CN202988833U - Membrane treatment device for middle-stage wastewater in papermaking - Google Patents
Membrane treatment device for middle-stage wastewater in papermaking Download PDFInfo
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- CN202988833U CN202988833U CN2012207120956U CN201220712095U CN202988833U CN 202988833 U CN202988833 U CN 202988833U CN 2012207120956 U CN2012207120956 U CN 2012207120956U CN 201220712095 U CN201220712095 U CN 201220712095U CN 202988833 U CN202988833 U CN 202988833U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Activated Sludge Processes (AREA)
Abstract
The utility model relates to a membrane treatment device for middle-stage wastewater in papermaking. The membrane treatment device comprises a biological reaction tank, an inorganic ceramic membrane filtering component, a clear liquid tank, a washing tank, a bidirectional frequency variable pump, an air blower and a screw rod, wherein the biological reaction tank is divided into two parts through a downflow weir; and the inorganic ceramic membrane filtering component is installed into one of the two parts. According to the device, due to adoption of MBR immersed type filtering equipment, the occupied area is reduced, small one-time investment is needed, the process procedures are simple, the operation is convenient, and the automation degree is high; the treatment effect can meet the requirements of water for the papermaking industry; and after the treatment by the device, the COD (Chemical Oxygen Demand) removing rate is higher than 78%; the chroma removing rate is higher than 93%; and the SS (Suspended Substance) removing rate is higher than 95%.
Description
Technical field
The utility model relates to a kind of device, relates in particular to a kind of employing MBR immersion filter plant, and floor space reduces, and one-time investment is few; Technical process is simple, good sewage processing effect be applied to the papermaking midcourse wastewater membrane treatment appts.
Background technology
In sewage disposal, water resources recycles the field, and MBR claims again membrane bioreactor (Membrane Bio-Reactor), is a kind of new type water treatment technology that is combined with biological processing unit by film separation unit.The membrane structure type that adopts is mainly flat sheet membrane and hollow-fibre membrane, can be divided into ultra-filtration technique by membrane pore size.
China's paper-making industry adopts reed, wood pulp etc. to do paper making raw material more.The characteristics of paper-making industrial waste water are that the water yield is large, colourity is high, suspension content is large, organic concentration is high, complicated components, and waste water is difficult to process.In addition, the paper waste stink is heavy, foam is many, and consumes in a large number oxygen in water, and the severe contamination water source brings very big harm for environment and human health.
Papermaking midcourse wastewater refers to the whole waste water except black liquor that produce in the chemical pulping production process, the middle-stage wastewater that effluxes is to extract the waste water that the boiling slurry after black liquor discharges in pulp washing, screening, bleaching and making beating, owing to dealing with improperly the black liquor of spill and leakage also may blending wherein.This part wastewater flow rate is larger, and principal pollutant are the chlorophenols that produces in xylogen and bleaching process.
Along with to the raising of environmental requirement and the growing tension of water resources, though the middle-stage wastewater water quality after processing at present can reach emission standard, but be in the enterprise of variation for production, biochemical treatment may need to extend the biochemical residence time or strengthen dosage for reaching scrubbing effect preferably, thereby causes the increase of working cost; Simultaneously, the most pulp mills of China are take non-wood material (straw pulp) as main, bleach with chlorine bleaching agent, but though middle-stage wastewater standard discharge after second-stage treatment, but the residual colourity in waste water is higher, lignin class material is difficult to biological degradation, and chlorophenols is that the one-level carcinogens is easy to accumulate in vivo, and environment is had potential, far-reaching influence; Paper industry is water heavy polluter and water rich and influential family, and the middle-stage wastewater water yield is large, but Pollutant levels are less than black liquor.Along with the significantly raising of water rate, paper industry water expense and effluent charge also can significantly increase.Therefore, seek after treatment the especially regeneration feasibility of middle-stage wastewater of paper waste, realize that " zero release " of paper waste has obvious realistic meaning and far-reaching significance.
The papermaking wastewater water yield is large, concentration is high, biodegradability is poor, it is low that the acidication that tradition adopts and biochemical process are processed this class papermaking wastewater clearance, particularly COD and chromaticity removing effect are not high, after processing, COD is at 200～350mg/L, colourity does not reach the corresponding standard of country between 80-160 times.
