CN103304078A - Laboratory wastewater treatment process equipment and wastewater treatment method using same - Google Patents

Laboratory wastewater treatment process equipment and wastewater treatment method using same Download PDF

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CN103304078A
CN103304078A CN201310286286XA CN201310286286A CN103304078A CN 103304078 A CN103304078 A CN 103304078A CN 201310286286X A CN201310286286X A CN 201310286286XA CN 201310286286 A CN201310286286 A CN 201310286286A CN 103304078 A CN103304078 A CN 103304078A
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tank
pump
dosing
waste water
intermediate pool
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李铁龙
王建友
王亮
鞠美庭
曹井国
于俊利
李琪
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TIANJIN ZHONGTIAN HAISHENG ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Nankai University
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TIANJIN ZHONGTIAN HAISHENG ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Nankai University
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Abstract

本发明提供一种实验室废水处理工艺设备及使用其的废水处理方法,包括调节池、混凝沉淀池、电气自控装置;调节池的上方连通有pH调节装置;调节池通过提升泵与上方连通有混凝加药装置的混凝沉淀池相连;混凝沉淀池的上端连接有中间水池,中间水池的上方连通有臭氧发生器;中间水池的另一端依次串联有过滤泵、石英砂过滤器、活性炭过滤器、缓冲水池、超滤膜组件、反渗透模块、电去离子模块、产水池;混凝沉淀池的底端管连接有污泥收集箱,污泥收集箱通过螺杆泵连接有压滤机。本发明的有益效果是经处理的实验室废水可回用,也可进行深度处理,获得高品质产水,实现实验室废水的再生利用;具有结构简单、适用范围广、操作简单等优点。

Figure 201310286286

The invention provides a laboratory wastewater treatment process equipment and a wastewater treatment method using the wastewater treatment method, including a regulating tank, a coagulation sedimentation tank, and an electrical automatic control device; a pH adjusting device is connected to the top of the regulating pond; the regulating pond is connected to the top through a lift pump The coagulation sedimentation tank with coagulation dosing device is connected; the upper end of the coagulation sedimentation tank is connected to an intermediate pool, and the upper end of the intermediate pool is connected to an ozone generator; the other end of the intermediate pool is connected in series with a filter pump, a quartz sand filter, Activated carbon filter, buffer tank, ultrafiltration membrane module, reverse osmosis module, electrodeionization module, water production tank; the bottom pipe of the coagulation sedimentation tank is connected to a sludge collection box, and the sludge collection box is connected to a press filter through a screw pump machine. The beneficial effect of the invention is that the treated laboratory wastewater can be reused, and can also be subjected to advanced treatment to obtain high-quality water and realize the recycling of laboratory wastewater; it has the advantages of simple structure, wide application range, simple operation and the like.

Figure 201310286286

Description

一种实验室废水处理工艺设备及使用其的废水处理方法A laboratory wastewater treatment process equipment and a wastewater treatment method using the same

技术领域technical field

本发明涉及一种废水处理工艺设备及废水处理方法,尤其是涉及一种实验室废水处理工艺设备及使用其的废水处理方法。The invention relates to a wastewater treatment process equipment and a wastewater treatment method, in particular to a laboratory wastewater treatment process equipment and a wastewater treatment method using the same.

背景技术Background technique

随着科学研究越来越深入、广泛,各高等院校和科研院所的试验室废水处理问题日益突出,由于实验室废水水质极为复杂且难以预测,排放周期不定,废水量亦无规律,故而实验室废水的综合处理乃至资源化回用属于世界性难题。虽然实验室废水的排放量显著少于工业废水,但鉴于其往往含有酸碱液、有毒有害三致物、重金属以及一些新生物质,污染成分复杂,且存在瞬时高污染浓度等风险,极有可能造成污染事故,因此危害性不容小视,加强实验室废水管理,对实验室废水进行有效处理乃至回用势在必行,然而当前国内外关于实验室废水有效处理技术及工艺的研究还很薄弱,尤其是我国对实验室废水排放问题关注极为不够,尚没有完善的管理规范,同时也缺乏相应的配套技术工艺,目前各实验室废水基本未作处理而直接排入市政管网,为尽快制定实验室废水排放的管理措施,急需进行实验室废水处理技术工艺的研究及设备的研制开发。With the deepening and widening of scientific research, the problem of laboratory wastewater treatment in universities and scientific research institutes has become increasingly prominent. Because the quality of laboratory wastewater is extremely complex and difficult to predict, the discharge cycle is uncertain, and the amount of wastewater is also irregular. Therefore, The comprehensive treatment and recycling of laboratory wastewater is a worldwide problem. Although the discharge of laboratory wastewater is significantly less than that of industrial wastewater, since it often contains acid and alkali, toxic and harmful substances, heavy metals and some new substances, the pollution components are complex, and there are risks such as instantaneous high pollution concentrations, it is very likely Pollution accidents are caused, so the hazards cannot be underestimated. It is imperative to strengthen the management of laboratory wastewater and effectively treat and reuse laboratory wastewater. However, the current domestic and foreign research on effective treatment technologies and processes for laboratory wastewater is still very weak. In particular, our country has not paid enough attention to the discharge of laboratory wastewater. There is no perfect management specification, and there is also a lack of corresponding supporting technologies. At present, the wastewater from various laboratories is basically discharged into the municipal pipe network without treatment. There is an urgent need for laboratory wastewater treatment technology research and equipment research and development.

中国专利,专利号为201120302893.7公开了一种“实验室废水处理装置”其由废水收集罐、调节池、反应槽、沉降池和活性炭滤池构成;废水收集罐利用管道和调节池相连;调节池再通过带污水泵的管道和反应槽相连;反应槽的出水管和沉降池相连,沉降池的溢流管和活性炭滤池相连,活性炭滤池连接净水排放管。该装置的缺点是,工艺简单,适用范围较窄,仅能作为简单预处理。Chinese patent, Patent No. 201120302893.7 discloses a "laboratory wastewater treatment device" which is composed of a wastewater collection tank, a regulating tank, a reaction tank, a settling tank and an activated carbon filter; the wastewater collecting tank is connected to the regulating tank by pipes; the regulating tank It is connected to the reaction tank through a pipeline with a sewage pump; the outlet pipe of the reaction tank is connected to the settling tank, the overflow pipe of the settling tank is connected to the activated carbon filter, and the activated carbon filter is connected to the clean water discharge pipe. The disadvantage of this device is that the process is simple, the scope of application is narrow, and it can only be used as a simple pretreatment.

