CN1329314C - Multipurpose bio-trickling filter deordorization device - Google Patents
Multipurpose bio-trickling filter deordorization device Download PDFInfo
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- CN1329314C CN1329314C CNB2004100135452A CN200410013545A CN1329314C CN 1329314 C CN1329314 C CN 1329314C CN B2004100135452 A CNB2004100135452 A CN B2004100135452A CN 200410013545 A CN200410013545 A CN 200410013545A CN 1329314 C CN1329314 C CN 1329314C
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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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Abstract
The present invention discloses a multipurpose bio-trickling filter deodorization device which relates to an odour and sewage treatment device in the environment engineering. Abutting ends of two tower bodies (1) of the present invention are respectively provided with connecting flanges (7), and biological carriers (8) are fixed in the tower bodies (1). The upper end of the upper segment of tower body (1) is provided with an air exhaust pipe (2), and the lower end of the lower segment of tower body (1) is respectively connected with a water outlet pipe (5) and a back flushing pump (6). A liquid distributor (3) is arranged in the upper end of each segment of tower body (1), and a liquid through pipe (22) is connected between the liquid distributor (3) and a spray system (21). A gas distributor (11) is fixed at the lower side of the inside of the lower segment of tower body (1), and a vent pipe (24) is connected between the gas distributor (11) and an air inlet device (4). The present invention has the advantages of reasonable structure, high utilization rate of the biological carrier, convenient maintenance, easy management, biologic deodorization and high efficiency of sewage treatment. The bio-trickling filter device of the present invention integrates functions of odour treatment and sewage treatment into a whole, the equipment investment is saved, and the occupation area is reduced.
Description
Technical field: the present invention relates to foul smell and waste disposal plant in a kind of environmental engineering, be specifically related to a kind of bio-trickling filter deodorization device of using more.
Background technology: along with the raising of people's living standard and the public continuous increase to quality of life, environmental quality requirement, the stench problem that is caused by various smells has been subjected to people's extensive concern and attention.Especially contaminated river, Urban Drainage Pumping Stations, municipal sewage plant, rubbish and ight soil transhipment station and processing field and some factories constantly produce some foul gass in the city, and the serious harm people's is healthy.The scope of application and the characteristics of existing deodour method see Table 1.
The scope of application of the various deodour methods of table 1 and characteristics
| Definition | The scope of application | Characteristics | |
| Combustion method | Method by strong oxidizing reaction degraded incendivity repugnant substance | Be applicable to high density, the processing of the incendivity repugnant substance of little tolerance | The purification rate height, repugnant substance is thoroughly divided to take off, and equipment is perishable, consume fuel, cost height.May form secondary pollutant in the processing |
| Oxidation style | Utilize the method for oxygenant oxidation repugnant substance | In being applicable to, the processing of lower concentration repugnant substance | The purification rate height, but need oxygenant, the processing costs height |
| Absorption process | Use the method for the repugnant substance in the dissolution with solvents foul smell | Be applicable to the processing of height, middle concentration repugnant substance | Can handle the gas of big flow, technology is the most ripe, but purification rate is not high, consumes absorption agent, and pollutent is only transferred to liquid phase by gas phase |
| Absorption method | Utilize the method for adsorbents adsorb repugnant substance | Be applicable to the processing of lower concentration, the low dustiness foul gas of low humidity | Purification rate is very high, can handle multi-component foul gas, but sorbent material expense costliness |
| In and deodorization method | Use neutralizing agent to weaken the method for stench sense organ intensity | Be applicable to the place that immediately, temporarily to eliminate the influence of lower concentration foul gas | Can eliminate malodorous influence as soon as possible, handiness is big, but odor pollutant is not removed, and consumes neutralizing agent |
| Biological deodorization method | Utilize the method for microbiological deterioration repugnant substance | Be applicable to the processing of biodegradable water miscible repugnant substance | Deodorization rate height, deodorization device is simple, and processing cost is cheap, and running maintenance is easy, secondary pollution can be avoided, but pollutent can not be recycled |
No matter biological deodorization method still all has advantage economically aspect the security of secondary metabolites, be maximum method of abroad using in stench purifies at present.
Biological deodorization has two big class process forms: biofiltration and biological washing.Biofiltration can be divided into biological filter and Biotrickling filter (tower) again.Both differences are that the former biological metabolism environment (moisture, biological nutrients) is the self-holding type of filler substantially; The latter is then by keeping the metabolism environment to the liquid spraying of packing layer regularity.The patent of some relevant Biological fitler methodes is disclosed in recent years, the method of a kind of acidity, neutral two step deodorizations is provided as CN1116093C, foul gas elder generation biological metabolism in the acid-reaction device of sulphur system and nitrogen system removes hydrogen sulfide, removes ammonia and amine substance with chemical absorption (neutralization reaction) simultaneously; Enter the neutral reaction device then, biological metabolism is removed organic sulfide.CN141015A discloses the equipment that a kind of combined biological that is made of floated bio-reactor (lower end) and fixed type biological reactor (upper end) is handled waste gas, microorganism in suspension reactor is based on bacterium, and the microorganism in the fixed reactor can be removed wetting ability and hydrophobic contaminant in the waste gas simultaneously effectively based on Mycophyta.Equipment such as present bio-trickling filter also are in the development phase at home and abroad, and the equipment complexity that has is not easy to operation, and the needs that have are changed filler, the blockage problem that produces packing layer in the equipment actual motion that has.A kind of trickle filling at intermittence tower biological deodorization device is disclosed in the CN2420057Y utility model, though improve to some extent than other same category of device, perfect not enough.Back-purge system is not set in the tower.When aging microbial film can not in time come off, will cause packing layer to stop up, crushing increases, influence the deodorising effect of bio-trickling filter, may cause filler ponding when serious, so that make filler be in anaerobic state, and then cause the death of microorganism, equipment can not normally be moved.
Summary of the invention: the objective of the invention is to develop and a kind ofly many use the bio-trickling filter deodorization device, it has rational in infrastructure, and the biological carrier utilization height is easy to maintenance, is easy to manage the characteristics that biological deodorization and sewage treating efficiency are high.The present invention comprises two joint tower bodies 1, vapor pipes 2, liquid distributor 3, diffuser 4, water shoot 5, backwashing pump 6, back flushing gas-filled valve 15, valve 31, gas distributor 11, sprinkling system 21, fluid-through tube 22, ventpipe 24; The abutting end of two joint tower bodies 1 is respectively equipped with joint flange 7, tower body 1 internal fixing has bio-carrier 8, the upper end of last joint tower body 1 is provided with vapor pipe 2, the lower end of saving tower body 1 down is connected with water shoot 5 and backwashing pump 6 respectively, be connected with liquid distributor 3 in the upper end of every joint tower body 1, be connected with fluid-through tube 22 between liquid distributor 3 and the sprinkling system 21, gas distributor 11 is fixed on down the downside of joint tower body 1 inside, be connected with ventpipe 24 between gas distributor 11 and the diffuser 4, one end of back flushing gas-filled valve 15 is fixed on the ventpipe 24, and back flushing gas-filled valve 15 is provided with valve 31 No. one.The invention has the advantages that: 1. after tower body 1 divisional processing unit, all very convenient in carrying and repair procedures, be easy to management, it can change the height of tower body 1 according to the needs of test or engineering in addition.Can use the liquid distributor that is installed in each processing unit individually or simultaneously according to the running condition of dripping filter tower.2. the intravital bio-carrier layering of tower, the bio-carrier 8 in promptly every processing unit are divided into one to six layer.The redistribution of waste gas in packing layer is convenient in every layer gap, increases the touch opportunity between waste gas and filler.3. after this bio-trickling filter has been installed back-purge system, can regularly carry out back flushing at set intervals, the aged microbial film is in time come off, guarantee biomembranous activity.4. treating processes of the present invention only consumes and makes repugnant substance and the contacted power charge of microorganism and a small amount of nutritive medium expense, and its capital cost and running cost all are lower than the treatment facility of existing other types.Therefore have that investment is low, device is simple, good economy performance, maintenance management is convenient and be difficult for producing advantage such as secondary pollution.In facility investment, be lower than 1/2 of active carbon adsorption, on working cost, be lower than 1/3 of active carbon adsorption, be lower than 1/6 of chemiadsorption.5. the used bio-trickling tower of the present invention will be handled foul smell and the function of disposing of sewage is integrated in one, and save facility investment and also reduce floor space.
Description of drawings: Fig. 1 is an one-piece construction synoptic diagram of the present invention.