The utility model content
For the problems referred to above, main purpose of the present utility model is to provide a kind of employing MBR immersion filter plant, and floor space reduces, and one-time investment is few; Technical process is simple, good sewage processing effect be applied to the papermaking midcourse wastewater membrane treatment appts.
the utility model solves above-mentioned technical problem by following technical proposals: a kind of papermaking midcourse wastewater membrane treatment appts that is applied to, described device comprises biological reaction tank, the inorganic ceramic membrane filtration module, the clear liquid tank, purge tank, two-way variable frequency pump, gas blower and spiral pump, be provided with the overflow weir that described biological reaction tank is divided into two parts in biological reaction tank, the inorganic ceramic membrane filtration module is arranged in one of them part of above-mentioned two parts, gas blower divides two branches, on aeration tube between branch and biological reaction tank, biological reaction tank intake valve and tensimeter are installed successively, on another branch of gas blower and the aeration tube that is arranged under the inorganic ceramic membrane filtration module, membrane module aeration tube tensimeter and membrane module aeration tube intake valve are installed successively.
Clear liquid pressure tank table, clear liquid pipe liquid-outlet valve, two-way variable frequency pump, clear liquid pipe thermometer and clear liquid tank feed valve are installed between inorganic ceramic membrane filtration module and clear liquid tank successively.
Between purge tank and inorganic ceramic membrane filtration module, purge tank bleeder valve and spiral pump are installed.
Be separately installed with clear liquid tank wash water valve and purge tank wash water valve bottom clear liquid tank and purge tank, two-way variable frequency pump bypass is equipped with two-way variable frequency pump wash water valve.
The part that the inorganic ceramic membrane filtration module has been installed in biological reaction tank also is equipped with a mud discharge line, and described mud discharge line is divided into two, wherein a mud outlet valve is installed on one, and another is equipped with the sludge reflux valve.
The method that the above-mentioned application of installation of a kind of use is processed in the papermaking midcourse wastewater film, described method comprises the steps:
(1), material enters in biological reaction tank, gas blower, biological reaction tank intake valve and membrane module aeration tube inlet open biological reaction tank aeration tube tensimeter and membrane module aeration tube tensimeter are controlled air input and are carried out aeration, airborne oxygen dissolves in sewage, make active sludge intermixture produce aerobic metabolic reaction, aeration not only transmits oxygen and enters in mixed solution, and make mixed solution obtain stirring fully obtaining suspension liquid, make the organism in sewage, oxygen can contact fully with microorganism, reaction, remove the organic chemistry component of solvability and suspension by microbiological deterioration, open two-way variable frequency pump and clear liquid pipe liquid-outlet valve, utilize the negative pressure of its generation by the inorganic ceramic membrane filtration module, microorganism to be held back, the water outlet of the clarification that obtains is stored in the clear liquid tank, recycling preparation,
(2), when the flux in the inorganic ceramic membrane filtration module drops to original flux 80%, adjust two-way variable frequency pump and carry out back flushing;
(3), close clear liquid pipe liquid-outlet valve, open spiral pump and open the purge tank bleeder valve and carry out on-line cleaning or off-line and clean;
(4), when system is out of service, open two-way variable frequency pump wash water valve, clear liquid tank wash water valve and purge tank wash water valve, drain material in system.
Positive progressive effect of the present utility model is: the utility model and the existing similar papermaking midcourse wastewater membrane treatment appts that is applied to compare, and the utility model adopts MBR immersion filter plant, and floor space reduces, and one-time investment is few; Technical process is simple, and is easy to operate, and level of automation is high; Treatment effect satisfies the paper industry water, after processing the COD clearance higher than 78%, chroma removal rate higher than 93%, SS clearance higher than 95%.
Description of drawings
Fig. 1 is the structure of the utility model device and the schematic diagram of technical process.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
Fig. 1 is the structure of the utility model device and the schematic diagram of technical process, as shown in Figure 1: the utility model comprises biological reaction tank 1, inorganic ceramic membrane filtration module 2, clear liquid tank 3, purge tank 4, two-way variable frequency pump 5, gas blower 6 and spiral pump 7, be provided with the overflow weir 21 that described biological reaction tank 1 is divided into two parts in biological reaction tank 1, inorganic ceramic membrane filtration module 2 is arranged in one of them part of above-mentioned two parts, 6 minutes two branches of gas blower, on aeration tube between branch and biological reaction tank 1, biological reaction tank intake valve 12 and tensimeter 8 are installed successively, on another branch of gas blower 6 and the aeration tube that is arranged under inorganic ceramic membrane filtration module 2, membrane module aeration tube tensimeter 9 and membrane module aeration tube intake valve 13 are installed successively.
