CN103601339A - Process system for synergically removing Fe, Mn and ammonia nitrogen in composite micropolluted source water - Google Patents
Process system for synergically removing Fe, Mn and ammonia nitrogen in composite micropolluted source water Download PDFInfo
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Abstract
The invention discloses a system for synergically removing Fe, Mn and ammonia nitrogen in composite micropolluted source water. For surface water treatment, the system is composed of a mix reaction precipitation system, a chemical assisted oxidation system, an air oxidation system, a filter system and a disinfection system; and for ground water treatment, the system is composed of all the components in the surface water treatment system except the mix reaction precipitation system. The system reasonably and effectively integrates many techniques, such as mass transfer oxygen charging, natural oxidation, chemical oxidation, trapping filtration, physicochemical adsorption, contact catalysis/biological oxidation and the like, and can effectively and synergically remove turbidity, chroma, Fe, Mn and ammonia nitrogen in composite micropolluted source water. The system has the technical advantages of high removal efficiency, high treatment speed, small influence by environmental factors, no side effect, simple operational management and the like, and the economic advantages of low engineering investment and low operating cost; and the system is suitable for design of new water plants, and is easy for implementing upgrading modification of the existing water plants.
Description
Technical field
The invention belongs to technical field of drinking water treatment, relate generally to the collaborative technological method of removing of Fe, Mn and ammonia nitrogen in a kind of compound micro-polluted source water, Fe, Mn and the collaborative technique of removing of ammonia nitrogen in the compound micro-polluted source water of be specifically related to that a kind of technology is integrated, flow process brief, highly-efficient treatment, system are complete.
Background technology
In recent years, China's water pollutes and is on the rise, drinking water source is also subject to pollution in various degree, the frequent appearance of compound micro-pollution such as drinking water source Fe in all parts of the country, Mn and ammonia nitrogen especially in recent years, drinking-water quality has been caused safely to direct threat, and conventional drinking water purification process has been difficult to guarantee to process the supply up to standard of rear tap water, therefore, in compound micro-polluted source water, effective removal of Fe, Mn and ammonia nitrogen combined pollutant has become one of major issue that current Drinking Water in China safety control faces.
At present, the underground water of usining in 655 cities, the whole nation is individual as having more than 400 of main resource of water supply, accounts for 61% of city sum.But along with the develop rapidly of Chinese national economy, Groundwater pollution becoming serious, the particularly northern area higher to underground water degree of dependence, be faced with the severe situation that groundwater reserves decline, water quality deterioration, water load rise; And the Fe of underground water, Mn and ammonia and nitrogen pollution have become comparatively common phenomenon, according to Chinese Ministry of Environmental Protection, 1817 groundwater sources in the whole nation are carried out to monitoring and evaluation discovery: Fe, Mn and ammonia nitrogen index exceeding standard rate is respectively 15.58%, 12.56% and 10.63%, the front three in all investigation indexs.
Because municipal sewage treatment is relatively ineffective, and chemical fertilizer is used in agriculture production in a large number, earth's surface risk of drinking water pollution is and increases the weight of trend, the river section that does not reach III class water quality only accounts for 35.8%, and this has made centralized earth's surface, China most cities drinking water source or progressively river type has been substituted for reservoir, lake type; Investigation shows, at present reservoir, account for 40.2% of the centralized drinking water source of surface water ground lake type drinking water source.And reservoir and water body in lake have the features such as capacity is large, the depth of water large, poor fluidity because of it, easily form water body layering, lower floor's Dissolved Oxygen in Water is reduced, in anoxic or anaerobic state, cause a large amount of releases of pollutent in bottom, finally cause that in bottom and intermediate water, the seasonality of Fe, Mn and ammonia-nitrogen content exceeds standard, as Laoshan reservoir, Kweiyang Ah Kazakhstan's reservoir and Gutian Area, Fujian Province Reservoir etc.
As can be seen here, it is comparatively common that urban drinking water water source is subject to the phenomenon of Fe, Mn and ammonia nitrogen combined pollution.Research shows, when concentration of iron is during higher than 0.5mg/L, water body can produce significantly smells taste and color, affects sense organ; Long-term manganese excess intake, may cause Digestive tract and skeletal diseases; And ammonia nitrogen concentration exceeds standard and can cause waterworks sterilizing process disinfectant consumption to increase and produce disgusting smelling and taste.
At present, comparatively ripe for the treatment technology of Fe, Mn and ammonia nitrogen Single Pollution index, but remove technique for compound micro-pollution synergetic that Fe, Mn and ammonia nitrogen exceed standard simultaneously, rarely have report.Current, in water, ferrimanganic removal is mainly after first by water, ionic oxide formation is high price at a middle or low price, then is filtered and realized separation by filtering layer.And common ammonia nitrogen processing method mainly contains Adsorption method, break point chlorination method and biological denitrificaion method etc., wherein Adsorption method is applied less because of shortcomings such as its Construction and operation cost are high and operational management difficulty is large; Though break point chlorination can be removed ammonia nitrogen in water, the generation risk that the increase of chlorine-throwed quantity easily causes disinfection byproduct (DBP) strengthens, thereby causes water quality safety to decline; Adopt the biological denitrificaion methods such as biological contact oxidation process or BAF to be commonly used for the biological pre-treatment process of setting up before conventional treatment process, though can reach 80% to the clearance of ammonia nitrogen in tap water, ferrimanganic is had to certain removal effect (less than 50%) simultaneously, but the impact of the factors such as its technical process is long, temperature influence is large, the cycle of operation is long, investment is large, working cost is higher, operational management difficulty is large, applies it and is extremely restricted.
