CN202968311U - Water treatment system - Google Patents
Water treatment system Download PDFInfo
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- CN202968311U CN202968311U CN 201220595554 CN201220595554U CN202968311U CN 202968311 U CN202968311 U CN 202968311U CN 201220595554 CN201220595554 CN 201220595554 CN 201220595554 U CN201220595554 U CN 201220595554U CN 202968311 U CN202968311 U CN 202968311U
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Abstract
The utility model provides a water treatment system comprising a primary sedimentation tank, an adjusting tank, a hydrolysis acidification tank, an anaerobic tank, an aerobic tank, a secondary sedimentation tank and a discharging tank, which are sequentially connected through a pipeline, wherein the discharging tank is connected with the secondary sedimentation tank; the discharging tank is connected with the adjusting tank through a reflowing pipe; the reflowing pipe is provided with a water reflowing pump; the discharging tank is provided with a water discharging pipe which is provided with a water discharging valve; a water quality monitor is arranged in the discharging tank and is connected with a controller; and the controller is connected with the water reflowing pump and the water discharging valve respectively. The water quality monitor arranged in the discharging tank is used for detecting the water quality; if detection results achieve a discharging standard, the water discharging valve is controlled to be opened by the controller so as to carrying out discharging; if any one detection result does not achieve discharging standard, the water reflowing pump is controlled to be opened by the controller to wholly convey sewage in the discharging tank back to the adjusting tank for sewage treatment again; and therefore, the sewage can achieve the discharging standard.
Description
Technical field
The utility model relates to technical field of sewage, relates in particular to a kind of water treatment system.
Background technology
Along with the continuous enhancing of people's environmental consciousness, the improvement of polluting for water comes into one's own all the more.Continuous input along with country in water treatment has now been set up a collection of water treatment plant with certain processing power, utilizes water treatment system that trade effluent and sanitary sewage are processed, thereby realizes the recycle of water resources.
At present, common water treatment system needs through following step when trade effluent or sanitary sewage are processed:
The first step except the solid pollution material of the suspended state in decontaminated water, and for subsequent disposal provides pre-treatment, is generally completed by primary sedimentation pond;
Second step except the organic pollution materials in decontaminated water, is generally completed by anaerobic pond and Aerobic Pond;
The 3rd step, sewage is carried out clarifying treatment, will generate moisture from out, generally complete by secondary sedimentation basins.
Just can directly be discharged or be recycled through the sewage after above-mentioned processing.
But when needing waste water to be processed or concentration of wastewater too high, existing water treatment system is difficult to guarantee that primary treatment just can be with pollutent full scale clearance wherein, therefore also contain a certain amount of pollutent in treated water, and do not reach emission standard, but existing water treatment system also can only these are below standard sewage directly discharge or dilute after again the discharging, thereby still can be to environment.
The utility model content
The purpose of this utility model is to provide a kind of water treatment system, makes treated sewage can reach the standard of discharging, thereby has guaranteed the treatment effect of sewage.
A kind of water treatment system that the utility model provides comprises the primary sedimentation pond, equalizing tank, hydrolysis acidification pool, anaerobic pond, Aerobic Pond and the secondary sedimentation basins that connect successively by pipeline; Also comprise discharging pond, water quality monitoring system and controller;
Described discharging pond is connected with described secondary sedimentation basins by pipeline, described discharging pond is connected with described equalizing tank by at least one return line, be provided with the backflow water pump on described return line, described discharging pond is provided with water shoot, is provided with water discharge valve on described water shoot;
Described water quality monitoring system is arranged in described discharging pond, and described water quality monitoring system is connected with described controller, and described controller is connected with described water discharge valve with described backflow water pump respectively.
Described water quality monitoring system comprises nh 3-n analyser, chemical oxygen demand (chemical oxygen demand, abbreviation COD) one or more in analyser, acidity-basicity ph analyser, suspended substance (suspended solid is called for short SS) analyser and heavy metal analyser.
Optionally, described discharging is provided with the liquid level monitoring device in the pond, and described liquid level monitoring device is connected with described controller.
Optionally, the quantity of described return line is two.
Optionally, described controller is FPGA (Programmable logic Controller is called for short PLC) controller.
