CN204079585U - A kind of rising streaming zeolite biological aerated filter reactive system - Google Patents
A kind of rising streaming zeolite biological aerated filter reactive system Download PDFInfo
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- CN204079585U CN204079585U CN201420625160.0U CN201420625160U CN204079585U CN 204079585 U CN204079585 U CN 204079585U CN 201420625160 U CN201420625160 U CN 201420625160U CN 204079585 U CN204079585 U CN 204079585U
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- zeolite
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- aeration
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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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- Water Treatment By Sorption (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a kind of rising streaming zeolite biological aerated filter reactive system, comprise reactor and PLC; This inside reactor is provided with sandy gravel stratum and zeolite layer; The sidewall of this reactor is provided with water outlet, back flushing water-in, aeration opening, back flushing inlet mouth, water-in and some thief holes; This water outlet, back flushing water-in, aeration opening, back flushing inlet mouth and water-in respectively with go out bucket, back flushing intake pump, aeration pump, back flushing aeration pump and intake pump and be connected.Native system controls all water pumps and air pump in real time by PLC, and water inlet speed and feed rate are controlled by water pump and gas meter respectively, thus can realize full automatic control.And zeolite layer both can adsorption selection denitrogenation, heterotrophic bacteria and nitrobacteria apposition growth can be made thus biological denitrificaion as the carrier of microorganism growth again, realize the biodynamic regeneration of zeolite.Native system can be widely used in the denitrogenation processing such as sanitary sewage, municipal wastewater, trade effluent.
Description
Technical field
The present invention relates to a kind of water treatment device, is the one rising streaming zeolite biological aerated filter reactive system of the filtrate using zeolite as BAF in particular.
Background technology
Poison if the ammonia nitrogen containing higher concentration in water will be formed hydrocoles such as fish, do not process in time or deal with improperly and can cause pathogen contamination, stench, enter rivers and lakes and may cause aquatic ecosystem eutrophication, stimulate algal blooms, there is the eutrophication pollution phenomenons such as red tide, cause water ecological setting to destroy, harm is formed to human health.Therefore one of the removal problem study hotspot becoming water treatment of ammonia nitrogen.
Zeolite is the general name of the moisture silicon aluminate crystal of the naturally occurring porousness of nature, the tectosilicate be made up of silicon-oxy tetrahedron and aluminum-oxygen tetrahedron.The positively charged ions such as the cavity (hole) in zeolite lattice middle K, Na, Ca and water molecules are combined not tight with screen work, very easily with the positively charged ion generation exchange interaction in its ambient water solution, thus have good absorption and ion-exchange performance.Mercer etc. utilize the ammonia nitrogen waste water that the clinoptilolite concentration for the treatment of of the U.S. is 18.5mg/L at first, and ammonia nitrogen removal frank reaches 98%, prove that zeolite is to NH
4 +adsorption selectivity higher than organic cation exchange resin.
BAF (BAF, Biological Aerated Filter) be the sewage treatment technique used for reference water-feeding leaching pool technique and develop on the basis of ordinary biofilter, its maximum feature integrates bio-oxidation and retains suspended solids, save follow-up secondary sedimentation basins, under the prerequisite ensureing treatment effect, treatment process is simplified.The carrier that biofilter material grows as microbial film is the core component of BAF.Utilize zeolite to the adsorption selection characteristic of ammonia nitrogen, zeolite is more conducive to the apposition growth of heterotrophic bacterium and nitrobacteria as the filtrate of BAF, zeolite is to NH
4 +exchange adsorption make NH
4 +ion enrichment is in zeolite surface and inside, and zeolite granular has unique aerobic-anaerobic microenvironment makes NH
4 +nitrated by nitrifier on zeolite, realize the dynamic biological regeneration of zeolite.Result of study shows that zeolite biological aerated filter (ZBAF) tolerates ammonia nitrogen impact load, compares sand and granulated active carbon more effectively can remove ammonia nitrogen.
CN2861135Y discloses " a kind of zeolite reactors ", and this reactor is exactly a kind of typical BAF reactor using zeolite as filtrate.But case and existing zeolite biological aerated filter reactor before this patent, mostly exist following not enough:
1. there is no Controlling System: existing bio-reactor is all the open and close by each water pump of Artificial Control and air pump, therefore can not realize automatization completely, automatically control;
2. reaction effect is not good: before above-mentioned patent, the aeration of case is the bottommost being arranged on reactor, and distance zeolite layer also has a segment distance, therefore will affect aeration effect.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of rising streaming zeolite biological aerated filter reactor that can realize automatically controlling.
For solving the problems of the technologies described above, technical solution of the present utility model is:
A kind of rising streaming zeolite biological aerated filter reactive system, comprises reactor and PLC; This inside reactor is provided with filtrate back up pad near bottom position, and filtrate back up pad is provided with many filter openings; Insert gravel above this filtrate back up pad and form sandy gravel stratum, above sandy gravel stratum, insert zeolite again form zeolite layer; The sidewall of this reactor is provided with water outlet, back flushing water-in, aeration opening, back flushing inlet mouth, water-in and some thief holes; This water outlet is arranged on the top of zeolite layer, its by rising pipe with go out bucket and be connected; This back flushing water-in, back flushing inlet mouth and water-in are all arranged on the below of filtrate back up pad, and are connected with back flushing intake pump, back flushing aeration pump and intake pump respectively by pipeline; This aeration opening is positioned within sandy gravel stratum, and it is connected by road with aeration pump; In addition, described back flushing intake pump connects back flushing water inlet bucket; Described intake pump connects water inlet bucket; Described PLC controls all water pumps and air pump in real time.
Preferably, the pipeline between described aeration pump and aeration opening is provided with a gas meter.
Preferably, the height of described zeolite layer is greater than 5 times of sandy gravel stratum height.
Preferably, the zeolite filler of described zeolite layer selects particle diameter to be the natural zeolite of 4-8mm.
Preferably, described sandy gravel stratum replaces with the macrobead zeolite layer that particle diameter is larger compared with zeolite layered material footpath, upper strata.
After adopting such scheme, the utility model tool has the following advantages:
1. the utility model adds PLC in reactive system, uses the Automated condtrol of the water inlet of PLC realization response device, aeration and back flushing.
2. aeration opening has been arranged within the sandy gravel stratum below zeolite layer by the utility model, makes aeration effect more obvious.
3. the utility model being provided with can play the sandy gravel stratum of support effect, to prevent and treat the loss of zeolite; And supporting layer employing is sandy gravel stratum or macrobead zeolite layer, compares cobble supporting layer, material footpath is less, and zeolite can be prevented to run off in cobble gap.
In addition, the utility model, compared with traditional BAF, has following outstanding advantages:
(1) using natural zeolite cheap and easy to get as the filtrate of BAF, reduced investment, running cost are low, the impact load of resistance to influent ammonia nitrogen and under cold condition denitrification effect good.
(2) compared with ceramics filling, zeolite filler porosity is high, and microorganism can go deep into granule interior space, and load of microorganisms amount is large, and reactor more effectively can remove ammonia nitrogen.
(3) utilize zeolite to the adsorption selection characteristic of ammonia nitrogen, zeolite is conducive to the apposition growth of heterotrophic bacterium and nitrobacteria as the filtrate of BAF, zeolite is to NH
4 +exchange adsorption make NH
4 +ion enrichment is in zeolite surface and inside, and zeolite granular has unique aerobic-anaerobic microenvironment makes NH
4 +nitrated by nitrifier on zeolite, realize the dynamic biological regeneration of zeolite, solve the difficult problem that after zeolite adsorption ammonia nitrogen, regeneration cost is high, operation easier is large.
(4) zeolite filler overcomes ceramics filling surface knot glaze, opens the low shortcoming of voidage, does not also need preparation process and the equipment of high temperature sintering, save energy, reduces aerating biological filter pool filler cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
What the utility model disclosed is a kind of rising streaming zeolite biological aerated filter reactive system, as shown in Figure 1, is preferred embodiment of the present utility model.Described reactive system comprises reactor 1 and PLC 2.Wherein:
Described reactor 1 is inner is provided with filtrate back up pad 11 near bottom position, filtrate back up pad 11 is provided with many filter openings 12 and is used for into water air inlet.The top of the filtrate back up pad 11 in this reactor 1 is inserted gravel and is formed sandy gravel stratum 3, inserts zeolite again and form zeolite layer 4 above sandy gravel stratum 3.The sidewall of this reactor 1 is provided with water outlet 13, back flushing water-in 14, aeration opening 15, back flushing inlet mouth 16, water-in 17 and some thief holes 18.This water outlet 13 is arranged on the top of zeolite layer 4, its by rising pipe with go out bucket 5 and be connected; This back flushing water-in 14, back flushing inlet mouth 16 and water-in 17 are all arranged on the below of filtrate back up pad 11, and are connected with back flushing intake pump 61, back flushing aeration pump 8 and intake pump 91 respectively by pipeline; This aeration opening 15 is positioned within sandy gravel stratum 3, and it is connected by road with aeration pump 71.In addition, described back flushing intake pump 61 connects back flushing water inlet bucket 62; Described intake pump 91 connects water inlet bucket 92; Pipeline between described aeration pump 71 and aeration opening 15 can be arranged a gas meter 72, to control air input.
Described PLC 2 is automation control systems of reactor, controls in real time, automatic open close as required to above-mentioned all water pumps and air pump, and periodic cycle back flushing.
Described sandy gravel stratum 3 plays support effect, can prevent and treat the loss of zeolite, and this sandy gravel stratum 3 also can replace with the macrobead zeolite layer that particle diameter is larger compared with upper strata zeolite layer 4 material footpath.Described zeolite layer 4 both can adsorption selection denitrogenation, can make heterotrophic bacteria and nitrobacteria apposition growth thus biological denitrificaion again, realize the biodynamic regeneration of zeolite as the carrier of microorganism growth.More specifically, the height of described zeolite layer 4 is greater than 5 times of sandy gravel stratum 3 height, and the zeolite filler of this zeolite layer 4 can select particle diameter to be the natural zeolite of 4-8mm.
Principle of work of the present utility model is: the sewage containing ammonia nitrogen is injected in reactor 1 by intake pump 91, from bottom to top through the filtration of sandy gravel stratum 3 and zeolite layer 4; Meanwhile, air is passed in reactor 1 by aeration pump 71; In whole reaction process, PLC 2 controls in real time intake pump 91 and aeration pump 71 and to intake in reactor 1 air inlet, and water inlet speed and feed rate are controlled by intake pump 91 and gas meter 72 respectively; Time phases different within reaction time passes through thief hole 18 water sampling or mud sample, to monitor; After reaction terminates, go out bucket 5 and collect water outlet; After reaction one-period, started by PLC 2 periodicity control back flushing intake pump 61 and back flushing aeration pump 8, rinse reactor 1, the back flushing stage, intake pump 91 and aeration pump 71 do not work, thus realize automated periodic circulation back flushing.
The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model to be imposed any restrictions, therefore the change in every case done according to claim of the present utility model and specification sheets or modification, all should belong within scope that the utility model patent contains.
Claims (5)
1. a rising streaming zeolite biological aerated filter reactive system, is characterized in that: comprise reactor (1) and PLC (2); This inside reactor is provided with filtrate back up pad (11) near bottom position, and filtrate back up pad (11) is provided with many filter openings (12); Insert gravel above this filtrate back up pad and form sandy gravel stratum (3), above sandy gravel stratum, insert zeolite again form zeolite layer (4); The sidewall of this reactor is provided with water outlet (13), back flushing water-in (14), aeration opening (15), back flushing inlet mouth (16), water-in (17) and some thief holes (18); This water outlet is arranged on the top of zeolite layer, its by rising pipe with go out bucket (5) and be connected; This back flushing water-in, back flushing inlet mouth and water-in are all arranged on the below of filtrate back up pad, and are connected with back flushing intake pump (61), back flushing aeration pump (8) and intake pump (91) respectively by pipeline; This aeration opening is positioned within sandy gravel stratum, and it is connected by road with aeration pump (71); In addition, described back flushing intake pump connects back flushing water inlet bucket (62); Described intake pump connects water inlet bucket (92); Described PLC controls all water pumps and air pump in real time.
2. a kind of rising streaming zeolite biological aerated filter reactive system according to claim 1, is characterized in that: the pipeline between described aeration pump (71) and aeration opening (15) is provided with a gas meter (72).
3. a kind of rising streaming zeolite biological aerated filter reactive system according to claim 1, is characterized in that: the height of described zeolite layer is greater than 5 times of sandy gravel stratum height.
4. a kind of rising streaming zeolite biological aerated filter reactive system according to claim 1, is characterized in that: the zeolite filler of described zeolite layer selects particle diameter to be the natural zeolite of 4-8mm.
5. according to the one rising streaming zeolite biological aerated filter reactive system one of claim 1-4 Suo Shu, it is characterized in that: described sandy gravel stratum replaces with the macrobead zeolite layer that particle diameter is larger compared with zeolite layered material footpath, upper strata.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420625160.0U CN204079585U (en) | 2014-10-27 | 2014-10-27 | A kind of rising streaming zeolite biological aerated filter reactive system |
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| CN201420625160.0U CN204079585U (en) | 2014-10-27 | 2014-10-27 | A kind of rising streaming zeolite biological aerated filter reactive system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858870A (en) * | 2016-06-08 | 2016-08-17 | 中国水利水电科学研究院 | Biological aerated filter treatment system with automatic control function |
-
2014
- 2014-10-27 CN CN201420625160.0U patent/CN204079585U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858870A (en) * | 2016-06-08 | 2016-08-17 | 中国水利水电科学研究院 | Biological aerated filter treatment system with automatic control function |
| CN105858870B (en) * | 2016-06-08 | 2019-02-01 | 中国水利水电科学研究院 | A kind of aeration biological filter chamber treatment system with automatic control |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20191027 |
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| CF01 | Termination of patent right due to non-payment of annual fee |