Embodiment one: the (see figure 1) present embodiment is made up of two joint tower bodies 1, vapor pipes 2, liquid distributor 3, diffuser 4, water shoot 5, backwashing pump 6, back flushing gas-filled valve 15, valve 31, gas distributor 11, sprinkling system 21, fluid-through tube 22, a ventpipe 24; The abutting end of two joint tower bodies 1 is respectively equipped with joint flange 7, tower body 1 internal fixing has bio-carrier 8, the upper end of last joint tower body 1 is provided with vapor pipe 2, the lower end of saving tower body 1 down is respectively equipped with water shoot 5 and backwashing pump 6, be provided with liquid distributor 3 in the upper end of every joint tower body 1, be connected with fluid-through tube 22 between liquid distributor 3 and the sprinkling system 21, gas distributor 11 is fixed on down the downside of joint tower body 1 inside, be connected with ventpipe 24 between gas distributor 11 and the diffuser 4, one end of back flushing gas-filled valve 15 is fixed on the ventpipe 24, and back flushing gas-filled valve 15 is provided with valve 31 No. one.Diffuser 4 is made up of air pump 9, surge tank 23, gas pretreater 10, No. two valves 32, the outlet of air pump 9 is fixedlyed connected with the inlet of surge tank 23, the outlet of surge tank 23 is fixedlyed connected with the inlet of gas pretreater 10, the exit end of gas pretreater 10 is fixed with 32, No. two valves 32 of No. two valves and fixedlys connected with an end of ventpipe 24.Sprinkling system 21 is made up of elevated tank 12, regulating tank 13, water pump 14, No. four valves 34, No. five valves 35; Be connected with No. five valve 35 between elevated tank 12 and the regulating tank 13, regulating tank 13 is connected with water pipe 27 with the inlet of water pump 14, and water pipe 27 is provided with valve 34 No. four, and the outlet of water pump 14 is fixedlyed connected with an end of water service pipe 22.
Embodiment two: the difference of (see figure 1) present embodiment and embodiment one is that it has increased gas meter 20 and No. three valves 33, and gas meter 20 and No. three valves 33 are serially connected on ventpipe 24.Other composition is identical with embodiment one with annexation.
Embodiment three: the difference of (see figure 1) present embodiment and embodiment one is that the external stability of the tower body 1 between every two-layer bio-carrier 8 has rising pipe 25, is connected with flowing water Valve 26 on the rising pipe 25.Other composition is identical with embodiment one with annexation.
Embodiment four: the difference of (see figure 1) present embodiment and embodiment one is, it has increased sewage collecting equalizing tank 18, pipe connecting 17, sewage pretreatment pool 19, No. six valves 36, No. seven valves 37 again, be connected with No. six valve 36 between sewage pretreatment pool 19 and the water pipe 27, be provided with pipe connecting 17 between sewage collecting equalizing tank 18 and the sewage pretreatment pool 19, be connected with valve 37 on the pipe connecting 17 No. seven.Other composition is identical with embodiment one with annexation.Can solve like this and dispose of sewage and spray the trouble of all using elevated tank 12 and regulating tank 13.
Embodiment five: the difference of (see figure 1) present embodiment and embodiment one is that it has increased spray two-position controller 16 again, and spray two-position controller 16 is serially connected on the water service pipe 22 of water pump 14 outlets.Other composition is identical with embodiment one with annexation.
Spray liquid among the present invention can use the water outlet of sewage work's secondary sedimentation basins, also can use the nutritive medium of artificial preparation.Spray liquid forms water membrane outside organism through the bio-carrier 8 in the packing layer time, the gas that enters in the tower is dissolved in moisture film earlier, and then is absorbed degraded by the Institute of Micro-biology on the filler, and purified gas is discharged in the atmosphere through cat head vapor pipe 2.Spray water is discharged by water shoot at the bottom of the tower 5 through behind the bio-carrier 8.Spray liquid has three purposes: the first is the moisture content that keeps filling surface, the specific absorption that improves foul smell; Its two condition that provides microorganism existence and breed; It three is for the meta-bolites of microorganism and aged microbial film are got rid of, to keep the normal operation of system.Select rational spray condition mainly to consider following 3 points: to reduce spray flux to reduce the crushing that drips filter tower; Increase the specific absorption that spray flux improves foul smell; Keep suitable spray flux, the excellent growing conditions of microorganism is provided, as other