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 PDFInfo
- Publication number
- 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
- Authority
- CN
- China
- Prior art keywords
- tank
- pump
- dosing
- waste water
- intermediate pool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000002351 wastewater Substances 0.000 claims abstract description 43
- 239000010802 sludge Substances 0.000 claims abstract description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000005345 coagulation Methods 0.000 claims abstract description 28
- 230000015271 coagulation Effects 0.000 claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims abstract description 26
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 24
- 239000012528 membrane Substances 0.000 claims abstract description 19
- 238000009296 electrodeionization Methods 0.000 claims abstract description 18
- 239000006004 Quartz sand Substances 0.000 claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000701 coagulant Substances 0.000 claims description 40
- 239000006228 supernatant Substances 0.000 claims description 26
- 239000000945 filler Substances 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 13
- 238000005273 aeration Methods 0.000 claims description 12
- 239000003513 alkali Substances 0.000 claims description 12
- 238000001556 precipitation Methods 0.000 claims description 12
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 238000005352 clarification Methods 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 238000011001 backwashing Methods 0.000 claims description 4
- 230000001112 coagulating effect Effects 0.000 claims 9
- 230000003139 buffering effect Effects 0.000 claims 4
- 238000009287 sand filtration Methods 0.000 claims 4
- 239000000047 product Substances 0.000 claims 2
- 229960004643 cupric oxide Drugs 0.000 claims 1
- 238000004062 sedimentation Methods 0.000 abstract description 38
- 238000000108 ultra-filtration Methods 0.000 abstract description 21
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 17
- 239000002253 acid Substances 0.000 description 11
- 238000010979 pH adjustment Methods 0.000 description 7
- 239000005751 Copper oxide Substances 0.000 description 6
- 229910000431 copper oxide Inorganic materials 0.000 description 6
- 239000005416 organic matter Substances 0.000 description 6
- 230000003750 conditioning effect Effects 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- -1 that is Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
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。
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.
Description
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
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.
10、超滤膜组件 11、反渗透模块 12、电去离子模块10.
13、产水池 14、污泥收集箱 15、螺杆泵13.
16、压滤机 17、格栅 18、液位计16.
19、pH计 20、酸加药箱 21、碱加药箱19.
22、混凝剂加药箱 23、助凝剂加药箱 24、加药计量泵22.
25、搅拌池 26、沉淀池 27、搅拌器25.
28、斜管 29、水射器 30、穿孔曝气管28.
31、反洗泵 32、超滤泵 33、增压泵31.
34、流量计 35、电磁阀 36、调节阀34.
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310286286XA CN103304078A (en) | 2013-07-09 | 2013-07-09 | Laboratory wastewater treatment process equipment and wastewater treatment method using same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310286286XA CN103304078A (en) | 2013-07-09 | 2013-07-09 | Laboratory wastewater treatment process equipment and wastewater treatment method using same |
Publications (1)
Publication Number | Publication Date |
---|---|
CN103304078A true CN103304078A (en) | 2013-09-18 |
Family
ID=49129843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310286286XA Pending CN103304078A (en) | 2013-07-09 | 2013-07-09 | Laboratory wastewater treatment process equipment and wastewater treatment method using same |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103304078A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
CN105731721A (en) * | 2016-01-22 | 2016-07-06 | 南通海陵环境检测有限公司 | Method for treating wastewater generated in mechanical processing |
CN106007063A (en) * | 2016-06-21 | 2016-10-12 | 杨猛 | Wastewater treatment device for laboratory |
CN107628727A (en) * | 2017-10-10 | 2018-01-26 | 东华工程科技股份有限公司 | A kind of system and group technology of advanced treating coal chemical industrial waste water persistent organic pollutants |
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 |
CN108558087A (en) * | 2018-01-25 | 2018-09-21 | 嘉兴市欣欣仪器设备有限公司 | Laboratory experiment waste water integral intelligent processing 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 |
CN110467322A (en) * | 2019-09-20 | 2019-11-19 | 扬州大学 | Laboratory high concentration comprehensive wastewater handles all-in-one machine |