Optionally, described anaerobic pond comprises one-level anaerobic pond and secondary anaerobic pond, and described one-level anaerobic pond is connected by pipeline with described secondary anaerobic pond;
Described one-level anaerobic pond is connected with described hydrolysis acidification pool by pipeline, and described secondary anaerobic pond is connected with described Aerobic Pond by pipeline.
Optionally, described Aerobic Pond comprises one-level Aerobic Pond and secondary Aerobic Pond, and described one-level Aerobic Pond is connected by pipeline with described secondary Aerobic Pond;
Described one-level Aerobic Pond is connected with described anaerobic pond by pipeline, and described secondary Aerobic Pond is connected with described secondary sedimentation basins by pipeline.
Optionally, described Aerobic Pond comprises one-level Aerobic Pond and secondary Aerobic Pond, and described one-level Aerobic Pond is connected by pipeline with described secondary Aerobic Pond;
Described one-level Aerobic Pond is connected with described secondary anaerobic pond by pipeline, and described secondary Aerobic Pond is connected with described secondary sedimentation basins by pipeline.
Optionally, described backflow water pump adopts impeller pump.
Optionally, described water discharge valve adopts magnetic valve.
Compared with prior art, the water treatment system that the utility model provides, it is sent into water after treatment and discharges in the pond, then utilize the water quality monitoring system that discharges setting in the pond that water quality is checked, if all reach emission standard, control water discharge valve by controller and start, thereby realize discharging; If have at least one not reach emission standard, control the recirculation water pump startup by controller, the sewage that discharges in the pond is all returned in equalizing tank and re-starts sewage disposal, until reach emission standard; Therefore this system makes treated sewage can reach the standard of discharging, thereby has guaranteed the treatment effect of sewage.
In further technical scheme, water quality monitoring system can be one or more in nh 3-n analyser, chemical oxygen demand cod analyser, acidity-basicity ph analyser, ss suspended solid analyser and heavy metal analyser, can select corresponding analyser according to the waste water of processing or the water quality difference of sewage, and water quality is monitored, make the use range of water treatment system wider, be beneficial to and promote the use of.
In further technical scheme, discharging is provided with the liquid level monitoring device in the pond, when the sewage after processing does not reach emission standard, utilizes the liquid level monitoring device can effectively monitor the liquid level of discharging in the pond, guarantees that the sewage that discharges in the pond all is back in equalizing tank; Simultaneously the liquid level monitoring device is connected with controller, and when the sewage in the discharging pond all after backflows, the liquid level monitoring device can be to the controller transmitted signal, thereby utilizes controller closing volume water pump, prevents sky and takes out, and recirculation water is pumped up provide protection.
In further technical scheme, by two return lines are set, can effectively improve sewage in the discharging pond to the speed of equalizing tank internal reflux, the running efficiency of raising whole system.
In further technical scheme, adopt the PLC controller, make whole system convenient operation more, level of automation is higher.
In further technical scheme, anaerobic pond adopts one-level anaerobic pond and secondary anaerobic pond in conjunction with setting, can effectively guarantee the reaction effect of anaerobic pond.
In further technical scheme, Aerobic Pond adopts one-level Aerobic Pond and secondary Aerobic Pond in conjunction with setting, can effectively guarantee the reaction effect of Aerobic Pond.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the water treatment system that Fig. 1 provides for the utility model embodiment.
Description of drawings:
The 1-primary sedimentation pond; The 2-equalizing tank; The 3-hydrolysis acidification pool; The 4-anaerobic pond; The 5-Aerobic Pond; The 6-secondary sedimentation basins;
7-discharges the pond, 71-water quality monitoring system, 72-controller, 73-return line, 74-backflow water pump, 75-water shoot, 76-water discharge valve.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer; the below will carry out clear, complete description to the technical solution of the utility model; based on the embodiment in the utility model; those of ordinary skills are resulting all other embodiments under the prerequisite of not making creative work, all belong to the scope that the utility model is protected.
