CN109081452B - Sequencing batch sewage treatment device and process with immobilized carrier biological membrane and activated sludge coupled - Google Patents
Sequencing batch sewage treatment device and process with immobilized carrier biological membrane and activated sludge coupled Download PDFInfo
- Publication number
- CN109081452B CN109081452B CN201810938176.XA CN201810938176A CN109081452B CN 109081452 B CN109081452 B CN 109081452B CN 201810938176 A CN201810938176 A CN 201810938176A CN 109081452 B CN109081452 B CN 109081452B
- Authority
- CN
- China
- Prior art keywords
- aeration
- sewage treatment
- reaction device
- stirring
- reaction
- 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.)
- Active
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 83
- 239000010802 sludge Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 title claims abstract description 28
- 238000012163 sequencing technique Methods 0.000 title claims abstract description 19
- 239000012528 membrane Substances 0.000 title claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000006243 chemical reaction Methods 0.000 claims abstract description 59
- 238000005273 aeration Methods 0.000 claims abstract description 58
- 238000003756 stirring Methods 0.000 claims abstract description 52
- 238000010992 reflux Methods 0.000 claims abstract description 33
- 239000000945 filler Substances 0.000 claims abstract description 17
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 239000011259 mixed solution Substances 0.000 claims abstract description 3
- 239000006228 supernatant Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- 239000011574 phosphorus Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 6
- 231100000719 pollutant Toxicity 0.000 abstract description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 8
- 244000005700 microbiome Species 0.000 description 7
- 241001465754 Metazoa Species 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 208000014451 palmoplantar keratoderma and congenital alopecia 2 Diseases 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Microbiology (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Inorganic Chemistry (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a sequencing batch sewage treatment device and a process for coupling a fixed carrier biological film and activated sludge, wherein the sewage treatment device comprises a reaction device, a water inlet device and a dosing device, and the water inlet device and the dosing device are respectively connected with the reaction device through pipelines; the side surface of the reaction device is sequentially provided with an overflow port, a water outlet and a mud outlet from top to bottom, and a reflux device for refluxing the mud-water mixed solution at the bottom of the reaction device to the top is also arranged; the inside of the reaction device is sequentially provided with carrier filler, a stirring device and an aeration device from top to bottom; the carrier filler is fixed in the area above the water outlet and below the overflow port of the reaction device; the aeration device is fixed on the bottom surface of the reaction device. The sewage treatment device and the process can lead the water quality index of the effluent to reach the special emission limit value of pollutant emission standard (solicited opinion manuscript) of urban sewage treatment plant, the ammonia nitrogen concentration of the effluent is less than 0.5mg/L, and the total nitrogen concentration is less than 10mg/L.
Description
Technical Field
The invention relates to a sequencing batch sewage treatment device and a sequencing batch sewage treatment process by coupling a fixed carrier biological membrane with activated sludge, and belongs to the technical field of sewage treatment.
Background
At present, most urban sewage treatment plants in China adopt A 2 O process, inversion A 2 the/O process and the oxidation ditch process are used for synchronous denitrification and dephosphorization of sewage, and SBR process, CASS process, CAST process, UNITANK process and UNITANK deformation process are also few.
The following disadvantages are common in the actual operation of the process:
1) The output of excess sludge is large, and the treatment and disposal are difficult: the excess sludge of the urban sewage treatment plant has high yield, and the excess sludge contains a large amount of harmful substances such as refractory organic pollutants, heavy metals, pathogenic microorganisms and the like, so that the treatment difficulty is high, the cost is high, the treatment cost generally accounts for 20-50% of the total sewage treatment cost, and the maximum treatment cost can even reach 70%. At present, the treatment method of the excess sludge mainly comprises the following 3 steps: incineration after dehydration, agricultural utilization and landfill. The cost of sludge incineration is too high, and the comprehensive cost of incineration disposal of 1 ton of wet sludge with the water content of 80% is about 600 yuan. Because the residual sludge contains heavy metals, the agricultural application has potential safety hazards. At present, most of excess sludge is treated in a landfill mode, and although the cost of the sludge landfill is low, heavy metals, toxic organic matters and the like in the excess sludge are easily dissolved out, so that soil, underground water and the like can be polluted, and further a new environmental pollution problem is caused;
2) It is difficult to adapt to the ever increasing emission standards: at present, relevant national departments are researching and revising pollutant emission standards of urban sewage treatment plants (GB 18918-2002), issuing solicitation opinion manuscripts and increasing special emission limit values, wherein the special emission limit values are required to be implemented in regions with high homeland development density, weak environment bearing capacity, small environment capacity, fragile ecological environment or easy occurrence of serious environmental pollution problems, and TN values of effluent from sewage treatment plants are required to be less than or equal to 10mg/L in regions with prominent water eutrophication problems. However, TN values of effluent of a plurality of sewage treatment plants executing the first-level A discharge standard in China are mostly above 10mg/L, water eutrophication is very easy to occur in certain areas, and standard improvement is urgently needed. At present, the conventional activated sludge process is difficult to meet the requirement of deep denitrification (TN value of effluent is less than or equal to 10 mg/L), and three-stage process treatment is added, so that the process is limited by sites, investment and the like, and the upgrading and reconstruction are difficult to implement.