Therefore, instantly a technical problem in the urgent need to address is exactly: how to propose a kind of water technology or system, to solve the problem existing in existing Technology, can work in coordination with Fe, Mn and the ammonia nitrogen effectively removed in compound micro polluted source, can shorten again processing technological flow, reduce processing cost, save construction investment and predigested running management.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of new system of removing Fe, Mn and ammonia nitrogen in compound micro polluted source of working in coordination with is provided, both can realize the catalyzed oxidation of low price ferrimanganic had been removed, can realize again the short flow process of ammonia nitrogen, efficiently remove, thereby reach with low cost, investment, save and the simple object of operational management.
To achieve these goals, the technical scheme that the present invention takes is as follows:
In compound micro-polluted source water, the collaborative process system of removing of Fe, Mn and ammonia nitrogen, comprises hybrid reaction system, for surface water is mixed, reaction, precipitation process; Chemistry assisted oxidation system, carries out chemical oxidation reaction for the lower valency ferrimanganic of the surface water to after hybrid reaction system is processed, and for to underground water at a middle or low price state ferrimanganic carry out chemical oxidation reaction; Atmospheric oxidation system, for to the surface water after hybrid reaction system and chemical assisted oxidation system are processed successively, or the underground water after chemical assisted oxidation system is processed carries out oxidizing reaction, atmospheric oxidation system is divided into aero-mechanical oxygenating system and air natural oxygenating system, aero-mechanical oxygenating system for the positive mechanical oxygenation of surface water water treatment system with Fe-Mn oxidation is become to nascent state ferro manganese composite oxides, air natural oxygenating system for the natural oxygenation of Groundwater treatment system with Fe-Mn oxidation is become to nascent state ferro manganese composite oxides; Filtering system, for removing Fe, Mn, ammonia nitrogen, suspended substance and the particulate matter of the surface water and groundwater after atmospheric oxidation system is processed; Sterilisation system, for killing the pathogenic micro-organism of the surface water and groundwater after filtering system is processed, finally exports water quality up to standard;
Wherein, surface water is connected with hybrid reaction system, chemistry assisted oxidation system is connected with hybrid reaction system and underground water respectively, the surface water of processing through chemical assisted oxidation system is connected with aero-mechanical oxygenating system, the underground water of processing through chemical assisted oxidation system is connected with air natural oxygenating system, aero-mechanical oxygenating system is connected with filtering system respectively with air natural oxygenating system, filtering system comprises filter tank, back-purge system and media regeneration system, and back-purge system is connected with filter tank respectively with media regeneration system; Filtering system is connected with sterilisation system.
The present invention also has following other technologies feature:
Described hybrid reaction system comprises mixing pit, reaction tank and settling tank, surface water directly enters mixing pit in hybrid reaction system and carries out mixing of water body and coagulating agent, then flow into reaction tank and carry out the larger floc particle of abundant flocculation reaction formation, through the precipitating action of settling tank, remove floc particle and the suspended substance in water body again, settling tank is connected with aero-mechanical oxygenating system by rising pipe.
Described chemical assisted oxidation system is comprised of dispensation apparatus, administration device and drug tube, and administration device is connected with dispensation apparatus, and administration device is connected with the water inlet pipe of air natural oxygenating system with aero-mechanical oxygenating system respectively by drug tube.
Described aero-mechanical oxygenating system can be divided into two kinds of blast aeration system and mechanical aeration systems according to the difference of oxygenation mode.
Described blast aeration system comprises aeration tank, gas pipe line, aerator, air pressurization device and gas distributing pipeline, in inside, aeration tank, be provided with gas distributing pipeline, aerator is fixed on gas distributing pipeline top, and aerator is connected with air pressurization device by gas pipe line.
Described mechanical aeration system is divided into surface aeration, three kinds of aeration and jet-flow aerations under water, described surface aeration, aerating system is by formations such as aerator, transmission shaft, electric motor, step-down gear, aeration tanks under water, the inner aerator of installing in aeration tank, aerator is connected with step-down gear with electric motor by transmission shaft.Described jet-flow aeration system consists of force (forcing) pump, jet pipe and aeration tank.
Described air natural oxygenating system be divided into upwards spray, the three kinds of modes that spray or drop downwards, described upwards sprinkling system comprises sprays pond, spray line, flusher, the bottom of spraying pond is equipped with spray line, flusher is installed on spray line top.
Described filter tank adopts air-water backwashing form, and the filtrate in filter tank adopts common homogeneous quartz sand filter media or ceramic grain filter.
Described back-purge system comprises backwash pump, air pressurization device, backwashing water pipeline, gas pipe line, suction well, between backwash pump and filter tank, by backwashing water pipeline, be connected, air pressurization device also with between filter tank is connected by gas pipe line;
Described media regeneration system comprises dosing facility and storage medicine device, and dosing facility is connected with storage medicine device, and dosing facility is connected with filter tank;
Described sterilisation system comprises that metering adds facility and storage medicine facility, and metering adds facility and is connected with the outlet conduit in storage medicine facility and filter tank respectively.