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 |
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 |
CN115818901A (en) * | 2023-01-06 | 2023-03-21 | 中国电建集团北京勘测设计研究院有限公司 | Underground cavern production wastewater treatment system and method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101041536A (en) * | 2007-04-30 | 2007-09-26 | 李保标 | Integrated waste water treating machine |
CN201077792Y (en) * | 2007-05-22 | 2008-06-25 | 华南理工大学 | Ozone heterogenous catalysis oxygenize water treating device |
CN201801439U (en) * | 2010-05-27 | 2011-04-20 | 范维林 | Laboratory wastewater treatment device |
CN102936069A (en) * | 2012-12-04 | 2013-02-20 | 天津中天海盛环保科技有限公司 | Ultrawater purifier for lab |
-
2013
- 2013-07-09 CN CN201310286286XA patent/CN103304078A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101041536A (en) * | 2007-04-30 | 2007-09-26 | 李保标 | Integrated waste water treating machine |
CN201077792Y (en) * | 2007-05-22 | 2008-06-25 | 华南理工大学 | Ozone heterogenous catalysis oxygenize water treating device |
CN201801439U (en) * | 2010-05-27 | 2011-04-20 | 范维林 | Laboratory wastewater treatment device |
CN102936069A (en) * | 2012-12-04 | 2013-02-20 | 天津中天海盛环保科技有限公司 | Ultrawater purifier for lab |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN105731721A (en) * | 2016-01-22 | 2016-07-06 | 南通海陵环境检测有限公司 | Method for treating wastewater generated in mechanical processing |
CN106007063A (en) * | 2016-06-21 | 2016-10-12 | 杨猛 | Wastewater treatment device for laboratory |
CN107628727A (en) * | 2017-10-10 | 2018-01-26 | 东华工程科技股份有限公司 | A kind of system and group technology of advanced treating coal chemical industrial waste water persistent organic pollutants |
CN108558087A (en) * | 2018-01-25 | 2018-09-21 | 嘉兴市欣欣仪器设备有限公司 | Laboratory experiment waste water integral intelligent processing system |
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 |
CN110467322A (en) * | 2019-09-20 | 2019-11-19 | 扬州大学 | Laboratory high concentration comprehensive wastewater handles all-in-one machine |
CN115818901A (en) * | 2023-01-06 | 2023-03-21 | 中国电建集团北京勘测设计研究院有限公司 | Underground cavern production wastewater treatment system and method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103304078A (en) | Laboratory wastewater treatment process equipment and wastewater treatment method using same | |
CN102701495A (en) | Treatment device and treatment method for organic wastewater difficult to degrade | |
CN104529017B (en) | A kind for the treatment of method and apparatus electroplating mixing water | |
CN103172219A (en) | Novel TAIC production wastewater treatment process and treatment system | |
CN104445812A (en) | Treatment method of waste liquor obtained after alcohol mother liquor purifying in doxycycline hydrochloride production | |
CN106517608A (en) | Pretreatment method of high-concentration organophosphorus wastewater | |
KR20100036124A (en) | Eco bio reactive system for water quality purification | |
CN108862848A (en) | The treatment process and processing system of pharmacy waste water | |
JP5143002B2 (en) | Wastewater reuse method | |
CN203373221U (en) | Laboratory wastewater treatment process equipment | |
CN107500442B (en) | An integrated treatment method and device for slightly polluted water source water | |
CN203768178U (en) | A circuit board production ink wastewater treatment system | |
CN103880204A (en) | Method for removing nickel ions from electroplating sewage | |
CN104944640B (en) | A kind of processing unit and method of shale gas fracturing waste water | |
CN203360192U (en) | Treatment device for difficultly degradable industrial wastewater | |
CN105110525A (en) | System for treating artificial flower dyeing wastewater and treatment method thereof | |
CN205313294U (en) | But continuous operation's cooling circulating water treatment system | |
JP6662558B2 (en) | Water treatment method and water treatment device | |
CN101323489A (en) | Sea water advanced pretreatment apparatus | |
CN206188575U (en) | Wastewater treatment system | |
CN104355451A (en) | Process for recycling biochemical effluent of landfill leachate | |
CN205258241U (en) | Printing and dyeing wastewater treatment system | |
CN103951117B (en) | A kind of processing meanss of removable slaughtering wastewater middle and high concentration ammonia nitrogen | |
CN215559437U (en) | a waste water treatment system | |
CN215161879U (en) | Shale gas produced water treatment facility |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C12 | Rejection of a patent application after its publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130918 |