Therefore, there is a need to develop an urban sewage treatment device and treatment process with small excess sludge yield, low running cost and small occupied area.
Disclosure of Invention
The invention aims to provide a sequencing batch sewage treatment device and a sequencing batch sewage treatment process by coupling a fixed carrier biological membrane with activated sludge.
The technical scheme adopted by the invention is as follows:
the sequencing batch sewage treatment device comprises a reaction device, a water inlet device and a dosing device, wherein the water inlet device and the dosing device are respectively connected with the reaction device through pipelines; the side surface of the reaction device is sequentially provided with an overflow port, a water outlet and a mud outlet from top to bottom, and a reflux device for refluxing the mud-water mixed solution at the bottom of the reaction device to the top is also arranged; the inside of the reaction device is sequentially provided with carrier filler, a stirring device and an aeration device from top to bottom; the carrier filler is fixed in the area above the water outlet and below the overflow port of the reaction device; the aeration device is fixed on the bottom surface of the reaction device.
The carrier filler is attached with a biological film, and the reaction device is internally grown with activated sludge.
The filling ratio of the carrier filler in the reaction device is 20% -70%.
The air-water ratio of the aeration device during aeration is (2-8): 1.
the sewage treatment device is used for treating sewage and comprises the following steps:
1) The sewage passes through a grid and a grit chamber, and then the sewage is filled into a reaction device by a water inlet device;
2) Starting a stirring device and a reflux device to perform anaerobic stirring;
3) The stirring device and the reflux device are closed, the aeration device is opened, and aerobic aeration is carried out;
4) Closing the aeration device, starting the stirring device and the reflux device, and performing anoxic stirring;
5) Starting an aeration device, starting a dosing device, adding polyaluminium chloride, and removing phosphorus;
6) Closing the stirring device, the reflux device and the aeration device, standing for precipitation, and then opening a water outlet valve to discharge supernatant;
7) Repeating the operations of the steps 1) to 6) until the concentration of the suspended sludge in the reaction device exceeds a limit value, starting the stirring device and the aeration device, and then starting a sludge discharge port valve to discharge part of the sludge-water mixed liquid;
8) Repeating the operations of steps 1) to 7).
And 2) the anaerobic stirring time is 20-60 min.
The time of the aerobic aeration in the step 3) is 1-4 h, and the concentration of the dissolved oxygen in the sewage after the aeration is finished is 2-5 mg/L.
And step 4), the anoxic stirring time is 1-4 h.
The addition amount of the polyaluminum chloride in the step 5) is 4-30 mg/L.
The volume of the supernatant discharged in the step 6) accounts for 25% -70% of the effective volume of the reaction device.
The volume of the muddy water mixture discharged in the step 7) accounts for 20% -60% of the total volume of the muddy water mixture in the reaction device.
The principle of the invention is as follows: a large number of biological films grow on the carrier filler, a large number of microorganisms and micro animals grow in the biological films, meanwhile, a large number of activated sludge is contained in the sewage, a large number of microorganisms and micro animals grow in the activated sludge, the types of the microorganisms and the micro animals in the biological films and the activated sludge in the water are distributed differently, and the advanced treatment of the sewage can be realized through the synergistic effect of the microorganisms and the micro animals, namely the coupling effect of the biological films and the activated sludge, so that the effluent reaches the class IV standard of surface water, namely the COD of the effluent is less than 30mg/L, the ammonia nitrogen is less than 1.5mg/L, the total nitrogen is less than 10mg/L, and the residual sludge can be reduced by more than 30%.
The beneficial effects of the invention are as follows: the sequencing batch immobilized carrier biological membrane and activated sludge coupled sewage treatment device and the process can enable the effluent quality index to reach the special discharge limit value of pollutant discharge standard (solicited opinion manuscript) of urban sewage treatment plant, and the ammonia nitrogen concentration of the effluent is less than 0.5mg/L and the total nitrogen concentration is less than 10mg/L.
1) The sewage treatment device has a carrier with larger specific surface area, stable denitrifying microorganism colony and higher biomass, can form a stable food chain of colony-protozoa-metazoan, can realize residual sludge reduction based on the predation action of micro animals, can realize and strengthen the biological decoupling action based on the in-situ sludge reduction principle of biological decoupling by changing an oxygenation mode, further obtains better sludge reduction effect, has obviously lower residual sludge yield than the traditional activated sludge method, can relieve the treatment pressure of residual sludge and reduce the treatment cost of residual sludge;
2) The oxygen concentration gradient exists in the biomembrane formed by the carrier filler in the sewage treatment device, which is beneficial to the growth and propagation of different types of microorganisms and micro animals and promotes the realization of synchronous nitrification and denitrification processes. Meanwhile, as the total amount of organisms in the coupling process is large, the microorganism distribution is reasonable, and the concentration of dissolved oxygen in the anoxic stage is fast reduced, the coupling process has better deep denitrification capability. In addition, by changing the aeration mode and the water inlet mode, excessive consumption of carbon sources in the system in the aerobic stage can be avoided, the problem of insufficient denitrification carbon sources in the anoxic stage is solved, and a better deep denitrification effect can be obtained;
3) The sewage treatment process is a secondary advanced treatment process, and can meet the standard improvement and transformation requirements of sewage treatment plants higher than the first-level A standard;
4) The sewage treatment process has the characteristics of less process equipment, large single-batch processing water quantity, flexible and adjustable process parameters, small occupied area, low energy consumption and the like, and urban sewage plants or small sewage treatment stations can reduce the running cost, save the occupied area and ensure that the yielding water stably reaches the standard by adopting the process.
Drawings
FIG. 1 is a schematic diagram of a sequencing batch sewage treatment device coupled with an immobilized carrier biological membrane and activated sludge.
The attached drawings are used for identifying and describing: 10. a reaction device; 20. a water inlet device; 30. a dosing device; 101. a carrier filler; 102. a stirring device; 103. an aeration device; 104. a reflow device; 105. an overflow port; 106. a water outlet; 107. a mud discharging port.
Detailed Description
As shown in fig. 1, the sequencing batch sewage treatment device with the fixed carrier biological membrane and the activated sludge coupled comprises a reaction device (10), a water inlet device (20) and a dosing device (30), wherein the water inlet device (20) and the dosing device (30) are respectively connected with the reaction device (10) through pipelines; the side surface of the reaction device (10) is sequentially provided with an overflow port (105), a water outlet (106) and a mud outlet (107) from top to bottom, and a reflux device (104) for refluxing the mud-water mixed liquid at the bottom of the reaction device (10) to the top is also arranged; the inside of the reaction device (10) is sequentially provided with a carrier filler (101), a stirring device (102) and an aeration device (103) from top to bottom; the carrier filler (101) is fixed in a region above a water outlet (106) and below an overflow port (105) of the reaction device (10); the aeration device (103) is fixed on the bottom surface of the reaction device (10).
Preferably, a biological film is attached to the carrier filler, and activated sludge grows in the reaction device.
Preferably, the filling ratio of the carrier filler in the reaction device is 20% -70%.
Preferably, the aeration device has a gas-water ratio of (2-8) when performing aeration: 1.
preferably, the reflux device consists of a pipeline and a pipeline pump.
Preferably, the water inlet device is used for introducing sewage into the reaction device from the bottom of the reaction device.
Preferably, the aeration device is an aeration disc.
Preferably, the aeration device is composed of a plurality of aeration discs.
The sewage treatment device is used for treating sewage and comprises the following steps:
1) The sewage passes through a grid and a grit chamber, and then the sewage is filled into a reaction device by a water inlet device;
2) Starting a stirring device and a reflux device to perform anaerobic stirring;
3) The stirring device and the reflux device are closed, the aeration device is opened, and aerobic aeration is carried out;
4) Closing the aeration device, starting the stirring device and the reflux device, and performing anoxic stirring;
5) Starting an aeration device, starting a dosing device, adding polyaluminium chloride, and removing phosphorus;
6) Closing the stirring device, the reflux device and the aeration device, standing for precipitation, and then opening a water outlet valve to discharge supernatant;
7) Repeating the operations of the steps 1) to 6) until the concentration of the suspended sludge in the reaction device exceeds a limit value, starting the stirring device and the aeration device, and then starting a sludge discharge port valve to discharge part of the sludge-water mixed liquid;
8) Repeating the operations of steps 1) to 7).
Preferably, the anaerobic stirring time in the step 2) is 20-60 min.
Preferably, the time of the aerobic aeration in the step 3) is 1-4 h, and the concentration of dissolved oxygen in the sewage after the aeration is finished is 2-5 mg/L.
Preferably, the anoxic stirring time in the step 4) is 1-4 h.
Preferably, the addition amount of the polyaluminum chloride in the step 5) is 4-30 mg/L.
Preferably, the volume of the supernatant liquid discharged in step 6) accounts for 25% -70% of the effective volume of the reaction device.
Preferably, the volume of the muddy water mixture discharged in the step 7) accounts for 20% -60% of the total volume of the muddy water mixture in the reaction device.
The invention is further illustrated and described below in connection with specific examples.
Example 1:
a sequencing batch sewage treatment device (as shown in fig. 1, the treatment scale is about 120 tons/day) with a fixed carrier biofilm coupled with activated sludge was produced.
The sewage treatment device is used for sewage treatment and comprises the following steps:
1) Pretreating the sewage entering a certain sewage treatment plant through a grid and a grit chamber, and filling the sewage into a reaction device by using a water inlet device, wherein the water inlet time is 12min;
2) Starting a stirring device and a reflux device, and performing anaerobic stirring for 20min;
3) Closing the stirring device and the reflux device, opening the aeration device, and aerating for 155min;
4) Closing the aeration device, starting the stirring device and the reflux device, and performing anoxic stirring for 175min;
5) Starting an aeration device, starting a dosing device, adding polyaluminium chloride (the adding amount is 4 mg/L), and removing phosphorus;
6) Closing the stirring device, the reflux device and the aeration device, standing for 100min, opening a water outlet valve to discharge supernatant, wherein the volume of the discharged supernatant accounts for 70% of the effective volume of the reaction device, the water discharging time is 13min, and the discharged supernatant is taken for water quality detection, and the detection result is shown in table 2;
7) Through detection, the concentration of suspended sludge in the reaction device is 5500mg/L, and sludge discharge is needed. Firstly, starting the stirring device and the aeration device, and then starting a mud discharging port valve to discharge part of mud-water mixed liquid, wherein the volume of the discharged mud-water mixed liquid accounts for 50% of the total volume of the mud-water mixed liquid in the reaction device.
Sewage treatment results:
the quality of the incoming water is shown in the following table:
TABLE 1 quality of incoming Water (Unit: mg/L)
The effluent quality is shown in the following table:
table 2 Water quality (unit: mg/L)
As can be seen from tables 1 and 2: the sequencing batch sewage treatment device with the coupling of the immobilized carrier biological membrane and the activated sludge is used for treating sewage of a certain sewage treatment plant, and the effluent quality index can meet the special discharge limit requirement of pollutant discharge standard (solicited opinion manuscript) of urban sewage treatment plants.
Example 2:
a sequencing batch sewage treatment device (as shown in fig. 1, the treatment scale is about 120 tons/day) with a fixed carrier biofilm coupled with activated sludge was produced.
The sewage treatment device is used for sewage treatment and comprises the following steps:
1) Pretreating the sewage entering a certain sewage treatment plant through a grid and a grit chamber, and filling the sewage into a reaction device by using a water inlet device, wherein the water inlet time is 12min;
2) Starting a stirring device and a reflux device, and performing anaerobic stirring for 45min;
3) Closing the stirring device and the reflux device, opening the aeration device, and aerating for 120min;
4) Closing the aeration device, starting the stirring device and the reflux device, and performing anoxic stirring for 210min;
5) Starting an aeration device, starting a dosing device, adding polyaluminium chloride (the adding amount is 6 mg/L), and removing phosphorus;
6) And (3) closing the stirring device, the reflux device and the aeration device, standing for 80min, then opening a water outlet valve to discharge supernatant, wherein the volume of the discharged supernatant accounts for 70% of the effective volume of the reaction device, the water discharge time is 13min, and the discharged supernatant is taken for water quality detection, and the detection results are shown in table 4.
