CN1962493A - Drainage processing device and drainage processing method - Google Patents
Drainage processing device and drainage processing method Download PDFInfo
- Publication number
- CN1962493A CN1962493A CNA2006101385115A CN200610138511A CN1962493A CN 1962493 A CN1962493 A CN 1962493A CN A2006101385115 A CNA2006101385115 A CN A2006101385115A CN 200610138511 A CN200610138511 A CN 200610138511A CN 1962493 A CN1962493 A CN 1962493A
- Authority
- CN
- China
- Prior art keywords
- water
- biological
- aggregation
- mentioned
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/006—Regulation methods for biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Activated Sludge Processes (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The present invention relates to a drainage processing device and drainage processing method, the topic of which is to reduce the recruitment of the flocculant and obtain nice processing water, after the processed water being biologically treated, in order to remove the soluble matter and the floatability matter containing the thalli and the biological metabolite in the biological treating water and add the flocculant to process the agglomerate process. The drainage processing device includes: a biologic reaction tank (1) for processing biological treatment on the processed water; an agglomerate reaction tank (2A), (2B) adding flocculant to the biological treating water effuent from the biologic reaction tank (1) to process agglomerate reaction; and a pressure floating segregating unit (3)for processing the solid-liquid separation on the agglomerate processing water effuent from the agglomerate reaction tank (2B). An aerating apparatus is arranged in the agglomerate reaction tank (2A) to advance the coherency through the aeration agitation and improve the pressure floating separability of the back end.
Description
Technical field
The present invention relates to drain treatment apparatus and drainage processing method, relate in particular to processed water carried out a biological disposal upon after, in order to remove dissolved matter that contains thalline and biological metabolite and the suspension material in the biological treatment of water, and when adding flocculation agent and carrying out agglomeration process, the addition of flocculation agent can be reduced, and the drain treatment apparatus and the drainage processing method of good treating water can be obtained.
Background technology
As the treatment process of organic drainage, extensively adopt biological treatment now.And in order to remove the pollution substance of suspended matter in the biological treatment of water and dissolved matter etc., perhaps water displacement is for a long time for recycle-water, and biological treatment of water is carried out agglomeration process, further carries out film and handle after agglomeration process.
For example, the spy opens in the 2005-238152 communique and discloses, carry out a biological disposal upon to containing organism water, add flocculation agent to biological treatment of water and carry out agglomeration process, agglomeration process water is carried out solid-liquid separation, with filtration unit filtering separation water, re-use the reverse osmosis membrane separation device filtered water is carried out the method that membrane sepn is handled.In addition in the method, as equipment for separating liquid from solid the come-up tripping device is disclosed.As the pressurization of equipment for separating liquid from solid come-up tripping device, compare with settling bath and to have that area is set is little of enough advantages.
When biological treatment of water is carried out agglomeration process, for the flocculation agent (inorganic flocculant) that promotes cohesion to add is the direct key element relevant with operational cost, so need to reduce its addition.But in the agglomeration process of biological treatment of water, the agglomeration process of institute dissolved organism (S-TOC), especially biological metabolite is difficulty, needs a large amount of flocculation agent usually.
Especially in recent years, the utilization again of pay attention to day by day water resources need be carried out the recovery of draining.After aquatic organism handles to carrying out of being discharged from as draining, make it reach recycling high purification, just need a large amount of flocculation agent.Therefore, in the agglomeration process of biological treatment of water, the addition that reduces flocculation agent has become a very big problem.
In addition, as the method that reduces the flocculation agent addition, though propose and with the method for polymer agglomeration auxiliary etc., need the expense of interpolation auxiliary, so present situation is need easier and inexpensive method.
[patent documentation 1] spy opens the 2005-238152 communique
Summary of the invention
In order to address the above problem, the object of the present invention is to provide, after processed water carried out a biological disposal upon, in order to remove dissolved matter that contains thalline and biological metabolite and the suspension material in the biological treatment of water, and when adding flocculation agent and carrying out agglomeration process, can reduce the addition of flocculation agent and can obtain the drain treatment apparatus and the drainage processing method of good treating water.
Present inventors are to found that above-mentioned problem makes great efforts to study, when thalline after the biological treatment and biological metabolite etc. are carried out agglomeration process, when in the aggregation groove, stirring, implement air aeration, then agglomeration process water is pressurizeed to float and separate, and can reduce the addition of flocculation agent.Find in addition, adjust to optimal pH field by the water in aggregation being, and can further improve the water quality for the treatment of water with oxygenant.
The present invention is based on insight as above and finishes, and below is main idea of the present invention.
A kind of drain treatment apparatus comprises: the biological reaction tank that processed water is carried out a biological disposal upon; With the aggregation groove that the effusive biological treatment of water interpolation of this biological reaction tank flocculation agent is carried out aggregation; And the effusive agglomeration process water of this aggregation groove carried out the pressurization come-up tripping device of solid-liquid separation, and it is characterized by, in above-mentioned aggregation groove, be provided with aerating apparatus.
Drain treatment apparatus of the present invention is characterized by, and comprises that the pH with above-mentioned aggregation trough inner water is adjusted to 3～6 pH regulator agent adding set.
Drain treatment apparatus of the present invention is characterized by, and comprises the oxygenant adding set that adds oxygenant to above-mentioned aggregation groove.
Drain treatment apparatus of the present invention is characterized by, and comprises dividing the dried up filtration unit that carries out solid-liquid separation from the effusive pressurization come-up of above-mentioned pressurization come-up tripping device.
A kind of drainage processing method comprises: the biological respinse step that processed water is carried out a biological disposal upon; Carry out the aggregation step of aggregation to adding flocculation agent from the effusive biological treatment of water of this biological respinse step; And to carry out the pressurization come-up separating step of solid-liquid separation from the effusive agglomeration process water of this aggregation step, it is characterized by, above-mentioned aggregation step is to carry out aggregation under aeration.
Drainage processing method of the present invention is characterized by, and adds the pH regulator agent in the water of above-mentioned aggregation step, and the pH of this water is adjusted to 3～6.
Drainage processing method of the present invention is characterized by, and adds oxygenant in the water of above-mentioned aggregation step.
Drainage processing method of the present invention is characterized by, and has dividing the dried up filtration step that carries out solid-liquid separation from the effusive pressurization come-up of above-mentioned pressurization come-up separating step.
Dissolved matter that contains thalline and biological metabolite in the biological treatment of water and suspension material, the especially agglomeration process of biological metabolism material be difficulty, and existing method needs a large amount of flocculation agent.But, according to the present invention, when biological treatment of water is carried out agglomeration process, stirring when carrying out agglomeration process by combined treatment by aeration (being generally air) separates the separation of carrying out throw out with being floated by pressurization, can improve coherency and solid-liquid separation, and then reached the addition that reduces flocculation agent, and can obtain good treating water.
Though the detailed mechanism of action of above-mentioned effect of the present invention is not clear, can be thought of as following reason.
Exist in the water after biological treatment, disperse to be present in the macromolecule organic that thalline in the water and dissolving exist (for example protein etc.), especially in the middle of combination agglomeration process and filtering device, think that what its filtering water was had a significant impact is protein.As the foaming that biological treating tank occurred, there is the material that has with the air affinity in a proteinic part.In the present invention, because inorganic flocculant protein under the state of thickization, is being carried out air aeration by charge neutralization, the protein of thickization becomes the state with the bubble complexing.Consequently, by the pressurization floating method, when the back segment of aggregation groove carried out solid-liquid separation, further the complexing because of micro bubble improved separation property.
In addition, iron class flocculation agent especially, pH are in slightly acidic～weakly alkaline scope, and when for example using iron(ic) chloride (ferric iron) class flocculation agent, also there is the ferrous iron of some ratios to condensing effectively in ferric iron in flocculation agent.When carrying out aeration in the aggregation groove, then this type of ferrous iron is oxidized becomes condensing effective ferric iron.In addition, add oxygenants such as hypochlorous acid to the aggregation groove, then oxidation effectiveness will further increase.And most protein have iso-electric point in the slightly acidic scope, so pH is more in acid range (for example pH3～6), and not to the dissociating of water, flocculating result is just high more more.
According to the mechanism of action as above, can a spot of flocculation agent addition obtain the treating water of high water quality by the present invention,
(1) because of the reduction of flocculation agent addition, can realize reducing the flocculation agent cost, more reduce the cost and the sludge treatment expense of neutralizing agent.
(2) can improve the pressurization come-up separation property of condensing throw out, and then realize that by the flowing water speed that improves pressurization come-up tripping device reduction is provided with the space.
(3) reduction by the flocculation agent addition improves the dried up water quality of branch with pressurizeing to float to separate, can improve the back segment processing efficiency, promptly, when back segment is provided with filtration unit, can reduce the backwash frequency of its filtration unit, and when its back segment is provided with reverse osmosis (RO) membrane separation unit, can realize preventing the dirt of its RO film.
On the basis of above-mentioned effect, carry out effective water and reclaim, utilize again.
Description of drawings
Fig. 1 is the system diagram of the embodiment of expression drain treatment apparatus of the present invention.
Fig. 2 is the system diagram of other embodiments of expression drain treatment apparatus of the present invention.
Fig. 3 is the system diagram of another embodiment of expression drain treatment apparatus of the present invention.
Fig. 4 is the system diagram of another embodiment of expression drain treatment apparatus of the present invention.
Fig. 5 is the system diagram of another embodiment of expression drain treatment apparatus of the present invention.
Nomenclature
1 biological reaction tank
2 collection surfaces
2A the 1st collection surface
2B the 2nd collection surface
2C the 3rd collection surface
3 pressurization come-up separator tanks
4 filtration units
The 5RO membrane separation unit
6 gac towers
Embodiment
Below, will describe the embodiment of drain treatment apparatus of the present invention and drainage processing method in detail.