中国专利,专利号为200920194435.9,公开了“一种实验室废水处理装置”,该装置包括电控系统和废水处理单元,所述废水处理单元包括前后依次连接的集水池、内电解池、微电解池、生物吸附池和沉淀池,所述内电解池、微电解池和生物吸附池中设有曝气系统;此外,还设置污泥过滤池用于处理污泥。该装置的缺点是,投资和运行费用高,残留有机物浓度高。Chinese patent, patent number 200920194435.9, discloses "a laboratory wastewater treatment device", which includes an electronic control system and a wastewater treatment unit, and the wastewater treatment unit includes a water collection pool, an internal electrolysis pool, a micro electrolysis Pool, biological adsorption tank and sedimentation tank, the inner electrolytic tank, micro-electrolytic tank and biological adsorption tank are provided with an aeration system; in addition, a sludge filter tank is also provided for sludge treatment. The disadvantage of this device is that the investment and operating costs are high, and the concentration of residual organic matter is high.

中国专利,专利号为201210258812.7,公开了“实验室废水处理装置”,该装置包括暂存箱、中和沉淀箱、耐酸泵,暂存箱上设有收集漏斗,中和沉淀箱上安装有pH计、投药箱、主轴,主轴上设有搅拌桨及电热芯,中和沉淀箱侧壁设有清液排放管,上端设有排气管,中和沉淀箱底部为沉降槽,沉降槽底部设有排料绞龙,排料绞龙出料口连接有离心分离机,离心分离机上设有出料口及排液管。该装置缺点是:缺乏有机物处理能力,也仅能作为实验废水的简单预处理,适用范围较小。Chinese patent, patent number 201210258812.7, discloses a "laboratory wastewater treatment device", which includes a temporary storage tank, a neutralization sedimentation tank, and an acid-resistant pump. The temporary storage tank is provided with a collection funnel, and the neutralization precipitation tank is equipped with a pH Meter, dosing box, main shaft, the main shaft is equipped with stirring paddle and electric heating core, the side wall of the neutralization sedimentation tank is equipped with a clear liquid discharge pipe, the upper end is equipped with an exhaust pipe, the bottom of the neutralization sedimentation tank is a sedimentation tank, and the bottom of the sedimentation tank is set There is a discharge auger, the outlet of the discharge auger is connected with a centrifuge, and the centrifuge is provided with a discharge port and a liquid discharge pipe. The disadvantage of this device is that it lacks the ability to treat organic matter, and it can only be used as a simple pretreatment of experimental wastewater, and its scope of application is small.

发明内容Contents of the invention

本发明要解决的问题是提供一种适用范围广、造作简单、产水可回用也可继续进行深度处理,获得高品质水实现实验室废水的再生利用的一种实验室废水处理工艺设备及使用其的废水处理方法,尤其适合各类实验室废水的处理及回用。The problem to be solved by the present invention is to provide a laboratory wastewater treatment process equipment with wide application range, simple manufacture, reusable water and further advanced treatment to obtain high-quality water to realize the regeneration and utilization of laboratory wastewater. The wastewater treatment method using it is especially suitable for the treatment and reuse of various laboratory wastewater.

为解决上述技术问题,本发明采用的技术方案是:一种实验室废水处理工艺设备,包括调节池、混凝沉淀池、中间水池、电气自控装置;所述调节池的上方通过加药管连通有pH调节装置;所述调节池通过提升泵与所述混凝沉淀池相连,所述混凝沉淀池的上方通过加药管连通有混凝加药装置;所述混凝沉淀池的上端通过管道连接有中间水池,所述中间水池的上方通过管道连通有臭氧发生器;所述中间水池的另一端通过管道依次串连接有过滤泵、石英砂过滤器、活性炭过滤器、缓冲水池、超滤膜组件、反渗透模块、电去离子模块、产水池;所述混凝沉淀池的底端通过排泥管连接有污泥收集箱,所述污泥收集箱通过螺杆泵连接有压滤机,所述污泥收集箱的上端与调节池的入水口相连;所述pH调节装置、提升泵、混凝加药装置、臭氧发生器、过滤泵、螺杆泵、压滤机均与所述电气自控装置电连接。In order to solve the above technical problems, the technical solution adopted by the present invention is: a laboratory wastewater treatment process equipment, including a regulating tank, a coagulation sedimentation tank, an intermediate pool, and an electrical automatic control device; There is a pH adjustment device; the adjustment tank is connected to the coagulation-settling tank through a lifting pump, and the coagulation-dosing device is connected to the top of the coagulation-settling tank through a dosing pipe; the upper end of the coagulation-settling tank passes through The pipeline is connected to an intermediate pool, and the top of the intermediate pool is connected to an ozone generator through a pipeline; the other end of the intermediate pool is connected in series through a pipeline to a filter pump, a quartz sand filter, an activated carbon filter, a buffer pool, an ultrafiltration Membrane module, reverse osmosis module, electrodeionization module, water production tank; the bottom of the coagulation sedimentation tank is connected to a sludge collection box through a sludge discharge pipe, and the sludge collection box is connected to a filter press through a screw pump, The upper end of the sludge collection tank is connected to the water inlet of the adjustment tank; the pH adjustment device, lift pump, coagulation dosing device, ozone generator, filter pump, screw pump, and filter press are all connected to the electric automatic control The device is electrically connected.

所述臭氧发生器用于降解污水中的有机物。The ozone generator is used for degrading organic matter in sewage.

进一步,所述调节池的入水口处设有格栅,且所述调节池内设有液位计、pH计以及搅拌器;所述中间水池、缓冲水池上均设有液位计;所述液位计、pH计均与所述电气自控装置电连接。Further, a grid is provided at the water inlet of the regulating pool, and a liquid level gauge, a pH meter and an agitator are provided in the regulating pool; a liquid level gauge is provided on the intermediate pool and the buffer pool; Both the position meter and the pH meter are electrically connected with the electric automatic control device.

进一步,所述pH调节装置包括酸加药箱和碱加药箱;所述混凝加药装置包括混凝剂加药箱和助凝剂加药箱,且所述酸加药箱、碱加药箱、混凝剂加药箱、助凝剂加药箱上均设有加药计量泵;所述加药计量泵与所述电气自控装置电连接。Further, the pH adjustment device includes an acid dosing box and an alkali dosing box; the coagulation dosing device includes a coagulant dosing box and a coagulant aid dosing box, and the acid dosing box, alkali dosing The medicine box, the coagulant dosing box, and the coagulant aid dosing box are all equipped with dosing metering pumps; the dosing metering pumps are electrically connected to the electrical automatic control device.

所述酸加药箱内填充有摩尔浓度为0.5mol/L的盐酸溶液,所述碱加药箱填充有摩尔浓度为0.5mol/L的氢氧化钠溶液。The acid dosing box is filled with a hydrochloric acid solution with a molar concentration of 0.5 mol/L, and the alkali dosing box is filled with a sodium hydroxide solution with a molar concentration of 0.5 mol/L.

进一步,所述混凝沉淀池包括相连通的搅拌池和沉淀池,所述搅拌池内设有搅拌器,所述混凝加药装置与所述搅拌池的进水口处相连,所述沉淀池上设有斜管。Further, the coagulation-sedimentation tank includes a connected stirring tank and a sedimentation tank, the stirring tank is provided with an agitator, the coagulation dosing device is connected to the water inlet of the stirring tank, and the settling tank is equipped with There are inclined tubes.

进一步,在所述臭氧发生器和中间水池之间的管道上设有水射器,且在所述管道的底端设有穿孔曝气管;所述中间水池内设有填料,所述填料包括质量百分数为97%-99%的填料主体和质量百分数为1%-3%的负载型氧化铜,所述填料主体为拉西环或鲍尔环中的任意一种,所述填料用于增加臭氧气体的停留时间。Further, a water ejector is provided on the pipeline between the ozone generator and the intermediate pool, and a perforated aeration tube is provided at the bottom end of the pipeline; fillers are provided in the intermediate pool, and the fillers include The mass percentage is 97%-99% of the filler body and the mass percentage is 1%-3% of supported copper oxide, the filler body is any one of Raschig ring or Pall ring, and the filler is used to increase residence time of ozone gas.

所述负载型氧化铜是一种金属催化剂,能够促使水中臭氧分解,产生具有极强氧化性的自由基,从而显著提高其对水中高稳定性有机物的分解效果。The supported copper oxide is a metal catalyst that can promote the decomposition of ozone in water to generate free radicals with strong oxidative properties, thereby significantly improving its decomposition effect on highly stable organic substances in water.

进一步,所述过滤泵与所述臭氧发生器的另一端相连通;所述过滤泵与所述电气自控装置电连接。Further, the filter pump is connected to the other end of the ozone generator; the filter pump is electrically connected to the electrical automatic control device.

进一步,所述石英砂过滤器与所述产水池之间设有反洗泵;所述反洗泵与所述电气自控装置电连接,所述反洗泵对石英砂过滤器和活性炭过滤器定期进行反洗,反洗后的水流回调节池。Further, a backwash pump is provided between the quartz sand filter and the water-producing pool; the backwash pump is electrically connected to the electrical automatic control device, and the backwash pump is regularly used for the quartz sand filter and the activated carbon filter. Backwashing is carried out, and the water after backwashing flows back to the regulating tank.

进一步,所述缓冲水池与所述超滤膜组件之间设有超滤泵,所述超滤膜组件与所述反渗透模块之间设有增压泵;所述超滤泵和增压泵均与所述电气自控装置电连接,所述超滤泵为超滤膜组件供水,所述增压泵为反渗透模块增压。Further, an ultrafiltration pump is provided between the buffer pool and the ultrafiltration membrane assembly, and a booster pump is provided between the ultrafiltration membrane assembly and the reverse osmosis module; the ultrafiltration pump and booster pump Both are electrically connected with the electric automatic control device, the ultrafiltration pump supplies water for the ultrafiltration membrane module, and the booster pump pressurizes the reverse osmosis module.

进一步,所述反渗透模块和电去离子模块之间以及电去离子模块与所述产水池之间均设有与所述电气自控装置电连接的流量计。Further, a flow meter electrically connected to the electric automatic control device is provided between the reverse osmosis module and the electrodeionization module and between the electrodeionization module and the produced water tank.

进一步,所述反渗透模块上连接有并联的电磁阀和调节阀;所述电磁阀和调节阀均与所述电气自控装置电连接;所述压滤机为板框压滤机。Further, the reverse osmosis module is connected with a parallel solenoid valve and a regulating valve; both the solenoid valve and the regulating valve are electrically connected to the electrical automatic control device; the filter press is a plate and frame filter press.

本发明利用上述实验室废水处理工艺设备处理实验室废水的处理方法,包括如下步骤:The present invention utilizes above-mentioned laboratory wastewater treatment process equipment to process the processing method of laboratory wastewater, comprising the following steps:

1)加药调质调量阶段:实验室废水进入调节池,利用pH调节装置进行水质均化处理,调节pH值为6-8,得均化后的废水;1) The phase of drug dosing, quality adjustment and volume adjustment: the laboratory wastewater enters the adjustment pool, and the pH adjustment device is used for water quality homogenization treatment, and the pH value is adjusted to 6-8 to obtain homogenized wastewater;

2)沉淀澄清阶段:均化后的废水进入混凝沉淀池,利用混凝加药装置对废水进行固液分离,固体沉淀在混凝沉淀池的底部,得上清液及污泥;2) Sedimentation and clarification stage: the homogenized wastewater enters the coagulation sedimentation tank, and the solid-liquid separation of the wastewater is carried out by the coagulation dosing device, and the solid is deposited at the bottom of the coagulation sedimentation tank to obtain supernatant and sludge;

3)高级氧化阶段:上清液溢流进入中间水池,上清液在中间水池内通过臭氧发生器对上清液进行曝气处理,得曝气处理后的上清液;3) Advanced oxidation stage: the supernatant overflows into the intermediate pool, and the supernatant is aerated by an ozone generator in the intermediate pool to obtain the aerated supernatant;

4)深度处理阶段:曝气处理后的上清液,经石英砂过滤器、活性炭过滤器、超滤膜组件、反渗透模块、电去离子模块进行深度处理后,有效去除水中的有机物和悬浮物,得最终清水,清水进入产水池;4) Advanced treatment stage: the supernatant after aeration treatment, after advanced treatment by quartz sand filter, activated carbon filter, ultrafiltration membrane module, reverse osmosis module and electrodeionization module, effectively removes organic matter and suspended The final clean water is obtained, and the clean water enters the water production tank;

5)污泥处理阶段:混凝沉淀池底部的污泥通过排泥管道排入污泥收集箱,加混凝剂和助凝剂后,通过螺杆泵排至压滤机进行脱水。5) Sludge treatment stage: The sludge at the bottom of the coagulation sedimentation tank is discharged into the sludge collection tank through the sludge discharge pipe, and after adding coagulant and coagulant aid, it is discharged to the filter press for dehydration through the screw pump.

所述步骤2)的混凝加药装置包括混凝剂加药箱和助凝剂加药箱,所述混凝剂加药箱内装有PAC,即聚合氯化铝,其投加量为10-100mg/L,所述助凝剂加药箱内填充有PAM,即聚丙烯酰胺,其投加量为1-5mg/L,当废水进入搅拌池的入水管道时,先投加混凝剂,然后当混有混凝剂的废水进入搅拌池后再向搅拌池内投加助凝剂。The coagulation dosing device in step 2) includes a coagulant dosing box and a coagulant aid dosing box, and the coagulant dosing box is equipped with PAC, that is, polyaluminum chloride, and its dosage is 10 -100mg/L, the coagulant aid dosing box is filled with PAM, that is, polyacrylamide, and its dosage is 1-5mg/L. When the wastewater enters the water inlet pipe of the mixing tank, the coagulant is first added , and then add coagulant to the mixing tank when the wastewater mixed with coagulant enters the mixing tank.

本发明具有的优点和积极效果是:由于采用上述技术方案,实验室废水利用本发明经加药调质调量阶段、沉淀澄清阶段、高级氧化阶段、深度过滤阶段、污泥处理阶段,能有效处理水中的悬浮物及有机物,由此经处理的实验室废水可回用,也可进行深度处理,获得高品质产水,实现实验室废水的再生利用;具有结构简单、适用范围广、操作简单等优点。The advantages and positive effects of the present invention are: due to the adoption of the above-mentioned technical scheme, the laboratory wastewater can be effectively treated by the present invention through the stages of drug-dosing conditioning, quality-adjusting, sedimentation and clarification, advanced oxidation, deep filtration, and sludge treatment. Suspended solids and organic matter in the water are treated, so that the treated laboratory wastewater can be reused, and advanced treatment can also be performed to obtain high-quality water and realize the recycling of laboratory wastewater; it has simple structure, wide application range, and simple operation Etc.

附图说明Description of drawings

图1是本发明的结构示意图;Fig. 1 is a structural representation of the present invention;

图2是图1的加药调质调量阶段、沉淀澄清阶段及高级氧化阶段的局部放大图;Fig. 2 is a partial enlarged view of the stage of dosing, quality and quantity adjustment, sedimentation and clarification stage and advanced oxidation stage of Fig. 1;

图3是本发明的深度处理阶段的局部放大图;Fig. 3 is a partial enlarged view of the deep processing stage of the present invention;

图4是本发明的污泥处理阶段的局部放大图。Fig. 4 is a partially enlarged view of the sludge treatment stage of the present invention.

图中:In the picture:

1、调节池              2、中间水池         3、电气自控装置1. Adjusting pool 2. Intermediate pool 3. Electric automatic control device

4、提升泵              5、臭氧发生器       6、过滤泵4. Lift pump 5. Ozone generator 6. Filter pump

7、石英砂过滤器        8、活性炭过滤器     9、缓冲水池7. Quartz sand filter 8. Activated carbon filter 9. Buffer pool

10、超滤膜组件         11、反渗透模块      12、电去离子模块10. Ultrafiltration membrane module 11. Reverse osmosis module 12. Electrodeionization module

13、产水池             14、污泥收集箱      15、螺杆泵13. Production pool 14. Sludge collection box 15. Screw pump

16、压滤机             17、格栅            18、液位计16. Filter press 17. Grille 18. Liquid level gauge

19、pH计               20、酸加药箱        21、碱加药箱19. pH meter 20. Acid dosing box 21. Alkali dosing box

22、混凝剂加药箱       23、助凝剂加药箱    24、加药计量泵22. Coagulant dosing box 23. Coagulant aid dosing box 24. Dosing metering pump

25、搅拌池             26、沉淀池          27、搅拌器25. Stirring tank 26. Sedimentation tank 27. Stirrer

28、斜管               29、水射器          30、穿孔曝气管28. Inclined pipe 29. Water injector 30. Perforated aeration pipe

31、反洗泵             32、超滤泵          33、增压泵31. Backwash pump 32. Ultrafiltration pump 33. Booster pump

34、流量计             35、电磁阀          36、调节阀34. Flow meter 35. Solenoid valve 36. Regulating valve

具体实施方式Detailed ways

如图1、2、3、4所示,本发明一种实验室废水处理工艺设备,包括调节池1、混凝沉淀池26、中间水池2、电气自控装置3;所述调节池1的上方通过加药管连通有pH调节装置;所述调节池1通过提升泵4与所述混凝沉淀池26相连,所述混凝沉淀池26的上方通过加药管连通有混凝加药装置;所述混凝沉淀池26的上端通过管道连接有中间水池2,所述中间水池2的上方通过管道连通有臭氧发生器5;所述中间水池2的另一端通过管道依次串连接有过滤泵6、石英砂过滤器7、活性炭过滤器8、缓冲水池9、超滤膜组件10、反渗透模块11、电去离子模块12、产水池13;所述混凝沉淀池26的底端通过排泥管连接有污泥收集箱14,所述污泥收集箱14通过螺杆泵15连接有压滤机16,所述污泥收集箱14的上端与调节池1的入水口相连;所述pH调节装置、提升泵4、混凝加药装置、臭氧发生器5、过滤泵6、螺杆泵15、压滤机16均与所述电气自控装置3电连接。As shown in Figures 1, 2, 3, and 4, a laboratory wastewater treatment process equipment of the present invention includes a regulating tank 1, a coagulation sedimentation tank 26, an intermediate pool 2, and an electrical automatic control device 3; A pH adjustment device is connected through a dosing pipe; the regulating tank 1 is connected to the coagulation-sedimentation tank 26 through a lift pump 4, and a coagulation dosing device is connected to the top of the coagulation-sedimentation tank 26 through a dosing pipe; The upper end of the coagulation sedimentation tank 26 is connected with an intermediate pool 2 through a pipeline, and the top of the intermediate pool 2 is connected with an ozone generator 5 through a pipeline; the other end of the intermediate pool 2 is sequentially connected with a filter pump 6 through a pipeline. , quartz sand filter 7, activated carbon filter 8, buffer tank 9, ultrafiltration membrane module 10, reverse osmosis module 11, electrodeionization module 12, water production tank 13; The bottom end of described coagulation sedimentation tank 26 passes mud The pipe is connected with a sludge collection box 14, and the sludge collection box 14 is connected with a filter press 16 through a screw pump 15, and the upper end of the sludge collection box 14 is connected with the water inlet of the adjustment tank 1; the pH adjustment device , lifting pump 4, coagulation dosing device, ozone generator 5, filter pump 6, screw pump 15, filter press 16 are all electrically connected with the electric automatic control device 3.

所述臭氧发生器5用于降解污水中的有机物。The ozone generator 5 is used to degrade organic matter in sewage.

优选的,所述调节池1的入水口处设有格栅17,且所述调节池1内设有液位计18、pH计19以及搅拌器27;所述中间水池2、缓冲水池9上均设有液位计18;所述液位计18、pH计19均与所述电气自控装置3电连接。Preferably, the water inlet of the regulating pool 1 is provided with a grille 17, and the regulating pool 1 is provided with a liquid level gauge 18, a pH meter 19 and an agitator 27; Both are equipped with a liquid level gauge 18; the liquid level gauge 18 and the pH gauge 19 are both electrically connected to the electrical automatic control device 3 .

优选的,所述pH调节装置包括酸加药箱20和碱加药箱21;所述混凝加药装置包括混凝剂加药箱22和助凝剂加药箱23,且所述酸加药箱20、碱加药箱21、混凝剂加药箱22、助凝剂加药箱23上均设有加药计量泵24;所述加药计量泵24与所述电气自控装置3电连接。Preferably, the pH adjustment device includes an acid dosing box 20 and an alkali dosing box 21; the coagulation dosing device includes a coagulant dosing box 22 and a coagulant aid dosing box 23, and the acid dosing Medicine box 20, alkali dosing box 21, coagulant dosing box 22, coagulant aid dosing box 23 are all provided with dosing metering pump 24; connect.

优选的,所述混凝沉淀池26包括相连通的搅拌池25和沉淀池26,所述搅拌池25内设有搅拌器27,所述混凝加药装置与所述搅拌池25的进水口处相连,所述沉淀池26上设有斜管28。Preferably, the coagulation sedimentation tank 26 includes a connected stirring tank 25 and a sedimentation tank 26, the stirring tank 25 is provided with an agitator 27, the coagulation dosing device and the water inlet of the stirring tank 25 connected to each other, and the settling tank 26 is provided with an inclined pipe 28 .

优选的,在所述臭氧发生器5和中间水池2之间的管道上设有水射器29,且在所述管道的底端设有穿孔曝气管30;所述中间水池2内设有填料,所述填料包括质量百分数为97%-99%的填料主体和质量百分数为1%-3%的负载型氧化铜,所述填料主体为拉西环或鲍尔环中的任意一种,所述填料用于增加臭氧气体的停留时间。Preferably, a water ejector 29 is provided on the pipeline between the ozone generator 5 and the intermediate pool 2, and a perforated aeration tube 30 is provided at the bottom end of the pipeline; Filler, the filler includes a mass percentage of 97%-99% filler body and a mass percentage of 1%-3% supported copper oxide, the filler body is any one of Raschig rings or Pall rings, The filler is used to increase the residence time of ozone gas.

优选的,所述过滤泵6与所述臭氧发生器5的另一端相连通;所述过滤泵6与所述电气自控装置3电连接。Preferably, the filter pump 6 communicates with the other end of the ozone generator 5 ; the filter pump 6 is electrically connected with the electrical automatic control device 3 .

优选的,所述石英砂过滤器7与所述产水池13之间设有反洗泵31;所述反洗泵31与所述电气自控装置3电连接,所述反洗泵31对石英砂过滤器7和活性炭过滤器8定期进行反洗,反洗后的水流回调节池1。Preferably, a backwash pump 31 is provided between the quartz sand filter 7 and the water production pool 13; The filter 7 and the active carbon filter 8 are regularly backwashed, and the backwashed water flows back to the regulating tank 1 .

优选的,所述缓冲水池9与所述超滤膜组件10之间设有超滤泵32,所述超滤膜组件10与所述反渗透模块11之间设有增压泵33;所述超滤泵32和增压泵33均与所述电气自控装置3电连接,所述超滤泵32为超滤膜组件10供水,所述增压泵33为反渗透模块11增压。Preferably, an ultrafiltration pump 32 is provided between the buffer pool 9 and the ultrafiltration membrane assembly 10, and a booster pump 33 is provided between the ultrafiltration membrane assembly 10 and the reverse osmosis module 11; Both the ultrafiltration pump 32 and the booster pump 33 are electrically connected to the electrical automatic control device 3 , the ultrafiltration pump 32 supplies water to the ultrafiltration membrane module 10 , and the booster pump 33 boosts the reverse osmosis module 11 .

优选的,所述反渗透模块11和电去离子模块12之间以及电去离子模块12与所述产水池13之间均设有与所述电气自控装置3电连接的流量计34。Preferably, a flow meter 34 electrically connected to the electrical automatic control device 3 is provided between the reverse osmosis module 11 and the electrodeionization module 12 and between the electrodeionization module 12 and the produced water tank 13 .

优选的,所述反渗透模块11上连接有并联的电磁阀35和调节阀36;所述电磁阀35和调节阀36均与所述电气自控装置3电连接;通过电气自控装置3控制电磁阀35的开启时间,可以调整反渗透模块11的冲洗时间,也可以通过电气自控装置3控制调节阀36调节反渗透模块11的浓水流量,同时电磁阀35或调节阀36还可控制电去离子模块12产水时间,避免产水过多或过少,保证了产水效果,节省了电能,所述压滤机16为板框压滤机16。Preferably, the reverse osmosis module 11 is connected with a parallel solenoid valve 35 and a regulating valve 36; the solenoid valve 35 and the regulating valve 36 are electrically connected with the electric automatic control device 3; the solenoid valve is controlled by the electric automatic control device 3 35, the flushing time of the reverse osmosis module 11 can be adjusted, and the concentrated water flow of the reverse osmosis module 11 can also be adjusted by controlling the regulating valve 36 through the electrical automatic control device 3. At the same time, the solenoid valve 35 or the regulating valve 36 can also control the electrodeionization The water production time of the module 12 avoids too much or too little water production, ensures the water production effect, and saves electric energy. The filter press 16 is a plate and frame filter press 16 .

下面结合上述实验室废水处理工艺设备对本发明的处理实验室废水的处理方法,进行具体说明:Below in conjunction with above-mentioned laboratory wastewater treatment process equipment to the processing method of processing laboratory wastewater of the present invention, be specifically described:

实施例1Example 1

根据上述工艺设备,当中间水池内的所述填料为质量百分数为97%的填料主体和质量百分数为3%的负载型氧化铜,且所述填料主体为拉西环时。According to the above process equipment, when the filler in the intermediate pool is 97% by mass of filler body and 3% by mass of supported copper oxide, and the filler body is Raschig rings.

1)加药调质调量阶段:实验室废水通过格栅17进入调节池1后,利用酸加药箱20和碱加药箱21进行水质均化处理,调节pH值为6,得均化后的废水;1) The stage of chemical dosing, conditioning, quality and volume adjustment: after the laboratory wastewater enters the regulating pool 1 through the grid 17, the acid dosing box 20 and the alkali dosing box 21 are used to homogenize the water quality, and the pH value is adjusted to 6 to obtain homogenization after waste water;

2)沉淀澄清阶段:均化后的废水通过提升泵4进入搅拌池25,先在搅拌池25的入水口的管道处投加混凝剂,投加量为12mg/L,然后在搅拌池25内投加助凝剂,助凝剂的投加量为1mg/L,经过加药处理的废水溢流进入沉淀池26进行固液分离,固体沉淀在沉淀池26的底部,得上清液及污泥;2) Sedimentation and clarification stage: the homogenized waste water enters the stirring tank 25 through the lifting pump 4, and first adds a coagulant to the pipeline of the water inlet of the stirring tank 25, and the dosage is 12mg/L, and then in the stirring tank 25 Dosing coagulant in the interior, the dosage of coagulant is 1mg/L, the waste water overflowed into sedimentation tank 26 to carry out solid-liquid separation through the dosing treatment, solid precipitates in the bottom of sedimentation tank 26, obtains supernatant and sludge;

3)高级氧化阶段:上清液溢流进入中间水池2,上清液在中间水池2内通过臭氧发生器5对上清液进行曝气处理,得曝气处理后的上清液;3) Advanced oxidation stage: the supernatant overflows into the intermediate pool 2, and the supernatant is aerated by the ozone generator 5 in the intermediate pool 2 to obtain the aerated supernatant;

4)深度处理阶段:曝气处理后的上清液,经石英砂过滤器7、活性炭过滤器8、超滤膜组件10、反渗透模块11、电去离子模块12进行深度处理后,得最终清水,清水进入产水池13;4) Advanced treatment stage: the supernatant after the aeration treatment is subjected to advanced treatment through the quartz sand filter 7, the activated carbon filter 8, the ultrafiltration membrane module 10, the reverse osmosis module 11, and the electrodeionization module 12 to obtain the final Clear water, clear water enters the water production pool 13;

5)污泥处理阶段:沉淀池26底部的污泥通过排泥管道排入污泥收集箱14,加混凝剂和助凝剂后,通过螺杆泵15排至压滤机16进行脱水。5) Sludge treatment stage: The sludge at the bottom of the sedimentation tank 26 is discharged into the sludge collection tank 14 through the sludge discharge pipe, and after adding coagulant and coagulant aid, it is discharged to the filter press 16 through the screw pump 15 for dehydration.

实施例2Example 2

根据上述工艺设备,当中间水池内的所述填料为质量百分数为98%的填料主体和质量百分数为2%的负载型氧化铜,且所述填料主体为鲍尔环时。According to the above-mentioned process equipment, when the filler in the intermediate pool is a filler body with a mass percentage of 98% and a supported copper oxide with a mass percentage of 2%, and the filler body is a Pall ring.

1)加药调质调量阶段:实验室废水通过格栅17进入调节池1后,利用酸加药箱20和碱加药箱21进行水质均化处理,调节pH值为7,得均化后的废水;1) The stage of chemical dosing, conditioning, quality and volume adjustment: after the laboratory wastewater enters the regulating pool 1 through the grid 17, the acid dosing box 20 and the alkali dosing box 21 are used to homogenize the water quality, and the pH value is adjusted to 7 to obtain homogenization after waste water;

2)沉淀澄清阶段:均化后的废水通过提升泵4进入搅拌池25,先在搅拌池25的入水口的管道处投加混凝剂,投加量为60mg/L,然后在搅拌池25内投加助凝剂,助凝剂的投加量为4mg/L,经过加药处理的废水溢流进入沉淀池26进行固液分离,固体沉淀在沉淀池26的底部,得上清液及污泥;2) Sedimentation and clarification stage: the homogenized wastewater enters the stirring tank 25 through the lift pump 4, and first adds a coagulant to the pipeline of the water inlet of the stirring tank 25, and the dosage is 60mg/L, and then in the stirring tank 25 Dosing coagulant, the dosage of coagulant is 4mg/L, the waste water overflowed into sedimentation tank 26 to carry out solid-liquid separation through the dosing treatment, solid precipitates in the bottom of sedimentation tank 26, obtains supernatant and sludge;