Sewage treatment results:
the quality of the incoming water is shown in the following table:
TABLE 3 quality of incoming Water (Unit: mg/L)
The effluent quality is shown in the following table:
TABLE 4 quality of effluent (Unit: mg/L)
As can be seen from tables 3 and 4: the sequencing batch sewage treatment device with the coupling of the immobilized carrier biological membrane and the activated sludge is used for treating sewage of a certain sewage treatment plant, and the effluent quality index can meet the special discharge limit requirement of pollutant discharge standard (solicited opinion manuscript) of urban sewage treatment plants.
Example 3:
a sequencing batch sewage treatment device (as shown in fig. 1, the treatment scale is about 120 tons/day) with a fixed carrier biofilm coupled with activated sludge was produced.
The sewage treatment device is used for sewage treatment and comprises the following steps:
1) Pretreating the sewage entering a certain sewage treatment plant through a grid and a grit chamber, and filling the sewage into a reaction device by using a water inlet device, wherein the water inlet time is 12min;
2) Starting a stirring device and a reflux device, and performing anaerobic stirring for 30min;
3) Closing the stirring device and the reflux device, opening the aeration device, and aerating for 175min;
4) Closing the aeration device, starting the stirring device and the reflux device, and performing anoxic stirring for 175min;
5) Starting an aeration device, starting a dosing device, adding polyaluminium chloride (the adding amount is 8 mg/L), and removing phosphorus;
6) Closing the stirring device, the reflux device and the aeration device, standing for 90min, opening a water outlet valve to discharge supernatant, wherein the volume of the discharged supernatant accounts for 70% of the effective volume of the reaction device, the water discharging time is 13min, and the discharged supernatant is taken for water quality detection, and the detection result is shown in table 6;
7) Through detection, the concentration of suspended sludge in the reaction device is 4500mg/L, and sludge discharge is needed. Firstly, starting the stirring device and the aeration device, and then starting a mud discharging port valve to discharge part of mud-water mixed liquid, wherein the volume of the discharged mud-water mixed liquid accounts for 30% of the total volume of the mud-water mixed liquid in the reaction device.
Sewage treatment results:
the quality of the incoming water is shown in the following table:
TABLE 5 quality of incoming Water (Unit: mg/L)
The effluent quality is shown in the following table:
TABLE 6 quality of effluent (Unit: mg/L)
As can be seen from tables 5 and 6: the sequencing batch sewage treatment device with the coupling of the immobilized carrier biological membrane and the activated sludge is used for treating sewage of a certain sewage treatment plant, and the effluent quality index can meet the special discharge limit requirement of pollutant discharge standard (solicited opinion manuscript) of urban sewage treatment plants.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (1)
1. A sewage treatment process is characterized in that: the sequencing batch sewage treatment device which uses the fixed carrier biological membrane and the activated sludge for coupling is used for treatment, and comprises the following steps:
1) The sewage passes through a grid and a grit chamber, and then the sewage is filled into a reaction device by a water inlet device;
2) Starting a stirring device and a reflux device to perform anaerobic stirring;
3) The stirring device and the reflux device are closed, the aeration device is opened, and aerobic aeration is carried out;
4) Closing the aeration device, starting the stirring device and the reflux device, and performing anoxic stirring;
5) Starting an aeration device, starting a dosing device, adding polyaluminium chloride, and removing phosphorus;
6) Closing the stirring device, the reflux device and the aeration device, standing for precipitation, and then opening a water outlet valve to discharge supernatant;
7) Repeating the operations of the steps 1) to 6) until the concentration of the suspended sludge in the reaction device exceeds a limit value, starting the stirring device and the aeration device, and then starting a sludge discharge port valve to discharge part of the sludge-water mixed liquid;