[draining]
In the present invention, become the draining of process object so long as carried out a biological disposal upon usually, contain organic draining and get final product, it is not particularly limited.Electronic industry draining, chemical plant's draining, food factories draining etc. are for example arranged.For example, in the electronic unit manufacturing process, from developing procedure, stripping process, etching work procedure, clean operation etc. a large amount of various organic drainages take place, and draining need be reclaimed, purify to the degree of pure water and re-use, so these drainings are suitable as process object draining of the present invention.
This type of organic drainage, the organic drainage that contains Virahol, ethanol etc. is for example arranged, contain the organic nitrogen of Monoethanolamine MEA BASF (MEA), tetramethyl-ammonium oxyhydroxide (TMAH) etc., the organic drainage of ammonium nitrogen, contain the organic drainage etc. of the organosulfur yellow compound of methyl-sulphoxide (DMSO) etc.
[biological treatment]
The biological reaction tank that draining is carried out a biological disposal upon is as long as have good in organic decomposition efficiency.Can use the reactive tank of known aerobism or anaerob processing mode.For example can adopt, active sludge be remained on the mode of swimming in the groove, active sludge is attached to carrier and microbial film mode of keeping etc. with floating state.In addition, the microbial film mode can use fixed-bed type, thermopnore formula, launch microorganism bed mode arbitrarily such as bed formula, and, can use gac, various plastic cement carrier, sponge carrier etc. arbitrarily as carrier.
The mode of swimming need be provided with the equipment for separating liquid from solid of settling bath, membrane separation unit etc. from the equipment for separating liquid from solid for the treatment of water isolating active mud at the back segment of biological treatment reactive tank.And other modes are because of having kept active sludge, so equipment for separating liquid from solid that can be above-mentioned in the biological treatment reactive tank.
As carrier sponge carrier preferably, sponge carrier can be kept the microorganism of high density.Starting material to sponge are not particularly limited, but ester class polyurethane preferably.Input amount to carrier also is not particularly limited, but the common preferably tankage of relative biological reaction tank, the visual capacity of carrier is 10～50% degree.
Under the aerobism state, the oxybiotic organism reactive tank of microorganism property decomposing organic matter can use the aerator tank of oxygen feedwaies such as diffuser that oxygen supply (air) is set, aerator in groove.
On the other hand, under the anaerobism state, the anaerob reactive tank of microorganism property decomposing organic matter can use the anaerobism groove that keeps carrier and granular sludge.
Biological reaction tank can be the single groove of oxybiotic organism reactive tank or anaerob reactive tank, also can be a plurality of grooves of oxybiotic organism reactive tank and/or anaerob reactive tank, and can be in the groove of single groove partition wall to be set.
[agglomeration process]
Among the present invention, in biological reaction tank, the biological treatment of water obtained of biological treatment draining carried out agglomeration process when, when biological treatment of water is added flocculation agent, stir by aeration.
＜collection surface 〉
The aggregation groove (hereinafter referred to as " collection surface ") that agglomeration process is used can be to have only 1 groove, also can be the groove that multistage is provided with the collection surface more than 2 layers.
Agglomeration process equipment generally is made of the stirring at low speed groove of high-speed stirring groove that is used for flocculation agent and processed water are fully contacted and growth cohesion throw out.The present invention is preferably, and the stirring of being undertaken by aeration is to carry out in the high-speed stirring groove, does not use aeration to be finished the stable growthization of throw out by stirring then in the stirring at low speed groove.And when multistage was provided with 2 collection surfaces more than the groove, preferably the collection surface with leading portion was set as the air aeration groove, and the collection surface of back segment is set as mechanical agitating tank.
Air aeration amount to the air aeration groove is not particularly limited, as long as flocculation agent is reached well-beaten degree.This air aeration groove also can and be used mechanical agitating tank.
＜flocculation agent 〉
The employed flocculation agent of agglomeration process has the aluminium class flocculation agent of iron class flocculation agent, Tai-Ace S 150, aluminum chloride, poly aluminium chloride of iron(ic) chloride, polyiron sulfate etc. etc.The iron class flocculation agent preferably from the aspect of flocculating result.These inorganic flocculants can use a kind separately, also can be also with more than 2 kinds.
The addition of inorganic flocculant depends on the characteristic and the water quality of biological treatment of water, is preferably the degree of 50～300mg/L usually.
In addition, at the characteristic of draining, can by and with organic flocculation agent and come-up auxiliary, and the water quality of the agglomeration process water that further is improved and the pressurization effect separatory that floats.At this moment, organic flocculation agent can make an addition to the leading portion that inorganic flocculant adds operation, also can make an addition to back segment, and can be added in the interpolation operation of inorganic flocculant.
The addition of organic flocculation agent, because of the use form of the water quality of biological treatment of water and organic flocculation agent is different, usually, the degree of 1～10mg/L preferably.
The adjustment of＜pH 〉
In the collection surface that carries out aeration agitation, the pH during agglomeration process is preferably 3～6, by pH is adjusted in this acid range, and can improve the agglomeration process effect.When especially using iron class flocculation agent, mixing then very effectively below pH5.5 by aeration agitation, and when using aluminium class flocculation agent, after pH is mixed by aeration agitation below 5.5, then is effective with pH regulator to 6.0 when above again.
When agglomeration process equipment is made of 2 collection surfaces more than the groove, at least one collection surface of implementing the collection surface of aeration agitation can be adjusted to pH3～6, other collection surface can be adjusted to the pH value beyond pH3～6 according to the kind of draining proterties and suitable flocculation agent.
That be fit to regulate pH has hydrochloric acid (HCl), a sulfuric acid (H
2SO
4) alkali of the acid that waits or sodium hydroxide (NaOH) etc.
＜oxygenant 〉
In the aforesaid agglomeration process operation, preferably add oxygenant, can obtain better agglomeration process result.
As oxygenant can use hypochlorous acid receive in (NaClO), the Sodium Persulfate more than a kind or 2 kinds, its addition is different with the agglomeration process condition because of the water quality of biological treatment of water, usually, is preferably the degree of 1～10mg/L.
[the pressurization come-up is separated]
Then agglomeration process water is pressurizeed to float and separate, the cohesion throw out that generates is carried out solid-liquid separation.
This pressurization come-up is separated, and uses pressurization come-up tripping device usually.
The present invention by carrying out the pressurization come-up separation property that aeration improves agglomeration process water, and then the water flowing LV the pressurization come-up can be separated the time, is 4～7hr from the water flowing LV of common pressurization come-up separating treatment in agglomeration process
-1Rise to 10～20hr
-1, can realize processing efficiency raising, can reduce the space is set by the miniaturization of device.
[filtration]
Be preferably and pressurization come-up separated the branch that is obtained is dried up to be filtered with filtration unit again.This filtration unit can use the packing layer type filter of having filled filtering materials such as sand, hard coal, the film filter that uses films such as secondary filter (MF) film, semi-permeable membranes filtration (UF) film etc.
According to the present invention, carry out aeration during by agglomeration process and improve pressurization come-up separation property, and then the pressurization come-up that can obtain good water quality divides dried uply, can prevent the obstruction of this filtration unit, reduce the back flushing frequency of filtration unit, and can improve processing efficiency.
[processing of RO film]
The branch that floats pressurizeing is dried up or filter the filtration treatment water that this water obtains, and carries out the RO film by the RO membrane separation unit again and handles, and can obtain highly purified water by the deionization processing that the RO film is handled.
At this moment, before the RO film is handled, preferably remove the pressurization come-up and divide residual SS in dried up, the pressurization come-up is divided dried uply carries out filtration treatment by above-mentioned filtration unit.But also can directly divide the dried up RO film that carries out to handle to the pressurization come-up.
The RO membrane separation unit can use known any device.
The present invention can obtain good pressurization come-up with a spot of inorganic flocculant addition and divide dried up, in addition, the FI value of its filtration treatment water is low, it can be supplied water in the RO membrane separation unit, therefore, the RO membrane separation unit can be suppressed owing to dirt causes the reduction of membrane flux, treating water (infiltration water) can be obtained steadily in the long term.
In addition, the FI value is conduct, when water is carried out the deionization processing by the RO membrane separation unit, judges whether the water quality that supplies water to the RO membrane separation unit is fit to the index use that the RO film is handled.Even the amount that molten in the water deposited organism and SS is about equally, also have to its carry out the RO film when handling membrane flux reduce and do not have the phenomenon of this kind situation too early.At this moment, difference appears in the FI value of RO feedwater.
The FI value as described in the water quality assessment of back embodiment, can be measured the needed time when filtering specified amount by sample water being flow through the filtering membrane with defined aperture, by the required time at initial stage with the required time behind the flowing water tries to achieve in required time.Being used in judgement causes easily or is difficult for causing the water quality that film pollutes, film stops up.Even the general water quality of FI value below 5 also allows the RO feedwater, but is preferably the water quality of FI value below 4 usually.And then the present invention is preferably, and biological treatment of water is carried out agglomeration process and pressurization come-up separating treatment, carries out filtration treatment again, and obtains the water of FI value below 4, and it is carried out the RO film handle.
[other processing]
Moreover the present invention can be also with other processing beyond above-mentioned at the back segment of pressurization come-up tripping device.For example,, the gac tower is set, utilizes the adsorption treatment of gac for removing residual dissolved organic matter.
At this moment, be preferably the back segment that the gac tower is arranged on filtration unit, the leading portion of RO membrane separation unit.
[treatment unit]
Below, with reference to accompanying drawing, one of drain treatment apparatus of the present invention example is described.
Fig. 1～5 are the system diagram of expression one of drain treatment apparatus of the present invention example, and 1 be biological reaction tank, and 2,2A, 2B, 2C be collection surface, 3 are the pressurization separator tank that floats, and 4 is filtration unit, and 5 is the RO membrane separation unit, and 6 is the gac tower.
The drain treatment apparatus of Fig. 1 be in biological reaction tank 1 biological treatment draining after, in being provided with the 1st collection surface 2A of aerating apparatus, add inorganic flocculant (for example iron class flocculation agent), oxygenant and acid, in high-speed stirring, after carrying out agglomeration process under the condition of pH3～6, import among the 2nd collection surface 2B that is provided with stirrer, add organic flocculation agent and alkali again, jogging speed stirs and carries out agglomeration process under the condition of pH5～8, the pressurization come-up is separated agglomeration process water in pressurization come-up separator tank 3 then, use filtration unit 4 filtering separation water again, can obtain filtered water as treating water.
Device shown in Figure 2 is, the back segment of the filtration unit 4 of Fig. 1 has been set up RO membrane separation unit 5, carries out identical operations with the device of Fig. 1 and the filtration treatment water that obtains, carries out after deionization handles with RO membrane separation unit 5, and obtains treating water.
The device of Fig. 3 is, between filtration unit 4 in Fig. 2 device and the RO membrane separation unit 5 gac tower 6 is set, and in the 1st collection surface 2A, add inorganic flocculant (for example aluminium class flocculation agent) and oxygenant and acid or alkali, in the 2nd collection surface 2B, only add acid or alkali, the identical agglomeration process of carrying out with Fig. 1, pressurization come-up separating treatment is after the water of filtration treatment is removed residual dissolved organic matter with gac tower 6, carry out deionization with RO membrane separation unit 5 again and handle, thereby obtain treating water.
Device shown in Figure 4 is, collection surface in Fig. 2 device only is set as 1 groove, in the collection surface 2 that aerating apparatus is set, add inorganic flocculant and oxygenant and acid or alkali, after pH is to carry out agglomeration process under the weakly acidic condition, after the come-up separating treatment of pressurizeing in pressurization come-up separator tank 3, carry out filtration treatment again, treating water is handled and then obtained to the RO membrane sepn.
Device shown in Figure 5 is that the collection surface in Fig. 1 device is arranged to 3 grooves.In being provided with the 1st collection surface 2A of mechanical stirring device, add organic flocculation agent and acid or alkali to biological treatment of water, under the condition of pH5～7, carry out agglomeration process, then in the 2nd collection surface 2B, under aeration agitation, add inorganic flocculant and oxygenant and acid or alkali, under the condition of pH3～6, carry out agglomeration process.In the 3rd collection surface 2C, add acid or alkali by mechanical stirring again, carry out agglomeration process under the condition of pH6～8, the aggegation treating water obtains treating water by pressurization come-up separating treatment, filtration treatment again.
In addition, the device shown in Fig. 1～5 is the example of drain treatment apparatus of the present invention, and the present invention is not limited to any illustrated method, in the treatment unit of above-mentioned collection surface or back, also can adopt other various forms.
[embodiment]
To be described more specifically the present invention by embodiment and comparative example below.
Embodiment 1～4
Use device shown in Figure 1, carried out the processing of organic drainage according to the present invention.The water quality of handled organic drainage, the specification and the operational condition of used biological reaction tank and collection surface etc. are as follows, handle with the treatment capacity of 2400L/ day.
To take the to pressurize this moment branch of come-up separator tank is dried up, with the strainer of 0.45 μ m at 2.1kg/cm
2The filtration time of pressurized conditions when filtering down, the FI value of calculating as follows, and the filtration time length of filtration unit (filtration unit is to stopping up, and needs the filtered time length till the flushing) estimate the water quality assessment for the treatment of water, its result is as shown in table 1.
As mentioned above, be FI value below 4 to the flowing water benchmark of RO membrane separation unit, be preferably and obtain the treating water of FI value below 4.
FI＝{(1-T
0/T
15)/T
15}100
T
0: the needed time (sec) when the initial stage is filtered 500cc
T
15: after filtering beginning 15min, the needed time (sec) when filtering 500cc
[water quality of organic drainage]
BOD：1000mg/L
[biological reaction tank]
Tankage: 2400L
Aeration rate: 200L/min
Carrier:, be added into 50% of tankage with visual capacity with 3mm quadrate sponge
[the 1st collection surface]
Tankage: 50L
Inorganic flocculant: add 200mg/L (FeCl
3The conversion amount) ferric chloride in aqueous solution of 38 weight %
Oxygenant: the clorox that adds amount as shown in table 1
PH in the groove: (adjusting) as shown in table 1 by adding HCl or NaCl
Air aeration amount: 20L/min
[the 2nd collection surface]
Tankage: 50L
Organic flocculation agent: the polyacrylamide partial hydrolystate that adds 0.5mg/L
PH in the groove: (adjusting) as shown in table 1 by adding HCl or NaOH
Stirrer: flat plumage 40mm * 200mm, the blade of 60rpm stirs
[pressurization come-up separator tank]
Groove: diameter is the round shape come-up separator tank of 130mm
Pressurized water ratio: 30%
Flowing water LV:10m/hr
[filtration unit]
Filter type: gravity type boat davit double medium filtration
Filter LV:5.6m/hr
Comparative example 1
Among the embodiment 1, not air aeration, but outside the blade identical stirring, carry out same processing again with the 2nd collection surface except the whipping appts with the 1st collection surface is set as.Result is as shown in table 1.