Clear liquid pressure tank table 10, clear liquid pipe liquid-outlet valve 14, two-way variable frequency pump 5, clear liquid pipe thermometer 11 and clear liquid tank feed valve 22 are installed between inorganic ceramic membrane filtration module 2 and clear liquid tank 3 successively.
Purge tank bleeder valve 15 and spiral pump 7 are installed between purge tank 4 and inorganic ceramic membrane filtration module 2.
Clear liquid tank 3 and purge tank 4 bottoms are separately installed with clear liquid tank wash water valve 17 and purge tank wash water valve 20, and two-way variable frequency pump 5 bypasses are equipped with two-way variable frequency pump wash water valve 16.
The interior part that inorganic ceramic membrane filtration module 2 has been installed of biological reaction tank 1 also is equipped with a mud discharge line, and described mud discharge line is divided into two, wherein a mud outlet valve 19 is installed on one, and another is equipped with sludge reflux valve 18.
The method that the above-mentioned application of installation of a kind of use is processed in the papermaking midcourse wastewater film, described method comprises the steps:
(1), material enters in biological reaction tank 1, gas blower 6, biological reaction tank aeration tube tensimeter 8 opened by biological reaction tank intake valve 12 and membrane module aeration tube intake valve 13 and membrane module aeration tube tensimeter 9 control air inputs are carried out aeration, airborne oxygen dissolves in sewage, make active sludge intermixture produce aerobic metabolic reaction, aeration not only transmits oxygen and enters in mixed solution, and make mixed solution obtain stirring fully obtaining suspension liquid, make the organism in sewage, oxygen can contact fully with microorganism, reaction, remove the organic chemistry component of solvability and suspension by microbiological deterioration, open two-way variable frequency pump 5, clear liquid pipe liquid-outlet valve 14 and clear liquid tank feed valve 22, utilize the negative pressure of its generation by inorganic ceramic membrane filtration module 2, microorganism to be held back, the water outlet of the clarification that obtains is stored in clear liquid tank 3, recycling preparation,
(2), when the flux in inorganic ceramic membrane filtration module 2 drops to original flux 80%, adjust two-way variable frequency pump 5 and carry out back flushing;
(3), close clear liquid pipe liquid-outlet valve 14, open spiral pump 7 and open that purge tank bleeder valve 15 carries out on-line cleaning or off-line cleans;
(4), when system is out of service, open two-way variable frequency pump wash water valve 16, clear liquid tank wash water valve 17 and purge tank wash water valve 20, drain material in system.
The below is specific embodiment:
Example 1: papermaking midcourse wastewater treating processes
The most pulp mills of China are take non-wood material (straw pulp) as main, bleach with chlorine bleaching agent, but though middle-stage wastewater standard discharge after second-stage treatment, but the residual colourity in waste water is higher, lignin class material is difficult to biological degradation, and chlorophenols is that the one-level carcinogens is easy to accumulate in vivo, and environment is had potential, far-reaching influence.Wherein contain SS=1500mg/L, COD
Cr=2000mg/L, BOD
5=700mg/L, after adopting the MBR membrane bioreactor to process, clearance all reaches more than 90%.
Filtration procedure:
Material enters in biological reaction tank 1, biological reaction tank aeration tube tensimeter 8 opened by gas blower 6, biological reaction tank intake valve 12 and membrane module aeration tube intake valve 13 and membrane module aeration tube tensimeter 9 control air inputs are carried out aeration, remove the organic chemistry component of solvability and suspension by microbiological deterioration, open two-way variable frequency pump 5, clear liquid pipe liquid-outlet valve 14 and clear liquid tank feed valve 22, utilize the negative pressure of its generation by inorganic ceramic membrane filtration module 2, microorganism to be held back, the water outlet of the clarification that obtains is stored in clear liquid tank 3, recycling preparation.
