CN203833702U - Bioaugmentation treatment device for medium- and low-concentration ammonia nitrogen wastewater - Google Patents
Bioaugmentation treatment device for medium- and low-concentration ammonia nitrogen wastewater Download PDFInfo
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- CN203833702U CN203833702U CN201320576027.6U CN201320576027U CN203833702U CN 203833702 U CN203833702 U CN 203833702U CN 201320576027 U CN201320576027 U CN 201320576027U CN 203833702 U CN203833702 U CN 203833702U
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Abstract
The utility model relates to a bioaugmentation treatment device for medium- and low-concentration ammonia nitrogen wastewater. The bioaugmentation treatment device is characterized by being provided with a regulation pool, a water feeding pump, an anoxic zone, a precipitation zone I, an aerated biological fluidized bed zone, an air blower, a mixed liquid refluxing pump, a precipitation zone II and a remaining sludge discharge pump, wherein the regulation pool is connected with the anoxic zone through a water inlet of the water feeding pump, a water inlet valve, an inlet water flowmeter and the water feeding pump; the anoxic zone is connected with the precipitation zone I through a water through hole; the precipitation zone I is connected with the aerated biological fluidized bed zone through a water through hole; the aerated biological fluidized bed zone is connected with the precipitation zone II through a water through hole and is connected with the anoxic zone through a water inlet of an internal reflux pump, an internal reflux valve, an internal reflux flowmeter, the internal reflux pump and a water outlet of the internal reflux pump. The bioaugmentation treatment device for the medium- and low-concentration ammonia nitrogen wastewater, provided by the utility model, is efficient, economical and stable and is little in remaining sludge.
Description
Technical field
The invention belongs to water treatment field, be specifically related to a kind of biological treatment device of middle Low Concentration Ammonia Containing Wastewater.
Background technology
Ammonia nitrogen waste water derives from multiple industry fields such as chemical industry, cultivation, municipal effluent, the direct discharge of a large amount of ammonia nitrogen waste waters can stimulate the waterplant hypertrophy such as algae, there is the contamination phenomenon of the eutrophication such as Chi Hu, red tide, some of them algae protein matter toxin can be enriched in water generates object, and makes people poisoning by food chain.The treatment process of current domestic centering Low Concentration Ammonia Containing Wastewater is mainly by biological process denitrogenation, utilizes the nitrification of nitrobacteria and the denitrogenation of denitrifying bacterium to realize the removal of nitrogen in waste water.But, nitrobacteria poor growth, generation cycle are grown, do not preponderate and be easily eliminated at traditional biochemical system and heterotrophic bacterium competition, in routine biochemistry treatment system, nitrobacteria proportion is often lower, to such an extent as to tradition is biochemical limited to the removal effect of nitrogen in waste water.The deficiencies such as in addition, traditional biochemical denitrification also has that floor space is large, efficiency is low when organic loading high and low temperature.
The deficiency lower for current biological process denitride technology efficiency, energy consumption is higher, Novel waste aquatic organism denitrification process: short distance nitration-denitrification process arises.It theory and technical broken through traditional nitrated-framework of denitrification process.Traditional biological denitrificaion is ammonia nitrogen to be completely oxidized to nitrate nitrogen carry out denitrification again.From the microbial transformation process of nitrogen, it is by two differential responses that independently bacterium catalysis completes of two classes that ammonia-state nitrogen is oxidized to nitric nitrogen.But no matter be from NO for denitrifying bacteria
2 --N or NO
3 --N all can be used as final hydrogen acceptor.Thereby whole biological denitrification process can pass through NH
4 +-N → NO
2 --N → N
2approach complete.So-called short distance nitration is exactly by nitrifying process control HNO
2stage and stopping, carry out subsequently denitrification.Compared with traditional nitration denitrification, short-cut nitrification and denitrification not only can be saved energy consumption approximately 25% (in oxygen), saves carbon source 40% (in methyl alcohol), and can Reaction time shorten, the significantly sludge quantity of reduction generation.
But, because ammonia oxidizing bacteria is comparatively responsive to many conditions such as pH, temperature, dissolved oxygen, sludge age, inhibitory substances, therefore, in actual moving process, be difficult to realize the enrichment of ammonia oxidizing bacteria.
Summary of the invention
The object of the invention is the deficiency existing in order to solve current biochemical denitrification technology, organism fluidization bed technique, using embedding immobilization microorganism technology, short distance nitration-denitrification technology are combined, a kind of biological reinforced treatment unit of efficient, economic, the middle Low Concentration Ammonia Containing Wastewater that stable, excess sludge is few is provided.