Comparative example 2
In comparative example 1,, carry out same processing except the inorganic flocculant addition with the 1st collection surface is increased to the amount shown in the table 1.Result is as shown in table 1.
Table 1,
| Embodiment | Comparative example | ||||||
| 1 | 2 | 3 | 4 | 1 | 2 | ||
| The 1st collection surface | Inorganic flocculant (FeCl 3) addition (mg/L) | 200 | 200 | 200 | 200 | 200 | 450 |
| Oxygenant (NaClO) addition (mg/L) | 10 | 10 | 10 | - | 10 | 10 | |
| pH | 5.5 | 3.0 | 7 | 5.5 | 5.5 | 5.5 | |
| Alr mode | Air aeration | Mechanical stirring | |||||
| The 2nd collection surface pH | 5.5 | 7 | 5.5 | 5.5 | 5.5 | 5.5 | |
| Treating water FI | 2.0 | 2.1 | 3.0 | 3.3 | 5.6 | 3.8 | |
| Filter the time length (hr) | 24 | 24 | 24 | 24 | 17 | 10 | |
Can clearly draw following result from table 1.
That is, carry out in the churned mechanically comparative example 1 at the 1st collection surface, the FI value of its treating water is high, and the water quality for the treatment of water is abominable, and filters the time length also than embodiment 1～4 weak point.In the comparative example 2 that has increased the inorganic flocculant addition, it is also insufficient though the FI value is enhanced, and because of the formation of cohesion throw out with and two aspects of the affinity of throw out and bubble insufficient, so pressurization come-up separation property is low, and then the filtration time length is very short.
To this, in the 1st collection surface, carry out the embodiment 1～4 of air aeration, all obtain good result, when especially adding oxygenant (embodiment 3), and the pH regulator of the 1st collection surface during to acid range (embodiment 1,2), also can be obtained good result.
Embodiment 5
In embodiment 1, except the PAC (poly aluminium chloride) that uses as inorganic flocculant to the interpolation of the 1st collection surface, when its addition is 250mg/L, outside the value shown in the pH furnishing table 2 of the 1st collection surface and the 2nd collection surface, carry out identical processing again, result is as shown in table 2.
Comparative example 3
In embodiment 5,, but outside the blade identical stirring, carry out same processing again with the 2nd collection surface except the whipping appts with the 1st collection surface is not set as air aeration.Result is as shown in table 2.
Table 2
| Embodiment 5 | Comparative example 3 | ||
| The 1st collection surface | Inorganic flocculant (PAC) addition (mg/L) | 250 | 250 |
| Oxygenant (NaClO) addition (mg/L) | 10 | 10 | |
| pH | 6.0 | 6.0 | |
| Alr mode | Air aeration | Mechanical stirring | |
| The 2nd collection surface pH | 6.0 | 6.0 | |
| Treating water FI | 3.9 | 6.0 | |
| Filter the time length (hr) | 17 | 10 | |
According to table 2, when knowing, also can obtain the effect of the present invention of utilizing air aeration as inorganic flocculant use PAC.In addition, comparative example 5 and comparative example 3 can find that the FI value of embodiment 5 is better than comparative example 3, filter the time length also than comparative example 3 length.
Claims (10)
1, a kind of drain treatment apparatus is to comprise:
The biological reaction tank that processed water is carried out a biological disposal upon;
With to adding the aggregation groove that flocculation agent carries out aggregation from the effusive biological treatment of water of this biological reaction tank;
With the drain treatment apparatus of tripping device that the pressurization of carrying out solid-liquid separation from the effusive agglomeration process water of this aggregation groove is floated,
It is characterized by, be provided with aerating apparatus at above-mentioned aggregation groove.
2, drain treatment apparatus as claimed in claim 1 is characterized by, and also comprises, the pH that adjusts pH to 3～6 of above-mentioned aggregation trough inner water adjusts the agent adding set.
3, drain treatment apparatus as claimed in claim 1 is characterized by, and also comprises, adds the oxygenant adding set of oxygenant to above-mentioned agglutination reaction groove.
4, drain treatment apparatus as claimed in claim 2 is characterized by, and also comprises, adds the oxygenant adding set of oxygenant to above-mentioned agglutination reaction groove.
5, as any described drain treatment apparatus of claim 1～4, it is characterized by, also comprise, dividing the dried up filtration unit that carries out solid-liquid separation from the effusive pressurization come-up of above-mentioned pressurization come-up tripping device.
6, a kind of drainage processing method is to comprise:
The biological respinse step that processed water is carried out a biological disposal upon;
With to adding the aggregation step that flocculation agent carries out aggregation from the effusive biological treatment of water of this biological reaction tank
With the drainage processing method of separating step that the pressurization of carrying out solid-liquid separation from the effusive agglomeration process water of this aggregation groove is floated,
It is characterized by, in above-mentioned aggregation step, under aeration, carry out aggregation.
7, drainage processing method as claimed in claim 6 is characterized by, and adds the pH regulator agent in the water in above-mentioned aggregation step, adjusts pH to 3～6 of this water.
8, drainage processing method as claimed in claim 6 is characterized by, and adds oxygenant to above-mentioned agglutination reaction step.
9, drainage processing method as claimed in claim 7 is characterized by, and adds oxygenant to above-mentioned agglutination reaction step.
10, as any described drain treatment apparatus of claim 6～9, it is characterized by, dividing the dried up solid-liquid separation of carrying out from the effusive pressurization come-up of above-mentioned pressurization come-up separating step.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005323791 | 2005-11-08 | ||
| JP2005323791A JP4862361B2 (en) | 2005-11-08 | 2005-11-08 | Waste water treatment apparatus and waste water treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1962493A true CN1962493A (en) | 2007-05-16 |
Family
ID=38081749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101385115A Pending CN1962493A (en) | 2005-11-08 | 2006-11-07 | Drainage processing device and drainage processing method |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4862361B2 (en) |
| KR (1) | KR101335186B1 (en) |
| CN (1) | CN1962493A (en) |
| SG (1) | SG132606A1 (en) |
| TW (1) | TW200823153A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103930376A (en) * | 2012-04-12 | 2014-07-16 | Posco建设有限公司 | Wastewater-purifying apparatus and wastewater-purifying method |
| CN106045117A (en) * | 2016-07-12 | 2016-10-26 | 大连海事大学 | Method for treating waste liquor with floating coagulation method |
| JP2022075903A (en) * | 2018-07-09 | 2022-05-18 | 栗田工業株式会社 | Producing method and apparatus for clean water |
| TWI772317B (en) * | 2016-08-08 | 2022-08-01 | 日商奧璐佳瑙股份有限公司 | Membrane filtration method and membrane filtration system |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4996388B2 (en) * | 2007-08-03 | 2012-08-08 | オルガノ株式会社 | Method for treating water containing dimethyl sulfoxide and water treatment apparatus containing dimethyl sulfoxide |
| JP5239653B2 (en) * | 2008-09-04 | 2013-07-17 | 栗田工業株式会社 | Pressure levitation treatment method |
| KR100921244B1 (en) * | 2008-10-23 | 2009-10-12 | 전주시 | Food waste water processing apparatus used dissolved air flotation unit |
| JP5250444B2 (en) * | 2009-02-10 | 2013-07-31 | オルガノ株式会社 | Anaerobic biological treatment method and anaerobic biological treatment apparatus |
| CN102180560B (en) * | 2010-08-30 | 2012-07-04 | 长春工程学院 | Device and method for continuously and biologically treating urban sewage |
| JP2012223747A (en) * | 2011-04-19 | 2012-11-15 | Kikuchi Eco Earth:Kk | Water treatment system and water treating method |
| JP6194650B2 (en) * | 2013-06-14 | 2017-09-13 | 三菱ケミカル株式会社 | Water treatment method and water treatment apparatus |
| JP2019202260A (en) * | 2018-05-22 | 2019-11-28 | 積水化学工業株式会社 | Water treatment system and water treatment method |
| CN111039456A (en) * | 2019-12-24 | 2020-04-21 | 福建省晋蓝环保科技有限公司 | Efficient flocculation device for printing and dyeing sewage |
| TWI731678B (en) * | 2020-05-12 | 2021-06-21 | 中宇環保工程股份有限公司 | Method and device for treating molybdenum-containing wastewater and recovering iron molybdate crystals |
| JP7074156B2 (en) | 2020-06-01 | 2022-05-24 | 栗田工業株式会社 | Water treatment method and water treatment equipment |
| CN113548750A (en) * | 2021-07-20 | 2021-10-26 | 福建盈浩文化创意股份有限公司 | Harmless treatment method for waste glue |
| CN114057322A (en) * | 2021-11-10 | 2022-02-18 | 遵义师范学院 | Flocculation method for treating municipal road washing wastewater |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63162088A (en) * | 1986-12-24 | 1988-07-05 | Nikko Eng Kk | Floating, filtrating and concentrating device for waste water |
| JPS63252594A (en) * | 1987-04-10 | 1988-10-19 | Mitsubishi Rayon Eng Co Ltd | Aerobic biological treatment method |
| JPH0734914B2 (en) * | 1988-09-19 | 1995-04-19 | 五洋建設株式会社 | Sewage treatment method and apparatus |
| JPH07232197A (en) * | 1994-02-23 | 1995-09-05 | Kubota Corp | Advanced treatment of water and its device |
| JPH10180298A (en) * | 1996-12-20 | 1998-07-07 | Shinko Pantec Co Ltd | Treatment of waste water and waste water treating device |
| JP2000061495A (en) * | 1998-08-18 | 2000-02-29 | Takuma Co Ltd | Higher level treatment of night soil and device therefor |
| JP2001047043A (en) * | 1999-08-05 | 2001-02-20 | Hitachi Plant Eng & Constr Co Ltd | Method and apparatus for membrane filtration |
| JP3477682B2 (en) * | 2000-07-10 | 2003-12-10 | 株式会社日立製作所 | Water purification system |
| KR100408484B1 (en) * | 2000-12-20 | 2003-12-06 | 주식회사 앤바이오 | Treatment Equipment of Wastewater |
-
2005
- 2005-11-08 JP JP2005323791A patent/JP4862361B2/en active Active
-
2006
- 2006-11-01 KR KR20060107195A patent/KR101335186B1/en active IP Right Grant
- 2006-11-06 SG SG200607707-7A patent/SG132606A1/en unknown
- 2006-11-07 CN CNA2006101385115A patent/CN1962493A/en active Pending
- 2006-11-27 TW TW95140707A patent/TW200823153A/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103930376A (en) * | 2012-04-12 | 2014-07-16 | Posco建设有限公司 | Wastewater-purifying apparatus and wastewater-purifying method |
| US9346695B2 (en) | 2012-04-12 | 2016-05-24 | Posco Engineering & Construction Co., Ltd. | Apparatus for purifying wastewater and method thereof |
| CN106045117A (en) * | 2016-07-12 | 2016-10-26 | 大连海事大学 | Method for treating waste liquor with floating coagulation method |
| TWI772317B (en) * | 2016-08-08 | 2022-08-01 | 日商奧璐佳瑙股份有限公司 | Membrane filtration method and membrane filtration system |
| JP2022075903A (en) * | 2018-07-09 | 2022-05-18 | 栗田工業株式会社 | Producing method and apparatus for clean water |
| JP7380732B2 (en) | 2018-07-09 | 2023-11-15 | 栗田工業株式会社 | Clean water production method and production equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI379810B (en) | 2012-12-21 |
| TW200823153A (en) | 2008-06-01 |
| JP2007130526A (en) | 2007-05-31 |
| SG132606A1 (en) | 2007-06-28 |
| KR20070049560A (en) | 2007-05-11 |
| KR101335186B1 (en) | 2013-11-29 |
| JP4862361B2 (en) | 2012-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1962493A (en) | Drainage processing device and drainage processing method | |
| TWI494281B (en) | Apparatus for treating organic waste water | |
| JP2008264772A (en) | Membrane separation activated sludge apparatus and treatment method of organic substance-containing water | |
| CN104710080A (en) | Apparatus and Method for Treating Organic-Containing Wastewater | |
| KR20080078550A (en) | Method for biological processing of water containing organic material | |
| JP4997724B2 (en) | Organic wastewater treatment method | |
| JP2007029826A (en) | Apparatus for treating waste water and method for treating waste water using the apparatus | |
| JP4492268B2 (en) | Biological treatment equipment | |
| JP3653422B2 (en) | Waste water treatment method and waste water treatment equipment | |
| CN105948351A (en) | Water treatment system and method | |
| CN102510839A (en) | Biotreatment method for water containing organic substance | |
| JP2009072769A (en) | Sewage treatment system | |
| JP2006122795A (en) | Wastewater treatment method | |
| WO2011136043A1 (en) | Wastewater treatment device and wastewater treatment method | |
| CN108585381A (en) | A kind of brush waste water treatment system processed | |
| KR101679603B1 (en) | Water treatment apparatus using cleaning powder and submersed membranes module | |
| CN105073653A (en) | Method and device for treating organic wastewater | |
| CN107879562A (en) | A kind of processing method of intermetallic composite coating waste water | |
| JP6899104B2 (en) | Wastewater treatment method and wastewater treatment equipment | |
| JP3479566B2 (en) | Phosphorus recovery device using seawater | |
| CN215365310U (en) | Color coating wastewater treatment system | |
| JP3229806B2 (en) | Human wastewater treatment equipment | |
| JP3270155B2 (en) | Sewage treatment method and treatment device | |
| JP2006167604A (en) | Water treatment apparatus and water treatment method | |
| JPH0487699A (en) | Method for purifying polluted water region |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20070516 |