trace element such as temperature, pH, nitrogen, phosphorus, potassium and moisture etc.Spray flux and spray frequency are by the solenoid control in the spray automatic control device.When handling low concentration gas, bio-trickling filter need not back flushing, but during long time treatment high density foul smell, filler may stop up, the present invention introduces water with backwashing pump 6 at the bottom of the tower drips in the filter tower, and water is from bottom to top inflated on inner-tower filling material with back flushing gas-filled valve 15 simultaneously, aging microbial film on the bio-carrier 8 is rinsed out, and the water after the back flushing is discharged by the water shoot 25 of cat head vapor pipe 2 and each bio-carrier layer.Because the intermittent shower operation is arranged, and the number of times of back flushing is few.The handled foul smell composition of the present invention can be sulfocompounds such as hydrogen sulfide, dimethyl sulfide, also can be nitrogenous compounds such as ammonia, Trimethylamine 99, can also be volatile organic matters such as organic acid, organic ester, organic alcohol, aromatic hydrocarbon, aliphatic hydrocarbon, halohydrocarbon.Inlet air temperature and inflow temperature all are advisable 10 ℃ to 50 ℃ scopes in the tower body 1.Adopt bio-trickling filter of the present invention, the sulfur-bearing that certain pharmaceutical factory sewage work is produced contains ammonia and contains the continuous deodorization test that organic mixing foul smell has carried out nearly half a year.Because the concentration of on-the-spot ammonia is low, has added about 91mg/m
3Ammonia.This sulfur-bearing mixing foul smell is by in the air pump 9 suction surge tanks 23, enters bio-trickling filter through gas meter 20 from the gas distributor 11 of bottom again.After the bio-carrier layer filters, discharge by top cat head vapor pipe 2.Liquid in the elevated tank 12 flows automatically to regulating tank by action of gravity, by the liquid distributor 3 of water pump 14 through each tower body top setting, regularly spray sewage work's secondary sedimentation basins water outlet to packing layer, its best spray rate is 3.56L/ (Ld), and treatment effect is as shown in table 2.When gas flow is 9m
3/ h, and hydrogen sulfide inlet gas concentration＜1700mg/m
3The time, this bio-trickling filter reaches 100% to the removal effect of hydrogen sulfide and ammonia.Clearance to other organic exhaust gas is also very high.When on-the-spot concentration of hydrogen sulfide fluctuates, surpass 1700mg/m
3Concentration the time, just detect 6mg/m at the cat head vapor pipe
3Hydrogen sulfide, so the maximum volume of hydrogen sulfide load is Nv≤204g/ (m
3H).
Certain sewage work's sulfur-bearing of table 2 contains the treatment effect that ammonia contains organism mixing foul smell
| Composition | Air inlet mean concns (mg/m 3) | Clearance (%) | |
| Former high density pump house foul smell composition | Acetone ethyl acetate butyl acetate butanols phenylacetic acid hydrogen sulfide ammonia | 14110 9109 300 1479 200 854 15 | 85 91 100 96 100 100 100 |
| Add gaseous constituent | Ammonia methane | 91 270 | 100 32 |
It is spray water that employing contains nutraceutical secondary sedimentation basins water outlets such as N, P on a small quantity, and this packing tower has stronger anti-load impact ability, and the tower intrinsic impedance is low, and no latch up phenomenon is not carried out back flushing half a year, can steady in a long-term move.
Certain workshop, pharmaceutical factory technical process produces high concentration hard-degraded organic waste water, and this waste water directly enters sewage work's intractable.The average water yield per day of this technical process is about 8 tons, utilizes sewage collecting equalizing tank 18 and sewage pretreatment pool 19 to adopt simultaneously that two bio-trickling filters are in parallel to be used, and when the water yield was maximum, two dripped filter towers and work simultaneously, when the water yield hour, only move one.When concentration during at 100～400 milligrams/liter, hydraulic detention time is 0.5 hour; Concentration is when 400～800 milligrams/liter, and hydraulic detention time is 1 hour; Concentration is when 800～1200 milligrams/liter, and hydraulic detention time is 1.5～2.5 hours; When concentration during at 1200～1600 milligrams/liter, hydraulic detention time is 2.5～3 hours; Concentration is when 1600～2000 milligrams/liter, and hydraulic detention time is 3～4 hours.Handle the chemical oxygen demand COD cr decline 80-95% in the water outlet of back, the NH of ammonia nitrogen
3-N clearance reaches 65-85%, and the BOD clearance reaches 90-98%, and the SS clearance can reach more than 85%.The BOD value can be up to state standards fully at 15～60 milligrams/liter.