As shown in Figure 1, the water treatment system that embodiment of the present utility model provides comprises the primary sedimentation pond 1, equalizing tank 2, hydrolysis acidification pool 3, anaerobic pond 4, Aerobic Pond 5 and the secondary sedimentation basins 6 that connect successively by pipeline; Also comprise discharging pond 7, water quality monitoring system 71 and controller 72; Discharging pond 7 is connected with secondary sedimentation basins 6 by pipeline, discharges pond 7 and is connected with equalizing tank 2 by at least one return line 73, is provided with backflow water pump 74 on return line 73, discharges pond 7 and is provided with water shoot 75, is provided with water discharge valve 76 on water shoot 75; Water quality monitoring system 71 is arranged in discharging pond 7, and water quality monitoring system 71 is connected with controller 72, and controller 72 is connected with water discharge valve 76 with backflow water pump 74 respectively.
It is sent into sewage after treatment and discharges in pond 7, then utilizes 71 pairs of water quality of water quality monitoring system of discharging pond 7 interior settings to detect, if detected result all reaches emission standard, by controller 72 control water discharge valves 76 startups, thereby realizes discharging; If there is any one not reach emission standard in detected result, control backflow water pump 74 by controller 72 and start, the sewage that discharge in pond 7 are all returned in equalizing tank 2 and re-start sewage disposal by return line 73, until reach emission standard; Therefore this system makes treated sewage can reach the standard of discharging, thereby has guaranteed the treatment effect of sewage.
Its concrete treating processes is:
First sewage is sent into primary sedimentation pond 1, the suspended sediment concentration in the interior reduction sewage of primary sedimentation pond 1 is for subsequent disposal is prepared; Then sewage is sent in equalizing tank 2, and the pH value, water temperature etc. of regulating sewage in equalizing tank 2 regulate, for pre-treatment is done in follow-up reaction; Sewage is sent in anaerobic pond 4 again, utilized the organism in the anerobe removal waste water in anaerobic pond 4, the main wherein organism of difficult for biological degradation changes the organism of readily biodegradable into, improves the biodegradability of waste water, is beneficial to follow-up aerobic treatment; Again sewage is sent in Aerobic Pond 5, utilized active sludge to carry out aerobic repiration, further organic substance decomposing is become inorganics, play the function of removing pollutent; Again sewage is sent in secondary sedimentation basins 6, and realized separating of active sludge and water secondary sedimentation basins 6 is interior; The water that at last separation is obtained is sent into and is discharged in pond 7, waits to be discharged.
Water after separating enter discharging pond 7 interior after, the water quality monitoring system 71 of discharging pond 7 interior settings can detect the water quality of discharging in pond 7, when in detected result, any one detected result does not satisfy the standard of discharging, just can control backflow water pump 74 by controller 72 starts, the sewage that discharge in pond 7 are all returned in equalizing tank 2 by return line 73, and repeat above-mentioned treating processes.
Only have when all detected results all satisfy emission standard, just can control water discharge valve 76 by controller 72 and open, thereby realize draining.
In the present embodiment, water quality monitoring system 71 comprises one or more in nh 3-n analyser, COD analyser, pH analyser, SS analyser and heavy metal analyser.
Wherein nh 3-n analyser can be used for the content of the ammonia in water, nitrogen is detected; The COD analyser can be used for the chemical oxygen demand in water is detected; The pH analyser can be used for the potential of hydrogen in water is detected; The SS analyser can be used for the suspended substance in water is detected; Heavy metal analyser can be used for the metal ion content in water is detected.
In use, can carry out choice for use according to the water quality that water treatment system is processed, any in the above-mentioned nh 3-n analyser of optional use, COD analyser, pH analyser, SS analyser and heavy metal analyser detects water quality; When the result that detects when the analyser that uses satisfies emission standard, control water discharge valve 76 startups by controller 72 and carry out draining, when the result that detects when the analyser that uses does not satisfy emission standard, controlling backflow water pump 74 by controller 72 starts, the sewage that discharge in pond 7 are all returned in equalizing tank 2 by return line 73, and repeat above-mentioned treating processes.
When containing multiple pollutant matter in the water quality of processing, also the multiple arbitrary combination of carrying out in above-mentioned nh 3-n analyser, COD analyser, pH analyser, SS analyser and the heavy metal analyser of optional use is used, when using a plurality of analysers that water quality is detected, if when having one not satisfy emission standard in a plurality of detected results, controlling backflow water pump 74 by controller 72 starts, the sewage that discharge in pond 7 are all returned in equalizing tank 2 by return line 73, and repeat above-mentioned treating processes; Only have when a plurality of detected results all satisfy emission standard, just control water discharge valve 76 startups by controller 72 and carry out draining.
In the present embodiment, also can discharge the interior liquid level monitoring device that arranges in pond 7, and the liquid level monitoring device is being connected with controller 72; When entering that the sewage of discharging in pond 7 does not reach emission standard and when refluxing, utilize the liquid level monitoring device can effectively monitor liquid level in discharging pond 7, guarantee that discharging pond 7 interior sewage all are back in equalizing tank 2; The liquid level monitoring device is connected with controller 72 simultaneously; when the sewage of discharging in pond 7 all after backflows, the liquid level monitoring device can be to controller 72 transmitted signals, thereby utilize controller 72 closing volume water pumps 74; prevent sky and take out, backflow water pump 74 is played a protective role.
In the present embodiment, in order to improve the running efficiency of whole system, quantity that can return line 73 is set to two, and is provided with backflow water pump 74 on each return line 73; The sewage of discharging in pond 7 does not reach emission standard and when refluxing, utilize two return lines 73 can effectively improve return velocity when entering, and then the working efficiency of raising whole system; When one of them return line 73 or backflow water pump mounted thereto 74 need maintenance, also can utilize another return line 73 to work on, thereby can carry out maintenance of the equipment under non-stop-machine state simultaneously, improve the utilization ratio of whole system.
It should be noted that, these are only a kind of embodiment of return line 73, the quantity of return line 73 also can be a plurality of, can arrange according to actual needs, and its magnitude setting is not unique.
In the present embodiment, controller 72 is for can adopt the PLC controller, utilize the FPGA controllability of PLC controller, can improve the controllability to backflow water pump 74, water discharge valve 76, simultaneously can effectively shorten the time of response, substantially can guarantee to realize the closure or openness of backflow water pump 74 and the closure or openness of water discharge valve 76 in 3 seconds, and make whole system convenient operation more, level of automation is higher.
In the present embodiment, in order effectively to guarantee the reaction effect of anaerobic pond 4, anaerobic pond 4 can be set to two, be respectively one-level anaerobic pond and secondary anaerobic pond, the one-level anaerobic pond is connected by pipeline with the secondary anaerobic pond, the one-level anaerobic pond is connected with hydrolysis acidification pool 3 by pipeline, and the secondary anaerobic pond is connected with Aerobic Pond 5 by pipeline; Utilize one-level anaerobic pond and secondary anaerobic pond to carry out step by step anaerobic reaction to sewage, thereby guaranteed the effect of anaerobic reaction, improve the effect of sewage disposal.
In the present embodiment, in order effectively to guarantee the reaction effect of Aerobic Pond 5, Aerobic Pond 5 can be set to two, is respectively one-level Aerobic Pond and secondary Aerobic Pond, and the one-level Aerobic Pond is connected by pipeline with the secondary Aerobic Pond; The one-level Aerobic Pond is connected with anaerobic pond 4 by pipeline, and the secondary Aerobic Pond is connected with secondary sedimentation basins 6 by pipeline; Utilize one-level Aerobic Pond and secondary Aerobic Pond to carry out step by step aerobic reaction to sewage, thereby guaranteed the effect of aerobic reaction, improve the effect of sewage disposal.
In like manner, anaerobic pond 4 and Aerobic Pond 5 also can all be set to two, concrete structure is: anaerobic pond 4 comprises one-level anaerobic pond and secondary anaerobic pond, Aerobic Pond 5 comprises one-level Aerobic Pond and secondary Aerobic Pond, the one-level anaerobic pond is connected by pipeline with the secondary anaerobic pond, and the one-level anaerobic pond is connected with hydrolysis acidification pool 3 by pipeline, and the secondary anaerobic pond is connected with the one-level Aerobic Pond by pipeline, the one-level Aerobic Pond is connected by pipeline with the secondary Aerobic Pond, and the secondary Aerobic Pond is connected with secondary sedimentation basins 6 by pipeline.
It should be noted that, these are only several embodiments that anaerobic pond 4 and Aerobic Pond 5 arrange, the concrete magnitude setting of anaerobic pond 4 and Aerobic Pond 5 can specifically be set according to the needs of sewage disposal.
