CN101851042B - Method for treating organic silicon wastewater by using electrostatic film coagulation reactor - Google Patents
Method for treating organic silicon wastewater by using electrostatic film coagulation reactor Download PDFInfo
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- CN101851042B CN101851042B CN201010193862A CN201010193862A CN101851042B CN 101851042 B CN101851042 B CN 101851042B CN 201010193862 A CN201010193862 A CN 201010193862A CN 201010193862 A CN201010193862 A CN 201010193862A CN 101851042 B CN101851042 B CN 101851042B
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Abstract
The invention discloses a method for treating organic silicon wastewater by using an electrostatic film coagulation reactor, which relates to the technology of wastewater treatment. The invention provides the method and a device thereof for treating the organic silicon wastewater by using the electrostatic film coagulation reactor. The device is provided with an electrostatic water treatment device and a film coagulation reactor, wherein the water outlet end of the electrostatic water treatment device is communicated with the water inlet end of the film coagulation reactor. The electrostatic water treatment device is provided with a water treatment device and a high-voltage direct-current power supply. The top of the film coagulation reactor is covered, the bottom is provided with a perforated aeration pipe and connected with an air pump, and the upper part is provided with a membrane separation assembly; and the outlet end of the membrane separation assembly is connected with a suction pump. The method comprises the following steps of: introducing the organic silicon wastewater to the water inlet of the electrostatic water treatment device, and communicating the water outlet of the electrostatic water treatment device and the water inlet end of the film coagulation reactor; starting a booster pump at the water inlet of the electrostatic water treatment device, and starting the electrostatic water treatment device; adding a water treatment reagent into a chemical reactor of the film coagulation reactor, opening the air pump to perform aeration so that the suspended solid in the organic silicon wastewater forms floccules, and removing the floccules; and keeping normal operation of the equipment.
Description
Technical field
The present invention relates to a kind of wastewater processing technology, especially relate to a kind of method of utilizing electrostatic film coagulation reactor to handle organic silicon wastewater.
Background technology
The organosilicon project can produce certain amount of industrial waste water in construction and operation process.Mainly contain AOX, COD, Zn
2+, Cu
2+Deng pollutent; In order to alleviate or to avoid the pollution of project, must take reasonable technology that organic silicon wastewater is effectively handled (Wang Wenying, Pan Caiping to environment; Wang Bo. certain organosilicon project Sewage Treatment in Process Design [J]. tech enterprises in China .2007,59 (6): 5-8).
The organosilicon trade effluent belongs to high-concentration waste water, and this wastewater toxicity is big, biology be difficult to degraded (Yuan Jingsong, Wu Haifeng, Zhang Zaili. high concentration organic silicon waste water biologic treating technique research [J]. environment protection .1999,19 (3): 3-5).
The static water technology is the technology that grows up in recent decades, and in water treatment, has shown particular performances.Under the effect of high tension electrostatic field, can produce a certain amount of active oxygen and ozone in the water, they all are strong oxidizers, can suppress, kill bacterium, algae in the water, and water is carried out disinfection.The static activated water can make microorganism wall break simultaneously, and protoplasma flows out, and reaches the effect of bacteria inactivation rate equally.In addition; This technology also has the effect that stops incrustation scale to generate, and this system can be applied to the occasion that Industrial Boiler, heating boiler, industrial cycle cooling system etc. need carry out water treatment, will bring good economic benefit and social benefit (Wang Shuohe for the user; Gao Meng; Zhang Xiaomin. domestic water static water technology research [J]. Railway Institutes Of Shijiazhuang's journal, 2002,15 (1): 23-30).
Film coagulation reactor (MCR) is the combination of coagulation and membrane separation technique, and former water adopts immersed membranes (ultrafiltration or micro-filtration technology) to handle with further raising effluent quality after coagulation reduces the Pollutant levels in the water again.The immersed membranes assembly is immersed in the pending water; System's floor space is little; And have that energy consumption is low, advantage (Zhang Guanghui such as the dirt of film is stifled less, long service life, antipollution thing portative power are strong; Gu Ping. based on the integration apparatus development research [J] of micro-filtration art breading micro-polluted surface water. water technology, 2004,30 (5): 292-296).
Summary of the invention
The object of the present invention is to provide a kind of electrostatic film coagulation reactor wastewater treatment equipment.
Another object of the present invention is to provide a kind of method of utilizing electrostatic film coagulation reactor to handle organic silicon wastewater.