Backwash process:
When flux drops to original flux 80%, adjust two-way variable frequency pump 5 and carry out back flushing.
Cleaning process
Close clear liquid pipe liquid-outlet valve 14, open spiral pump 7 and open purge tank bleeder valve 15 and carry out on-line cleaning or off-line cleaning.
When system is out of service, open two-way variable frequency pump wash water valve 16, clear liquid tank wash water valve 17 and purge tank wash water valve 20, drain material in system.
The utility model adopts MBR immersion filter plant, and floor space reduces, and one-time investment is few; Technical process is simple, and is easy to operate, and level of automation is high; Treatment effect satisfies the paper industry water, after processing the COD clearance higher than 78%, chroma removal rate higher than 93%, SS clearance higher than 95%.
Above demonstration and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification sheets just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. one kind is applied to the papermaking midcourse wastewater membrane treatment appts, it is characterized in that: described device comprises biological reaction tank, the inorganic ceramic membrane filtration module, the clear liquid tank, purge tank, two-way variable frequency pump, gas blower and spiral pump, be provided with the overflow weir that described biological reaction tank is divided into two parts in biological reaction tank, the inorganic ceramic membrane filtration module is arranged in one of them part of above-mentioned two parts, gas blower divides two branches, on aeration tube between branch and biological reaction tank, biological reaction tank intake valve and tensimeter are installed successively, on another branch of gas blower and the aeration tube that is arranged under the inorganic ceramic membrane filtration module, membrane module aeration tube tensimeter and membrane module aeration tube intake valve are installed successively,
Clear liquid pressure tank table, clear liquid pipe liquid-outlet valve, two-way variable frequency pump, clear liquid pipe thermometer and clear liquid tank feed valve are installed between inorganic ceramic membrane filtration module and clear liquid tank successively,
Between purge tank and inorganic ceramic membrane filtration module, purge tank bleeder valve and spiral pump are installed,
Be separately installed with clear liquid tank wash water valve and purge tank wash water valve bottom clear liquid tank and purge tank, two-way variable frequency pump bypass is equipped with two-way variable frequency pump wash water valve,
The part that the inorganic ceramic membrane filtration module has been installed in biological reaction tank also is equipped with a mud discharge line, and described mud discharge line is divided into two, wherein a mud outlet valve is installed on one, and another is equipped with the sludge reflux valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207120956U CN202988833U (en) | 2012-12-20 | 2012-12-20 | Membrane treatment device for middle-stage wastewater in papermaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207120956U CN202988833U (en) | 2012-12-20 | 2012-12-20 | Membrane treatment device for middle-stage wastewater in papermaking |
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| Publication Number | Publication Date |
|---|---|
| CN202988833U true CN202988833U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012207120956U Expired - Lifetime CN202988833U (en) | 2012-12-20 | 2012-12-20 | Membrane treatment device for middle-stage wastewater in papermaking |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103880164A (en) * | 2012-12-20 | 2014-06-25 | 上海安赐机械设备有限公司 | Membrane processing apparatus and processing method for papermaking middle-stage wastewater |
-
2012
- 2012-12-20 CN CN2012207120956U patent/CN202988833U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103880164A (en) * | 2012-12-20 | 2014-06-25 | 上海安赐机械设备有限公司 | Membrane processing apparatus and processing method for papermaking middle-stage wastewater |
| CN103880164B (en) * | 2012-12-20 | 2015-08-05 | 上海安赐机械设备有限公司 | One is applied to papermaking midcourse wastewater membrane treatment appts and treatment process |
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Legal Events
| Date | Code | Title | Description |
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| 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: 201201 Shanghai, Pudong New Area Jin Tang Road, No. 2, block B, 145 Patentee after: SHANGHAI ANHORN ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 201201 Shanghai, Pudong New Area Jin Tang Road, No. 2, block B, 145 Patentee before: SHANGHAI ANHORN MECHANICAL EQUIPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180816 Address after: 238200, Zhengpu port New District, Ma'anshan, Anhui, with standardized plants 9 and 10. Co-patentee after: SHANGHAI ANHORN ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Patentee after: Anhui Annie Environmental Protection Technology Co.,Ltd. Address before: 201201 B 2, 145 Jin Tang Road, Pudong New Area, Shanghai. Patentee before: SHANGHAI ANHORN ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |