CN205556397U - A multistage bological aerated filter for quality of water purifies - Google Patents
A multistage bological aerated filter for quality of water purifies Download PDFInfo
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- CN205556397U CN205556397U CN201620264501.5U CN201620264501U CN205556397U CN 205556397 U CN205556397 U CN 205556397U CN 201620264501 U CN201620264501 U CN 201620264501U CN 205556397 U CN205556397 U CN 205556397U
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Abstract
The utility model relates to a multistage bological aerated filter for quality of water purifies, including sequentially through prefilter group, filtering pond body and membrane bioreactor that the water pipe concatenated in proper order, the filtering pond body contains a plurality of reaction zones that concatenate sequentially, and wherein the chopped -off head reaction zone adopts the lower extreme to intake the upper end to go out the upflow mode of water, and wherein second order reaction adopts in the district upper end to intake the lower extreme to go out the downward stream mode of water, all the reaction zone is upflow mode and downward stream mode hocket, the reaction zone is anoxic zone or good oxygen district, and wherein the chopped -off head reaction zone is the anoxic zone, and wherein the final stage reaction zone has been the oxygen district. The utility model discloses not only structural design is reasonable, compact, and purification craft is simple moreover, and purifying effect is good, and is high -efficient convenient, green.
Description
Technical field
This utility model relates to a kind of multi-stage aeration biological filter tank for purification of water quality.
Background technology
Along with developing rapidly of China's economy and being continuously increased of population, sanitary sewage and industrial wastewater pollution degree are progressively deepened, become the one of the main reasons of China's water pollution." water environment in China publication " (2015) show, 423 trunk rivers in the whole nation, 968 states's control surface water monitoring section (some position) of 62 emphasis lakes (reservoir) have carried out water quality monitoring, I, II, III, IV, V, bad V class water quality section accounts for 3.4%, 30.4%, 29.3%, 20.9%, 6.8%, 9.2% respectively, main contamination index is COD (COD) etc., visible minimizing sewage discharge, the problem of polluted riverway ecosystem rehabilitation is in the urgent need to being paid attention to.
Traditional sewage treatment process cannot meet the demand of environmental conservation of today, such as: with A2Although the activated sludge process treatment effects that method is representative such as/O, oxidation ditch and SBR are preferably and stable, but in various degree also exist that floor space is big, energy consumption big, frowziness and the shortcoming such as unsightly；Although traditional biomembrance process relative activity sludge have floor space little, without the discharge feature such as mud and high treating effect, but it is extremely limited to process the water yield, and the treatment effect for polluted by nitrogen is the best.The one-level A standard of the urban wastewater treatment firm pollutant emission standard (GB18918-2002) that China formulates the most only meets the V class water quality standard of water environment quality standard (GB 3838-2002) simultaneously, i.e. water after sewage treatment plant processes enters natural water natural water can be made too to be contaminated, it is therefore desirable to develop a kind of more preferable sewage treatment process for the treatment of effect to solve such problem.
Utility model content
In view of the deficiencies in the prior art, technical problem to be solved in the utility model is to provide a kind of multi-stage aeration biological filter tank for purification of water quality, not only reasonable in design, compact, and it is simple to purify technique, the most convenient, environmental protection.
In order to solve above-mentioned technical problem, the technical solution of the utility model is: a kind of multi-stage aeration biological filter tank for purification of water quality, including the preliminary filtration group being sequentially connected in series through water pipe sequentially, filter tank body and membrane bioreactor, described filter tank body comprises some reaction zones concatenated sequentially, the wherein upwards stream mode of chopped-off head reaction zone employing lower end water inlet upper end water outlet, wherein the water inlet lower end water outlet of reaction zone, second level employing upper end to downward stream mode, all described reaction zones be upwards stream mode with to downward stream mode alternately, described reaction zone is anoxic zone or aerobic zone, wherein chopped-off head reaction zone is anoxic zone, wherein final stage reaction zone is aerobic zone.
Preferably, each described reaction zone is provided with plant, plant loading plate, filtrate, filtrate support bracket, aerator and gas counter washing filter head from top to bottom, being provided with the gap passed in order to root system of plant on described plant loading plate, described root system of plant is immersed in the pending water of reaction zone.
Preferably, described in employing, upwards the filtrate density of the reaction zone of stream mode is 1.0 ~ 1.05 g/cm3, the filtrate density using the described reaction zone to downward stream mode is 0.95 ~ 1.0 g/cm3, described filtrate is adopted as spherical suspending haydite, and the particle diameter of described filtrate is 5 ~ 30 mm.
Preferably, described filtrate is accepted through filtrate support bracket, and uses casing to encapsulate.
Preferably, the top of each described reaction zone is provided with backwash outlet, and the backwashing water of described counter washing filter head is back to tentatively filtration group through described backwash outlet.
Preferably, the oxygen concentration of each described anoxic zone is 0.2 ~ 0.5 mg/L, the oxygen concentration of any described aerobic zone is more than 1.0 mg/L, and wherein the oxygen concentration of chopped-off head aerobic zone is maintained at 2.0 ~ 2.5 mg/L, and the oxygen concentration every grade of follow-up aerobic zone lowers 0 ~ 0.5 mg/L.
Preferably, it is additionally provided with the nitrification liquid return duct being flowed to chopped-off head reaction zone by final stage reaction zone between described chopped-off head reaction zone and final stage reaction zone, described nitrification liquid return duct is provided with to regulate the reflux pump of reflux ratio.
Preferably, described preliminary filtration group comprises the coarse rack group and preliminary sedimentation tank being sequentially connected in series sequentially.
Preferably, described filter tank body is covered with printing opacity booth.
Compared with prior art, this utility model has the advantages that
(1) this utility model reasonable in design, compact, it is easy to dismounting is with easy to maintenance；
(2) this utility model uses anaerobic-aerobic plural serial stage to run, each stage can suitably increase and decrease the quantity of anoxic zone and aerobic zone according to the pollution level of actual sewage, reaches treatment effect and strengthens and energy-conservation dual purpose, and denitrification effect is good, process intensity is high, and impact resistance is strong；
(3) the filtrate density of each reaction zone of this utility model is different according to flow direction difference so that the filtrate in running can fully flow, and makes water-gas distribution more uniform, increases filter material surface biomembrane and waste water time, raising coefficient of oxygen utilization simultaneously；
(4) plant of the present utility model forms water plant ecosystem with the process water of filter tank body interior, root system of plant is immersed in process water, root system surface attachment has large number of biological film can increase microbial population multiformity, strengthen wastewater treatment efficiency, plant itself can provide carbon source and oxygen simultaneously, can strengthen the treatment effect of aerobic stage；
(5) in filter tank of the present utility model body is encapsulated in large-scale printing opacity booth; on the one hand can be incubated for plant in the winter time; protection plant normal growth; on the other hand the temperature of this internal process water of filter tank can be kept; avoiding that temperature is too low causes treatment effect to decline, booth can also stop sewage foul smell simultaneously；
(6) this utility model end arranges membrane bioreactor and can effectively remove microorganism and the pollutant of residual in the body water outlet of filter tank, improves effluent quality further.
The utility model is described in more detail with detailed description of the invention below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the organigram of this utility model embodiment.
In figure: 1-water pipe, 2-tentatively filtration group, 21-coarse rack group, 22-preliminary sedimentation tank, 3-filter tank body, 31-anoxic zone, 32-aerobic zone, 33-perforated plate, 34-connecting tube, 35-plant, 36-plant loading plate, 37-filtrate, 38-filtrate support bracket, 39-aerator, 310-counter washing filter head, 311-backwash outlet, 312-nitrification liquid return duct, 313-reflux pump, 314-printing opacity booth, 4-membrane bioreactor.
Detailed description of the invention
For features described above of the present utility model and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing, it is described in detail below.
