CN205999060U - A kind of difficult biochemistry organic wastewater pretreatment unit - Google Patents
A kind of difficult biochemistry organic wastewater pretreatment unit Download PDFInfo
- Publication number
- CN205999060U CN205999060U CN201620635342.5U CN201620635342U CN205999060U CN 205999060 U CN205999060 U CN 205999060U CN 201620635342 U CN201620635342 U CN 201620635342U CN 205999060 U CN205999060 U CN 205999060U
- Authority
- CN
- China
- Prior art keywords
- water
- diameter
- organic wastewater
- throat
- water inlet
- 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.)
- Expired - Fee Related
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims 1
- 239000010815 organic waste Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 239000002352 surface water Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Landscapes
- Physical Water Treatments (AREA)
Abstract
本实用新型涉及一种难生化有机废水预处理装置。难生化有机废水预处理装置包括进水水箱（1）、加压泵（12）、水管（13）、旋流加速器（2）、水力空化器（3）、储水箱（4）。进水水箱（1）设有桨式搅拌器（11），水管（13）上设有加压泵（12），旋流加速器（2）由进水口（21）、筒体（22）、锥体（23）、出水口（24）组成，水力空化器（3）由渐缩管（31）、喉管（32）、渐扩管（33）组成，喉管（32）内部设有多孔板（321）。本实用新型提供了一种结构简单，经济适用，有效提高难生化有机废水可生化性能的废水预处理装置。
The utility model relates to a pretreatment device for biochemically difficult organic waste water. The pretreatment device for biochemically difficult organic wastewater includes an inlet water tank (1), a booster pump (12), a water pipe (13), a cyclone accelerator (2), a hydraulic cavitator (3), and a water storage tank (4). The water inlet tank (1) is provided with a paddle agitator (11), the water pipe (13) is provided with a booster pump (12), and the cyclone accelerator (2) consists of a water inlet (21), a cylinder (22), a cone Body (23), water outlet (24), hydraulic cavitator (3) is composed of reducer (31), throat (32), expander (33), throat (32) is equipped with porous board (321). The utility model provides a waste water pretreatment device which is simple in structure, economical and applicable, and can effectively improve the biochemical performance of difficult-to-biochemical organic waste water.
Description
技术领域technical field
本实用新型属于环境保护技术领域，属废水处理领域，尤其涉及一种难生化有机废水预处理装置。The utility model belongs to the technical field of environmental protection and the field of waste water treatment, in particular to a pretreatment device for biochemically difficult organic waste water.
背景技术Background technique
在工业企业及居民生活污水的持续排放和地表水水体自净能力的衰减的共同作用下，我国地表水水质安全面临巨大的压力与挑战，地表水中的有机物含量的升高、营养元素的积累及水体自净能力的降低导致我国地表水水体富营养化程度的加剧，甚至导致“水华现象”的发生，严重威胁地表水安全。难生化有机废水是难处理工业废水之一，典型的难生化有机废水有纺织/印染废水、造纸废水、制药废水、石化废水、食品废水、焦化废水等，这些废水通常具有高COD、低BOD的特点，由于其可生化性差，一般需要通过一些预处理技术提高BOD与COD的比值，提高废水可生化性能，实现废水的后续生化处理，降低废水处理成本。目前难生化有机废水的预处理方法主要有化学方法和物理方法，化学法一般需要大量的化学试剂的消耗，不仅成本高、而且易于造成二次污染和对后续生物处理过程中微生物的毒害，目前常用的物理方法有萃取法、吸附法、浓缩法和超声波法，萃取法容易因有机溶剂的挥发和泄露而造成二次污染；而吸附法因吸附剂再生困难而造成吸附剂的大量消耗、处理成本较高；浓缩法一般用于高盐分难生化有机废水的处理，能耗特别高，大范围推广应用困难；超声波法具有处理效果好，无二次污染的优点，但是由于其能耗较高，不适于大水量的处理。