Technical solution of the present invention: a kind of biological reinforced treatment unit of middle Low Concentration Ammonia Containing Wastewater, it is characterized in that: be provided with equalizing tank, intake pump, oxygen-starved area, precipitation one district, aeration and biological fluidised bed zones, gas blower, mixed-liquor return pump, precipitation 2nd district, excess sludge discharge pump, equalizing tank is connected with oxygen-starved area by intake pump water-in, inlet valve, flooding velocity meter, intake pump; Oxygen-starved area is connected with precipitation one district by water hole; Precipitating a district is connected with aeration and biological fluidized-bed by water hole; Aeration and biological fluidised bed zones is connected with precipitation 2nd district by water hole, pumps the mouth of a river be connected with oxygen-starved area by internal reflux pump water inlet mouth, internal reflux valve, internal reflux under meter, internal reflux pump, internal reflux; Gas blower arranges aeration tube by aeration valve, aerate flux meter with aeration and biological fluidized-bed bottom and is connected; Precipitate a district, precipitation 2nd district carry out mud discharging by excess sludge discharge mouth, excess sludge valve and excess sludge discharge pump.
Described equalizing tank arranges intake pump water-in; In oxygen-starved area, filling combination microbe stuffing, whipping appts, intake pump water outlet, mixed-liquor return pump the mouth of a river; Aeration and biological fluidized-bed bottom arranges aeration tube and aeration chamfering, and top arranges block, the following entrapping method fixation support of filling of block, and block top arranges mixed-liquor return pump water inlet mouth; Settling region sets out the mouth of a river and excess sludge discharge mouth.
Described oxygen-starved area whipping appts power is 4-10W/m
3, alr mode can adopt agitator to stir or water pump internal recycle stirs.
In described aeration and biological fluidised bed zones, aeration chamfer angle is 45 °-60 °, is highly 100mm-500mm.
The block aperture of described aeration and biological fluidised bed zones is 1-2mm, is arranged on the following 100mm-800mm of the water surface.
Described aeration and biological fluidised bed zones internal reflux pipe is positioned at the above 100mm-500mm of block.
In described aeration and biological fluidised bed zones, carrier is using embedding immobilization microorganism carrier, and in carrier, bacterial classification is mainly ammonia oxidizing bacteria, and diameter of carrier is 3-5mm, and carrier dosage is 5%-30%.
Described aeration and biological fluidised bed zones aeration mode is boring aeration or micro-pore aeration.
The present invention compared with prior art, has the following advantages:
1. adaptable, treatment effect is good.Using embedding immobilization microorganism technology make microorganism especially ammonia oxidizing bacteria be kept in fixation support, can increase its solid retention time in biochemical system, effectively solve ammonia oxidizing bacteria poor growth in biochemical system, generation cycle long, compete with heterotrophic bacterium at traditional biochemical system do not preponderate, the easy problem such as loss.In addition, for the diversity of Pollutants in Wastewater, bacterial classification, from traditional biochemical system, self has diversity and stronger adaptive faculty, and it also has good removal ability to other pollutents beyond ammonia nitrogen in waste water.In addition, aeration and biological fluidization (ABFT) has the advantages such as specific surface area is large, contact is even, mass transfer velocity is fast, crushing is low, can improve the removal efficiency of fixed microorganism carrier to Pollutants in Wastewater.
2. the present invention has advantages of energy-saving and cost-reducing.In fixed microorganism carrier, embedding is mainly ammonia oxidizing bacteria, under aerobic condition, it can be nitrite nitrogen by the mineralized nitrogen in waste water, the nitrite nitrogen generating is converted into nitrogen by denitrifying bacterium and is removed under anoxia condition, compare traditional biochemical denitrification, reduce that nitrite nitrogen is converted into nitric nitrogen (aerobic stage) and nitric nitrogen is converted into nitrite nitrogen (anoxic stage) process, realize short distance nitration-denitrification effect, can save the oxygen-supplying amount of 25% left and right, the carbon source of 40% left and right, reduce the reactor volume of 30%-40%.
3. mud sludge output is few.Along with the increase of domestic sewage work quantity, the disposal of sewage treatment plant residual mud has become a difficult problem.Bacterial classification of the present invention is from traditional biochemical system, can " consume " in process of production the excess sludge of sewage work on the one hand, on the other hand, bacterial classification is grown in immobilization spheroid, autophage, excess sludge discharge amount is little, is conducive to alleviate a sludge treatment difficult problem.