3)高级氧化阶段:上清液溢流进入中间水池2,上清液在中间水池2内通过臭氧发生器5对上清液进行曝气处理,得曝气处理后的上清液;3) Advanced oxidation stage: the supernatant overflows into the intermediate pool 2, and the supernatant is aerated by the ozone generator 5 in the intermediate pool 2 to obtain the aerated supernatant;

4)深度处理阶段:曝气处理后的上清液,经石英砂过滤器7、活性炭过滤器8、超滤膜组件10、反渗透模块11、电去离子模块12进行深度处理后,得最终清水,清水进入产水池13;4) Advanced treatment stage: the supernatant after the aeration treatment is subjected to advanced treatment through the quartz sand filter 7, the activated carbon filter 8, the ultrafiltration membrane module 10, the reverse osmosis module 11, and the electrodeionization module 12 to obtain the final Clear water, clear water enters the water production pool 13;

5)污泥处理阶段:沉淀池26底部的污泥通过排泥管道排入污泥收集箱14,加混凝剂和助凝剂后,通过螺杆泵15排至压滤机16进行脱水。5) Sludge treatment stage: The sludge at the bottom of the sedimentation tank 26 is discharged into the sludge collection tank 14 through the sludge discharge pipe, and after adding coagulant and coagulant aid, it is discharged to the filter press 16 through the screw pump 15 for dehydration.

实施例3Example 3

根据上述工艺设备,当中间水池内的所述填料为质量百分数为99%的填料主体和质量百分数为1%的负载型氧化铜,且所述填料主体为拉西环时。According to the above process equipment, when the filler in the intermediate pool is 99% by mass of filler body and 1% by mass of supported copper oxide, and the filler body is Raschig rings.

1)加药调质调量阶段:实验室废水通过格栅17进入调节池1后,利用酸加药箱20和碱加药箱21进行水质均化处理,调节pH值为8,得均化后的废水;1) The stage of chemical dosing, conditioning, quality and volume adjustment: after the laboratory wastewater enters the regulating pool 1 through the grid 17, the acid dosing box 20 and the alkali dosing box 21 are used to homogenize the water quality, and the pH value is adjusted to 8 to obtain homogenization after waste water;

2)沉淀澄清阶段:均化后的废水通过提升泵4进入搅拌池25,先在搅拌池25的入水口的管道处投加混凝剂,投加量为90mg/L,然后在搅拌池25内投加助凝剂,助凝剂的投加量为3mg/L,经过加药处理的废水溢流进入沉淀池26进行固液分离,固体沉淀在沉淀池26的底部,得上清液及污泥;2) Sedimentation and clarification stage: the homogenized waste water enters the stirring tank 25 through the lifting pump 4, and first adds a coagulant to the pipeline of the water inlet of the stirring tank 25, and the dosage is 90mg/L, and then in the stirring tank 25 Dosing coagulant in the interior, the dosage of coagulant is 3mg/L, the waste water overflowed into the settling tank 26 to carry out solid-liquid separation through the dosing treatment, the solid precipitates in the bottom of the settling tank 26, obtains the supernatant and sludge;

3)高级氧化阶段:上清液溢流进入中间水池2,上清液在中间水池2内通过臭氧发生器5对上清液进行曝气处理,得曝气处理后的上清液;3) Advanced oxidation stage: the supernatant overflows into the intermediate pool 2, and the supernatant is aerated by the ozone generator 5 in the intermediate pool 2 to obtain the aerated supernatant;

4)深度处理阶段:曝气处理后的上清液,经石英砂过滤器7、活性炭过滤器8、超滤膜组件10、反渗透模块11、电去离子模块12进行深度处理后,得最终清水,清水进入产水池13;4) Advanced treatment stage: the supernatant after the aeration treatment is subjected to advanced treatment through the quartz sand filter 7, the activated carbon filter 8, the ultrafiltration membrane module 10, the reverse osmosis module 11, and the electrodeionization module 12 to obtain the final Clear water, clear water enters the water production pool 13;

5)污泥处理阶段:沉淀池26底部的污泥通过排泥管道排入污泥收集箱14,加混凝剂和助凝剂后,通过螺杆泵15排至压滤机16进行脱水。5) Sludge treatment stage: The sludge at the bottom of the sedimentation tank 26 is discharged into the sludge collection tank 14 through the sludge discharge pipe, and after adding coagulant and coagulant aid, it is discharged to the filter press 16 through the screw pump 15 for dehydration.

以上对本发明的一个实施例进行了详细说明,但所述内容仅为本发明的较佳实施例,不能被认为用于限定本发明的实施范围。凡依本发明申请范围所作的均等变化与改进等,均应仍归属于本发明的专利涵盖范围之内。An embodiment of the present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.

Claims (10)