In the present embodiment, in order to improve the efficient of drawing water of backflow water pump 74, backflow water pump 74 can adopt impeller pump.
In the present embodiment, in order to make the better control of realization to water discharge valve 76 of controller 72, water discharge valve 76 can adopt magnetic valve.
In the present embodiment, because sewage has certain corrodibility, so return line 73 can adopt polyvinyl chloride (Poly vinyl chlorid is called for short PVC) pipe.
Need to prove; the water treatment system that the utility model provides can be used for disposing of sewage, middle water and reuse water etc.; but be not limited only to that these are several, so long as water quality is processed and draining monitored all can use this system, also should fall into protection domain of the present utility model simultaneously.
It should be noted that at last: above embodiment and embodiment only in order to the technical solution of the utility model to be described, are not intended to limit; Although with reference to aforementioned embodiments and embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned embodiments or embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make essence disengaging the utility model embodiment of appropriate technical solution or the spirit and scope of embodiment technical scheme.
Claims (10)
1. a water treatment system, comprise the primary sedimentation pond, equalizing tank, hydrolysis acidification pool, anaerobic pond, Aerobic Pond and the secondary sedimentation basins that connect successively by pipeline; It is characterized in that, also comprise discharging pond, water quality monitoring system and controller;
Described discharging pond is connected with described secondary sedimentation basins by pipeline, described discharging pond is connected with described equalizing tank by at least one return line, be provided with the backflow water pump on described return line, described discharging pond is provided with water shoot, is provided with water discharge valve on described water shoot;
Described water quality monitoring system is arranged in described discharging pond, and described water quality monitoring system is connected with described controller, and described controller is connected with described water discharge valve with described backflow water pump respectively.
2. water treatment system according to claim 1, is characterized in that, described water quality monitoring system comprises one or more in nh 3-n analyser, chemical oxygen demand cod analyser, acidity-basicity ph analyser, ss suspended solid analyser and heavy metal analyser.
3. water treatment system according to claim 1 and 2, is characterized in that, described discharging is provided with the liquid level monitoring device in the pond, and described liquid level monitoring device is connected with described controller.
4. water treatment system according to claim 1 and 2, is characterized in that, the quantity of described return line is two.
5. water treatment system according to claim 1 and 2, is characterized in that, described controller is FPGA PLC controller.
6. water treatment system according to claim 1 and 2, is characterized in that, described anaerobic pond comprises one-level anaerobic pond and secondary anaerobic pond, and described one-level anaerobic pond is connected by pipeline with described secondary anaerobic pond;
Described one-level anaerobic pond is connected with described hydrolysis acidification pool by pipeline, and described secondary anaerobic pond is connected with described Aerobic Pond by pipeline.
7. water treatment system according to claim 1 and 2, is characterized in that, described Aerobic Pond comprises one-level Aerobic Pond and secondary Aerobic Pond, and described one-level Aerobic Pond is connected by pipeline with described secondary Aerobic Pond;
Described one-level Aerobic Pond is connected with described anaerobic pond by pipeline, and described secondary Aerobic Pond is connected with described secondary sedimentation basins by pipeline.
8. water treatment system according to claim 6, is characterized in that, described Aerobic Pond comprises one-level Aerobic Pond and secondary Aerobic Pond, and described one-level Aerobic Pond is connected by pipeline with described secondary Aerobic Pond;
Described one-level Aerobic Pond is connected with described secondary anaerobic pond by pipeline, and described secondary Aerobic Pond is connected with described secondary sedimentation basins by pipeline.
9. water treatment system according to claim 1 and 2, is characterized in that, described backflow water pump adopts impeller pump.