4. the present invention can also effectively solve the problems such as the easy expansion of traditional biochemical system active sludge.
Brief description of the drawings
Fig. 1 is the device floor map of the utility model example device; Fig. 2 is the elevational schematic view of the utility model example device; Fig. 3 is the diagrammatic cross-section of the utility model example device.
In figure, 1-equalizing tank; 2-oxygen-starved area; 3-precipitates a district; 4-aeration and biological fluidised bed zones; 5-precipitates 2nd district; 6-intake pump; 7-residual sludge pump; 8-internal reflux pump; 9-gas blower; 10-combines microbe stuffing; 11-aeration tube; 12-aeration chamfering; 13-water hole; 14-water outlet; 15-inlet valve; 16-flooding velocity meter; 17-internal reflux valve; 18-internal reflux under meter; 19-aeration valve; 20-aerate flux meter; 21-excess sludge valve; 22-block; 23-intake pump water-in; 24-intake pump water outlet; 25-internal reflux pumps the mouth of a river; 26--internal reflux pump water inlet mouth; 27-excess sludge discharge mouth; 28-whipping appts; 29-using embedding immobilization carrier.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in detail.
Embodiment: the present embodiment device as shown in Figure 1, Figure 2 and Figure 3, mainly comprises equalizing tank 1, intake pump 6, oxygen-starved area 2, precipitation one district 3, aeration and biological fluidised bed zones 4, gas blower 9, internal reflux pump 8, precipitation two districts 5, residual sludge pump 7.Described equalizing tank 1 arranges intake pump 6 and intake pump water-in 22; In oxygen-starved area, filling combination microbe stuffing 10, whipping appts 28, intake pump water outlet 24, internal reflux pump the mouth of a river 25; Aeration and biological fluidized-bed 4 bottoms arrange aeration tube 11 and aeration chamfering 12, and top arranges block 22, the following entrapping method fixation support 29 of filling of block, and block 22 tops arrange internal reflux pump water inlet mouth 26; Precipitate a district 2, precipitation two districts 5 excess sludge discharge mouth 27 is all set.Precipitate two districts 5 and set out the mouth of a river 14.
Equalizing tank 1 is connected with oxygen-starved area 2 by intake pump water-in 23, inlet valve 15, flooding velocity meter 16, intake pump 6; Oxygen-starved area 2 is connected with precipitation one district 3 by water hole 13; Precipitating a district 3 is connected with aeration and biological fluidized-bed 4 by water hole 13; Aeration and biological fluidised bed zones 4 is connected with precipitation two districts 5 by water hole 13, pumps the mouth of a river 25 be connected with oxygen-starved area 2 by internal reflux pump water inlet mouth 26, internal reflux valve 17, internal reflux under meter 18, internal reflux pump 8, internal reflux; Gas blower 9 arranges aeration tube 11 by aeration valve 19, aerate flux meter 20 with aeration and biological fluidized-bed 4 bottoms and is connected.Precipitate a district 3, precipitation two districts 5 carry out mud discharging by excess sludge discharge mouth 27, excess sludge valve 21 and excess sludge discharge pump 7.
In this example, oxygen-starved area 2 adopts water pump inner loop mode to stir, mix, and current upflow velocity is at 1-2m/h; The element diameter Φ 150mm of combination microbe stuffing 10, spacing 80mm.
In this example, adopt boring aeration mode that dissolved oxygen and stirring action are provided in aeration and biological fluidized-bed 4, perforation gas flow rate is 1-3m/s; Aeration chamfering 12 height 150mm, 45 ° of angles, under the dual function of aeration condition and aeration chamfering, using embedding immobilization carrier 29 is fluidized in aeration and biological fluidized-bed 4, has improved largely the mass transfer effect of carrier, reduces dead angle area.
In this example, using embedding immobilization carrier 29 is spherical in shape, particle diameter 3-5mm, and proportion, close to water, is conducive to its fluidized state in aeration and biological fluidized-bed 4 forms.
The utility model is simple in structure, installation, easy to maintenance, and by organism fluidization bed technique, using embedding immobilization microorganism technology, short distance nitration-denitrification technology are combined, the treatment effect of Low Concentration Ammonia Containing Wastewater in can improving.In addition, it also has the advantages such as strong shock resistance, medicine consumption is low, volume is little, excess sludge is few.