1. a Laboratory Waste Water Treatment processing unit is characterized in that: comprise equalizing tank, coagulative precipitation tank, intermediate pool, quartz sand filtration device, activated charcoal filter, buffering pond, hyperfiltration membrane assembly, reverse osmosis module, electrodeionization module, produce pond, electric autocontrol device; The top of described equalizing tank is communicated with the pH regulator device by chemical feed pipe; Described equalizing tank links to each other with described coagulative precipitation tank by lift pump, and the top of described coagulative precipitation tank is communicated with the coagulation dosing device by chemical feed pipe; There is intermediate pool the upper end of described coagulative precipitation tank by pipe connection, and the top of described intermediate pool is communicated with ozonizer by pipeline; The other end of described intermediate pool is serially connected with filtration pump, quartz sand filtration device, activated charcoal filter, buffering pond, hyperfiltration membrane assembly, reverse osmosis module, electrodeionization module successively, produces the pond by pipeline; The bottom of described coagulative precipitation tank is connected with the mud collection box by shore pipe, and described mud collection box is connected with pressure filter by spiral pump, and the upper end of described mud collection box links to each other with the water inlet of equalizing tank; Described pH regulator device, lift pump, coagulation dosing device, ozonizer, filtration pump, spiral pump, pressure filter all are electrically connected with described electric autocontrol device.
2. Laboratory Waste Water Treatment processing unit according to claim 1, it is characterized in that: the water inlet place of described equalizing tank is provided with grid, and be provided with liquidometer in the described equalizing tank, pH meter and agitator; Described intermediate pool, buffering are equipped with liquidometer on the pond; Described liquidometer, pH meter all are electrically connected with described electric autocontrol device.
3. Laboratory Waste Water Treatment processing unit according to claim 1, it is characterized in that: described pH regulator device comprises sour dosing tank and alkali dosing tank; Described coagulation dosing device comprises coagulating agent dosing tank and coagulant aids dosing tank, and is equipped with the dosing volume pump on the described sour dosing tank, alkali dosing tank, coagulating agent dosing tank, coagulant aids dosing tank; Described dosing volume pump is electrically connected with described electric autocontrol device.
4. Laboratory Waste Water Treatment processing unit according to claim 1, it is characterized in that: described coagulative precipitation tank comprises agitated pool and the settling tank that is connected, be provided with agitator in the described agitated pool, described coagulation dosing device links to each other with the water inlet of described agitated pool, and described settling tank is provided with inclined tube.
5. Laboratory Waste Water Treatment processing unit according to claim 1, it is characterized in that: the pipeline between described ozonizer and intermediate pool is provided with water sprayer, and is provided with boring aeration pipe in the bottom of described pipeline; Be provided with filler in the described intermediate pool, described filler comprises that mass percent is the filler body of 97%-99% and the loading type cupric oxide that mass percent is 1%-3%, and described filler body is any one in Raschig ring or the Pall ring.
6. Laboratory Waste Water Treatment processing unit according to claim 1, it is characterized in that: described filtration pump is connected with the other end of described ozonizer; Described filtration pump is electrically connected with described electric autocontrol device.
7. Laboratory Waste Water Treatment processing unit according to claim 1 is characterized in that: be provided with backwashing pump between described quartz sand filtration device and the described product pond; Described backwashing pump is electrically connected with described electric autocontrol device.
8. Laboratory Waste Water Treatment processing unit according to claim 1 is characterized in that: be provided with ultrafiltrate pump between described buffering pond and the described hyperfiltration membrane assembly, be provided with topping-up pump between described hyperfiltration membrane assembly and the described reverse osmosis module; Described ultrafiltrate pump and topping-up pump all are electrically connected with described electric autocontrol device.
9. Laboratory Waste Water Treatment processing unit according to claim 1 is characterized in that: be equipped with the under meter that is electrically connected with described electric autocontrol device between between described reverse osmosis module and the electrodeionization module and electrodeionization module and the described product pond; Be connected with magnetic valve and variable valve in parallel on the described reverse osmosis module; Described magnetic valve and variable valve all are electrically connected with described electric autocontrol device; Described pressure filter is plate-and-frame filter press.
10. a laboratory waste water treatment method that utilizes each described Laboratory Waste Water Treatment processing unit of claim 1-9 is characterized in that: by comprising the steps:
1) the modified accent amount stage of dosing: laboratory waste water enters equalizing tank, utilizes the pH regulator device to carry out the water quality homogenizing and handles, and regulating the pH value is 6-8, gets the waste water after the homogenizing;
2) the precipitation clarification stage: the waste water after the homogenizing enters coagulative precipitation tank, utilizes the coagulation dosing device that waste water is carried out solid-liquid separation, and solid precipitation gets supernatant liquor and mud in the bottom of coagulative precipitation tank;
3) the advanced oxidation stage: the supernatant liquor overflow enters intermediate pool, and supernatant liquor carries out aeration by ozonizer to supernatant liquor in intermediate pool handles, and gets the supernatant liquor after aeration is handled;
4) the advanced treatment stage: the supernatant liquor after aeration is handled, after quartz sand filtration device, activated charcoal filter, hyperfiltration membrane assembly, reverse osmosis module, electrodeionization module are carried out advanced treatment, get final clear water, clear water enters and produces the pond;
5) the sludge treatment stage: the mud of coagulative precipitation tank bottom enters the mud collection box by the spoil disposal pipeline, add coagulating agent and coagulant aids after, drain into pressure filter by spiral pump and dewater.
CN201310286286XA 2013-07-09 2013-07-09 Laboratory wastewater treatment process equipment and wastewater treatment method using same Pending CN103304078A (en)

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CN110467322A (en) * 2019-09-20 2019-11-19 扬州大学 Laboratory high concentration comprehensive wastewater handles all-in-one machine
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CN103739149A (en) * 2013-11-15 2014-04-23 安徽省绿巨人环境技术有限公司 Laboratory wastewater treatment technology
CN103922537A (en) * 2014-04-04 2014-07-16 西安西热水务环保有限公司 System for recycling wastewater from circulating cooling water by adopting membrane process
CN103922537B (en) * 2014-04-04 2015-07-15 西安西热水务环保有限公司 System for recycling wastewater from circulating cooling water by adopting membrane process
CN104609599A (en) * 2015-01-04 2015-05-13 上海福盼环保节能科技有限公司 Advanced up-to-standard recycling device for RO (reverse osmosis) concentrated water
CN104909503A (en) * 2015-06-12 2015-09-16 南开大学 Seawater desalination method for integrated membrane process
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CN108383267A (en) * 2018-01-30 2018-08-10 苏州农业职业技术学院 A kind of laboratory waste water purifying treatment method
CN110713282A (en) * 2018-07-13 2020-01-21 中国石油化工股份有限公司 Laboratory organic waste liquid treatment method and system
CN110713282B (en) * 2018-07-13 2023-10-24 中国石油化工股份有限公司 Laboratory organic waste liquid treatment method and system
CN109368853A (en) * 2018-11-06 2019-02-22 广州市德百顺电气科技有限公司 A kind of adaptive sewage treatment system and sewage treatment method
CN109534608A (en) * 2018-12-21 2019-03-29 泽州县和美环保科技有限公司 A kind of domestic sewage processing system and processing method
CN109607882A (en) * 2019-01-29 2019-04-12 科盛环保科技股份有限公司 A kind of waste water treatment system
CN111892192A (en) * 2019-05-05 2020-11-06 中国科学院过程工程研究所 A reduction treatment method of laboratory inorganic waste liquid based on membrane separation
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Application publication date: 20130918