Claims (4)
1, a kind of bio-trickling filter deodorization device of using more, it comprises two joint tower bodies (1), vapor pipe (2), liquid distributor (3), diffuser (4), water shoot (5), backwashing pump (6), back flushing gas-filled valve (15), a valve (31), gas distributor (11), sprinkling system (21), fluid-through tube (22), ventpipe (24); The abutting end of two joint tower bodies (1) is respectively equipped with joint flange (7), tower body (1) internal fixing has filler (8), the upper end of last joint tower body (1) is provided with vapor pipe (2), the lower end of saving tower body (1) down is connected with water shoot (5) and backwashing pump (6) respectively, be provided with liquid distributor (3) in the upper end of every joint tower body (1), be connected with fluid-through tube (22) between liquid distributor (3) and the sprinkling system (21), gas distributor (11) is fixed on down the inner downside of joint tower body (1), be connected with ventpipe (24) between gas distributor (11) and the diffuser (4), one end of back flushing gas-filled valve (15) is fixed on the ventpipe (24), back flushing gas-filled valve (15) is provided with a valve (31), diffuser (4) is by air pump (9), surge tank (23), gas pretreater (10), No. two valves (32) are formed, the outlet of air pump (9) is fixedlyed connected with the inlet of surge tank (23), the outlet of surge tank (23) is fixedlyed connected with the inlet of gas pretreater (10), the exit end of gas pretreater (10) is fixed with No. two valves (32), No. two valves (32) are fixedlyed connected with an end of ventpipe (24), and sprinkling system (21) is by elevated tank (12), regulating tank (13), water pump (14), No. four valves (34), No. five valves (35) are formed; Be connected with No. five valves (35) between elevated tank (12) and the regulating tank (13), regulating tank (13) is connected with water pipe (27) with the inlet of water pump (14), water pipe (27) is provided with No. four valves (34), the outlet of water pump (14) is fixedlyed connected with an end of water service pipe (22), it is characterized in that it also comprises sewage collecting equalizing tank (18), pipe connecting (17), sewage pretreatment pool (19), No. six valves (36), No. seven valves (37), be connected with No. six valves (36) between sewage pretreatment pool (19) and the water pipe (27), be provided with pipe connecting (17) between sewage collecting equalizing tank (18) and the sewage pretreatment pool (19), be connected with No. seven valves (37) on the pipe connecting (17).
2, according to claim 1 a kind ofly use the bio-trickling filter deodorization device more, it is characterized in that it has increased gas meter (20) and No. three valves (33), gas meter (20) and No. three valves (33) are serially connected on the ventpipe (24).
3, according to claim 1 a kind ofly use the bio-trickling filter deodorization device more, it is characterized in that the external stability of the tower body (1) between every two-layer bio-carrier (8) has rising pipe (25), be connected with flowing water Valve (26) on the rising pipe (25).
4, according to claim 1ly a kind ofly many use the bio-trickling filter deodorization device, it is characterized in that it has increased spray two-position controller (16) again, spray two-position controller (16) is serially connected on the water service pipe (22) that water pump (14) exports.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100135452A CN1329314C (en) | 2004-02-05 | 2004-02-05 | Multipurpose bio-trickling filter deordorization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100135452A CN1329314C (en) | 2004-02-05 | 2004-02-05 | Multipurpose bio-trickling filter deordorization device |
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| CN1557741A CN1557741A (en) | 2004-12-29 |
| CN1329314C true CN1329314C (en) | 2007-08-01 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332893C (en) * | 2005-08-05 | 2007-08-22 | 哈尔滨工业大学 | Boitrickling filter deodourization system of sewage chemical off odour and its deodour method |
| FR2895394B1 (en) * | 2005-12-27 | 2008-02-08 | Stronglead Ltd | DEVICE FOR TREATING WASTE WATER FOR PURIFYING STATIONS, SUITABLE FOR TREATING VARIABLE VOLUMES OF WATER |
| CN100376312C (en) * | 2006-04-14 | 2008-03-26 | 浙江工业大学 | A plate type biofiltration tower and waste gas treatment process thereof |
| CN101804300A (en) * | 2009-02-18 | 2010-08-18 | 盐城盐工环境科技有限公司 | Combined bio-trickling filter linkage organic waste gas treatment equipment |
| CN102849844B (en) | 2012-10-10 | 2014-12-10 | 南京大学 | Coupling bioreactor and method for simultaneously purifying malodorous gas and waste water by using same |
| CN104001413A (en) * | 2013-02-27 | 2014-08-27 | 上海化学工业区中法水务发展有限公司 | Processing method for malodorous gas of chemical area sewage plant |
| CN106976960A (en) * | 2017-04-21 | 2017-07-25 | 徐州工程学院 | A kind of tower biological filter for Treating Municipal Sewage |
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