CN104692575A - Crystallization treatment method and device of high salt wastewater - Google Patents

Crystallization treatment method and device of high salt wastewater Download PDF

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Publication number
CN104692575A
CN104692575A CN201410796519.5A CN201410796519A CN104692575A CN 104692575 A CN104692575 A CN 104692575A CN 201410796519 A CN201410796519 A CN 201410796519A CN 104692575 A CN104692575 A CN 104692575A
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mother liquor
crystallizing
freezing
mvr
crystallization
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CN104692575B (en
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杭天浜
赛世杰
王俊辉
刘慧�
刘丹茹
孟庆军
李思序
李乐
郭默然
姚红锐
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Inner Mongol Ke Kangrui Environmental Protection Technology Co Ltd Of A Specified Duration
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Inner Mongol Ke Kangrui Environmental Protection Technology Co Ltd Of A Specified Duration
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Abstract

The invention relates to a crystallization treatment method and device of high salt wastewater and belongs to the technical field of water treatment. The method is characterized in that after sodium sulfate concentrated water is treated by a freezing crystallization system, generated mother liquor A enters into an MVR system for evaporative crystallization; after sodium chloride concentrated water is treated by the MVR system, generated mother liquor B enters into a freezing crystallization system for freezing crystallization, and the mother liquor can be treated in a circulation overlapping manner; a drain outlet of the MVR system of the device is connected with a liquid inlet of a crystallization tank in the freezing crystallization system through a pipeline and the drain outlet of the freezing crystallization system is connected with a liquid inlet pipe of the MVR evaporative crystallization system. The method has the advantages that the mother liquor is treated by a freezing crystallization technology and an MVR evaporation crystallization technology in a circulation overlapping manner, so that the problems of zero emission and resource utilization are solved, and therefore, the energy consumption is effectively reduced and the operating cost is lowered.