10. water treatment system according to claim 1 and 2, is characterized in that, described water discharge valve adopts magnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595554 CN202968311U (en) | 2012-11-13 | 2012-11-13 | Water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595554 CN202968311U (en) | 2012-11-13 | 2012-11-13 | Water treatment system |
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| Publication Number | Publication Date |
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| CN202968311U true CN202968311U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220595554 Expired - Lifetime CN202968311U (en) | 2012-11-13 | 2012-11-13 | Water treatment system |
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| CN (1) | CN202968311U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193112A (en) * | 2014-09-18 | 2014-12-10 | 苏州新协力环保科技有限公司 | Biological treatment system for sewage |
| CN104649404A (en) * | 2015-03-03 | 2015-05-27 | 上海城投污水处理有限公司石洞口污水处理厂 | System and method for accurately controlling discharge of treated sewage |
| CN105399157A (en) * | 2015-12-04 | 2016-03-16 | 天津邦盛净化设备工程有限公司 | Water pollution monitoring and governing service system and method based on Internet |
| CN105399267A (en) * | 2015-09-25 | 2016-03-16 | 张荣斌 | Automatic control method of urban sewage treatment |
| CN105824302A (en) * | 2016-05-16 | 2016-08-03 | 山东圣文环保科技有限公司 | Controllable sewage discharge monitoring system |
| CN109071286A (en) * | 2016-04-08 | 2018-12-21 | 艾森曼欧洲公司 | Method and apparatus for handling the liquid containing cyanide |
| CN111945817A (en) * | 2020-08-13 | 2020-11-17 | 中国建筑设计研究院有限公司 | Indoor reclaimed water reuse control system and method for public building |
| CN113149219A (en) * | 2021-05-18 | 2021-07-23 | 中国市政工程西北设计研究院有限公司 | Purification treatment system for tail water of sewage plant and construction method thereof |
-
2012
- 2012-11-13 CN CN 201220595554 patent/CN202968311U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193112A (en) * | 2014-09-18 | 2014-12-10 | 苏州新协力环保科技有限公司 | Biological treatment system for sewage |
| CN104649404A (en) * | 2015-03-03 | 2015-05-27 | 上海城投污水处理有限公司石洞口污水处理厂 | System and method for accurately controlling discharge of treated sewage |
| CN105399267A (en) * | 2015-09-25 | 2016-03-16 | 张荣斌 | Automatic control method of urban sewage treatment |
| CN105399267B (en) * | 2015-09-25 | 2017-07-28 | 江西洪城水业环保有限公司 | A kind of autocontrol method of municipal sewage treatment |
| CN105399157A (en) * | 2015-12-04 | 2016-03-16 | 天津邦盛净化设备工程有限公司 | Water pollution monitoring and governing service system and method based on Internet |
| CN109071286A (en) * | 2016-04-08 | 2018-12-21 | 艾森曼欧洲公司 | Method and apparatus for handling the liquid containing cyanide |
| US11667553B2 (en) | 2016-04-08 | 2023-06-06 | Eisenmann Se | Method and system for the treatment of cyanide-containing fluids |
| CN105824302A (en) * | 2016-05-16 | 2016-08-03 | 山东圣文环保科技有限公司 | Controllable sewage discharge monitoring system |
| CN111945817A (en) * | 2020-08-13 | 2020-11-17 | 中国建筑设计研究院有限公司 | Indoor reclaimed water reuse control system and method for public building |
| CN111945817B (en) * | 2020-08-13 | 2021-09-24 | 中国建筑设计研究院有限公司 | Indoor reclaimed water reuse control system and method for public building |
| CN113149219A (en) * | 2021-05-18 | 2021-07-23 | 中国市政工程西北设计研究院有限公司 | Purification treatment system for tail water of sewage plant and construction method thereof |
| CN113149219B (en) * | 2021-05-18 | 2024-09-27 | 中国市政工程西北设计研究院有限公司 | Sewage plant tail water purification treatment system and construction method thereof |
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Effective date of registration: 20160822 Address after: 300140 Tianjin City, Hebei District Wanghai Street No. 185 New Road No. 1 Building 2 layer Patentee after: BOTIAN ENVIRONMENT TECHNOLOGY (TIANJIN) CO.,LTD. Address before: 100028 12A11-12 room, Shougang International Building, No. 60 North Street, Beijing, Xizhimen Patentee before: POTEN ENVIRONMENT GROUP Co.,Ltd. |
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Effective date of registration: 20210401 Address after: 09, 5 / F, 60 Xizhimen North Street, Haidian District, Beijing 100082 Patentee after: POTEN ENVIRONMENT GROUP Co.,Ltd. Address before: 300140 2nd floor, building 1, 185 Xinda Road, wanghailou street, Hebei District, Tianjin Patentee before: BOTIAN ENVIRONMENT TECHNOLOGY (TIANJIN) Co.,Ltd. |
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Granted publication date: 20130605 |