Under the joint action of the continuous discharge of domestic sewage from industrial enterprises and residents and the attenuation of the self-purification ability of surface water, the safety of surface water in my country is facing enormous pressure and challenges. The reduction of self-purification ability has led to the aggravation of the eutrophication of my country's surface water bodies, and even led to the occurrence of "algae bloom", which seriously threatens the safety of surface water. Biochemically difficult organic wastewater is one of the difficult-to-treat industrial wastewater. Typical biochemically difficult organic wastewater includes textile/printing and dyeing wastewater, papermaking wastewater, pharmaceutical wastewater, petrochemical wastewater, food wastewater, coking wastewater, etc. These wastewaters usually have high COD and low BOD. Due to its poor biodegradability, it is generally necessary to increase the ratio of BOD to COD through some pretreatment techniques, improve the biochemical properties of wastewater, realize the subsequent biochemical treatment of wastewater, and reduce the cost of wastewater treatment. At present, the pretreatment methods of biochemically difficult organic wastewater mainly include chemical methods and physical methods. Chemical methods generally require a large amount of chemical reagent consumption, which is not only costly, but also easy to cause secondary pollution and poisonous microorganisms in the subsequent biological treatment process. At present, The commonly used physical methods are extraction, adsorption, concentration and ultrasonic method. The extraction method is easy to cause secondary pollution due to the volatilization and leakage of organic solvents; while the adsorption method causes a large amount of consumption and disposal of the adsorbent due to the difficulty in regeneration of the adsorbent. The cost is high; the concentration method is generally used for the treatment of high-salt and difficult-to-biochemical organic wastewater, and the energy consumption is particularly high, so it is difficult to popularize and apply it on a large scale; the ultrasonic method has the advantages of good treatment effect and no secondary pollution, but due to its high energy consumption , not suitable for the treatment of large volumes of water.
水力空化技术是将废水以高流速状态通过管道低压区，使废水中形成大量气泡，当废水由高速低压区进入低速高压区时，废水中的气泡瞬间发生塌缩和爆裂，形成气泡溃灭，进而在局部区域产生瞬时高温、高压和强烈冲击波的极端条件，实现废水中有机物的分解去除。The hydraulic cavitation technology is to pass the wastewater through the low-pressure area of the pipeline at a high flow rate, so that a large number of bubbles are formed in the wastewater. When the wastewater enters the low-velocity and high-pressure area from the high-speed and low-pressure area, the bubbles in the wastewater collapse and burst instantly, forming bubble collapse. , and then generate extreme conditions of instantaneous high temperature, high pressure and strong shock waves in local areas to realize the decomposition and removal of organic matter in wastewater.
鉴于目前难生化有机废水预处理技术中的不足，开发预处理效果好，简单易用，造价、运行废水低廉的难生化有机废水预处理装置是目前难生化有机废水预处理亟需解决的问题之一。In view of the deficiencies in the current pretreatment technology of difficult-to-biochemical organic wastewater, the development of a pre-treatment device for difficult-to-biochemical organic wastewater with good pretreatment effect, easy to use, low cost and low operating wastewater is one of the problems that need to be solved urgently in the pretreatment of difficult-to-biochemical organic wastewater. one.
发明内容Contents of the invention
本实用新型的目的就在于为了解决上述问题而提供一种难生化有机废水预处理装置。The purpose of this utility model is to provide a kind of refractory organic wastewater pretreatment device in order to solve the above problems.
本实用新型通过以下技术方案来实现上述目的：本实用新型由进水水箱、加压泵、水管、旋流加速器、水力空化器、储水箱组成。所述的进水水箱设有桨式搅拌器，用于储存难生化有机废水，实现难生化有机废水的混合与储存，进水水箱经所述的水管与所述的旋流加速器相连接，所述的水管上设有所述的加压泵，所述的旋流加速器底部开孔与所述的水力空化器相连接，所述的水力空化器末端接有所述的储水箱。所述的旋流加速器由进水口、筒体、锥体、出水口组成。所述的出水口与所述的水力空化器相连接，所述的水力空化器由渐缩管、喉管、渐扩管组成，所述的渐缩管末端设有真空压力表，所述的喉管内部设有多孔板，所述的喉管末端与渐扩管相连接，所述的渐扩管末端设有压力表并与所述的储水箱相连接。The utility model achieves the above object through the following technical solutions: the utility model is composed of a water inlet tank, a pressurizing pump, a water pipe, a cyclone accelerator, a hydraulic cavitator, and a water storage tank. The water inlet tank is equipped with a paddle agitator for storing difficult-to-biochemical organic wastewater to realize the mixing and storage of difficult-to-biochemical organic wastewater. The water inlet tank is connected to the cyclone accelerator through the water pipe. The water pipe is provided with the booster pump, the opening at the bottom of the cyclone accelerator is connected to the hydraulic cavitator, and the end of the hydraulic cavitator is connected to the water storage tank. The cyclone accelerator is composed of a water inlet, a cylinder, a cone and a water outlet. The water outlet is connected to the hydraulic cavitator, and the hydraulic cavitator is composed of a reducer, a throat, and an expander. The end of the reducer is provided with a vacuum pressure gauge. A perforated plate is arranged inside the throat, and the end of the throat is connected with the expander, and the end of the expander is provided with a pressure gauge and connected with the water storage tank.
难生化有机废水预处理的流程包括如下步骤：The pretreatment process of biochemically difficult organic wastewater includes the following steps:
1）难生化有机废水收集于进水水箱中，在桨式搅拌机搅拌下均匀混合。1) The difficult-to-biochemical organic wastewater is collected in the water inlet tank and mixed evenly under the stirring of the paddle mixer.
2）均匀混合的废水由水管经加压泵加压后进入旋流加速器进水口，旋流加速器进水口为蜗壳式进水口，进水方向为筒体的切线方向，难生化有机废水进入筒体后，沿筒体内壁由上到下做旋转运动，到达筒体底部后难生化有机废水继续沿锥体内壁面向下旋转运动，运动过程中难生化有机废水的速度逐渐增加，到达锥体底部后达到最大。2) The uniformly mixed wastewater is pressurized by the water pipe through the booster pump and then enters the water inlet of the cyclone accelerator. The water inlet of the cyclone accelerator is a volute type water inlet, and the water inlet direction is the tangential direction of the cylinder. After reaching the bottom of the cylinder, the refractory organic wastewater continues to rotate downward along the inner wall of the cone. During the movement, the speed of the refractory organic wastewater gradually increases until it reaches the bottom of the cone. then reaches the maximum.
3）旋转运动到锥体底部的难生化有机废水经底部的出水口进入水力空化器的渐缩管，随着渐缩管管径的减小，难生化有机废水的流速进一步增加，当到达喉管时达到最大。3) The biochemically difficult organic wastewater that rotates to the bottom of the cone enters the reducer of the hydraulic cavitator through the outlet at the bottom. As the diameter of the reducer decreases, the flow rate of the difficultly biochemically organic wastewater increases further. Throat reaches maximum.
4）进入喉管内的难生化有机废水穿过设于喉管内的多孔板，形成混有大量空化气泡的高速、低压水流。4) The difficult-to-biochemical organic wastewater entering the throat passes through the perforated plate in the throat to form a high-speed, low-pressure water flow mixed with a large number of cavitation bubbles.
5）高速、低压水流沿喉管进入渐扩管后，由于管径逐步增加，难生化有机废水的流速逐步降低，此时空化气泡发生溃灭，难生化有机废水中的COD得到降解。5) After the high-speed and low-pressure water flow enters the expanding pipe along the throat, the flow rate of the biochemically difficult organic wastewater gradually decreases due to the gradual increase of the pipe diameter. At this time, the cavitation bubbles collapse and the COD in the biochemically difficult organic wastewater is degraded.