As shown in Figure 1, a kind of multi-stage aeration biological filter tank for purification of water quality, including the preliminary filtration group 2 being sequentially connected in series through water pipe 1 sequentially, filter tank body 3 and membrane bioreactor 4, described filter tank body 3 comprises some reaction zones concatenated sequentially, the wherein upwards stream mode of chopped-off head reaction zone employing lower end water inlet upper end water outlet, wherein the water inlet lower end water outlet of reaction zone, second level employing upper end to downward stream mode, all described reaction zones be upwards stream mode with to downward stream mode alternately, described reaction zone is anoxic zone 31 or aerobic zone 32, wherein chopped-off head reaction zone is anoxic zone 31, wherein final stage reaction zone is aerobic zone 32, described anoxic zone 31 can be alternately arranged can not also be alternately arranged with aerobic zone 32, depending on practical situation；Aminating reaction is there is in nitrogen pollutant in described aerobic zone 32, it is decomposed into ammoniacal nitrogen by complicated organic nitrogen, it is converted into cultured water and nitrate nitrogen again by ammoniacal nitrogen generation nitration reaction, anti-nitration reaction is being there is in cultured water and nitrate nitrogen after entering described anoxic zone 31, it is reduced into nitrogen effluent sewerage, thus reaching to remove the purpose of nitrogen pollutant, remaining organic pollution is degraded to carbon dioxide under the effect of microorganism and water makes sewage be purified；Top, described reaction zone is provided with the perforated plate 33 intake in order to upper end water outlet or upper end, arranges the connecting tube 34 intake in order to lower end water outlet or lower end bottom described reaction zone.
In this utility model embodiment, each described reaction zone is provided with plant 35, plant loading plate 36, filtrate 37, filtrate support bracket 38, aerator 39 and gas counter washing filter head 310 from top to bottom, the gap passed in order to plant 35 root system it is provided with on described plant loading plate 36, described plant 35 root system is immersed in the pending water of reaction zone, described plant loading plate 36 be arranged above vegetation region, the lower section of described plant loading plate 36 is root system district, promotion ammonia nitrogen is converted into NO3-N and NO2-N by the carbon source that plant 35 root system provides, and assists sewage disposal；Can arrange according to practical situation in differential responses district and combine with the vegetation of kind in various degree, plant 35 selects to need to determine according to local natural environment and plant 35 self-characteristic, it is arranged on the plant 35 of described anoxic zone 31 based on xylophyta, comprise Herba Saussureae Involueratae, Flos Rosae Multiflorae, Flos Rosae Rugosae, jasmine, black alder etc., but it is not limited to this, it is arranged on the plant 35 of described aerobic zone 32 based on herbaceous plant, including phragmites communis, Herba Typhae, Herba Lythri Salicariae, Herba Oenanthes Javanicae, Herba Scirpi Tabernaemontani, yellow GEPU, SHIGEPU, Hydrocotyle vulgaris L. etc., but it is not limited to this.
In this utility model embodiment, described in employing, upwards filtrate 37 density of the reaction zone of stream mode is 1.0 ~ 1.05 g/cm3, filtrate 37 density using the described reaction zone to downward stream mode is 0.95 ~ 1.0 g/cm3, described filtrate 37 is adopted as spherical suspending haydite, and the particle diameter of described filtrate 37 is 5 ~ 30 mm.
In this utility model embodiment, described filtrate 37 is accepted through filtrate support bracket 38, and uses casing to encapsulate；Filter tank put into by the casing that directly will be equipped with filtrate 37 during installation, casing top has lid can directly open for adjusting filtrate 37 amount, aerator 39 or counter washing filter head 310 bottom filter tank body 3 also can directly take out casing when needing maintenance and safeguard, convenient to operation.
In this utility model embodiment, the top of each described reaction zone is provided with backwash outlet 311, and the backwashing water of described counter washing filter head 310 is back to preliminary filtration group 2 through described backwash outlet 311；Situation about penetrating according to filtrate 37 blocking and pollutant, periodically carries out air-water backwashing to filter tank body 3, and the backwashing period in differential responses stage is different, and backwashing water eventually enters into preliminary sedimentation tank 22.
In this utility model embodiment, the oxygen concentration of each described anoxic zone 31 is 0.2 ~ 0.5 mg/L, the oxygen concentration of any described aerobic zone 32 is more than 1.0 mg/L, wherein the oxygen concentration of chopped-off head aerobic zone is maintained at 2.0 ~ 2.5 mg/L, and the oxygen concentration every grade of follow-up aerobic zone lowers 0 ~ 0.5 mg/L.
In this utility model embodiment, between described chopped-off head reaction zone and final stage reaction zone, it is additionally provided with the nitrification liquid return duct 312 being flowed to chopped-off head reaction zone by final stage reaction zone, described nitrification liquid return duct 312 is provided with to regulate the reflux pump 313 of reflux ratio.
In this utility model embodiment, described preliminary filtration group 2 comprises the coarse rack group 21 and preliminary sedimentation tank 22 being sequentially connected in series sequentially.
In this utility model embodiment, described filter tank body 3 is covered with printing opacity booth 314, and described printing opacity booth 314 1 aspect is that plant 35 is warming, on the other hand can stop that foul smell overflows.
Specific works process of the present utility model comprises the steps of
(1) pending sewage first passes around described coarse rack group 21 and carries out preliminary suspended contaminant and filter；
(2) the sewage entrance preliminary sedimentation tank 22 after described coarse rack group 21 precipitates, and removes particle；
(3) remove the sewage after particle and enter described filter tank body 3, in described anoxic zone 31, oxygen carries out limited aeration and a small amount of plant 35 root system transmission oxygen supply by described aerator 39, maintains the low oxygen content of described anoxic zone 31, provides good condition for anti-nitration reaction；In described aerobic zone 32, on described filtrate 37, mineralized nitrogen is nitrate nitrogen and cultured water by the nitrifier of attachment, the most described aerator 39 and substantial amounts of plant 35 root system provide the oxygen of abundance for the microorganism in aerobic zone 32, promotion ammonia nitrogen is converted into NO3-N and NO2-N by the carbon source that plant 35 root system provides simultaneously, the nitrification liquid produced enters anoxic zone 31 by nitrification liquid and carries out denitrification process, in upwards stream mode and in downward stream mode alternation procedure, remove the sewage after particle by way of all reaction zones, it is fully contacted reaction with described filtrate 37, and repeat by way of all reaction zones, until reaching preassigned；
(4) after described filter tank body 3 processes and reach the process water of preassigned and enter membrane bioreactor 4 and carry out discharging after advanced treating.
This utility model is not limited to above-mentioned preferred forms, and anyone can draw other various forms of multi-stage aeration biological filter tanks for purification of water quality under enlightenment of the present utility model.All impartial changes done according to this utility model claim and modification, all should belong to covering scope of the present utility model.
Claims (9)
1. the multi-stage aeration biological filter tank for purification of water quality, it is characterized in that: include the preliminary filtration group being sequentially connected in series sequentially through water pipe, filter tank body and membrane bioreactor, described filter tank body comprises some reaction zones concatenated sequentially, the wherein upwards stream mode of chopped-off head reaction zone employing lower end water inlet upper end water outlet, wherein the water inlet lower end water outlet of reaction zone, second level employing upper end to downward stream mode, all described reaction zones be upwards stream mode with to downward stream mode alternately, described reaction zone is anoxic zone or aerobic zone, wherein chopped-off head reaction zone is anoxic zone, wherein final stage reaction zone is aerobic zone.
Multi-stage aeration biological filter tank for purification of water quality the most according to claim 1, it is characterized in that: each described reaction zone is provided with plant, plant loading plate, filtrate, filtrate support bracket, aerator and gas counter washing filter head from top to bottom, being provided with the gap passed in order to root system of plant on described plant loading plate, described root system of plant is immersed in the pending water of reaction zone.
Multi-stage aeration biological filter tank for purification of water quality the most according to claim 2, it is characterised in that: described in employing, upwards the filtrate density of the reaction zone of stream mode is 1.0 ~ 1.05 g/cm3, the filtrate density using the described reaction zone to downward stream mode is 0.95 ~ 1.0 g/cm3, described filtrate is adopted as spherical suspending haydite, and the particle diameter of described filtrate is 5 ~ 30 mm.
