CN203999004U - Industrial Wastewater Treatment integrated control - Google Patents
Industrial Wastewater Treatment integrated control Download PDFInfo
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- CN203999004U CN203999004U CN201420348729.3U CN201420348729U CN203999004U CN 203999004 U CN203999004 U CN 203999004U CN 201420348729 U CN201420348729 U CN 201420348729U CN 203999004 U CN203999004 U CN 203999004U
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- Prior art keywords
- equalizing tank
- wastewater treatment
- control valve
- industrial wastewater
- integrated control
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 36
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 29
- 239000002351 wastewater Substances 0.000 claims abstract description 69
- 238000010992 reflux Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 238000005273 aeration Methods 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 25
- 230000001105 regulatory effect Effects 0.000 abstract description 7
- 230000009711 regulatory function Effects 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 7
- 239000003002 pH adjusting agent Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000003750 conditioning effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- -1 turn on agitator Substances 0.000 description 1
Landscapes
- Activated Sludge Processes (AREA)
- Biological Treatment Of Waste Water (AREA)
- Physical Water Treatments (AREA)
Abstract
The utility model discloses a kind of Industrial Wastewater Treatment integrated control, be intended to solve the technical problem that existing waste water setting device regulatory function is single, level of automation is low, regulating effect is poor.This regulation system comprises equalizing tank, pH regulator unit and reflux unit, pH regulator unit comprises that online pH detects meter and feeding device, feeding device comprises loader and header tank, loader is connected with the opening for feed of header tank, in header tank, be provided with agitator, bottom at header tank is provided with tremie pipe, on described tremie pipe, is provided with blanking control valve; Reflux unit comprises the return line being connected with described equalizing tank, is provided with recycle control valve and under meter on described return line.The utility model level of automation is high, easy and simple to handle, is not vulnerable to season, climatic influences, applied widely, input cost is low, and regulating effect is good, is conducive to reduce the cost for wastewater treatment of enterprise.
Description
Technical field
The utility model relates to technology for treating industrial waste water field, is specifically related to a kind of Industrial Wastewater Treatment integrated control.
Background technology
Crystal silicon chip cutting mortar needs to carry out solid-liquid separation and chemical treatment in process of production, comprise the processes such as pickling, alkali cleaning, waterpower classification of sedimentation, extraction, distillation, can produce a large amount of trade effluents therebetween, this trade effluent contains residual acid and residual alkali composition and macromolecule organic cutting liquid residual component, so this waste water tool pH value fluctuation range large (pH value is between 2 ~ 12), COD(chemical oxygen demand (COD)) high (COD value is the tallest and the biggest in 10000 mgO for content
2/ L) feature, makes this water body highly polluted, must effectively process it, makes it reach corresponding discharging standards, avoids contaminate environment.Conventionally adopt the method for biochemical treatment, this type of high COD content waste water is carried out to harmless treatment, the effects such as the oxidation by biochemical bacterium, decomposition, reduce the COD content of water body, make its qualified discharge.And biochemical treatment process requires comparatively harshness to the flow condition of water body, therefore waste water is being carried out before biochemical treatment, must regulate all kinds of indexs of pending waste water, make its water inlet requirement that reaches biochemical treatment, thereby guarantee normally carrying out of Industrial Wastewater Treatment.Traditional wastewater treatment setting device is comparatively single, only can regulate the single index of waste water, have that level of automation is low, labour intensity is large, regulating effect is poor, be subject to the shortcoming that seasonal climate affects greatly, waste water treatment efficiency is low, had a strong impact on the follow-up Biochemical Treatment of waste water.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of have multiple regulatory function, level of automation is high, comprehensive adjustment is effective Industrial Wastewater Treatment integrated control.
For solving the problems of the technologies described above, the utility model Industrial Wastewater Treatment integrated control, comprise equalizing tank, pH regulator unit and reflux unit, on described equalizing tank, be provided with wastewater inlet pipe and wastewater effluent pipe, on described wastewater inlet pipe and wastewater effluent pipe, be respectively equipped with water inlet control valve and outlet water control valve, in described equalizing tank, be provided with liquidometer;
Described pH regulator unit comprises that online pH detects meter and feeding device, described online pH detects meter and is arranged in described equalizing tank, described feeding device comprises loader and header tank, described loader is connected with the opening for feed of described header tank, in described header tank, be provided with agitator, bottom at described header tank is provided with tremie pipe, and the outlet of described tremie pipe extends in described equalizing tank, on described tremie pipe, is provided with blanking control valve;
Described reflux unit comprises the return line being connected with described equalizing tank, is provided with recycle control valve and under meter on described return line.
