CN202729948U - Biology absorption magnetic (BAM) sewage depth denitrifying treatment system - Google Patents
Biology absorption magnetic (BAM) sewage depth denitrifying treatment system Download PDFInfo
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- CN202729948U CN202729948U CN 201220300481 CN201220300481U CN202729948U CN 202729948 U CN202729948 U CN 202729948U CN 201220300481 CN201220300481 CN 201220300481 CN 201220300481 U CN201220300481 U CN 201220300481U CN 202729948 U CN202729948 U CN 202729948U
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Abstract
The utility model discloses a biology absorption magnetic (BAM) sewage depth denitrifying treatment system. The BAM sewage depth denitrifying treatment system comprises a biochemical system, and a multi-level ammonia nitrogen absorbing system and a magnetic concrete system which are conducted in fluid mode in sequence. Urban sewage in a sewage treatment process passes through an anaerobic unit, an anoxia unit, a micro-aeration unit, an aerobiotic unit, a sediment unit, a first-level mixing unit, a first-level sediment unit, a second-level mixing unit, a second-level sediment unit, a quick mixing unit, a quick sediment unit and a disinfecting unit in sequence after being pretreated by a grid and rotational flow grit basin. The BAM sewage depth denitrifying treatment system is capable of deep treating the urban sewage and stably reaching a class IV water standard of 'Surface Water Environment Quality Standard', water quality after treatment can reach chemical oxygen demand (COD) Cr <=30 mg/L, biochemical oxygen demand (BOD) 5<=6mg/L, total phosphorus (TP) <= 0.3mg/L and total nitrogen (TN) <= 1.5mg/L. Especially total nitrogen is treated below 1.5mg/L through the multi-level ammonia nitrogen absorbing system. The BAM sewage depth denitrifying treatment system is low in investment construction, and installing and operating cost, simple in operation, and high in stability.
Description
Technical field
The utility model relates to municipal effluent and treatment of Organic Wastewater treatment process, and particularly a kind of have the advanced nitrogen function and will can reach the BAM sewage deep denitrogenation processing system of surface water body IV class standard after the municipal sewage treatment.
Background technology
At present, China has built large quantities of municipal sewage plants.According to statistics, by the end of in September, 2010, National urban sewage work has 4479, and wherein built operation has 2630, daily handling ability 1.22 billion cubic meters; At have 1849 that build, daily handling ability 4900 ten thousand steres.One-level B or one-level A standard that the cleanup standard major part of these Sewage Plant is all pressed in " urban wastewater treatment firm pollutant emission standard (GB18918-2002) " design, construct and move.Along with the expansion of Sewage Plant treatment scale, tail water produced by municipal sewage treatment plant has become the main make-up water source of many urban rivers.But still there is a big difference for the minimum standard V class water body standard in the highest standard one-level A standard in " urban wastewater treatment firm pollutant emission standard (GB18918-2002) " and " water environment quality standard "; For reaching the surface water body standard after the municipal sewage treatment, China lacks reliably at present, the technological achievement of cheaply technology, and this respect is also less.
The utility model content
For the deficiency of present domestic technique, the purpose of this utility model is to provide a kind of BAM sewage deep denitrogenation processing system that the municipal effluent stabilizing treatment can be reached the IV class water body standard in " water environment quality standard ".
The technical solution of the utility model is achieved in that BAM sewage deep denitrogenation processing system, comprises successively biochemical system, multistage ammonia nitrogen absorption system and the magnetic-coagulation system of fluid communication.
Above-mentioned BAM sewage deep denitrogenation processing system, biochemical system comprises successively anaerobic unit, anoxic unit, little unit and precipitation unit of exposing to the sun of fluid communication, aerobic unit is by nitrification liquid return line and anoxic unit fluid communication, biochemical precipitation unit is by sludge return pipe and anaerobic unit fluid communication, biochemical precipitation unit, mud upgrading unit, the transportation unit of being connected connects sludge dewatering unit successively with dewatered sludge, and biochemical system is by biochemical precipitation unit and the conducting of multistage ammonia nitrogen absorption system fluid.
Above-mentioned BAM sewage deep denitrogenation processing system, multistage ammonia nitrogen absorption system comprises successively one-level agitating unit, one-level precipitation unit, secondary agitating unit and the two-stage precipitation unit of fluid communication, biochemical precipitation unit and one-level agitating unit fluid communication, two-stage precipitation unit and the conducting of magnetic-coagulation system fluid, one-level precipitation unit, mud collector unit are connected with the recycling sludge processing unit and are connected, the secondary agitating unit is connected with automatic feeder controlled, the two-stage precipitation unit also with the direct fluid communication of one-level agitating unit.
Above-mentioned BAM sewage deep denitrogenation processing system, the magnetic-coagulation system comprises the successively heavy unit of fast mixed unit, speed and the disinfection unit of fluid communication, fast mixed unit and two-stage precipitation unit fluid communication, the sludge outlet of the heavy unit of speed is connected with the mud entrance of shears, the sludge outlet of shears is connected with the mud entrance of magnetic separator, the magnetic outlet of magnetic separator is connected with the magnetic entrance of fast mixed unit, and the sludge outlet of magnetic separator is connected with the mud entrance of mud upgrading unit; Fast mixed unit also adds the unit with PAM respectively, the flocculant concentration unit is connected the unit with magnetic and is connected.PAM represents polyacrylamide.
Above-mentioned BAM sewage deep denitrogenation processing system is provided with filler support in the aerobic unit, be fixed with fibrous packing on the filler support.
BAM:Biology Absorption Magnetic, bio-absorbable magnetic separates; Effluent quality after this art breading can reach COD
Cr≤ 30mg/L, BOD
5≤ 6mg/L, TP≤0.3mg/L, TN≤1.5mg/L.Especially by multistage ammonia nitrogen absorption system total nitrogen is down to below the 1.5mg/L.The investment construction of this technology, installation and operation cost are all lower, and the operation operation is simple, and stability is high.
Adopt the utility model BAM sewage deep denitrogenation processing system can be achieved as follows technique effect: the former water of municipal effluent, COD
Cr: 100-600mg/L, BOD
5: 50-350mg/L, TN:20-50mg/L, NH
3-N:20-40mg/L, TP:1-6mg/L, SS:50-500mg/L.Water outlet can reach the IV class water body standard in " water environment quality standard ", COD after purifying
Cr≤ 30mg/L, BOD
5≤ 6mg/L, TP≤0.3mg/L, TN≤1.5mg/L.
The beneficial effects of the utility model are: can be with municipal sewage treatment and the stable water environment quality standard that reaches " in IV class water body standard.Changed the technology pattern of traditional " anaerobism → anoxic → aerobic → precipitation ", increased little unit that exposes to the sun at the aerobic unit front end, little unit water outlet part of exposing to the sun enters aerobic unit (in filler is arranged), another part enters precipitation unit, enter the part of precipitation unit as the final outflow water of biochemical system, the total nitrogen of water outlet is take ammonia nitrogen as main, and total nitrogen has very large difference take nitric nitrogen as main in this and the traditional biochemical process water outlet.
The biochemical part of this technique is compared with traditional biochemical process, and is all substantially suitable on investment and running cost.Multistage ammonia nitrogen absorption system has the function of advanced treatment of ammonia nitrogen, and magnetic separation system can have the function of advanced treatment total phosphorus and suspended substance (SS).The investment of this technique and running cost are all lower, and process operation is reliable, and is simple to operate.
Description of drawings
Fig. 1 is the process flow diagram of the utility model BAM sewage deep denitrogenation processing system.
Among the figure: 100-biochemical system, the multistage ammonia nitrogen absorption of 200-system, 300-magnetic-coagulation system, the municipal effluent of 1-after grid and sediment by rotational flow processing, 2-anaerobic unit, 3-sludge return pipe, the 4-anoxic unit, 5-nitrification liquid return line, the little unit that exposes to the sun of 6-, the 7-blower fan, 8-aerobic unit, 9-precipitation unit, 10-mud upgrading unit, 11-sludge dewatering unit, the outer transportation unit of 12-dewatered sludge, 13-one-level agitating unit, 14-one-level precipitation unit, 15-mud collector unit, 16-recycling sludge processing unit, 17-ecological brick, 19-secondary agitating unit, the 20-automatic feeder controlled, 21-ammonia nitrogen adsorbent, 22-two-stage precipitation unit, 24-is mixed unit soon, 25-flocculant concentration unit, 26-PAM adds the unit, and the 27-magnetic adds the unit, the 29-magnetic separator, the heavy unit of 30-speed, 31-shears, 32-disinfection unit.
Embodiment
By reference to the accompanying drawings the utility model is described further:
As shown in Figure 1, present embodiment BAM sewage deep denitrogenation processing system comprises successively biochemical system 100, multistage ammonia nitrogen absorption system 200 and the magnetic-coagulation system 300 of fluid communication.Biochemical system 100 comprises successively anaerobic unit 2, anoxic unit 4, little unit 6 and precipitation unit 9 of exposing to the sun of fluid communication, aerobic unit 8 is by nitrification liquid return line 5 and anoxic unit 4 fluid communication, biochemical precipitation unit 9 is by sludge return pipe 3 and anaerobic unit 2 fluid communication, biochemical precipitation unit 9, mud upgrading unit 10, sludge dewatering unit 11 be connected transportation unit 12 and are connected successively with dewatered sludge, biochemical system 100 is by biochemical precipitation unit 9 and multistage ammonia nitrogen absorption system 200 fluid communication; Be provided with filler support in the aerobic unit 8, be fixed with fibrous packing on the filler support.Multistage ammonia nitrogen absorption system 200 comprises the successively one-level agitating unit 13 of fluid communication, one-level precipitation unit 14, secondary agitating unit 19 and two-stage precipitation unit 22, biochemical precipitation unit 9 and one-level agitating unit 13 fluid communication, two-stage precipitation unit 22 and magnetic-coagulation system 300 fluid communication, one-level precipitation unit 14, mud collector unit 15 is connected with the recycling sludge processing unit successively and is connected, recycling sludge processing unit 16 can will be produced ecological brick 17 after the sludge treatment, secondary agitating unit 19 is connected with automatic feeder controlled 20, two-stage precipitation unit 22 also with one-level agitating unit 13 direct fluid communication.Magnetic-coagulation system 300 comprises the successively heavy unit 30 of fast mixed unit 24, speed and the disinfection unit 32 of fluid communication, fast mixed unit 24 and two-stage precipitation unit 22 fluid communication, the sludge outlet of the heavy unit 30 of speed is connected with the mud entrance of shears 31, the sludge outlet of shears 31 is connected with the mud entrance of magnetic separator 29, the magnetic outlet of magnetic separator 29 is connected with the magnetic entrance of fast mixed unit 24, and the sludge outlet of magnetic separator 29 is connected with the mud entrance of mud upgrading unit 10; Fast mixed unit 24 also adds the unit with PAM respectively, the flocculant concentration unit is connected the unit with magnetic and is connected, adds the unit and adds PAM, flocculation agent and magnetic to mixing in the unit 24 soon respectively in order to add unit, flocculant concentration unit and magnetic by PAM.
The sludge reflux of precipitation unit 9 is to anaerobic unit 2 imports, and return sludge ratio is 20～100%.The nitrification liquid of aerobic unit 8 is back to anoxic unit 4 imports, and the nitrification liquid reflux ratio is 150～500%.Anaerobic unit 4, anoxic unit 4, little sludge concentration of exposing to the sun unit 6 and aerobic unit 8 are 2000～6000mg/L, and hydraulic detention time is respectively 1～3h, 2～4h, 0.3～1h, 2～4h.Little unit 6 water outlet parts of exposing to the sun enter precipitation unit 9, and another part enters aerobic unit 8.Aerobic unit 8 not water outlets only have nitrification liquid to reflux.
Be fixed with the filler that fiber is made by filler support in the aerobic unit 8, the volumetric surface area of filler is 900～1600m
2/ m
3, quality is 0.5～1.2m than surface-area
2/ g, proportion are 1.05～1.2, and its volume is the 30%-80% of aerobic unit 8 cubic capacitys.Ammonia nitrogen adsorbent 21 is added in the secondary agitating unit 19 by automatic feeder controlled 20, and dosage is 0.3～3g/L.The ammonia nitrogen adsorbent that two-stage precipitation unit 22 precipitates is delivered to 13 imports of one-level agitating unit by reflux pump, and reflux ratio is 10～100%.The hydraulic detention time of fast mixed unit 24 is 0.5～2min, in addition, also needs to add flocculation agent, PAM and magnetic to fast mixed unit 24; Flocculation agent comprises aluminum salt flocculant and Ferric Salt Flocculants.The hydraulic detention time of the heavy unit 30 of speed is 5～20min, and surface load is 10～20m
3/ m
2H.The mud of the heavy unit of speed 30 precipitations, is separated magnetic by magnetic separator 29 sludge crushing by shears 31 again, and circulating is to fast mixed unit 24, and the magnetic turnover rate is less than 1%.
The municipal effluent of this example average water quality of intaking is COD
Cr: 200mg/L, BOD
5: 80mg/L, TN:28mg/L, NH
3-N:19mg/L, TP:3mg/L, SS:150mg/L.The average water quality of water outlet is COD
Cr: 16mg/L, TN:1.3mg/L, NH
3-N:0.1mg/L, TP:0.2mg/L.
