-11-01 | 2011-04-06 | 浙江海正化工股份有限公司 | Recycling method of wastewater with hydroquinone and alkali metal salt thereof |
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2014
- 2014-04-24 CN CN201410167381.2A patent/CN103910454A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5575796A (en) * | 1978-12-03 | 1980-06-07 | Kimura Kakoki Kk | Treatment of waste water from production of alkali battery cadmium cathode plate |
| JPS60225689A (en) * | 1984-04-23 | 1985-11-09 | Japan Organo Co Ltd | Treatment of waste boric acid solution |
| CN1304882A (en) * | 2001-01-05 | 2001-07-25 | 南京大学 | Treatment and rediaimation of waste water in production of 4,4'-dinitrobistyrene-2,2'-bisulfonic acid |
| CN1858007A (en) * | 2006-03-06 | 2006-11-08 | 南京大学 | Treating and resourcing method for 4.4-diamido diphenyl propylene-2-disulfonic acid production oxide waste water |
| CN101177329A (en) * | 2007-11-20 | 2008-05-14 | 南京大学 | Method for eliminating water-soluble organic contamination concentration variation fluctuation in industrial waste water |
| CN101235014A (en) * | 2007-12-12 | 2008-08-06 | 唐树和 | Method for treating and reclaiming waste water of 2-aminopyridine production |
| CN102001760A (en) * | 2010-11-01 | 2011-04-06 | 浙江海正化工股份有限公司 | Recycling method of wastewater with hydroquinone and alkali metal salt thereof |
Non-Patent Citations (1)
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| 化肥工业大全编委会编: "《化肥工业大全》", 30 September 1988, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843937A (en) * | 2015-04-27 | 2015-08-19 | 浙江奇彩环境科技有限公司 | Treatment method for o-phenylenediamine production wastewater |
| CN104843937B (en) * | 2015-04-27 | 2017-04-12 | 浙江奇彩环境科技股份有限公司 | Treatment method for o-phenylenediamine production wastewater |
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Application publication date: 20140709 |