6）COD初步降解后的废水进入储水箱。6) The waste water after the initial degradation of COD enters the water storage tank.
附图说明Description of drawings
附图1为本实用新型的处理工艺流程示意图。Accompanying drawing 1 is the processing technological process schematic diagram of the present utility model.
附图2为本实用新型的旋流加速器主视图示意图。Accompanying drawing 2 is the schematic diagram of the front view of the cyclone accelerator of the present invention.
附图3为本实用新型水力空化器主视图示意图。Accompanying drawing 3 is the schematic diagram of the front view of the hydraulic cavitator of the present invention.
附图4为本实用新型所述多孔板左视图示意图。Accompanying drawing 4 is the schematic diagram of the left view of the perforated plate described in the present invention.
具体实施方式detailed description
下面结合附图1～附图4对本实用新型做以下详细说明。Below in conjunction with accompanying drawing 1～accompanying drawing 4 the utility model is described in detail below.
如附图1～附图4所示，本实用新型包括进水水箱（1）、加压泵（12）、水管（13）、旋流加速器（2）、水力空化器（3）、储水箱（4）。其中，进水水箱（1）中心部位固定安装有桨式搅拌机（11）；旋流加速器（2）由进水口（21）、筒体（22）、锥体（23）和出水管（24）组成，各部位间均以法兰顺次密封连接；进水水箱（1）通过水管（13）与进水口（21）以法兰密封连接；水管（12）上安装有加压泵（16）和阀门（14），各部件间均以法兰密封连接；水力空化器（3）由渐缩管（31）、喉管（32）和渐扩管（33）组成，各部位间均以法兰顺次密封连接；出水管（24）与渐缩管（31）以法兰密封连接；渐缩管（31）末端设有真空压力表（311），喉管（32）末端设有多孔板（321），多孔板（321）上均匀分布有微孔（3211）；渐扩管（33）末端设有压力表（331），渐扩管（33）与储水箱（4）以法兰密封连接。As shown in accompanying drawings 1 to 4, the utility model includes a water inlet tank (1), a booster pump (12), a water pipe (13), a cyclone accelerator (2), a hydraulic cavitator (3), a storage water tank (4). Among them, a paddle mixer (11) is fixedly installed at the center of the water inlet tank (1); Each part is sealed and connected with flanges in sequence; the water inlet tank (1) is connected with the water inlet (21) through the water pipe (13) and the water inlet (21) is connected with the flange; the water pipe (12) is equipped with a booster pump (16) and the valve (14), all parts are sealed and connected by flanges; the hydraulic cavitator (3) is composed of a reducer (31), a throat (32) and an expander (33), and all parts are sealed with The flanges are sequentially sealed and connected; the outlet pipe (24) and the reducer (31) are connected by a flange; the end of the reducer (31) is provided with a vacuum pressure gauge (311), and the end of the throat (32) is provided with a porous plate (321), micropores (3211) are evenly distributed on the perforated plate (321); a pressure gauge (331) is provided at the end of the expanding tube (33), and the expanding tube (33) and the water storage tank (4) are flanged Sealed connection.
难生化有机废水在进水水箱(1)经桨式搅拌机（11）搅拌混合后，经加压泵（12）加压后经水管（13）进入进水口（21）后沿筒体内壁旋转向下运动至锥体（23），经锥体（23）初步加速后获得较高的流速，再经锥体（23）底部的出水口（24）进入渐缩管（31），经渐缩管（31）进一步加速后进入喉管（32），经设于喉管（32）末端的多孔板（321）上的微孔（3211）进一步加速，此时难生化有机废水速度最大，压力变小，并产生大量气泡，具备空化条件，难生化有机废水穿过微孔（3211）后随之进入渐扩管（33）中，难生化有机废水的流速瞬间降低，压力变大，难生化有机废水中的大量气泡集中发生溃灭，废水中的有机物得到分解，实现难生化有机废水的预处理，处理后的废水由渐扩管（33）进入储水箱（4）；在难生化有机废水处理过程中，通过阀门（14）、真空压力表（311）和压力表（331）控制难生化有机废水的预处理效果。The difficult-to-biochemical organic wastewater is stirred and mixed by the paddle mixer (11) in the water inlet tank (1), pressurized by the booster pump (12), enters the water inlet (21) through the water pipe (13), and rotates along the inner wall of the cylinder to Move down to the cone (23), obtain a higher flow rate after the initial acceleration of the cone (23), and then enter the reducer (31) through the water outlet (24) at the bottom of the cone (23), and pass through the reducer (31) enters the throat pipe (32) after further acceleration, and further accelerates through the micropores (3211) on the perforated plate (321) at the end of the throat pipe (32). , and produce a large number of bubbles, which meet the cavitation conditions. The difficult-to-biochemical organic wastewater passes through the micropore (3211) and then enters the expander (33). The flow rate of the difficult-to-biochemical organic wastewater decreases instantly, and the pressure increases. A large number of air bubbles in the wastewater are concentrated and collapsed, and the organic matter in the wastewater is decomposed to realize the pretreatment of biochemically difficult organic wastewater. The treated wastewater enters the water storage tank (4) through the expanding pipe (33); During the process, the pretreatment effect of the biochemically difficult organic wastewater is controlled through the valve (14), the vacuum pressure gauge (311) and the pressure gauge (331).
所述的进水口（21）为蜗壳式结构，使废水沿切线方向进入筒体（22）。The water inlet (21) is a volute structure, allowing waste water to enter the cylinder (22) along a tangential direction.
所述的进水口（21）的直径与所述的出水口（24）的直径相同，筒体（22）的直径与进水口（21）的直径和出水口（24）的直径之比在4~5之间。The diameter of the water inlet (21) is the same as the diameter of the water outlet (24), and the ratio of the diameter of the cylinder (22) to the diameter of the water inlet (21) and the diameter of the water outlet (24) is 4 ~5 between.
所述的筒体（22）直径与其高度之比在1:1左右，所述的锥体（23）与所述的筒体（22）的高度比在2~4之间。The ratio of the diameter of the cylinder (22) to its height is about 1:1, and the height ratio of the cone (23) to the cylinder (22) is between 2 and 4.
所述的渐缩管（31）的进口直径与喉管（32）的直径之比在0.4~0.6之间。The ratio of the inlet diameter of the reducer (31) to the diameter of the throat (32) is between 0.4 and 0.6.
所述的渐缩管（31）的锥角为20°~25°。The taper angle of the reducer (31) is 20°-25°.
所述的喉管（32）的直径与长度之比在0.3~0.5之间。The diameter-to-length ratio of the throat (32) is between 0.3 and 0.5.
所述的渐扩管（33）的出口直径与喉管（32）的直径之比在2~2.5之间。The ratio of the outlet diameter of the expander (33) to the diameter of the throat (32) is between 2 and 2.5.
所述的渐扩管（33）的锥角为7°~10°。The cone angle of the expander (33) is 7°-10°.