Further, described air pressurization device is air compressor machine or gas blower.
The structure formation of described aerator is tubular type, disc type, bell-jar or plate armature.
More than the described required overbottom pressure of air natural oxygenating system reaches 0.10MPa.
Described filter tank filtering velocity is 7～14m/h, and thickness of filter bed is 1.2～1.6m, and be 1～4d filtration cycle.
The described media regeneration system regeneration cycle is 1～3 year.
Mixing pit in described hybrid reaction settling system is that mechanically mixing or waterpower are mixed, and reaction tank is grid, grizzly bar, dividing plate or flap form, and settling tank is advection, inclined tube or swash plate or advection and inclined tube, or the array configuration of advection and swash plate.
Collaborative removal process system of the present invention is integrated rationally and effectively mass transfer oxygenation, natural oxidation, chemical oxidation, hold back collaborative turbidity, Fe, Mn and the ammonia nitrogen of removing in compound micro polluted source of the multiple technologies such as filtration, physical and chemical adsorption, contact catalysis/bio-oxidation, compare with existing treatment technology, advantage is as follows: have removal efficiency high (Fe, Mn and ammonia nitrogen removal 95% left and right), processing speed fast (7-14m/h filtering velocity can effectively be removed), be subject to such environmental effects little, the technical superiority such as do not have side effects, operational management is simple; There are the economic advantages such as construction investment is little, running cost is low; For surface water treatment process, saved preoxidation system, shortened technical process, reduce the generation risk of disinfection byproduct (DBP), improved water quality safety; For groundwater treatment technique, effectively utilize the pressure more than needed of the original water pump of underground water to carry out nature oxygenation realization Fe-Mn oxidation and water body oxygenation mass transfer at a low price.This invention system is not only applicable to the design of new water factory, and is easy to realize the upgrading of existing water factory; Especially for the upgrading of existing water factory, only need to set up atmospheric oxidation system and chemical assisted oxidation system, just can effectively improve the removal usefulness of Fe in water, Mn and ammonia nitrogen, guarantee effluent quality.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention.
Fig. 2 is the system architecture schematic diagram of the embodiment of the present invention.
Fig. 3 is the Northwest water factory reconstruction and extension project water cleaning systems schematic diagram in specific embodiments of the invention.
Being labeled as on accompanying drawing: a, surface water; B, underground water; C, hybrid reaction system; D, chemical assisted oxidation system; E, atmospheric oxidation system; E-1, aero-mechanical oxygenating system; E-1 ', blast aeration system; E-1 ", mechanical aeration system; E-2, air natural oxygenating system; E-2 ', sprinkling system upwards; F, filtering system; G, sterilisation system; H, back-purge system; I, media regeneration system; 1, mixing pit; 2, reaction tank; 3, settling tank; 4, dispensation apparatus; 5, administration device; 6, drug tube; 7, aeration tank; 8, gas pipe line; 9, aerator; 10, air pressurization device; 11, gas distributing pipeline; 12, filter tank; 13, filtrate; 14, backwashing pump; 15, suction well; 16, backwashing water pipeline; 17, dosing facility; 18, storage medicine device; 19, metering adds facility; 20, storage medicine facility; 21, spray pond; 22, spray line; 23, flusher; 24, water pump.
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Embodiment
The technical conceive that the present invention deals with problems is: for Surface Water Treatment Technology, compound micro-polluted source water is after the mixing of hybrid reaction settling system, reaction, precipitation process, first utilize chemical assisted oxidation system that lower valency ferrimanganic is carried out to rapid chemical oxidation, the oxide compound that makes it to form can be attached to filter material surface, thereby forms filter material surface active filter film; Through atmospheric oxidation system, carry out abundant mass transfer oxygenation again, and form nascent state ferro manganese composite oxides by oxygenizement, collaborative turbidity, colourity, Fe, Mn and the ammonia nitrogen of removing in compound micro polluted source of the effects such as filtration, physical and chemical adsorption, contact catalysis/bio-oxidation of holding back that then utilizes filtering system, final outflow water can meet the < < drinking water sanitary standard > > of country (GB5749-2006) regulation after sterilization.The front end of Surface Water Treatment Technology can not arrange preoxidation system, object is to avoid on the one hand water body middle or low price ferromanganese ion to be removed in the coagulating sedimentation stage because preoxidation process forms high price iron and manganese oxides, cannot form active oxidation film at the filter material surface of follow-up filtration process, losing the function of its catalytic elimination ammonia nitrogen, is to reduce the generation risk of disinfection byproduct (DBP) to improve its water quality safety on the other hand.
System of the present invention comprises hybrid reaction system c, for surface water a is mixed, reaction, precipitation process, by to after the mixing of coagulating agent and former water, then carry out flocculation reaction through reaction tank, finally by the precipitating action of settling tank, reach effective removal of floc particle.