Electrostatic film coagulation reactor wastewater treatment equipment according to the invention is provided with electrostatic water treating device and film coagulation reactor, and the water side of electrostatic water treating device is communicated with the feed-water end of film coagulation reactor.
Said electrostatic water treating device is provided with water treating device and high-voltage DC power supply.Water treating device is provided with anode and negative electrode; Anode is provided with metal mandrel and sleeve pipe, and metal mandrel is located in the sleeve pipe, forms a cavity between negative electrode and the anode; So that need carry out the water of Electrostatic Treatment can pass through from the cavity between anode and the negative electrode; And carry out Electrostatic Treatment, and high-voltage DC power supply is anodal to be electrically connected with the water treating device anode, and the high-voltage DC power supply negative pole is connected with the cathodic electricity of water treating device.
Add a cover at said film coagulation reactor top, and the film coagulation reactor bottom is provided with the perforated aeration tube and is connected with air pump, and film coagulation reactor top is provided with membrane separation assemblies, and the membrane separation assemblies exit end is connected with suction pump.
Said membrane separation assemblies can adopt antipollution sludge proof pvdf (PVDF) membrane separation assemblies.
Said film coagulation reactor can adopt the flat film coagulation reactor of 9L, and manufacturer is an Xiamen SanDa film Science ltd.
A kind of method of utilizing electrostatic film coagulation reactor to handle organic silicon wastewater according to the invention is used said electrostatic film coagulation reactor wastewater treatment equipment, may further comprise the steps:
1) organic silicon wastewater is fed the feed-water end of the electrostatic water treating device of electrostatic film coagulation reactor wastewater treatment equipment, the water side of electrostatic water treating device is communicated with the feed-water end of film coagulation reactor;
2) energized switch, the intake pump of startup electrostatic water treating device feed-water end starts electrostatic water treating device;
3) water treatment agent is added in the reaction apparatus of film coagulation reactor, open the air pump aeration, make the suspended solids in the organic silicon wastewater under the effect of water treatment agent, form floss, from organic silicon wastewater, remove;
4) normal operating conditions of maintenance aforesaid device, in the time of need quitting work, disconnecting power switch.
In step 3), the concentration of said water treatment agent can be 2～8mg/L; Said water treatment agent can adopt KRT-2 high-efficiency refuse percolate to handle medicament, and manufacturer is Xiamen Kairuier environment-protection Co., Ltd..
Principle of work of the present invention is under the effect of high tension electrostatic field, can produce a certain amount of active oxygen and ozone in the water, and they all are strong oxidizers, can suppress, kill bacterium, algae in the water, and water is carried out disinfection.The static activated water can make microorganism wall break simultaneously, and protoplasma flows out, and reaches the effect of bacteria inactivation rate equally, and oxidation operation is decomposed.
Adopt the present invention to have following significant advantage and effect:
1, the present invention is on-line automatic operation form, can guarantee that organic silicon wastewater is handled uninterruptedly to carry out.
2, organic silicon wastewater can produce a certain amount of active oxygen and ozone through electrostatic treater high voltage direct current field action in the waste water, and the organism in the waste water is played the oxide treatment effect, improves the water chemistry reactive behavior of this waste water.
3, the film coagulation reactor coagulation effect is good, can effectively remove suspended substance and organic composition in the waste water, and through the membrane separation assemblies water outlet, water quality is respond well.
4, handle waste water time weak point, efficient is high, and energy consumption is low, the treatment facility less investment, and floor space is little.
Description of drawings
Fig. 1 is that the structure of the embodiment of the invention is formed synoptic diagram.
Embodiment
Following embodiment combines accompanying drawing that the present invention is described further.
Referring to Fig. 1; Electrostatic film coagulation reactor wastewater treatment equipment embodiment according to the invention is provided with electrostatic water treating device 2 and film coagulation reactor 3; The feed-water end of electrostatic water treating device 2 connects the water side of influent waste water system 1 through force (forcing) pump 5; The water side of electrostatic water treating device 2 is communicated with the feed-water end of film coagulation reactor 3; Water inlet gets in the reaction apparatus of film coagulation reactor 3, the external air pump 6 of reaction apparatus, and the water side after the membrane separation assemblies 4 of film coagulation reactor 3 filters is through outlet system 7 dischargings.