Description

A kind of crystallizing treatment process of high slat-containing wastewater and device thereof
Technical field
The invention belongs to water-treatment technology field, specifically a kind of method of freezing and crystallizing and MVR evaporative crystallization recycling cross process mother liquor and device thereof.
Background technology
Freezing and crystallizing technology is, by freezing method, wastewater temperature is down to about 0 DEG C, and the principle large according to the susceptibility of solubleness to temperature of some compound in water, carries out a kind of technology of crystallization treatment to waste water.The centrifuge mother liquor of freezing and crystallizing technology is only to carry out component loops in freezing and crystallizing system, because unconspicuous material may be changed containing some solubility with temperature in water, if adopt mother liquor all to circulate, these materials can be caused in intrasystem enrichment, form endless loop, so a part of centrifuge mother liquor needs to discharge from system.
MVR technology be by the method for evaporation by the temperature increase of waste water to the boiling temperature of water, by the evaporation to moisture in waste water, a kind of technology that in the waste water made, material is separated out from waste water.The centrifuge mother liquor of MVR technology can realize whole circulations in theory in system, but because the ion component contained in waste water is complicated, it is not one-component, as fruit mother liquor all circulates, the crystal salt magazine of final generation is too much, and use value is almost nil, and energy consumption is an important factor of restriction evaporation technique cost always in addition, mother liquor takes whole circular treatment greatly can increase the energy consumption of system, increases running cost.
Summary of the invention
The object of the invention is to overcome weak point of the prior art, a kind of crystallizing treatment process and device thereof of high slat-containing wastewater is provided.
In order to realize object of the present invention, following for employing technical scheme is implemented by we:
A kind of deep treatment method of high slat-containing wastewater, handled former water is the dense water of sodium-chlor and the dense water of sodium sulfate of high slat-containing wastewater gained after Chemical Pretreatment, Using Multistage Membranes concentration and the process of high-pressure membrane concentration systems, it is characterized in that: the dense water of sodium sulfate is after the process of freezing and crystallizing system, output technical grade saltcake and mother liquor A, the mother liquor A produced needs to discharge from system, and the mother liquor A of discharge enters MVR system and carries out evaporative crystallization;
The dense water of sodium-chlor is after the process of MVR system, and output industrial crystallization salt and mother liquor B, the mother liquor B of generation needs to discharge from system, and the mother liquor B of discharge enters freezing and crystallizing system and carries out freezing and crystallizing.
Further, described mother liquor A or mother liquor B enters after MVR system or freezing and crystallizing system carry out evaporative crystallization or Freeze crystallization, obtain mother liquor B or mother liquor A, mother liquor B or mother liquor A enters again freezing and crystallizing system or MVR system carries out freezing and crystallizing or evaporative crystallization process, moves in circles.
Further, described mother liquor A together enters MVR system after mixing with the dense water of described sodium-chlor and carries out evaporative crystallization process.
Further, described cycle index at least three times.
A kind of crystallization treatment device of high slat-containing wastewater, comprise: MVR system and freezing and crystallizing system, described MVR system adopts two sections of serial plate type heat exchangers to carry out thermal pretreatment to the sodium-chlor strong brine that liquid-inlet pipe is come in, after preheating, material enters Falling film heat transfer device, heat exchange is carried out with the steam heated up after compression, then material and steam enter falling film separator and carry out gas-liquid separation, after being separated, liquid enters pump circulation interchanger increasing temperature and pressure, then in crystal separator, carry out flash distillation, separate out small-particle crystal, separate out crystal by crystal separator bottom discharging to centrifugal separating device, crystal packing after centrifugal, a part of mother liquor B after separation returns system and proceeds evaporation concentration after heating, part mother liquor B is by outside leakage fluid dram discharge system, described freezing and crystallizing system dense for sodium sulfate water is first delivered to pre-cooler from the dense water tank of sodium sulfate tentatively lower the temperature, the dense water of sodium sulfate after cooling enters the circulation feed liquid pipeline of crystallisation by cooling system, after mixing with circulation feed liquid and water cooler carry out heat exchange, cooled supersaturation feed liquid enters crystallizer, enter bottom crystallisation chamber via crystallizer internal flow, contact with crystal grain crystalline growth step by step class settling discharge carry out centrifugation to centrifugal separating device, crystal packing after centrifugal, a part of mother liquor A after separation and crystallizer upper strata feed liquid enter again circulating line further water dense with sodium sulfate mix, cooling, be circulated back to crystallisation chamber and again participate in crystallization, circulation like this continuous seepage crystalline product, part mother liquor A is by outside leakage fluid dram discharge system, it is characterized in that: the leakage fluid dram of the centrifugal separating device in described MVR system is connected with a fluid inlet of the crystallizer in freezing and crystallizing system by pipeline, the leakage fluid dram of the centrifugal separating device in described freezing and crystallizing system is connected by the liquid-inlet pipe of pipeline with MVR system.