Claims (5)
1.BAM sewage deep denitrogenation processing system is characterized in that, comprises the successively biochemical system of fluid communication (100), multistage ammonia nitrogen absorption system (200) and magnetic-coagulation system (300).
2. BAM sewage deep denitrogenation processing according to claim 1 system, it is characterized in that, biochemical system comprises the successively anaerobic unit of fluid communication (2), anoxic unit (4), little unit that exposes to the sun (6) and precipitation unit (9), aerobic unit (8) is by nitrification liquid return line (5) and anoxic unit (4) fluid communication, biochemical precipitation unit (9) is by sludge return pipe (3) and anaerobic unit (2) fluid communication, biochemical precipitation unit (9), mud upgrading unit (10), sludge dewatering unit (11) is connected transportation unit (12) and is connected successively with dewatered sludge, biochemical system is by biochemical precipitation unit (9) and the conducting of multistage ammonia nitrogen absorption system fluid.
3. BAM sewage deep denitrogenation processing according to claim 2 system, it is characterized in that, multistage ammonia nitrogen absorption system comprises the successively one-level agitating unit (13) of fluid communication, one-level precipitation unit (14), secondary agitating unit (19) and two-stage precipitation unit (22), biochemical precipitation unit (9) and one-level agitating unit (13) fluid communication, two-stage precipitation unit (22) and the conducting of magnetic-coagulation system fluid, one-level precipitation unit (14), mud collector unit (15) is connected 16 with the recycling sludge processing unit) connect successively, secondary agitating unit (19) is connected with automatic feeder controlled (20), two-stage precipitation unit (22) also with the direct fluid communication of one-level agitating unit (13).
4. BAM sewage deep denitrogenation processing according to claim 3 system, it is characterized in that, the magnetic-coagulation system comprises the successively fast mixed unit (24) of fluid communication, the heavy unit (30) of speed and disinfection unit (32), fast mixed unit (24) and two-stage precipitation unit (22) fluid communication, the sludge outlet of the heavy unit (30) of speed is connected with the mud entrance of shears (31), the sludge outlet of shears (31) is connected with the mud entrance of magnetic separator (29), the magnetic outlet of magnetic separator (29) is connected with the magnetic entrance of fast mixed unit (24), and the sludge outlet of magnetic separator (29) is connected with the mud entrance of mud upgrading unit (10); Fast mixed unit (24) also adds the unit with PAM respectively, the flocculant concentration unit is connected the unit with magnetic and is connected.
5. BAM sewage deep denitrogenation processing according to claim 4 system is characterized in that aerobic unit is provided with filler support in (8), is fixed with fibrous packing on the filler support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220300481 CN202729948U (en) | 2012-06-26 | 2012-06-26 | Biology absorption magnetic (BAM) sewage depth denitrifying treatment system |
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| CN 201220300481 CN202729948U (en) | 2012-06-26 | 2012-06-26 | Biology absorption magnetic (BAM) sewage depth denitrifying treatment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230123A (en) * | 2014-09-29 | 2014-12-24 | 重庆大学 | Devices for removing inorganic particles in sewage treatment system |
| CN107176768A (en) * | 2017-07-20 | 2017-09-19 | 贵州大学 | Utilize the method and device of vertical stream process sanitary sewage |
| CN109437495A (en) * | 2018-12-27 | 2019-03-08 | 广东海源环保科技有限公司 | A kind of non-halt production municipal wastewater processing line and non-halt production renovation technique |
-
2012
- 2012-06-26 CN CN 201220300481 patent/CN202729948U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230123A (en) * | 2014-09-29 | 2014-12-24 | 重庆大学 | Devices for removing inorganic particles in sewage treatment system |
| CN104230123B (en) * | 2014-09-29 | 2016-02-03 | 重庆大学 | Remove the device of inorganic particle in Sewage treatment systems |
| CN107176768A (en) * | 2017-07-20 | 2017-09-19 | 贵州大学 | Utilize the method and device of vertical stream process sanitary sewage |
| CN107176768B (en) * | 2017-07-20 | 2023-07-04 | 贵州大学 | Method and device for treating domestic sewage by using vertical flow |
| CN109437495A (en) * | 2018-12-27 | 2019-03-08 | 广东海源环保科技有限公司 | A kind of non-halt production municipal wastewater processing line and non-halt production renovation technique |
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Granted publication date: 20130213 Termination date: 20150626 |
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