4. according to the multi-stage aeration biological filter tank for purification of water quality described in Claims 2 or 3, it is characterised in that: described filtrate is accepted through filtrate support bracket, and uses casing to encapsulate.
Multi-stage aeration biological filter tank for purification of water quality the most according to claim 2, it is characterized in that: the top of each described reaction zone is provided with backwash outlet, the backwashing water of described counter washing filter head is back to tentatively filtration group through described backwash outlet.
Multi-stage aeration biological filter tank for purification of water quality the most according to claim 1, it is characterized in that: the oxygen concentration of each described anoxic zone is 0.2 ~ 0.5 mg/L, the oxygen concentration of any described aerobic zone is more than 1.0 mg/L, wherein the oxygen concentration of chopped-off head aerobic zone is maintained at 2.0 ~ 2.5 mg/L, and the oxygen concentration every grade of follow-up aerobic zone lowers 0 ~ 0.5 mg/L.
Multi-stage aeration biological filter tank for purification of water quality the most according to claim 1, it is characterized in that: be additionally provided with the nitrification liquid return duct being flowed to chopped-off head reaction zone by final stage reaction zone between described chopped-off head reaction zone and final stage reaction zone, described nitrification liquid return duct is provided with to regulate the reflux pump of reflux ratio.
Multi-stage aeration biological filter tank for purification of water quality the most according to claim 1, it is characterised in that: described preliminary filtration group comprises the coarse rack group and preliminary sedimentation tank being sequentially connected in series sequentially.
Multi-stage aeration biological filter tank for purification of water quality the most according to claim 1, it is characterised in that: described filter tank body is covered with printing opacity booth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620264501.5U CN205556397U (en) | 2016-04-01 | 2016-04-01 | A multistage bological aerated filter for quality of water purifies |
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| CN201620264501.5U CN205556397U (en) | 2016-04-01 | 2016-04-01 | A multistage bological aerated filter for quality of water purifies |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105668943A (en) * | 2016-04-01 | 2016-06-15 | 福州大学 | Multistage aeration biofilter for water quality purification and purification technique thereof |
| CN109502753A (en) * | 2018-11-23 | 2019-03-22 | 武汉理工大学 | A kind of green top formula modularization sewage classification processing system |
| CN109502752A (en) * | 2018-11-23 | 2019-03-22 | 武汉理工大学 | A kind of intelligent power saving running gear of green top formula sewage classification processing system |
| CN109502751A (en) * | 2018-11-23 | 2019-03-22 | 武汉理工大学 | A kind of green top partitioning type multistage AO integrated sewage disposal technique |
| CN110054368A (en) * | 2019-05-29 | 2019-07-26 | 宜昌朗天新型建材有限公司 | A kind of sewage disposal system based on haydite production |
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2016
- 2016-04-01 CN CN201620264501.5U patent/CN205556397U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668943A (en) * | 2016-04-01 | 2016-06-15 | 福州大学 | Multistage aeration biofilter for water quality purification and purification technique thereof |
| CN105668943B (en) * | 2016-04-01 | 2018-12-25 | 福州大学 | For the multi-stage aeration biological filter tank of purification of water quality and its purification process |
| CN109502753A (en) * | 2018-11-23 | 2019-03-22 | 武汉理工大学 | A kind of green top formula modularization sewage classification processing system |
| CN109502752A (en) * | 2018-11-23 | 2019-03-22 | 武汉理工大学 | A kind of intelligent power saving running gear of green top formula sewage classification processing system |
| CN109502751A (en) * | 2018-11-23 | 2019-03-22 | 武汉理工大学 | A kind of green top partitioning type multistage AO integrated sewage disposal technique |
| CN109502752B (en) * | 2018-11-23 | 2021-09-07 | 武汉理工大学 | Intelligent energy-saving operation device of green top type sewage grading treatment system |
| CN109502753B (en) * | 2018-11-23 | 2021-09-07 | 武汉理工大学 | Green top formula modularization sewage stage treatment system |
| CN110054368A (en) * | 2019-05-29 | 2019-07-26 | 宜昌朗天新型建材有限公司 | A kind of sewage disposal system based on haydite production |
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