Chemistry assisted oxidation system d, carries out chemical oxidation reaction for the lower valency ferrimanganic of the surface water to after hybrid reaction system c processes, and for to underground water b at a middle or low price state ferrimanganic carry out chemical oxidation reaction.Chemistry assisted oxidation system d is mainly before filter material surface forms active filter film, by adding chemical oxidizing agent oxidizing water state ferrimanganic at a middle or low price, the oxide compound that makes it to form can be attached to filter material surface, accelerate the formation of filter material surface active filter film, guarantee after atmospheric oxidation nascent state ferro manganese composite oxides in the absorption on filter membrane surface and efficiently adhere to.
Atmospheric oxidation system e, for to the surface water after hybrid reaction system c and chemical assisted oxidation system d process successively, or the underground water after chemical assisted oxidation system d processes carries out oxidizing reaction, atmospheric oxidation system e is divided into aero-mechanical oxygenating system e-1 and air natural oxygenating system e-2, aero-mechanical oxygenating system e-1 for the positive mechanical oxygenation of surface water water treatment system with Fe-Mn oxidation is become to the ferro manganese composite oxides of nascent state, main by some mechanical means, force to accelerate to water body oxygenation, make water body and oxygen obtain effective mass transfer process that fully contacts to realize oxygen molecule, and realize the oxidation process of lower valency ferrimanganic, aero-mechanical oxygenating system can be divided into blast aeration system e-1 ' and mechanical aeration system e-1 according to the difference of oxygenation mode " two kinds.Described blast aeration system e-1 ' mainly consists of aeration tank, gas pipe line, aerator, air pressurization device, gas distributing pipeline etc., described air pressurization device can adopt air compressor machine or gas blower, its pressure is mainly definite according to the aeration tank depth of water, and the structure formation of described aerator can adopt tubular type, disc type, bell-jar or flat.Described mechanical aeration system e-1 " can be divided into surface aeration, three kinds of aeration and jet-flow aerations under water; and described surface, aerating system all mainly consists of aerator, transmission shaft, electric motor, step-down gear, aeration tank etc. under water, and it is vertical etc. that described aerator can be divided into rotary brush type, rotating disc type, submersible centrifugal, deep water type, the umbrella shape of falling; Described jet-flow aeration system mainly consists of force (forcing) pump, jet pipe and aeration tank etc.
Air natural oxygenating system e-2 for the natural oxygenation of Groundwater treatment system with Fe-Mn oxidation is become to nascent state ferro manganese composite oxides, mainly utilize the overbottom pressure after underground water water pump promotes water body that water body is upwards sprayed, spray or drop downwards, can make water body form vaporificization or water droplet, and then realization carries out fully contacting to reach nature oxygenation with air, air natural oxygenating system e-2 can effectively utilize the pressure more than needed of the original water pump of underground water, not only can make water body reach droplet state to improve water body oxygenation mass transfer and to realize ferrimanganic natural oxidation at a low price, and can remove and individually descend the microbubble containing in source water to ensure the normal operation in follow-up filter tank, and effectively reduce running cost.
Filtering system f, for removing surface water after atmospheric oxidation system e processes or underground water along with nascent state ferro manganese composite oxides, ammonia nitrogen and the dissolved oxygen of water body constantly adsorbs and be attached to after active filter film, recycle collaborative Fe, Mn and the ammonia nitrogen of removing in water body of the effects such as its physical and chemical adsorption, contact catalysis/bio-oxidation; By the filteration of holding back of filtrate, effectively remove suspended substance and the particulate matter in water simultaneously.Described filtering system is mainly comprised of filter tank, back-purge system and media regeneration system etc.
Sterilisation system g, for killing the pathogenic micro-organism of the surface water and groundwater after filtering system f processes, adds by metering the mode that facility adds sterilizing agent continuously water quality is carried out disinfection, and finally exports water quality up to standard.Groundwater treatment system can not established hybrid reaction settling system, and former water can effectively utilize the pressure more than needed of the original water pump of underground water directly to enter atmospheric oxidation system to carry out mass transfer oxygenation, and follow-up system is identical with Surface Water Treatment Technology.
As depicted in figs. 1 and 2:
Surface water a is connected with hybrid reaction system c, chemistry assisted oxidation system d is connected with hybrid reaction system c and underground water b respectively, the surface water a processing through chemical assisted oxidation system d is connected with aero-mechanical oxygenating system e-1, the underground water b processing through chemical assisted oxidation system d is connected with air natural oxygenating system e-2, aero-mechanical oxygenating system e-1 is connected with filtering system f respectively with air natural oxygenating system e-2, filtering system f comprises filter tank 12, back-purge system h and media regeneration system i, back-purge system h is connected with filter tank 12 respectively with media regeneration system i, filtering system f is connected with sterilisation system g.
The surface water a treatment system of take is example, in compound micro-polluted source water, the collaborative process system of removing of Fe, Mn and ammonia nitrogen mainly comprises hybrid reaction system c, chemical assisted oxidation system d, atmospheric oxidation system e, filtering system f, sterilisation system g, between each system, by pipeline or channel, is connected.Wherein filtering system f is mainly comprised of filter tank 8, back-purge system h and media regeneration system i.