所述的微孔（3211）的孔径为0.8~1.5mm。The diameter of the micropores (3211) is 0.8-1.5mm.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620635342.5U CN205999060U (en) | 2016-06-24 | 2016-06-24 | A kind of difficult biochemistry organic wastewater pretreatment unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620635342.5U CN205999060U (en) | 2016-06-24 | 2016-06-24 | A kind of difficult biochemistry organic wastewater pretreatment unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205999060U true CN205999060U (en) | 2017-03-08 |
Family
ID=58205748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620635342.5U Expired - Fee Related CN205999060U (en) | 2016-06-24 | 2016-06-24 | A kind of difficult biochemistry organic wastewater pretreatment unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205999060U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162101A (en) * | 2017-07-14 | 2017-09-15 | 核工业理化工程研究院 | A kind of big flux Hydrodynamic cavitation generator and cavitation process based on Venturi tube |
| CN108328695A (en) * | 2018-01-11 | 2018-07-27 | 江苏大学 | A kind of dismountable orifice plate cavitation technology organic contamination device |
| CN113019722A (en) * | 2020-12-03 | 2021-06-25 | 中国舰船研究设计中心 | Multi-stage rotational flow cavitation system with self-cleaning function |
| RU225617U1 (en) * | 2023-11-20 | 2024-04-25 | Федеральное государственное бюджетное учреждение науки Байкальский институт природопользования Сибирского отделения Российской академии наук (БИП СО РАН) | Device for post-treatment of wastewater from difficult-to-oxidize organic pollutants |
-
2016
- 2016-06-24 CN CN201620635342.5U patent/CN205999060U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162101A (en) * | 2017-07-14 | 2017-09-15 | 核工业理化工程研究院 | A kind of big flux Hydrodynamic cavitation generator and cavitation process based on Venturi tube |
| CN107162101B (en) * | 2017-07-14 | 2023-06-30 | 核工业理化工程研究院 | Large-flux hydrodynamic cavitation generator based on venturi tube and cavitation method |
| CN108328695A (en) * | 2018-01-11 | 2018-07-27 | 江苏大学 | A kind of dismountable orifice plate cavitation technology organic contamination device |
| CN113019722A (en) * | 2020-12-03 | 2021-06-25 | 中国舰船研究设计中心 | Multi-stage rotational flow cavitation system with self-cleaning function |
| RU225617U1 (en) * | 2023-11-20 | 2024-04-25 | Федеральное государственное бюджетное учреждение науки Байкальский институт природопользования Сибирского отделения Российской академии наук (БИП СО РАН) | Device for post-treatment of wastewater from difficult-to-oxidize organic pollutants |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105884006A (en) | Biorefractory organic wastewater pretreatment device and process | |
| CN106186179A (en) | A kind of organic water based on Hydrodynamic cavitation pollutes degeneration system | |
| CN210085066U (en) | Micro-nano aeration BAF treatment device | |
| CN205275297U (en) | Spiral -flow aeration ware | |
| CN204779004U (en) | Organic waste water circulating fluidized bed fenton reactor | |
| CN204981318U (en) | Biological aerated filter | |
| CN203625105U (en) | Catalytic ozonation pretreatment device for oil refinery sewage | |
| CN107473440B (en) | A device for improving the utilization rate of ozone in multi-stage ozone flotation process | |
| CN109205694A (en) | A kind of adjustable Hydrodynamic cavitation bin device | |
| CN205953638U (en) | High -efficient ozone treatment reactor | |
| CN202124516U (en) | Bypass aerating apparatus | |
| CN204162573U (en) | A kind of Sewage treatment systems | |
| CN207313331U (en) | A kind of printing and dyeing wastewater processing equipment | |
| CN205024045U (en) | An O3/UV-biological method treatment device for advanced sewage treatment | |
| CN106044950B (en) | A kind of positive osmosis treatment system and its processing method of saline-alkali water | |
| CN204874185U (en) | High salt sewage treatment plant | |
| CN203976535U (en) | The waste water advanced treatment reactor of heterogeneous effect | |
| CN204224384U (en) | Integral type high-concentration hardly-degradable organic industrial sewage treatment unit | |
| CN204111412U (en) | A kind of circulating sludge bed anaerobic reactor | |
| CN103058457B (en) | Device for controlling MBR (Membrane Bio-Reactor) membrane pollution and supplementing aeration and control method of same | |
| CN207980896U (en) | Pipe-line mixer | |
| CN207330529U (en) | A kind of sewage aeration aeration device | |
| CN202322572U (en) | Device for processing landfill leachate | |
| CN205500831U (en) | Novel water treatment high energy blender | |
| CN204783671U (en) | Novel liquid ring vacuum pump system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20180624 |