CN204417280U - The device of Biological Pretreatment and film coupling integral system process villages and small towns tap water - Google Patents

The device of Biological Pretreatment and film coupling integral system process villages and small towns tap water Download PDF

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Publication number
CN204417280U
CN204417280U CN201420579637.6U CN201420579637U CN204417280U CN 204417280 U CN204417280 U CN 204417280U CN 201420579637 U CN201420579637 U CN 201420579637U CN 204417280 U CN204417280 U CN 204417280U
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China
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water
film
hollow
fibre membrane
water outlet
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Expired - Fee Related
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CN201420579637.6U
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Chinese (zh)
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张亚雷
夏圣骥
陈文�
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Tongji University
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Tongji University
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Abstract

The utility model relates to the device of a kind of Biological Pretreatment and film coupling integral system process villages and small towns tap water, comprises bio-reaction system, retains loop and infiltration loop.Bio-reaction system comprises water-in, dosing mouth, blodisc, aerated conduit, sludge pipe, airhood and biological regulating reservoir, retain loop and comprise surge pump, under meter and reflux line, infiltration loop comprises film water-in, film water outlet and hollow-fibre membrane external-compression type assembly, hollow-fibre membrane external-compression type component bottom is successively by film water-in, under meter, surge pump is connected biological regulating reservoir top water outlet with pipeline, hollow-fibre membrane external-compression type assembly top is connected biological regulating reservoir by back flushing water outlet with reflux line, hollow-fibre membrane external-compression type assembly side is provided with film water outlet.The utility model can realize automatic operating, Highly Effective, operates simple and easy, can effectively remove the pollutents such as disease caused by infectious water bacterium, organism and high fluorine, reduces cost of investment, and stable water outlet, be easy to safeguard.

Description

The device of Biological Pretreatment and film coupling integral system process villages and small towns tap water
Technical field
The utility model belongs to environmental technology field, relates to the purification techniques containing germ, organism and high fluorine villages and small towns tap water, the specifically device of a kind of Biological Pretreatment and film coupling integral system process villages and small towns tap water.
Background technology
Water environment pollution become within the scope of the world today with shortage of water resources the problem of depositing.A large amount of trade effluent and sanitary sewage is unprocessed or only through simple process just to natural water body continued emissions, and the non-point pollution that vast Rural areas uses the agrochemicals such as chemical fertilizer, agricultural chemicals to cause surface water unreasonably, all cause the continuous aggravation of China's water environment pollution, source quality constantly declines.The transmissible diseases such as cholera, typhoid fever, bacillary dysentery are repeatedly broken out in some cities of 19th-century America and Europe, in order to effectively control spreading of this disease caused because of pollution of waterhead, have developed filtration water purification technology as filtered technology slowly.To twentieth century, water purification technology develops into the conventional water-purifying process of coagulation, precipitation, filtration and sterilization gradually by single filtration.Conventional water treatment process mainly can remove suspended solids in water, colloidalmaterial and germ; Its treatment process has certain removal effect to the organic pollutant in water.The major objective that conventional drinking water treatment technique is technology controlling and process with the turbidity of water outlet, colourity and total plate count.
For the water source that water quality is good, conventional drinking water treatment technique can obtain the tap water of safety approval; But along with going from bad to worse of source quality, conventional water treatment process limitation just show up.Main manifestations is that Polluted raw water can only remove 20% ~ 30% of Organic substance in water through conventional coagulation, precipitation and filtration process, and due to the existence of dissolved organic matter, be unfavorable for destroying the stability of colloid and conventional drinking water treatment technique is also obviously declined to raw water turbidity removal effect.Improve treatment effect by the mode increasing consuming amount of concrete, not only make cost of water treatment increase, and underwater gold may be made to belong to ionic concn increase, be unfavorable for HUMAN HEALTH; Conventional drinking water treatment technique does not have obvious removal effect to micro quantity organic pollutant in water, Organic substance in water quantity, the especially quantity of toxic pollutants, and change is little afterwards before treatment; The halides that prechlorination produces is in coagulation, precipitation and can not effectively remove in filtering.
Therefore in the contaminated situation in water source, due to the limitation of conventional drinking water treatment technique, the Drinking Water security after process is difficult to ensure, can not adapt with existing water source and water quality standard, must develop new water technology.In order to carry out safe and effective process to source water, ensure drinking-water quality.
The maximum feature of membrane separation technique can thoroughly remove particulate, colloid, bacterium and fractionated viral in water.Membrane sepn is mechanical grading mainly, and being greater than the particulate of membrane pore size and colloidalmaterial can not be through, the substance being less than its aperture through.Sometimes, film also can make them form a dynamic filtering layer on film surface when stoping and being greater than particulate and the colloidalmaterial of membrane pore size, they have barrier action to water pollutant, and this is also film one of principle that can be separated the material being less than its aperture sometimes.Given this, film has excellent removal to turbidity in water and bacterium, is to replace one of very promising method of conventional Water purification.
Biological treatment is technology water pollutant being removed by the metabolism of microorganism, its advantage is the precursor that can reduce the organic substrate of microbial reproduction in water distribution system, reduce stink, reduce Chlorination Disinfection By-products, extends the life cycle of subsequent technique.Shortcoming is that initial cost is large, and bacteria metabolism activity is by Water Temperature.Because the natural organic matters such as humic acid are biolytic final products, not biodegradable, biological treatment often can not separately for removing humic acid.Therefore, in the urgent need to a kind of coupling treatment process.
Summary of the invention
For above-mentioned deficiency, the purpose of this utility model is the device providing a kind of Biological Pretreatment and film coupling integral system process villages and small towns tap water.Because hollow-fibre membrane is without supporter, there is very large filling density, in unit volume, can a lot of membrane areas be held, so select HQM series polypropylenes hollow-fibre membrane and the series modified ps hollow fiber uf membrane of HQM in the utility model.This device not only can effectively remove the pollutents such as germ, organism and high fluorine, reduces the pollution to villages and small towns tap water, is also beneficial to the intensive of device simultaneously and reduces cost of investment.
The device of the Biological Pretreatment that the utility model proposes and film coupling integral system process villages and small towns tap water, comprise bio-reaction system, retain loop and infiltration loop, wherein: bio-reaction system comprises water-in 1, dosing mouth 2, blodisc 3, aerated conduit 4, sludge pipe 13, airhood 14 and biological regulating reservoir 15, described biological regulating reservoir 15 top is provided with airhood 14, blodisc 3 is provided with in it, bottom is provided with sludge pipe 13 and aerated conduit 4, and the air-operated drive airhood 14 discharged from aerated conduit 4 makes blodisc 3 rotate; Retain loop and comprise surge pump 5, under meter 6 and reflux line 12, infiltration loop comprises film water-in 7, film water outlet 9 and hollow-fibre membrane external-compression type assembly 8, biological regulating reservoir 15 top water outlet is connected with pipeline by film water-in 7, under meter 6, surge pump 5 successively bottom hollow-fibre membrane external-compression type assembly 8, hollow-fibre membrane external-compression type assembly 8 top is connected biological regulating reservoir 15 by back flushing water outlet 11 with reflux line 12, and hollow-fibre membrane external-compression type assembly 8 side is provided with film water outlet 9.
In the utility model, the pipeline of film water-in 7 is provided with back flushing water-in 10, doubles as outlet conduit.
The working method of the device of the Biological Pretreatment that the utility model proposes and film coupling integral system process villages and small towns tap water, concrete steps are as follows:
Pretreated villages and small towns tap water is flowed into biological regulating reservoir by water-in, aeration time is regulated according to actual motion condition, by metabolism and the throwing out of microorganism, reduce the organic substrate of microbial reproduction in water distribution system, reduce stink, reduce the precursor of Chlorination Disinfection By-products water pollutant is removed.And to dosing coagulant in biological regulating reservoir, catching the mechanisms such as volume is swept, adsorption bridging by compression double electric layer, electrical counteract, net makes water-borne glue body, suspended particle etc. form flco, change the distribution of sizes of suspended particle in former water, make to be used alone small-particle that microfiltration membrane cannot retain and dissolubility pollutant is effectively removed, improve treatment effect and membrane flux, strengthening removal effect, removed pollutent is deposited to bottom pond and is discharged by sludge pipe.Device is optimized suction time by water pump, makes aqueous sample stream enter next treatment unit through hollow-fibre membrane.Regularly need carry out back flushing to hollow-fibre membrane for extending its work-ing life, collecting backwashing water and passing back into biological regulating reservoir, processing further.To hollow fiber film assembly by the adjustment of pressure control system realization to operation conditions.
In the utility model, the pre-treatment of waste water refers to: filter, precipitate the suspended impurity removed in waste water.
In the utility model, described pollutent refers at least one in germ, organism and high fluorine.
the beneficial effects of the utility model are:
The utility model compared with prior art, remarkable advantage is: membrane technique and biological pre-treatment process are in conjunction with coupling, in order to reduce the processing load of film, improve the removal effect to disease caused by infectious water bacterium, organism and high fluorine etc., effective control delivery turbidity, ensure the biological safety of water outlet, have huge technology and economic advantages.
Accompanying drawing explanation
Fig. 1 is device schematic diagram of the present utility model.
Number in the figure: 1 is water-in, 2 is dosing mouth, and 3 is blodisc, 4 is aerated conduit, and 5 is surge pump, and 6 is under meter, 7 is film water-in, and 8 is hollow-fibre membrane external-compression type assembly, and 9 is film water outlet, 10 is back flushing water-in, 11 is back flushing water outlet, and 12 for retaining return, and 13 is sludge pipe, 14 is airhood, and 15 is biological regulating reservoir.
Embodiment
Further illustrate the utility model by the following examples:
Embodiment 1: as shown in Figure 1, described device comprises bio-reaction system, retains loop, permeates loop, wherein bio-reaction system comprises water-in 1, dosing mouth 2, blodisc 3, aerated conduit 4, sludge pipe 13, airhood 14 and biological regulating reservoir 15, the air-operated drive airhood 14 discharged from aerated conduit 4 makes blodisc 3 rotate.Retain district and comprise surge pump 5, under meter 6 and reflux line 12, infiltration area comprises film water-in 7, film water outlet 9 and hollow-fibre membrane external-compression type assembly 8, for separating of pollutent, and back flushing water outlet 11, back flushing water-in 10.Membranous system needs pressure control system to regulate when running.
Said apparatus is adopted to add villages and small towns tap water in reactive system:
Villages and small towns tap water flows into biological regulating reservoir 15 from water-in 1, the aeration time of aerated conduit 4 is regulated according to actual motion condition, the air-operated drive airhood 14 discharged from aeration tube makes blodisc 3 rotate, by the metabolism of microorganism and throwing out on blodisc 3, reduce the organic substrate of microbial reproduction in water distribution system, reduce stink, the precursor reducing Chlorination Disinfection By-products makes water pollutant be removed, drop into coagulated agent to dosing mouth 2 simultaneously, pass through compression double electric layer, electrical counteract, net is caught volume and is swept, the mechanisms such as adsorption bridging make suspended particle, small organic molecule, the formation such as heavy metal flco deposits at the bottom of pond is discharged by sludge pipe 13.Outlet valve and surge pump 5 is opened after for some time, by circulating in surge pump 5 thrust unit, water sample enters hollow-fibre membrane external-compression type assembly 8 by under meter 6, the central nozzle water inlet that water sample distributes from film water-in 7 through containing 6 passages, be that advection shape is through film surface cross-flow in hollow-fibre membrane external-compression type assembly 8, FA enters fiber endoporus through tubular fibre membranous wall under pressure difference promotes becomes ultrafiltrated, next treatment unit is entered from film water outlet 9 outflow again through afflux, all the other are then condensed to concentrated solution and flow out through the return 12 that retains of the assembly housing the other end containing the central dispense manifold Ji Kou of 6 pore distributions, enter bio-reaction zone.Because fiber is in the natural boundling of rule, when stoste flows between fiber, in height cross-flow state under higher flow velocity, more favourable to the concentration polarization overcoming film surface detention layer, resistant amount (resistant space) is larger, can adapt to broader influent quality or feed conditions, reduce pretreatment technology and cost thereof, MF permeate liquid is without dead angle.And in the apparatus in order to solve the difficulty of blocking and back flushing, the full automatic back-purge system of Aided design, left side valve is closed at film water-in 7 place, clear water flows from bottom to top from back flushing water-in 10, backwashing water flows into biological respinse sound zone system from top water outlet through reflux line 12, completes and once circulates.