When system is normally moved, former water directly enters mixing pit 1 in hybrid reaction system c and carries out mixing of water body and coagulating agent, then flow into reaction tank 2 and carry out the larger floc particle of abundant flocculation reaction formation, then remove floc particle and the suspended substance in water body through the precipitating action of settling tank 3.Mixing pit in hybrid reaction settling system c is that mechanically mixing or waterpower are mixed, and reaction tank 2 is grid, grizzly bar, dividing plate or flap form, and settling tank 3 is advection, inclined tube or swash plate or advection and inclined tube, or the array configuration of advection and swash plate.
Chemistry assisted oxidation system d is mainly comprised of dispensation apparatus 4, administration device 5 and drug tube 6.In the process system starting period, administration device 5 adds chemical oxidizing agent on atmospheric oxidation system e inlet channel, and administration device 5 is connected by pipeline with dispensation apparatus 4, and by drug tube 6, is connected between atmospheric oxidation system e inlet channel.At system initial operating stage, move chemical assisted oxidation system d; After filter membrane maturation, chemical assisted oxidation system d can quit work, and former water directly enters atmospheric oxidation system e after hybrid reaction system c processes.
Settling tank 3 water outlets flow directly into atmospheric oxidation system e through pipeline or channel, and in this technique, air oxidation system is aero-mechanical oxygenating system e-1.Specifically take blast aeration system e-1 ' as example, and system mainly consists of aeration tank 7, gas pipe line 8, aerator 9, air pressurization device 10, gas distributing pipeline 11; By aerator 9, to water body in aeration tank 7, blast numerous air-bubble, make to reach between bubble and water body and fully contact and realize oxygen transfer process, simultaneously by water body Fe-Mn oxidation nascent state ferro manganese composite oxides at a middle or low price.Wherein air pressurization device 10 provides source of the gas to aerator 9, and air pressurization device 10 is connected by gas pipe line 8 with 9 of aerators, and aerator 9 is arranged on the gas distributing pipeline 11 that is fixed on 7 inside, aeration tank.
Water body flows directly into the filter tank 12 in filtering system f after atmospheric oxidation system e oxygenation, the function in filter tank 12 is mainly to remove turbidity, colourity, Fe, Mn and the ammonia nitrogen in water body by the ripe active filter film acting in conjunction on filtrate 13 and filtrate 13 surfaces, and wherein filtrate 13 is arranged on 12 inside, filter tank.Filter tank form adopts air-water backwash filter, economic filtering velocity can be controlled in 7～14m/h, thickness of filter bed is controlled within the scope of 1.2～1.6m, can be controlled in filtration cycle within the scope of 1～4d, and the filtrate in described filter tank adopts common homogeneous quartz sand filter media or ceramic grain filter.
Back-purge system h mainly consists of backwash pump 14, air pressurization device 10, backwashing water pipeline 16, gas pipe line 8, suction well 15, between backwash pump 14 and filter tank 12, by backwashing water pipeline 16, be connected, air pressurization device 10 also with between filter tank 12 is connected by gas pipe line 8, wherein backwash pump 14 12 provides backwashing water by pipeline from suction well 15 water suction to filter tank, and air pressurization device 10 12 provides back flushing air to filter tank.Water punching can be carried out choose reasonable according to < < Code for design of outdoor water supply engineering > > (GB50013-2006) and thickness of filter bed with air blasting intensity.Media regeneration system i utilizes the strong oxidation of oxygenant to peel off aging filter membrane to recover its original active ability, and it is mainly comprised of dosing facility 17, storage medicine device 18, and dosing facility 17 is all connected by pipeline respectively with between filter tank 12, storage medicine device 18.The oxygenant of selecting in media regeneration system i can adopt hydrogen peroxide, dioxide peroxide and the ozone etc. with strong oxidizing property, and throwing amount is definite according to filtrate amount and oxygenant kind, and the regeneration period can be controlled in 1～3 year.
Filter tank water outlet enters municipal waterworks and supplies water to user finally by sterilisation system g sterilization is laggard, sterilizing agent adds facility 19 by metering and adds continuously on the outlet conduit in filter tank 12, wherein sterilizing agent is stored in medicine facility 20, and metering adds facility 19 and all by pipeline, is connected with storing between the outlet conduit in medicine facility 20, filter tank 12.Sterilizing agent kind can adopt chlorine, clorox, dioxide peroxide etc., and dosage is according to aquifer yield, medicament kind and water outlet chlorine residue calculative determination.
When former water is underground water source, can not establish hybrid reaction settling system c, former water directly enters atmospheric oxidation system e after pressurizeing by water pump 24, and in this system, air oxidation system e is air natural oxygenating system e-2.The upwards sprinkling system e-2 ' of specifically take is example, and system comprises sprays pond 21, spray line 22, flusher 23 3 parts; Former water enters and is installed on the spray line 22 spraying in pond 21 after pressurization, more upwards sprays through flusher 23, can make water body reach droplet, thereby realize, carries out fully naturally contacting with air.And then realization carries out fully contacting to reach nature oxygenation with air.Air natural oxygenating system can effectively utilize the pressure more than needed of the original water pump of underground water, not only can make water body reach droplet state to improve water body oxygenation mass transfer and to realize ferrimanganic natural oxidation at a low price, and can remove and individually descend the microbubble containing in source water to ensure the normal operation in follow-up filter tank, and effectively reduce running cost.Described air natural oxygenation form can adopt upwards to be sprayed, sprays downwards or drop mode, more than the required overbottom pressure of described air natural oxygenating system must reach 0.10MPa.Flusher 23 in whole air natural oxygenating system is installed on spray line 22.
By two specific embodiments, further illustrate beneficial effect of the present invention more below and engineering is applied.
Embodiment 1: the Northwest's waterhead area quality of groundwater complex, and pollutant kind is more, and ferrimanganic exceeds standard the most general, and there is the seasonal form phenomenon that exceeds standard in colourity, opacity and naked eyes visible etc., and ammonia nitrogen in water source also has the trend raising year by year.Applicant proposes according to its condition of water quality and application foregoing invention technique, and has carried out the pilot plant test of 1～2 year.Pilot test system design maximum processing capability 1m
3/ h, atmospheric oxidation adopts downward spray form; Filter post adopts homogeneous quartz sand filter media, and equivalent particle diameter is 1.20mm, nonuniformity coefficient K
80=1.38, thickness of filter bed 1.2m; The ferromanganese ion concentration that secondary oxidizer adopts potassium permanganate, theoretical dosage press in water is definite, and actual throwing amount is theoretical dosage 90～110%.Pilot plant test result shows (referring to table 1), technique of the present invention can effectively realize efficient collaborative removal of Fe, Mn and ammonia nitrogen in compound micro-polluted water, delivery turbidity and colourity be controlled at all the time 0.3NTU and 10 degree below, the average removal rate of three kinds of pollutents such as all the other Fe, Mn and ammonia nitrogen can reach respectively more than 98%, 99% and 95%, and effluent quality can meet the requirement of < < drinking water sanitary standard > > (GB5749-2006) completely.
The Inlet and outlet water water quality situation (filtering velocity 12m/h) of table 1 pilot plant test system in 2011
Embodiment 2: the Northwest water factory adopts underground water source, because waterhead area is through exploitation for many years, be subject to the impact of the factors such as geologic media variation and ground environment pollution, iron, manganese index exceeding standard in underground water, part water supply well turbidity and ammonia nitrogen index seasonality exceed standard, existing simple chlorination technique can not control effectively to former water pollutant, need carry out reorganization and expansion to existing water factory.Water factory's reorganization and expansion scheme is determined and engineering design completes by contriver, process using foregoing invention.Extension Design is processed the water yield 120,000 m
3/ d, clean water treatment structures comprise between aerated reaction pond, air-water backwash filter, biological activated carbon filter, dispensing chlorination house, clean water basin, back flushing etc.Wherein aeration tank and reaction tank adopt the form of building jointly; Aeration tank design utilizes the pressure more than needed of underground water water pipe, and former water flusher is set in pond, and to reach the object of spraying degassed, atomization, oxygenation, oxidation, flusher spraying altitude press 1.0m～1.5m and designed; Reaction tank is pressed 8min design, mainly when seasonal turbidity exceeds standard, uses; Filter tank adopts cut sand filtrate air-water backwash filter, filtrate thickness 1.3m, and design filtering velocity 8.00m/h, presses 2d design filtration cycle; The medicament that assisted oxidation adds is potassium permanganate solution, and design maximum dosage is 2mg/L, and adding concentration is 4%.Water-purifying process design flow diagram as shown in Figure 3.
Above embodiment is only in order to illustrate the present invention and unrestricted technical scheme described in the invention, it will be understood by those of skill in the art that everyly do not depart from the improvement of technical solution of the present invention or be equal to replacement, all should be encompassed in claim scope of the present invention.
Claims (9)
1. the collaborative removal system of Fe, Mn and ammonia nitrogen in compound micro-polluted source water, is characterized in that, comprises hybrid reaction system (c), for surface water (a) is mixed, reaction, precipitation process, chemistry assisted oxidation system (d), carries out chemical oxidation reaction for the lower valency ferrimanganic of the surface water to after hybrid reaction system (c) is processed, and for underground water (b) middle or low price state ferrimanganic is carried out to chemical oxidation reaction, atmospheric oxidation system (e), for to the surface water after hybrid reaction system (c) and chemical assisted oxidation system (d) are processed successively, or the underground water after chemical assisted oxidation system (d) is processed carries out oxidizing reaction, atmospheric oxidation system (e) is divided into aero-mechanical oxygenating system (e-1) and air natural oxygenating system (e-2), aero-mechanical oxygenating system (e-1) for the mechanical oxygenation of surface water (a) system with Fe-Mn oxidation is become to ferro manganese composite oxides, air natural oxygenating system (e-2) for the natural oxygenation of ground water regime (b) with Fe-Mn oxidation is become to ferro manganese composite oxides, filtering system (f), for removing Fe, Mn, ammonia nitrogen, suspended substance and the particulate matter of the surface water and groundwater after atmospheric oxidation system (e) is processed, sterilisation system (g), for killing the pathogenic micro-organism of the surface water and groundwater after filtering system (f) is processed, finally exports water quality up to standard,
Wherein, surface water (a) is connected with hybrid reaction system (c), chemistry assisted oxidation system (d) is connected with hybrid reaction system (c) and underground water (b) respectively, the surface water (a) of processing through chemical assisted oxidation system (d) is connected with aero-mechanical oxygenating system (e-1), the underground water (b) of processing through chemical assisted oxidation system (d) is connected with air natural oxygenating system (e-2), aero-mechanical oxygenating system (e-1) is connected with filtering system (f) respectively with air natural oxygenating system (e-2), filtering system (f) comprises filter tank (12), back-purge system (h) and media regeneration system are (i), back-purge system (h) is (i) connected with filter tank (12) respectively with media regeneration system, filtering system (f) is connected with sterilisation system (g).
2. in compound micro-polluted source water as claimed in claim 1, Fe, Mn and ammonia nitrogen are worked in coordination with removal system, it is characterized in that:
Described hybrid reaction system (c) comprises mixing pit (1), reaction tank (2) and settling tank (3), surface water (a) directly enters mixing pit (1) in hybrid reaction system (c) and carries out mixing of water body and coagulating agent, then flow into reaction tank (2) and carry out the larger floc particle of abundant flocculation reaction formation, through the precipitating action of settling tank (3), remove floc particle and the suspended substance in water body again, settling tank (3) is connected with aero-mechanical oxygenating system (e-1) by rising pipe;
Described chemical assisted oxidation system (d) is comprised of dispensation apparatus (4), administration device (5) and drug tube (6), administration device (5) is connected with dispensation apparatus (4), and administration device (5) is connected with the water inlet pipe of air natural oxygenating system (e-2) with aero-mechanical oxygenating system (e-1) respectively by drug tube (6);
Described aero-mechanical oxygenating system (e-1) is divided into two kinds of blast aeration system (e-1 ') and mechanical aeration systems (e-1 ") according to the difference of oxygenation mode;
Described blast aeration system (e-1 ') comprises aeration tank (7), gas pipe line (8), aerator (9), air pressurization device (10) and gas distributing pipeline (11), in aeration tank, (7) inside is provided with gas distributing pipeline (11), aerator (9) is fixed on gas distributing pipeline (11) top, and aerator (9) is connected with air pressurization device (10) by gas pipe line (8);
Described mechanical aeration system (e-1 ") is divided into surface aeration, aeration and jet-flow aeration under water;
Described surface aeration, aerating system forms by aerator, transmission shaft, electric motor, step-down gear, aeration tank under water, the inner aerator of installing in aeration tank, and aerator is connected with step-down gear with electric motor by transmission shaft;
Described jet-flow aeration system consists of force (forcing) pump, jet pipe and aeration tank.
Described air natural oxygenating system (e-2) be divided into upwards spray, three kinds of modes spray or drop downwards, described upwards sprinkling system (e-2 ') comprise and spray pond (21), spray line (22), flusher (23), the bottom of spraying pond (21) is equipped with spray line (22), and flusher (23) is installed on spray line (22) top;
Described filter tank (12) adopts air-water backwashing form, and the filtrate (12) in filter tank (12) adopts common homogeneous quartz sand filter media or ceramic grain filter;
Described back-purge system (h) comprises backwash pump (14), air pressurization device (10), backwashing water pipeline (16), gas pipe line (8), suction well (15), between backwash pump (14) and filter tank (12), by backwashing water pipeline (16), be connected, air pressurization device (10) also with between filter tank (12) is connected by gas pipe line (8);
Described media regeneration system (i) comprises dosing facility (17) and storage medicine device (18), and dosing facility (17) is connected with storage medicine device (18), and dosing facility (17) is connected with filter tank (12);
Described sterilisation system (g) comprises that metering adds facility (19) and storage medicine facility (20), and metering adds facility (19) and is connected with the outlet conduit of filter tank (12) with storage medicine facility (20) respectively.
3. the collaborative removal system of Fe, Mn and ammonia nitrogen in compound micro-polluted source water as claimed in claim 1, is characterized in that: described air pressurization device (10) is air compressor machine or gas blower, and its pressure is mainly determined according to aeration tank (7) depth of water.
4. the collaborative removal system of Fe, Mn and ammonia nitrogen in compound micro-polluted source water as claimed in claim 1, is characterized in that: the structure formation of described aerator (9) is tubular type, disc type, bell-jar or plate armature.
5. the collaborative removal system of Fe, Mn and ammonia nitrogen in compound micro-polluted source water as claimed in claim 1, is characterized in that: described aerator is divided into rotary brush type, rotating disc type, submersible centrifugal, deep water type or the umbrella shape of falling is vertical.
6. the collaborative removal system of Fe, Mn and ammonia nitrogen in compound micro-polluted source water as claimed in claim 1, is characterized in that: more than the described required overbottom pressure of air natural oxygenating system (e-2) reaches 0.10MPa.
7. the collaborative removal system of Fe, Mn and ammonia nitrogen in compound micro-polluted source water as claimed in claim 1, is characterized in that: described filter tank (12) filtering velocity is 7～14m/h, and thickness of filter bed is 1.2～1.6m, and be 1～4d filtration cycle.
8. the collaborative removal system of Fe, Mn and ammonia nitrogen in compound micro-polluted source water as claimed in claim 1, is characterized in that: (i) the regeneration period is 1～3 year to described media regeneration system.
9. in compound micro-polluted source water as claimed in claim 1, Fe, Mn and ammonia nitrogen are worked in coordination with removal system, it is characterized in that: the mixing pit in described hybrid reaction settling system (c) is that mechanically mixing or waterpower are mixed, reaction tank (2) is grid, grizzly bar, dividing plate or flap form, settling tank (3) is advection, inclined tube or swash plate or advection and inclined tube, or the array configuration of advection and swash plate.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000722A (en) * | 2015-06-17 | 2015-10-28 | 西安建筑科技大学 | System for preparing active filtering materials used for removing ammonia and nitrogen in water in catalysis and oxidation mode |
| CN106745957A (en) * | 2016-11-16 | 2017-05-31 | 安徽建筑大学 | A kind of oxidation filtering demanganization method of drinking water |
| CN106746179A (en) * | 2016-11-16 | 2017-05-31 | 安徽建筑大学 | A kind of processing method of organic matter and ferrimanganic excessive source water |
| CN107032470A (en) * | 2017-06-13 | 2017-08-11 | 重庆市铜梁区宝山源矿泉水厂 | A kind of drinking water ferrimanganic removes system |
| CN111439889A (en) * | 2020-04-01 | 2020-07-24 | 吉林建筑大学 | Water circulation treatment method for cooperatively removing iron, manganese, ammonia nitrogen and organic matters in underground water |
| CN112408628A (en) * | 2020-09-29 | 2021-02-26 | 核工业北京化工冶金研究院 | Method for treating uranium and manganese containing industrial wastewater |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032927A (en) * | 1988-11-16 | 1989-05-17 | 湖南省汉寿县卫生防疫站 | Underground water circulation jet aeration facility for iron and manganese removal |
| HUT55462A (en) * | 1988-07-07 | 1991-05-28 | Eszakdunantuli Regionalis Vizm | Climated water-treating plant |
| US5075010A (en) * | 1990-12-17 | 1991-12-24 | Zhang Yun H | Ground water filter for obtaining drinking water |
| RU2087427C1 (en) * | 1996-06-20 | 1997-08-20 | Индвидуальное частное предприятие Артеменка Н.Д. "Арт-Родник" | Method of purifying underground water |
| CN2494828Y (en) * | 2001-09-14 | 2002-06-12 | 梁克诚 | Comprehensive water purifier |
| CN101041519A (en) * | 2007-02-14 | 2007-09-26 | 福建省晋江优兰发纸业有限公司 | Sewage treatment method |
| CN203613069U (en) * | 2013-11-06 | 2014-05-28 | 西安建筑科技大学 | Process system for synergistically removing Fe, Mn and ammonia nitrogen in composite micro-polluted source water |
-
2013
- 2013-11-06 CN CN201310548069.3A patent/CN103601339B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HUT55462A (en) * | 1988-07-07 | 1991-05-28 | Eszakdunantuli Regionalis Vizm | Climated water-treating plant |
| CN1032927A (en) * | 1988-11-16 | 1989-05-17 | 湖南省汉寿县卫生防疫站 | Underground water circulation jet aeration facility for iron and manganese removal |
| US5075010A (en) * | 1990-12-17 | 1991-12-24 | Zhang Yun H | Ground water filter for obtaining drinking water |
| RU2087427C1 (en) * | 1996-06-20 | 1997-08-20 | Индвидуальное частное предприятие Артеменка Н.Д. "Арт-Родник" | Method of purifying underground water |
| CN2494828Y (en) * | 2001-09-14 | 2002-06-12 | 梁克诚 | Comprehensive water purifier |
| CN101041519A (en) * | 2007-02-14 | 2007-09-26 | 福建省晋江优兰发纸业有限公司 | Sewage treatment method |
| CN203613069U (en) * | 2013-11-06 | 2014-05-28 | 西安建筑科技大学 | Process system for synergistically removing Fe, Mn and ammonia nitrogen in composite micro-polluted source water |
Non-Patent Citations (2)
| Title |
|---|
| 韩晓刚 等: "铁、锰、氨氮污染地下水源水厂净水工艺改造试验研究", 《水处理技术》, vol. 39, no. 5, 31 May 2013 (2013-05-31) * |
| 黄廷林 等: "污染水源水的扬水曝气强化化学氧化处理试验研究", 《给水排水》, vol. 34, no. 12, 31 December 2008 (2008-12-31) * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000722A (en) * | 2015-06-17 | 2015-10-28 | 西安建筑科技大学 | System for preparing active filtering materials used for removing ammonia and nitrogen in water in catalysis and oxidation mode |
| CN106745957A (en) * | 2016-11-16 | 2017-05-31 | 安徽建筑大学 | A kind of oxidation filtering demanganization method of drinking water |
| CN106746179A (en) * | 2016-11-16 | 2017-05-31 | 安徽建筑大学 | A kind of processing method of organic matter and ferrimanganic excessive source water |
| CN107032470A (en) * | 2017-06-13 | 2017-08-11 | 重庆市铜梁区宝山源矿泉水厂 | A kind of drinking water ferrimanganic removes system |
| CN111439889A (en) * | 2020-04-01 | 2020-07-24 | 吉林建筑大学 | Water circulation treatment method for cooperatively removing iron, manganese, ammonia nitrogen and organic matters in underground water |
| CN112408628A (en) * | 2020-09-29 | 2021-02-26 | 核工业北京化工冶金研究院 | Method for treating uranium and manganese containing industrial wastewater |
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