In technique scheme, liquidometer can be realized the Real-Time Monitoring to waste water liquid level in equalizing tank, and by water inlet control valve and outlet water control valve, the water yield of waste water in equalizing tank is adjusted.By described pH regulator unit, can add suitable pH adjusting agent according to the pH value of waste water in equalizing tank, the pH value of waste water is adjusted to required scope; This feeding device can be realized the automatic interpolation of pH adjusting agent, the addition of automatic regulation and control pH adjusting agent.By described reflux unit, recirculation water can be added in equalizing tank, the COD concentration of waste water in equalizing tank is regulated, its COD concentration is remained in required numerical range, and by described recycle control valve and under meter, control the addition of recirculation water.Recirculation water can be used tap water, also availablely reaches trade effluent wastewater discharge standard, after treatment.
Preferably, described Industrial Wastewater Treatment integrated control also comprises heating unit, described heating unit comprises external steam pipeline and heating coil, described heating coil is arranged in described equalizing tank, and be connected with described external steam pipeline, on described external steam pipeline, be provided with steam flow valve and tensimeter.
Adopt above-mentioned heating unit, can when temperature is lower, to the waste water in equalizing tank, heat, waste water is remained on temperature required, avoid Yin Wendu too low and affect the treatment effect of waste water; The mode that adopts vapour line and heating coil to heat, can make that rate of heating is faster, heats is better.
Preferably, in described equalizing tank bottom, be provided with aeration tube.By aeration tube, in equalizing tank, carry out aeration, can accelerate mixing and the heat conduction velocity of each material in the interior waste water of pond body, improve the comprehensive adjustment efficiency of waste water.
Preferably, described aeration tube is micropore aeration pipe.Diaphragm aerating tube-type micropore pipe more preferably, it adopts elastomeric material, has small Self-closed hole on film.During work, the micropore of aeration tube can automatically open under air pressure, and air just enters and in pond, carries out oxygenation; If pressure disappears, the micropore of aeration tube will be automatically closed, and anti-sealing pours in down a chimney in inflow micropore, makes aeration better effects if.
Preferably, the water outlet at described wastewater effluent pipe is provided with impeller pump.By impeller pump, can regulate the water speed that goes out of equalizing tank waste water, the water yield that realizes automatization regulates.
Preferably, in described equalizing tank, be provided with temperature sensor.By this temperature sensor, can monitor in real time the wastewater temperature in equalizing tank, be convenient to carry out at any time the adjustment of wastewater temperature.
Preferably, described Industrial Wastewater Treatment integrated control also comprises PLC controller, the input terminus of described PLC controller detects meter with described liquidometer, online pH respectively and is connected with temperature sensor, and the output terminal of described PLC controller is connected with described water inlet control valve, outlet water control valve, blanking control valve, recycle control valve, steam flow valve, impeller pump respectively.The automatization that adopts PLC controller can realize the utility model Industrial Wastewater Treatment integrated control is controlled, and makes the operation of this system easier.
The Industrial Wastewater Treatment comprehensive adjustment method of using above-mentioned Industrial Wastewater Treatment integrated control, comprises the following steps:
(1) pH value regulates: pH value conditioning agent is joined in header tank by loader, and according to the pH value of waste water in the equalizing tank of online pH detection meter detection, determine the dosage of pH value conditioning agent, required pH value conditioning agent is joined in equalizing tank by tremie pipe;
(2) COD concentration adjustment: control the add-on of recirculation water by the recycle control valve on return line and under meter, by COD concentration adjustment to 1000～4000 mgO of waste water in equalizing tank body
2/ L;
(3) temperature regulates: the waste water in equalizing tank is heated, make wastewater temperature remain on 20～40 ℃.
Preferably, the described type of heating of step (3) is: adopt the mode that heating coil is installed in equalizing tank to heat, pass into the vapor pressure >=0.2MPa in heating coil.
Preferably, also comprise step (4) aeration: by the mode of aeration tube is installed in equalizing tank bottom, to aeration in equalizing tank, aeration pressure is 1～5MPa.
The beneficial effects of the utility model are:
1. by this system, can realize the adjusting of the adjusting of pH value, COD concentration adjustment, water temperature adjusting and the Inlet and outlet water water yield of waste water, make the indices of trade effluent meet the requirement of carrying out follow-up biochemical treatment, by a system, can realize the adjusting of many index simultaneously, overcome the shortcoming that each index need regulate through a plurality of programs, can simplify wastewater treatment program, improve waste water treatment efficiency;
2. this system automation degree is high, easy and simple to handle, is conducive to reduce workman's labour intensity, increases work efficiency;
3. this system is not vulnerable to season, climatic influences, applied widely, input cost is low, and regulating effect is good, is conducive to reduce the cost for wastewater treatment of enterprise.
4. this system easy handling, regulating effect are good, are conducive to follow-up the carrying out that waste water is carried out to biochemical treatment, reach better water treatment effect, can improve on the whole trade effluent processing efficiency, reduce cost for wastewater treatment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model Industrial Wastewater Treatment integrated control.
Fig. 2 is the distribution plan of heating coil and aeration tube in equalizing tank in the utility model.
Wherein, 1 is equalizing tank; 2 is wastewater inlet pipe; 3 is wastewater effluent pipe; 4 is water inlet control valve; 5 is outlet water control valve; 6 is liquidometer; 7 is that online pH detects meter; 8 is loader; 9 is header tank; 10 is agitator; 11 is tremie pipe; 12 is blanking control valve; 13 is return line; 14 is recycle control valve; 15 is under meter; 16 external steam pipelines; 17 heating coils; 18 steam flow valves; 19 is tensimeter; 20 is aeration tube; 21 is impeller pump.22 is temperature sensor.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described, but following examples are just used for describing in detail the utility model, and limit never in any form scope of the present utility model.
Embodiment 1: a kind of Industrial Wastewater Treatment integrated control, as illustrated in figs. 1 and 2, comprise equalizing tank 1, pH regulator unit and reflux unit, on equalizing tank 1, be provided with wastewater inlet pipe 2 and wastewater effluent pipe 3, on wastewater inlet pipe 2 and wastewater effluent pipe 3, be respectively equipped with water inlet control valve 4 and outlet water control valve 5, in described equalizing tank 1, be provided with liquidometer 6.PH regulator unit comprises that online pH detects meter 7 and feeding device, online pH detects meter 7 and is arranged in described equalizing tank 1, feeding device comprises loader 8 and header tank 9, loader 8 is connected with the opening for feed of header tank 9, in header tank 9, be provided with agitator 10, in the bottom of header tank 9, be provided with tremie pipe 11, the outlet of tremie pipe 11 extends in described equalizing tank 1, is provided with blanking control valve 12 on tremie pipe 11.Reflux unit comprises the return line 13 being connected with described equalizing tank, is provided with recycle control valve 14 and under meter 15 on return line 13.Water outlet at wastewater effluent pipe 3 is provided with impeller pump 21, is provided with temperature sensor 22 in equalizing tank 1.
Embodiment 2: be with the difference of embodiment 1: this Industrial Wastewater Treatment integrated control also comprises heating unit, heating unit comprises external steam pipeline 16 and heating coil 17, heating coil 17 is arranged in equalizing tank 1, and be connected with external steam pipeline 16, externally vapour line 16 is provided with steam flow valve 18 and tensimeter 19.
Embodiment 3: be with the difference of embodiment 2: in equalizing tank 1 bottom, be provided with aeration tube 20, this aeration tube 20 is diaphragm aerating tube-type micropore pipe.
Embodiment 4: be with the difference of embodiment 3: this Industrial Wastewater Treatment integrated control also comprises PLC device, the input terminus of PLC controller detects meter 7 with liquidometer 6, online pH respectively and is connected with temperature sensor 22, and the output terminal of PLC controller is connected with water inlet control valve 4, outlet water control valve 5, blanking control valve 12, recycle control valve 14, steam flow valve 18, impeller pump 21 respectively.
The Industrial Wastewater Treatment comprehensive adjustment method that adopts the Industrial Wastewater Treatment integrated control in embodiment 4, comprises the following steps:
(1) pH value regulates: pH value conditioning agent is joined in header tank 9 by loader 8, and the pH value of the equalizing tank 1 interior waste water detecting according to online pH detection meter, determine the dosage of pH value conditioning agent, required pH value conditioning agent is joined in equalizing tank 1 by tremie pipe 11; According to the pH value of equalizing tank 1 interior waste water, select one or more acid or liquid caustic soda, if sulfuric acid, liquid caustic soda, Iron sulfuret, urea etc. are as pH adjusting agent, as what select is the mixture of multiple acid or liquid caustic soda, turn on agitator, mixture in header tank is stirred, then joined in equalizing tank 1.
(2) COD concentration adjustment: control the add-on of recirculation water by the recycle control valve 14 on return line 13 and under meter 15, by COD concentration adjustment to 1000～4000 mgO of waste water in equalizing tank 1 body
2/ L.Recirculation water can be used tap water, also availablely reaches trade effluent wastewater discharge standard, after treatment, recycles the waste water after processing, can saving water resource, further reduce cost for wastewater treatment.
(3) temperature regulates: use the waste water in external steam pipeline 16 and 17 pairs of equalizing tanks 1 of heating coil to heat, make wastewater temperature remain on 20～40 ℃, the vapor pressure >=0.2MPa in external steam pipeline 17.
(4) aeration: by the aeration tube of installing in equalizing tank bottom, to aeration in equalizing tank, aeration pressure is 1～5MPa.
In above embodiment, related plant and instrument if no special instructions, is routine instrument device; Related industrial raw material if no special instructions, is commercially available conventional industrial raw material.
The specific works mode of the utility model Industrial Wastewater Treatment integrated control is as follows:
Pending trade effluent is introduced in equalizing tank 1 by wastewater inlet pipe 2, can be passed through the flooding quantity of water inlet control valve 5 condition waste water.Online pH detects the pH value that meter 7 detects waste water, according to this result, judge whether to carry out pH regulator, if needed, select suitable acid or liquid caustic soda as pH adjusting agent, by loader 8, join in header tank 9, if the pH adjusting agent of selecting is mixture, turn on agitator 10 is stirred, then via tremie pipe 11, join in equalizing tank 1, by blanking control valve, regulate the amount of the pH adjusting agent adding, the detected result that detects meter 7 according to online pH, can regulate at any time to the pH value of equalizing tank 1 interior waste water.
For making the concentration of COD in the waste water in equalizing tank reach the requirement of follow-up biochemical treatment, need in equalizing tank 1, add recirculation water, recirculation water is introduced in equalizing tank 1 by return line 13, the flooding quantity that regulates recirculation water by recycle control valve 14, under meter 15 is used for monitoring the water yield of the recirculation water adding.Temperature sensor 22 can Real-Time Monitoring equalizing tank 1 interior waste water temperature, when wastewater temperature is lower, open external steam pipeline 16, steam is entered in heating tube dish 17, by the waste water in 17 pairs of equalizing tanks 1 of heating tube dish, heat, avoid, because wastewater temperature affects follow-up treatment effect compared with low, by the flow of 18 pairs of steam of steam flow valve, controlling, and then the Heating temperature of adjusting waste water, tensimeter is used for monitoring the pressure of external steam pipeline 16 interior steam.
Use the aeration tube 20 of equalizing tank 1 bottom to carry out aeration in equalizing tank 1, can accelerate mixing and the heat conduction velocity of each material in the interior waste water of pond body, improve speed and the rate of heating of the adjusting of pH value, COD concentration adjustment, and then its high comprehensive adjustment efficiency.Through above-mentioned comprehensive adjustment process, the indices of equalizing tank 1 interior waste water is adjusted to after the desired standard of follow-up biochemical treatment, by wastewater effluent pipe by the discharge of wastewater after regulating in the follow-up device that carries out biochemical treatment, can carry out follow-up wastewater treatment, by outlet water control valve 5 and impeller pump 21, can and go out water speed to the aquifer yield of waste water and regulate.By the water yield of liquidometer 6 Real-Time Monitoring equalizing tank 1 interior waste water, can realize the accurate control to the interior waste water water yield of equalizing tank 1, water inlet or water outlet in good time, can prevent the unrestrained pond of the interior waste water of equalizing tank 1 and the damage equipment of finding time.