Beneficial effect
Unconspicuous material may be changed containing some solubility with temperature in the mother liquor of freezing and crystallizing technology, if adopt mother liquor all to circulate, these materials can be caused in intrasystem enrichment, form endless loop, so a part of centrifuge mother liquor needs to discharge from system.
The mother liquor of MVR technology can realize whole circulations in theory in system, but because the ion component contained in waste water is complicated, it is not one-component, as fruit mother liquor all circulates, the crystal salt magazine of final generation is too much, and use value is almost nil, and energy consumption is an important factor of restriction evaporation technique cost always in addition, mother liquor takes whole circular treatment greatly can increase the energy consumption of system, increases running cost.
In sum, the method for freezing and crystallizing technology and MVR technology recycling cross process mother liquor and device thereof, can address these problems effectively.
Accompanying drawing explanation
Fig. 1 is skeleton diagram of the present invention;
Fig. 2 is process flow sheet of the present invention.
Embodiment
By reference to the accompanying drawings the present invention is described further:
As depicted in figs. 1 and 2, Yuan Shuiwei industrial park brine waste handled by present method is through Using Multistage Membranes concentration, the main water containing sodium-chlor obtained after membrane sepn and the water containing sodium sulfate, these two strands of water are eventually through the main dense water containing sodium-chlor of gained after the process of high-pressure membrane concentration systems and the dense water (hereinafter referred to as the dense water of sodium-chlor, the dense water of sodium sulfate) containing sodium sulfate.The dense water TDS of sodium-chlor is more than 140,000, the dense water TDS of sodium sulfate more than 180,000, the dense water of sodium sulfate after the process of freezing and crystallizing system, output technical grade saltcake and mother liquor A, the mother liquor A produced needs to discharge from system, and the mother liquor A of discharge enters MVR system and carries out evaporative crystallization; The dense water of sodium-chlor after the process of MVR system, output industrial crystallization salt and mother liquor B, the mother liquor B of generation needs to discharge from system, and the mother liquor B of discharge enters freezing and crystallizing system and carries out freezing and crystallizing; Described mother liquor A or mother liquor B enters after MVR system or freezing and crystallizing system carry out evaporative crystallization or Freeze crystallization, obtain mother liquor B or mother liquor A, described mother liquor A or mother liquor B together enters MVR system after mixing with the dense water of described sodium-chlor or the dense water of sodium sulfate or freezing and crystallizing system carries out evaporative crystallization or Freeze crystallization, moves in circles.
This method analysis is learnt, freezing and crystallizing saltcake MVR out evaporative crystallization to obtain the purity of sodium-chlor all very high.Concrete calculating sees the following form, and as seen after third time circulation, the salt amount that goes out of freezing and crystallizing and MVR keeps relative constancy.
Embodiment:
The mother liquor A of freezing and crystallizing is after the repeatedly circulation of refrigeration system, and in the mother liquor A of discharge, the content of sodium-chlor is high, and this can be connected by the liquid-inlet pipe of pipeline with MVR system, and such mother liquor A together enters MVR system after just can mixing with the dense water of sodium-chlor, MVR system principle is exactly by the boiling point of temperature increase to water, is evaporated by water from system, because saturated solution principle, crystal salt can be separated out from system, MVR salt slurry out can produce centrifuge mother liquor B by high speed centrifugation, centrifuge mother liquor B now needs to discharge from system, and the centrifuge mother liquor B discharged enters freezing and crystallizing system again by the pipeline be connected with the fluid inlet of the crystallizer in freezing and crystallizing system, mother liquor B is after the process of freezing and crystallizing system, obtain the mother liquor A of freezing and crystallizing, the mother liquor A of freezing and crystallizing is after the repeatedly circulation of freezing and crystallizing system, in the mother liquor A discharged, the content of sodium-chlor is high, by the pipeline be connected with the liquid-inlet pipe of MVR system, water dense with sodium-chlor together enters MVR system after mixing and processes again, go round and begin again, move in circles and process.

Claims (5)

1. the crystallizing treatment process of a high slat-containing wastewater, handled former water is the dense water of sodium-chlor and the dense water of sodium sulfate of high slat-containing wastewater gained after Chemical Pretreatment, Using Multistage Membranes concentration and the process of high-pressure membrane concentration systems, it is characterized in that: the dense water of sodium sulfate is after the process of freezing and crystallizing system, output technical grade saltcake and mother liquor A, the mother liquor A produced needs to discharge from system, and the mother liquor A of discharge accesses MVR system and carries out evaporative crystallization;
The dense water of sodium-chlor is after the process of MVR system, and output industrial crystallization salt and mother liquor B, the mother liquor B of generation needs to discharge from system, and the mother liquor B of discharge enters freezing and crystallizing system and carries out freezing and crystallizing.
2. the crystallizing treatment process of a kind of high slat-containing wastewater according to claim 1, it is characterized in that: after described mother liquor A or mother liquor B access MVR system or freezing and crystallizing system carry out evaporative crystallization or Freeze crystallization, obtain mother liquor B or mother liquor A, mother liquor B or mother liquor A enters again freezing and crystallizing system or MVR system carries out freezing and crystallizing or evaporative crystallization process, moves in circles.
3. the crystallizing treatment process of a kind of high slat-containing wastewater according to claim 1 and 2, is characterized in that: described mother liquor A together enters MVR system after mixing with the dense water of described sodium-chlor and carries out evaporative crystallization process.
4. the crystallizing treatment process of a kind of high slat-containing wastewater according to claim 2, is characterized in that: described cycle index at least three times.
5. the crystallization treatment device of a high slat-containing wastewater, comprise: MVR system and freezing and crystallizing system, described MVR system adopts two sections of serial plate type heat exchangers to carry out thermal pretreatment to the sodium-chlor strong brine that liquid-inlet pipe is come in, after preheating, material enters Falling film heat transfer device, heat exchange is carried out with the steam heated up after compression, then material and steam enter falling film separator and carry out gas-liquid separation, after being separated, liquid enters pump circulation interchanger increasing temperature and pressure, then in crystal separator, carry out flash distillation, separate out small-particle crystal, separate out crystal by crystal separator bottom discharging to centrifugal separating device, crystal packing after centrifugal, a part of mother liquor B after separation returns system and proceeds evaporation concentration after heating, part mother liquor B is by outside leakage fluid dram discharge system, described freezing and crystallizing system dense for sodium sulfate water is first delivered to pre-cooler from the dense water tank of sodium sulfate tentatively lower the temperature, the dense water of sodium sulfate after cooling enters the circulation feed liquid pipeline of crystallisation by cooling system, after mixing with circulation feed liquid and water cooler carry out heat exchange, cooled supersaturation feed liquid enters crystallizer, enter bottom crystallisation chamber via crystallizer internal flow, contact with crystal grain crystalline growth step by step class settling discharge carry out centrifugation to centrifugal separating device, crystal packing after centrifugal, a part of mother liquor A after separation and crystallizer upper strata feed liquid enter again circulating line further water dense with sodium sulfate mix, cooling, be circulated back to crystallisation chamber and again participate in crystallization, circulation like this continuous seepage crystalline product, part mother liquor A is by outside leakage fluid dram discharge system, it is characterized in that: the leakage fluid dram of the centrifugal separating device in described MVR system is connected with a fluid inlet of the crystallizer in freezing and crystallizing system by pipeline, the leakage fluid dram of the centrifugal separating device in described freezing and crystallizing system is connected by the liquid-inlet pipe of pipeline with MVR system.
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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105152186A (en) * 2015-08-19 2015-12-16 石家庄工大化工设备有限公司 Technique for simple substance salt separation with co-production of sodium sulfide from high-salinity wastewater
CN105254104A (en) * 2015-11-06 2016-01-20 江苏京源环保股份有限公司 Desulphurization wastewater zero discharge treatment process for power plant with low running cost
CN105384293A (en) * 2015-11-16 2016-03-09 河北钢铁股份有限公司承德分公司 Treatment method for vanadium precipitation wastewater subjected to impurity removal and deamination
CN105645439A (en) * 2016-01-30 2016-06-08 内蒙古久科康瑞环保科技有限公司 System for preparing potassium sulfate from high-salt-content industrial wastewater and technology of system
CN105664521A (en) * 2016-02-25 2016-06-15 多氟多化工股份有限公司 Dynamic crystallization equipment and dynamic crystallization method
CN105712553A (en) * 2016-04-06 2016-06-29 北京高能时代环境技术股份有限公司 Device and process for preparing salt through ionic membrane salt separation, concentration crystallization and freezing crystallization
CN106007135A (en) * 2016-05-27 2016-10-12 湖南傲创科技有限公司湘潭分公司 Potassium perchlorate effluent brine treatment apparatus, and technology for recovering potassium perchlorate and sodium chloride from potassium perchlorate effluent brine
CN106145223A (en) * 2016-08-01 2016-11-23 江苏星瑞化工工程科技有限公司 A kind of processing method of high-salt wastewater
CN106219573A (en) * 2016-08-26 2016-12-14 海洲环保集团有限公司 A kind of except scar salt production system
CN106630398A (en) * 2016-12-02 2017-05-10 国家海洋局天津海水淡化与综合利用研究所 Method for treating high-salt organic wastewater
CN108046361A (en) * 2017-12-26 2018-05-18 国家海洋局天津海水淡化与综合利用研究所 A kind of high power concentration distillation system for desalination and method based on induction crystallisation
CN108203197A (en) * 2015-12-23 2018-06-26 倍杰特国际环境技术股份有限公司 A kind of processing system of brine waste
CN108218078A (en) * 2015-12-23 2018-06-29 倍杰特国际环境技术股份有限公司 The processing method and system of a kind of brine waste
CN108275815A (en) * 2015-12-23 2018-07-13 倍杰特国际环境技术股份有限公司 A kind of high-salinity wastewater zero-emission crystalline salt by evaporation quality-dividing system and method
CN109422403A (en) * 2017-08-28 2019-03-05 中国石油化工股份有限公司 The processing method of catalyst production waste water
CN109422314A (en) * 2017-08-28 2019-03-05 中国石油化工股份有限公司 The processing method of catalyst production waste water
CN109422399A (en) * 2017-08-28 2019-03-05 中国石油化工股份有限公司 The processing method of ammonium salt-containing waste water
CN109422406A (en) * 2017-08-28 2019-03-05 中国石油化工股份有限公司 The processing method of catalyst production waste water
US10829401B2 (en) 2017-08-28 2020-11-10 China Petroleum & Chemical Corporation Apparatus and method for treating waste water containing ammonium salts

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1093341A (en) * 1993-04-07 1994-10-12 上海南泽给排水工程技术公司 Freezing method for desalting seawater and the device that combines with evaporation
DE10256046A1 (en) * 2002-11-30 2004-06-09 Kali-Umwelttechnik Gmbh K-Utec Production of epsomite and sodium chloride from bittern comprises adding recycled mother liquor, concentrating to crystallize sodium chloride and cooling to crystallize epsomite
CN1513835A (en) * 2003-07-15 2004-07-21 郑守樽 Recovery method of heavily polluated substance produced during production of foaming agent and device
CN1513834A (en) * 2003-07-15 2004-07-21 郑守樽 Recovery method of heavily polluted substance produced in ADC foaming agent production process and its device
CN101435082A (en) * 2008-12-05 2009-05-20 同济大学 Method for processing pickle liquor by negative pressure outer circulation continuous evaporation continuous freezing crystallization process
CN101935128A (en) * 2010-07-22 2011-01-05 上海西恩化工设备有限公司 Process for treating wastewater comprising high-concentration ammonium salt and sodium salt
CN102249262A (en) * 2011-04-29 2011-11-23 史永军 Concentration and cold-precipitation separation method of sodium sulfate and ammonium sulfate from vanadium-precipitation mother liquor high-salt wastewater
CN102351590A (en) * 2011-07-18 2012-02-15 贵州省化工研究院 Method for producing high-water solubility nitrophosphate fertilizer by phosphorite nitrolysis and calcium nitrate freezing
CN103539281A (en) * 2013-02-05 2014-01-29 金能科技股份有限公司 White carbon black production wastewater treatment technology
CN103864253A (en) * 2014-03-13 2014-06-18 郭强 Salt-containing wastewater treatment device and method
CN204417272U (en) * 2014-12-22 2015-06-24 内蒙古久科康瑞环保科技有限公司 A kind of crystallization treatment device of high slat-containing wastewater

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1093341A (en) * 1993-04-07 1994-10-12 上海南泽给排水工程技术公司 Freezing method for desalting seawater and the device that combines with evaporation
DE10256046A1 (en) * 2002-11-30 2004-06-09 Kali-Umwelttechnik Gmbh K-Utec Production of epsomite and sodium chloride from bittern comprises adding recycled mother liquor, concentrating to crystallize sodium chloride and cooling to crystallize epsomite
CN1513835A (en) * 2003-07-15 2004-07-21 郑守樽 Recovery method of heavily polluated substance produced during production of foaming agent and device
CN1513834A (en) * 2003-07-15 2004-07-21 郑守樽 Recovery method of heavily polluted substance produced in ADC foaming agent production process and its device
CN101435082A (en) * 2008-12-05 2009-05-20 同济大学 Method for processing pickle liquor by negative pressure outer circulation continuous evaporation continuous freezing crystallization process
CN101935128A (en) * 2010-07-22 2011-01-05 上海西恩化工设备有限公司 Process for treating wastewater comprising high-concentration ammonium salt and sodium salt
CN102249262A (en) * 2011-04-29 2011-11-23 史永军 Concentration and cold-precipitation separation method of sodium sulfate and ammonium sulfate from vanadium-precipitation mother liquor high-salt wastewater
CN102351590A (en) * 2011-07-18 2012-02-15 贵州省化工研究院 Method for producing high-water solubility nitrophosphate fertilizer by phosphorite nitrolysis and calcium nitrate freezing
CN103539281A (en) * 2013-02-05 2014-01-29 金能科技股份有限公司 White carbon black production wastewater treatment technology
CN103864253A (en) * 2014-03-13 2014-06-18 郭强 Salt-containing wastewater treatment device and method
CN204417272U (en) * 2014-12-22 2015-06-24 内蒙古久科康瑞环保科技有限公司 A kind of crystallization treatment device of high slat-containing wastewater

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CN105254104A (en) * 2015-11-06 2016-01-20 江苏京源环保股份有限公司 Desulphurization wastewater zero discharge treatment process for power plant with low running cost
CN105384293A (en) * 2015-11-16 2016-03-09 河北钢铁股份有限公司承德分公司 Treatment method for vanadium precipitation wastewater subjected to impurity removal and deamination
CN105384293B (en) * 2015-11-16 2019-02-22 河钢股份有限公司承德分公司 A kind of processing method of the vanadium wastewater after the deamination that cleans
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CN108218078B (en) * 2015-12-23 2020-07-31 倍杰特集团股份有限公司 Method and system for treating salt-containing wastewater
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CN105645439A (en) * 2016-01-30 2016-06-08 内蒙古久科康瑞环保科技有限公司 System for preparing potassium sulfate from high-salt-content industrial wastewater and technology of system
CN105645439B (en) * 2016-01-30 2017-09-26 内蒙古久科康瑞环保科技有限公司 A kind of system and its technique that potassium sulfate is prepared using high saliferous industrial wastewater
CN105664521A (en) * 2016-02-25 2016-06-15 多氟多化工股份有限公司 Dynamic crystallization equipment and dynamic crystallization method
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CN109422403A (en) * 2017-08-28 2019-03-05 中国石油化工股份有限公司 The processing method of catalyst production waste water
US10829401B2 (en) 2017-08-28 2020-11-10 China Petroleum & Chemical Corporation Apparatus and method for treating waste water containing ammonium salts
CN108046361A (en) * 2017-12-26 2018-05-18 国家海洋局天津海水淡化与综合利用研究所 A kind of high power concentration distillation system for desalination and method based on induction crystallisation
CN108046361B (en) * 2017-12-26 2021-03-30 国家海洋局天津海水淡化与综合利用研究所 High-concentration distillation desalination system and method based on induced crystallization method

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