Said electrostatic water treating device is provided with water treating device and high-voltage DC power supply.Water treating device is provided with anode and negative electrode; Anode is provided with metal mandrel and sleeve pipe, and metal mandrel is located in the sleeve pipe, forms a cavity between negative electrode and the anode; So that need carry out the water of Electrostatic Treatment can pass through from the cavity between anode and the negative electrode; And carry out Electrostatic Treatment, and high-voltage DC power supply is anodal to be electrically connected with the water treating device anode, and the high-voltage DC power supply negative pole is connected with the cathodic electricity of water treating device.
Add a cover at said film coagulation reactor top, and the film coagulation reactor bottom is provided with the perforated aeration tube and is connected with air pump, and film coagulation reactor top is provided with membrane separation assemblies, and the membrane separation assemblies exit end is connected with suction pump.Film contact reactor absorption liquid inlet end, exit end partly are connected with hollow-fibre membrane silk two ends end socket.
Said membrane separation assemblies can adopt antipollution sludge proof pvdf (PVDF) membrane separation assemblies.
The cavity that the negative electrode of water treating device and anode form between the two can pass through the water that need carry out Electrostatic Treatment from the cavity between anode and the negative electrode, and carries out Electrostatic Treatment.High voltage direct current just produces a strong electrostatic field in the cavity of water treating device; Water to flowing through in the cavity carries out Electrostatic Treatment, can produce a certain amount of active oxygen and ozone in the water, and they all are strong oxidizers; Can suppress, kill bacterium, algae in the water, water is carried out disinfection.Electrostatic water treating device two electrostatic potentials that interpolar adds are generally 3400～6000V.
It is the electrostatic water treating device of ESC-100 type that said electrostatic water treating device can adopt model, and manufacturer is Nanjing Water Management Equipment Ltd. of Pukou District Nanjing University.High-voltage DC power supply input voltage 220V voltage of alternating current, the output voltage of high-voltage DC power supply is 4～5kV volts DS, water treating device outer tube diameter 150mm; The outer length of tube 1.2m of water treating device, tetrafluoroethylene O.D.T. 110mm, polyfluortetraethylene pipe voltage breakdown 10kV; Polyfluortetraethylene pipe tensile strength 19.6MPa, polyfluortetraethylene pipe tension set >=250%, water-in diameter 76.2mm; Water outlet diameter 101.6mm, power consumption 15W, continuously-running duty; Peak flow 100t/h, physical dimension 1200mm * 280mm * 450mm.
Said film coagulation reactor can adopt the flat film coagulation reactor of 9L, and manufacturer is an Xiamen SanDa film Science ltd.
Following examples are former water with the organic silicon wastewater that Jiangxi organosilicon production project is produced, and the condition of water quality of waste water is: COD concentration is 2200～3000mg/L, BOD
5Be 390～600mg/L, the pH value is 1.8～2.2.Organic silicon wastewater feeds electrostatic water treating device; Water outlet gets in the reaction apparatus of film coagulation reactor; The KRT-2 water treatment agent is added in the reaction apparatus of film coagulation reactor by 2～8mg/L concentration, open the air pump aeration, make suspended solids and organism in the organic silicon wastewater under the effect of water treatment agent, form floss and from organic silicon wastewater, remove; Filter water outlet, qualified discharge through membrane separation assemblies.
Organic silicon wastewater water quality is following: COD concentration is 2230mg/L, BOD
5Be 396mg/L, the pH value is 1.8, and the hydraulic detention time of electrostatic water treating device is 2h; The hydraulic detention time of film coagulation reactor is 3h, and the KRT-2 water treatment agent adds by 2mg/L concentration, moves after 10 days; Effluent quality MV is: COD concentration is 58mg/L, BOD
5Be 49mg/L, the pH value is 7.2.
Organic silicon wastewater water quality is following: COD concentration is 2870mg/L, BOD
5Be 425mg/L, the pH value is 2.6, and the hydraulic detention time of electrostatic water treating device is 2h; The hydraulic detention time of film coagulation reactor is 3h, and the KRT-2 water treatment agent adds by 5mg/L concentration, moves after 10 days; Effluent quality MV is: COD concentration is 65mg/L, BOD
5Be 76mg/L, the pH value is 7.5.
Organic silicon wastewater water quality is following: COD concentration is 2550mg/L, BOD
5Be 583mg/L, the pH value is 2.2, and the hydraulic detention time of electrostatic water treating device is 2h; The hydraulic detention time of film coagulation reactor is 3h, and the KRT-2 water treatment agent adds by 8mg/L concentration, moves after 10 days; Effluent quality MV is: COD concentration is 83mg/L, BOD
5Be 81mg/L, the pH value is 7.8.
Claims (4)
1. method of utilizing electrostatic film coagulation reactor to handle organic silicon wastewater; It is characterized in that adopting the electrostatic film coagulation reactor wastewater treatment equipment; Said electrostatic film coagulation reactor wastewater treatment equipment is provided with electrostatic water treating device and film coagulation reactor, and the water side of electrostatic water treating device is communicated with the feed-water end of film coagulation reactor; Said electrostatic water treating device is provided with water treating device and high-voltage DC power supply; Water treating device is provided with anode and negative electrode, and anode is provided with metal mandrel and sleeve pipe, and metal mandrel is located in the sleeve pipe, forms a cavity between negative electrode and the anode; High-voltage DC power supply is anodal to be electrically connected with the water treating device anode, and the high-voltage DC power supply negative pole is connected with the cathodic electricity of water treating device; Add a cover at said film coagulation reactor top, and the film coagulation reactor bottom is provided with the perforated aeration tube and is connected with air pump, and film coagulation reactor top is provided with membrane separation assemblies, and the membrane separation assemblies exit end is connected with suction pump; It is the electrostatic water treating device of ESC-100 type that said electrostatic water treating device adopts model, high-voltage DC power supply input voltage 220V voltage of alternating current, and the output voltage of high-voltage DC power supply is 4～5kV volts DS; Water treating device outer tube diameter 150mm, the outer length of tube 1.2m of water treating device, tetrafluoroethylene O.D.T. 110mm; Polyfluortetraethylene pipe voltage breakdown 10kV, polyfluortetraethylene pipe tensile strength 19.6MPa, polyfluortetraethylene pipe tension set >=250%; Water-in diameter 76.2mm, water outlet diameter 101.6mm, power consumption 15W; Continuously-running duty, peak flow 100t/h;
Said method comprising the steps of:
1) organic silicon wastewater is fed the feed-water end of the electrostatic water treating device of electrostatic film coagulation reactor wastewater treatment equipment, the water side of electrostatic water treating device is communicated with the feed-water end of film coagulation reactor;
2) energized switch, the intake pump of startup electrostatic water treating device feed-water end starts electrostatic water treating device;
3) water treatment agent is added in the reaction apparatus of film coagulation reactor, open the air pump aeration, make the suspended solids in the organic silicon wastewater under the effect of water treatment agent, form floss, from organic silicon wastewater, remove;
4) normal operating conditions of maintenance aforesaid device, in the time of need quitting work, disconnecting power switch.
2. a kind of method of utilizing electrostatic film coagulation reactor to handle organic silicon wastewater as claimed in claim 1 is characterized in that said membrane separation assemblies is the pvdf membrane separation assemblies.
3. a kind of method of utilizing electrostatic film coagulation reactor to handle organic silicon wastewater as claimed in claim 1 is characterized in that said film coagulation reactor adopts the flat film coagulation reactor of 9L.
4. a kind of method of utilizing electrostatic film coagulation reactor to handle organic silicon wastewater as claimed in claim 1 is characterized in that in step 3) the concentration of said water treatment agent is 2～8mg/L.
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| CN103408181B (en) * | 2013-08-23 | 2015-06-10 | 湖北兴发化工集团股份有限公司 | Pretreatment method of organic silicon monomer production wastewater |
| CN105439335B (en) * | 2015-12-21 | 2018-07-31 | 广东水清环保科技有限公司 | A kind of electroless copper plating waste water copper removal treatment process and its system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2493614Y (en) * | 2001-08-06 | 2002-05-29 | 雷琳 | Neutral water treatment reuse vehicle-washing equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2493614Y (en) * | 2001-08-06 | 2002-05-29 | 雷琳 | Neutral water treatment reuse vehicle-washing equipment |
Non-Patent Citations (3)
| Title |
|---|
| Kazuki Akamatsu et al.Development of a novel fouling suppression system in membrane bioreactors using an intermittent electric field.《Water Research》.2009,第44卷(第3期),第825-830页. * |
| 刘岩.膜混凝反应器水处理的研究.《中国优秀博硕学位论文数据库(硕士)工程科技Ⅱ辑》.2005,(第1期),第8-9、16-17页. * |
| 周本省.静电水处理与电子水处理及其在冷却水处理中的应用.《工业冷却水处理的物理方法及工程应用》.化学工业出版社,2008,(第1版),第5-6页. * |
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