In conjunction with the accompanying drawings and embodiments the utility model is described in detail above, but, person of ordinary skill in the field can understand, do not departing under the prerequisite of the utility model aim, can also each design parameter in above-described embodiment be changed, form a plurality of specific embodiments, be common variation range of the present utility model, at this, describe in detail no longer one by one.
Claims (7)
1. an Industrial Wastewater Treatment integrated control, it is characterized in that, comprise equalizing tank, pH regulator unit and reflux unit, on described equalizing tank, be provided with wastewater inlet pipe and wastewater effluent pipe, on described wastewater inlet pipe and wastewater effluent pipe, be respectively equipped with water inlet control valve and outlet water control valve, in described equalizing tank, be provided with liquidometer;
Described pH regulator unit comprises that online pH detects meter and feeding device, described online pH detects meter and is arranged in described equalizing tank, described feeding device comprises loader and header tank, described loader is connected with the opening for feed of described header tank, in described header tank, be provided with agitator, bottom at described header tank is provided with tremie pipe, and the outlet of described tremie pipe extends in described equalizing tank, on described tremie pipe, is provided with blanking control valve;
Described reflux unit comprises the return line being connected with described equalizing tank, is provided with recycle control valve and under meter on described return line.
2. Industrial Wastewater Treatment integrated control according to claim 1, it is characterized in that, described Industrial Wastewater Treatment integrated control also comprises heating unit, described heating unit comprises external steam pipeline and heating coil, described heating coil is arranged in described equalizing tank, and be connected with described external steam pipeline, on described external steam pipeline, be provided with steam flow valve and tensimeter.
3. Industrial Wastewater Treatment integrated control according to claim 2, is characterized in that, in described equalizing tank bottom, is provided with aeration tube.
4. Industrial Wastewater Treatment integrated control according to claim 3, is characterized in that, described aeration tube is micropore aeration pipe.
5. Industrial Wastewater Treatment integrated control according to claim 2, is characterized in that, at the water outlet of described wastewater effluent pipe, is provided with impeller pump.
6. Industrial Wastewater Treatment integrated control according to claim 5, is characterized in that, in described equalizing tank, is provided with temperature sensor.
7. Industrial Wastewater Treatment integrated control according to claim 6, it is characterized in that, described Industrial Wastewater Treatment integrated control also comprises PLC controller, the input terminus of described PLC controller detects meter with described liquidometer, online pH respectively and is connected with temperature sensor, and the output terminal of described PLC controller is connected with described water inlet control valve, outlet water control valve, blanking control valve, recycle control valve, steam flow valve, impeller pump respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348729.3U CN203999004U (en) | 2014-06-27 | 2014-06-27 | Industrial Wastewater Treatment integrated control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348729.3U CN203999004U (en) | 2014-06-27 | 2014-06-27 | Industrial Wastewater Treatment integrated control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203999004U true CN203999004U (en) | 2014-12-10 |
Family
ID=52039035
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420348729.3U Expired - Fee Related CN203999004U (en) | 2014-06-27 | 2014-06-27 | Industrial Wastewater Treatment integrated control |
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| CN (1) | CN203999004U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817157A (en) * | 2015-05-14 | 2015-08-05 | 四川润雅环境工程有限公司 | Chemical wastewater pretreatment method and sequencing-batch alkaline hydrolysis reactor |
| CN114163070A (en) * | 2021-11-18 | 2022-03-11 | 南方创业（天津）科技发展有限公司 | Multi-stage AO + MBBR integrated and modular sewage treatment device and treatment process thereof |
-
2014
- 2014-06-27 CN CN201420348729.3U patent/CN203999004U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817157A (en) * | 2015-05-14 | 2015-08-05 | 四川润雅环境工程有限公司 | Chemical wastewater pretreatment method and sequencing-batch alkaline hydrolysis reactor |
| CN114163070A (en) * | 2021-11-18 | 2022-03-11 | 南方创业（天津）科技发展有限公司 | Multi-stage AO + MBBR integrated and modular sewage treatment device and treatment process thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Kaifeng City yuwangtai District 475000 Henan Fine Chemical Industry Park Patentee after: HENAN XINDAXIN MATERIALS CO., LTD. Address before: Kaifeng City yuwangtai District 475000 Henan Fine Chemical Industry Park Patentee before: Henan Xindaxin Materials Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20190627 |
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| CF01 | Termination of patent right due to non-payment of annual fee |