Claims (1)
1. the biological reinforced treatment unit of Low Concentration Ammonia Containing Wastewater in a kind, it is characterized in that being provided with equalizing tank, intake pump, oxygen-starved area, precipitation one district, aeration and biological fluidised bed zones, gas blower, mixed-liquor return pump, precipitation 2nd district, excess sludge discharge pump, equalizing tank is connected with oxygen-starved area by intake pump water-in, inlet valve, flooding velocity meter, intake pump; Oxygen-starved area is connected with precipitation one district by water hole; Precipitating a district is connected with aeration and biological fluidized-bed by water hole; Aeration and biological fluidised bed zones is connected with precipitation 2nd district by water hole, pumps the mouth of a river be connected with oxygen-starved area by internal reflux pump water inlet mouth, internal reflux valve, internal reflux under meter, internal reflux pump, internal reflux; Gas blower arranges aeration tube by aeration valve, aerate flux meter with aeration and biological fluidized-bed bottom and is connected; Precipitate a district, precipitation 2nd district carry out mud discharging by excess sludge discharge mouth, excess sludge valve and excess sludge discharge pump.
2. device as claimed in claim 1, is characterized in that equalizing tank arranges intake pump water-in; In oxygen-starved area, filling combination microbe stuffing, whipping appts, intake pump water outlet, mixed-liquor return pump the mouth of a river; Aeration and biological fluidized-bed bottom arranges aeration tube and aeration chamfering, and top arranges block, the following entrapping method fixation support of filling of block, and block top arranges mixed-liquor return pump water inlet mouth; Settling region sets out the mouth of a river and excess sludge discharge mouth.
3. device as claimed in claim 1, is characterized in that oxygen-starved area whipping appts power is 4-10W/m
3, alr mode can adopt agitator to stir or water pump internal recycle stirs.
4. device as claimed in claim 1, is characterized in that in aeration and biological fluidised bed zones, aeration chamfer angle is 45 °-60 °, is highly 100mm-500mm.
5. device as claimed in claim 1, is characterized in that the block aperture of aeration and biological fluidised bed zones is 1-2mm, is arranged on the following 100mm-800mm of the water surface.
6. device as claimed in claim 1, is characterized in that aeration and biological fluidised bed zones internal reflux pipe is positioned at the above 100mm-500mm of block.
7. device as claimed in claim 1, is characterized in that in aeration and biological fluidised bed zones, carrier is using embedding immobilization microorganism carrier, and in carrier, bacterial classification is mainly ammonia oxidizing bacteria, and diameter of carrier is 3-5mm, and carrier dosage is 5%-30%.
8. device as claimed in claim 1, is characterized in that aeration and biological fluidised bed zones aeration mode is boring aeration or micro-pore aeration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320576027.6U CN203833702U (en) | 2013-09-17 | 2013-09-17 | Bioaugmentation treatment device for medium- and low-concentration ammonia nitrogen wastewater |
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|---|---|---|---|
| CN201320576027.6U CN203833702U (en) | 2013-09-17 | 2013-09-17 | Bioaugmentation treatment device for medium- and low-concentration ammonia nitrogen wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293818A (en) * | 2015-06-09 | 2016-02-03 | 戴昕 | Method for treating ammonia-nitrogen wastewater through coupling of immobilization technology and CANON process |
| CN105502840A (en) * | 2016-01-11 | 2016-04-20 | 煤科集团杭州环保研究院有限公司 | Sludge drying waste water treatment system and treatment process |
-
2013
- 2013-09-17 CN CN201320576027.6U patent/CN203833702U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293818A (en) * | 2015-06-09 | 2016-02-03 | 戴昕 | Method for treating ammonia-nitrogen wastewater through coupling of immobilization technology and CANON process |
| CN105502840A (en) * | 2016-01-11 | 2016-04-20 | 煤科集团杭州环保研究院有限公司 | Sludge drying waste water treatment system and treatment process |
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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: 211500 No. 19, Longhua Road, Liuhe Economic Development Zone, Jiangsu, Nanjing Patentee after: KESHENG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Patentee after: NANJING University OF SCIENCE AND TECHNOLOGY Address before: 211500 No. 19, Longhua Road, Liuhe Economic Development Zone, Jiangsu, Nanjing Patentee before: NANJING KESHENG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Patentee before: Nanjing University of Science and Technology |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201225 Address after: 210094 No. 200, Xiaolingwei street, Nanjing, Jiangsu Patentee after: NANJING University OF SCIENCE AND TECHNOLOGY Address before: 211500 No.19 Longhua Road, Liuhe Economic Development Zone, Nanjing, Jiangsu Province Patentee before: KESHENG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Patentee before: NANJING University OF SCIENCE AND TECHNOLOGY |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20210917 |