Claims (2)

1. the device of a Biological Pretreatment and film coupling integral system process villages and small towns tap water, comprise bio-reaction system, retain loop and infiltration loop, it is characterized in that: bio-reaction system comprises water-in (1), dosing mouth (2), blodisc (3), aerated conduit (4), sludge pipe (13), airhood (14) and biological regulating reservoir (15), described biological regulating reservoir (15) top is provided with airhood (14), blodisc (3) is provided with in it, bottom is provided with sludge pipe (13) and aerated conduit (4), the air-operated drive airhood (14) discharged from aerated conduit (4) makes blodisc (3) rotate, retain loop and comprise surge pump (5), under meter (6) and reflux line (12), infiltration loop comprises film water-in (7), film water outlet (9) and hollow-fibre membrane external-compression type assembly (8), hollow-fibre membrane external-compression type assembly (8) bottom is successively by film water-in (7), under meter (6), surge pump (5) is connected biological regulating reservoir (15) top water outlet with pipeline, hollow-fibre membrane external-compression type assembly (8) top is connected biological regulating reservoir (15) by back flushing water outlet (11) with reflux line (12), hollow-fibre membrane external-compression type assembly (8) side is provided with film water outlet (9).
2. the device of Biological Pretreatment according to claim 1 and film coupling integral system process villages and small towns tap water, is characterized in that the pipeline of film water-in (7) is provided with back flushing water-in (10), doubles as outlet conduit.
CN201420579637.6U 2014-10-09 2014-10-09 The device of Biological Pretreatment and film coupling integral system process villages and small towns tap water Expired - Fee Related CN204417280U (en)

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CN201420579637.6U CN204417280U (en) 2014-10-09 2014-10-09 The device of Biological Pretreatment and film coupling integral system process villages and small towns tap water

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Application Number Priority Date Filing Date Title
CN201420579637.6U CN204417280U (en) 2014-10-09 2014-10-09 The device of Biological Pretreatment and film coupling integral system process villages and small towns tap water

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105461181A (en) * 2016-01-19 2016-04-06 清华大学 Sewage treatment system and application thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105461181A (en) * 2016-01-19 2016-04-06 清华大学 Sewage treatment system and application thereof

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