8) Repeating the operations of steps 1) to 7);
the sequencing batch sewage treatment device with the fixed carrier biological membrane and the activated sludge coupled comprises a reaction device, a water inlet device and a dosing device, wherein the water inlet device and the dosing device are respectively connected with the reaction device through pipelines; the side surface of the reaction device is sequentially provided with an overflow port, a water outlet and a mud outlet from top to bottom, and a reflux device for refluxing the mud-water mixed solution at the bottom of the reaction device to the top is also arranged; the inside of the reaction device is sequentially provided with carrier filler, a stirring device and an aeration device from top to bottom; the carrier filler is fixed in the area above the water outlet and below the overflow port of the reaction device; the aeration device is fixed on the bottom surface of the reaction device; the carrier filler is attached with a biological film, and activated sludge grows in the reaction device; the filling ratio of the carrier filler in the reaction device is 20% -70%; the air-water ratio of the aeration device during aeration is (2-8): 1, a step of;
the anaerobic stirring time of the step 2) is 20-60 min;
the aerobic aeration time is 1-4 h, and the concentration of dissolved oxygen in the sewage after the aeration is finished is 2-5 mg/L;
step 4) the anoxic stirring time is 1-4 h;
the addition amount of the polyaluminum chloride in the step 5) is 4-30 mg/L;
the volume of the supernatant discharged in the step 6) accounts for 25-70% of the effective volume of the reaction device;
the volume of the muddy water mixture discharged in the step 7) accounts for 20% -60% of the total volume of the muddy water mixture in the reaction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810938176.XA CN109081452B (en) | 2018-08-17 | 2018-08-17 | Sequencing batch sewage treatment device and process with immobilized carrier biological membrane and activated sludge coupled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810938176.XA CN109081452B (en) | 2018-08-17 | 2018-08-17 | Sequencing batch sewage treatment device and process with immobilized carrier biological membrane and activated sludge coupled |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109081452A CN109081452A (en) | 2018-12-25 |
| CN109081452B true CN109081452B (en) | 2024-01-23 |
Family
ID=64793677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810938176.XA Active CN109081452B (en) | 2018-08-17 | 2018-08-17 | Sequencing batch sewage treatment device and process with immobilized carrier biological membrane and activated sludge coupled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109081452B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018286A (en) * | 2019-12-27 | 2020-04-17 | 湖南军信环保股份有限公司 | Device and method for denitrifying anaerobic sludge digestion liquid |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772654A (en) * | 2004-11-11 | 2006-05-17 | 中钢集团武汉安全环保研究院 | Suspended carrier SBR sewage treating process |
| CN101708922A (en) * | 2009-10-30 | 2010-05-19 | 华南理工大学 | Denitrification dephosphorizing reactor |
| CN101913732A (en) * | 2010-08-04 | 2010-12-15 | 中国海洋大学 | Sequencing batch type suspended filler biofilm sewage treatment device |
| CN101955255A (en) * | 2010-08-04 | 2011-01-26 | 中国海洋大学 | Internal recycle sequencing batch type biomembrane wastewater treatment device |
| CN103601341A (en) * | 2013-11-22 | 2014-02-26 | 北京工业大学 | SBR (Sequencing Batch Reactor) and SBBR (Sequencing Biofilm Batch Reactor) municipal sewage high-efficiency biological treatment method and device based on anaerobic ammonia oxidation |
| CN105984951A (en) * | 2015-02-13 | 2016-10-05 | 清华大学 | SBR device for realizing rapid sludge settlement, and application thereof |
| WO2017088824A1 (en) * | 2015-09-25 | 2017-06-01 | 上海凡清环境工程有限公司 | Integrated organism filter sewage treatment apparatus |
| CN107010727A (en) * | 2017-05-22 | 2017-08-04 | 广州大学 | A kind of whole low-oxygen aeration SBMBBR synchronous denitrification and dephosphorization methods |
| CN207619084U (en) * | 2017-12-04 | 2018-07-17 | 福州福龙膜科技开发有限公司 | A kind of continuous Automatic Dosing dephosphorization apparatus of sewage disposal postposition |
| CN208980432U (en) * | 2018-08-17 | 2019-06-14 | 广州市市政工程设计研究总院有限公司 | A kind of sequencing wastewater treatment device that immobilization carrier biomembrane is coupled with activated sludge |
-
2018
- 2018-08-17 CN CN201810938176.XA patent/CN109081452B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772654A (en) * | 2004-11-11 | 2006-05-17 | 中钢集团武汉安全环保研究院 | Suspended carrier SBR sewage treating process |
| CN101708922A (en) * | 2009-10-30 | 2010-05-19 | 华南理工大学 | Denitrification dephosphorizing reactor |
| CN101913732A (en) * | 2010-08-04 | 2010-12-15 | 中国海洋大学 | Sequencing batch type suspended filler biofilm sewage treatment device |
| CN101955255A (en) * | 2010-08-04 | 2011-01-26 | 中国海洋大学 | Internal recycle sequencing batch type biomembrane wastewater treatment device |
| CN103601341A (en) * | 2013-11-22 | 2014-02-26 | 北京工业大学 | SBR (Sequencing Batch Reactor) and SBBR (Sequencing Biofilm Batch Reactor) municipal sewage high-efficiency biological treatment method and device based on anaerobic ammonia oxidation |
| CN105984951A (en) * | 2015-02-13 | 2016-10-05 | 清华大学 | SBR device for realizing rapid sludge settlement, and application thereof |
| WO2017088824A1 (en) * | 2015-09-25 | 2017-06-01 | 上海凡清环境工程有限公司 | Integrated organism filter sewage treatment apparatus |
| CN107010727A (en) * | 2017-05-22 | 2017-08-04 | 广州大学 | A kind of whole low-oxygen aeration SBMBBR synchronous denitrification and dephosphorization methods |
| CN207619084U (en) * | 2017-12-04 | 2018-07-17 | 福州福龙膜科技开发有限公司 | A kind of continuous Automatic Dosing dephosphorization apparatus of sewage disposal postposition |
| CN208980432U (en) * | 2018-08-17 | 2019-06-14 | 广州市市政工程设计研究总院有限公司 | A kind of sequencing wastewater treatment device that immobilization carrier biomembrane is coupled with activated sludge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109081452A (en) | 2018-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2780721C (en) | Wastewater pretreatment method and sewage treatment method using the pretreatment method | |
| CN104961305B (en) | A kind of processing method of livestock breeding wastewater anaerobic fermented liquid | |
| CN101698550A (en) | Advanced treating method of landfill leachate | |
| CN1887740A (en) | Short-path deep biological denitrogenation method for city garbage percolate | |
| CN110092536A (en) | A kind of kitchen anaerobic digestion biogas slurry combined treatment process | |
| CN105540841A (en) | Method and equipment for aerobic/anaerobic biofilter biological denitrogenation | |
| CN101811803A (en) | Rubbish leachate biological nitrogen removal process and device | |
| CN101659502B (en) | Method for treating waste leachate by utilizing high denitrification shared type Orbal oxidation ditch | |
| CN105330099A (en) | Integrated wastewater treatment device and petrochemical two-level effluent water treatment method | |
| CN201665583U (en) | Garbage percolate biological denitrogenation device | |
| CN106995256A (en) | A kind of handling process of starch wastewater | |
| CN105776749B (en) | The catalysis oxidation that organic wastewater is electroplated combines polynary biochemical system and its deep treatment method | |
| CN214218490U (en) | Landfill leachate treatment system | |
| CN104310710B (en) | A kind of coal chemical wastewater treating technique | |
| CN113698049A (en) | Process for treating and recycling pig-raising wastewater containing water-washed manure and water-soaked manure | |
| CN109081452B (en) | Sequencing batch sewage treatment device and process with immobilized carrier biological membrane and activated sludge coupled | |
| CN112250258A (en) | Treatment system for coal chemical industry mixed wastewater | |
| CN112047468A (en) | Biochemical treatment method of landfill leachate | |
| CN219217758U (en) | Advanced treatment system based on surface water III type water quality standard | |
| CN207468401U (en) | A kind of mark that carries is to the industrial waste water disposal device for being better than IV class water quality of earth's surface | |
| CN109133536A (en) | A kind of gelatine producing wastewater treatment | |
| CN208980432U (en) | A kind of sequencing wastewater treatment device that immobilization carrier biomembrane is coupled with activated sludge | |
| CN108975607B (en) | Method for coupling treatment of sludge digestion liquid and urban domestic sewage by using SNAD as core technology | |
| CN210711177U (en) | Pig manure fermentation biogas slurry treatment system | |
| CN210620501U (en) | Chemical fiber factory sewage treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |