CN1789169A - Organic sulfur compound containing water discharge apparatus - Google Patents
Organic sulfur compound containing water discharge apparatus Download PDFInfo
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- CN1789169A CN1789169A CNA2005101149921A CN200510114992A CN1789169A CN 1789169 A CN1789169 A CN 1789169A CN A2005101149921 A CNA2005101149921 A CN A2005101149921A CN 200510114992 A CN200510114992 A CN 200510114992A CN 1789169 A CN1789169 A CN 1789169A
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- Prior art keywords
- draining
- sulfur compound
- organic sulfur
- tank
- dmso
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- 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
- C02F3/1205—Particular type of activated sludge processes
- C02F3/121—Multistep treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
To obtain water to be treated having an excellent water quality by reducing a generated order and also carrying out stable treatment by simple equipment when organic sulfur compound-containing drainage is treated by an apparatus placing two aerobic bio-reactors or more in series. Two or more aerobic bio-reactors 1 to 4 are connected in series and the organic sulfur compound-containing drainage is distributed into two or more aeration tanks 1 to 4. Since BOD loads per reactor to be distributed are reduced by distributing the organic sulfur compound-containing drainage, an oxygen demand per reactor is reduced and a state of oxygen deficiency can easily be prevented even if a special aerator is not used. Accordingly, the odor caused by generating DMS and MM is reduced by providing a reducing atmosphere due to an oxygen shortage.
Description
Technical field
The present invention relates to device that the draining of the organic sulfur compound that comprises DMSO (methyl-sulphoxide), sulfonic acid class etc. is carried out a biological disposal upon, in particular, the present invention relates to reduce the foul smell that produces when organic sulfur compound carried out a biological disposal upon, and stably obtain the treatment unit of the draining that comprises organic sulfur compound of the treating water of good water quality.
Background technology
In recent years, in semi-conductor manufacturing process, liquid crystal board manufacturing process, adopt DMSO in large quantities.Such as, make the field at liquid crystal board, adopt diethylene glycol monobutyl ether, 2-monoethanolamine, 2, interpolation DMSO in the 2-aminoethyl monoethanolamine (aminoethyl aminoethanol) etc.s and the clean-out system that forms.Thus, these treatment processs that comprise the draining of DMSO become important.
Because DMSO is biodegradable, so carry out a biological disposal upon is economic processing, but, if the draining that comprises DMSO is carried out a biological disposal upon, then have from the problem of aerator tank and treating water generation foul smell, this problem is because in the biolytic process of DMSO in the metabolite that produces, and residual have DMS (methyl-sulfide), a MM (thiomethyl alcohol).
So, as the less residue of DMS and MM, the abundant activated-sludge processing apparatus of realizing the draining that comprises DMSO of their malodorous measure of reply, people propose that following aerobic treatment unit (JP speciallys permit document No. 3331623) is arranged, and this aerobic treatment unit comprises placed in-line 3 or above a plurality of aerator tanks; The oxygen containing gas of bag is dispersed into the mechanism that flows in the 1st aerator tank that processed draining is arranged; The downstream side is connected the mechanism in the aerator tank that diffusion exhaust that each aerator tank of the upstream side of aerator tank discharges is diffused into downstream side more; The effluent liquid of above-mentioned the 1st aerator tank is carried out the mechanism of solid-liquid separation; To turn back to mechanism in the 1st aerator tank by this isolating mud of solid-liquid separation mechanism.
As activity sludge treatmenting equipment, if decompose whole organism, then have poor because of organic decomposability, decomposition rate by single aerator tank, a part is being decomposed the effusive danger of inadequate state.Particularly, in the occasion that DMSO decomposes, estimate to compare with the decomposition rate from DMSO to DMS, the decomposition rate from DMS to MM is low, can cause the still insufficient just outflow of processing of DMS.
Relative this situation, specially permit in the aerobic treatment unit of No. 3331623 document at JP, by handling according to the multistage aeration that carries out, even variation because of lifting capacity or concentration, handle inadequate DMS at the aerator tank of prime, also can in the aerator tank of back level, handle effectively, reduce residual DMS, the stench that MM causes.
In addition, in the biolytic occasion of DMSO, owing to not only necessarily require carbon and hydroxide, but also necessarily require the sulphur oxidation, so necessary oxygen amount is very many.In addition,, form reducing atmosphere,, produce DMS, MM as odor pollutant then as following reaction formula if because of the hypoxgia in the biological reaction tank.
So people also propose with the dissolved oxygen in the higher degree maintenance biological reaction tank, and make treating water round-robin method (JP speciallys permit document No. 2769973) etc.In addition, people also propose a large amount of oxygen to be fed to the aerating apparatus (JP speciallys permit document No. 3555557) in the groove.
Patent documentation 1:JP speciallys permit document No. 3331623
Patent documentation 2:JP speciallys permit document No. 2769973
Patent documentation 3:JP speciallys permit document No. 3555557
Summary of the invention
Be not limited to comprise the biological treatment of the draining of DMSO,, biological reaction tank must be divided into a plurality of grooves so have, so that guarantee the situation of the intensity of reactive tank because the biological treatment reactive tank generally necessarily requires to adopt bigger capacity.In addition, because can be by the influence that a plurality of reactive tanks reduce the short stream (short pass) of untreated water in series is set, old friends wish also in order to obtain good water quality treatment a plurality of reactive tanks to be set in series.
But,,, have following such problem to the occasion that the draining that comprises DMSO is handled with a plurality of reactive tank series connection.
Promptly, because the 1st grade of placed in-line a plurality of reactive tanks flows directly into untreated water, so necessarily require to adopt a large amount of oxygen, form reductive atmosphere especially easily, consequently, be easy to generate the problem of the foul smell that causes of DMS, MM, and be not easy enough oxygen supplies are necessarily required to adopt in the 1st grade the reactive tank of a large amount of oxygen like this.Can specially permit the described aerating apparatus of document No. 3555557 by JP, improve the meltage of oxygen, still, people wish to adopt so special device to deal with.
In addition, if adopt JP to specially permit the device of No. 3331623 document, then carry out aeration by the aerator tank of the exhaust of the aerator tank of prime being given the back level, can solve malodorous problem, but,, attract the diffusing gas equipment of deflated of the aerator tank of prime to corrode easily in the occasion of this device, in addition, because oxygen consumed in the aerator tank of prime, oxygen concn reduces, so the diffusing gas efficient of back level is low, thus, the necessary power of diffusing gas increases.In addition, also has because of top seal the rough sledding that equipment cost is higher with aerator tank.
In addition, such problem is not limited to DMSO, for the processing of the draining of the organic sulfur compound that comprises sulfonic acid class etc., same existing problems.
So, the object of the present invention is to provide a kind of treatment unit that comprises the draining of organic sulfur compound, it is by in series being provided with the device of the aerobic biological reaction tank more than 2, when the draining that comprises organic sulfur compound is handled, reduce the foul smell that is produced by simple equipment, and carry out stable treated, obtain the treating water of good water quality.
The draining that the treatment unit of the present invention 1 the draining that comprises organic sulfur compound will comprise organic sulfur compound imports in the aerobic biological reaction tank it is handled, it is characterized in that according to the mode of the effluent liquid of the reactive tank of prime being supplied with the reactive tank of subordinate 2 grooves or above aerobic biological reaction tank being set in series, the draining that will comprise organic sulfur compound is injected into respectively in a plurality of these reactive tanks.
Invention 2 relates to the invention 1 described treatment unit that comprises the draining of organic sulfur compound, it is characterized in that aerobic biological reaction tank be provided with 3 or more than, in the reactive tank of final stage, inject the draining comprise organic sulfur compound at least.
Invention 3 relates to the invention 1 or 2 described treatment unit that comprise the draining of organic sulfur compound, it is characterized in that aerobic biological reaction tank be provided with 3 or more than, at least injecting the draining that comprises organic sulfur compound in any one this reactive tank, the draining organic draining that comprises in addition that will comprise organic sulfur compound supplies to this reactive tank that does not inject the draining that comprises organic sulfur compound.
Invention 4 relates to the invention 3 described treatment unit that comprise the draining of organic sulfur compound, and the aerobic biological reaction tank that it is characterized in that not injecting the draining that comprises organic sulfur compound is this reactive tank of prime.
Invention 5 relates to any one the described treatment unit that comprises the draining of organic sulfur compound in the invention 1～4, it is characterized in that aerobic biological reaction tank is the aerator tank that has added bio-carrier.
Invention 6 relates to any one the described treatment unit that comprises the draining of organic sulfur compound in the invention 1～5, it is characterized in that at the reactive tank that injects the draining that comprises organic sulfur compound respectively pH value adjustment mechanism being set.
According to the treatment unit that comprises the draining of organic sulfur compound of the present invention, be injected into respectively by the draining that will comprise organic sulfur compound in a plurality of aerobic biological reaction tank of series connection setting, can reduce foul smell by following actuation gear.
Promptly, because by injecting the draining that comprises organic sulfur compound respectively, the BOD loading amount of the reactive tank that each injects reduces, so the oxygen required amount of each reactive tank reduces, even do not adopt special aerating apparatus, still can prevent from easily to be in the situation of anoxybiotic state.Such as, in the device that 4 reactive tanks in series are set, if in the 1st grade reactive tank, inject all drainings that comprises organic sulfur compound of amount, then the necessary oxygen amount of each reactive tank is according to the 1st grade: the 2nd grade: 3rd level: the 4th grade=4: 2: 1: 1 mode is on the high side in prime, is easy to generate hypoxgia in prime.Relative this situation, according to the present invention, if will comprise the draining of organic sulfur compound is injected into respectively in the 1st grade, the 2nd grade, the reactive tank of 3rd level, then Zheng Ti oxygen necessary amount does not change, according to the 1st grade: the 2nd grade: 3rd level: the 4th grade=2: 2: 2: 2 mode, necessary oxygen amount is average in each groove, is difficult to produce the extremely insufficient situation of oxygen.Thus, reduce because of hypoxgia the caused foul smell of generation of the odorous substance of the DMS that reducing atmosphere causes, MM etc.
The treatment unit that comprises the draining of organic sulfur compound of the present invention can be in the reactive tank according to multistage setting, the difference injection tube of the draining that comprises organic sulfur compound only is set, also needn't require to be provided with special aerating apparatus and exhaust and attract mechanism etc., can realize low-cost by simple equipment.
According to the invention 2 described treatment unit that comprise the draining of organic sulfur compound, 3 or above aerobic biological reaction tank are set, in the reactive tank of final stage, do not inject the draining that comprises organic sulfur compound, thus, prevent the short stream of organic sulfur compound, decompose fully and eliminate organic sulfur compound, and the reactive tank of final stage is not applied the load of organic sulfur compound, thus, can in this reactive tank, decompose residual TOC effectively, reduce the TOC of the treating water that is obtained fully.
According to the invention 3 described treatment unit that comprise the draining of organic sulfur compound, 3 or above aerobic biological reaction tank are set, the draining organic draining that comprises other in addition that will comprise organic sulfur compound supplies to the reactive tank that does not inject the draining that comprises organic sulfur compound respectively, thus, also can handle the organic draining that comprises other simultaneously.In this occasion, the organic draining that will comprise other supplies to the reactive tank that does not inject the draining that comprises organic sulfur compound respectively, the organic draining that will not comprise other supplies to the reactive tank that injects the draining that comprises organic sulfur compound respectively, thus, at the reactive tank that injects the draining that comprises organic sulfur compound respectively, organic sulfur compound assimilation bacterium is dominant, can improve the decomposition efficiency of organic sulfur compound, and the organic loading that suppresses other, prevent hypoxgia, promote the decomposition of organic sulfur compound, can reduce the TOC of final treating water fully.
According to the invention 4 described treatment unit that comprise the draining of organic sulfur compound, by adopting in the aerator tank that adds bio-carrier, organic sulfur compound is assimilated bacterium be attached on the carrier, remain in the groove to high density, thus, can improve the decomposition efficiency of organic sulfur compound.
According to the invention 5 described treatment unit that comprise the draining of organic sulfur compound, by carrying out the adjustment of pH value at each reactive tank that injects the draining that comprises organic sulfur compound respectively, thus, prevent the reduction of the pH that the decomposition of organic sulfur compound causes and the reducing of the reactive behavior that causes.
Description of drawings
Fig. 1 is the system diagram of the form of implementation of the treatment unit of the expression draining that comprises organic sulfur compound of the present invention;
Fig. 2 is the system diagram of the form of implementation of another treatment unit of the expression draining that comprises organic sulfur compound of the present invention;
Fig. 3 comprises the also system diagram of the form of implementation of a treatment unit of the draining of organic sulfur compound for expression is of the present invention.
Embodiment
Form of implementation to the treatment unit of the draining that comprises organic sulfur compound of the present invention specifically describes below.
In addition, in the following description, as the draining that comprises organic sulfur compound, with the occasion that the draining that comprises DMSO is handled is that present invention is described for example, but, the invention is not restricted to DMSO, the present invention can similarly be used to the draining that comprises the sulfonic acid class, comprise other organic sulfur compound.
(comprising the draining of DMSO)
In the present invention, as the draining that comprises DMSO of process object is the draining that comprises the DMSO that discharges from semiconductor factory, liquid crystal factory, other field, both can be the draining that only comprises DMSO, also can be also comprise simultaneously TMAH (Tetramethylammonium hydroxide), 2-monoethanolamine, the draining of Virahol etc., in addition, the draining that also can serve as reasons and comprise the draining of DMSO and comprise other organic draining mixing formation.In addition, the draining that comprises DMSO has the draining of the DMSO that comprises high density, after diluting as in concentration, lower concentration draining and the situation of discharging, they all constitute process object of the present invention.
(aerobic biological reaction tank)
In the present invention, a plurality of aerobic biological reaction tank as being adopted has no particular limits, and can adopt normally used biological reaction tank arbitrarily.
Have such as, the aerator tank of the oxygen supply mechanism of air-diffuser, mechanical aeration machine etc. can adopt the carrier addition manner that keeps the mode of swimming, the microorganism of mud (microorganism) to keep carrier existing with floating state with mud scum mud, the microbe carrier of filling gac etc. is with the groove of the variety of way of the sludge blanket mode of the biofiltration mode that forms fixed bed, the come-up packing layer mode that makes float carrier in packing layer mobile fluidised bed mode, employings, formation microorganism sludge blanket etc.
In the occasion that adopts bio-carrier, carrier can adopt the carrier arbitrarily of sponge small pieces, gac etc.Because the surface-area of sponge is bigger, and is also good until the water flowing of inside, proportion is near water, so be fit to keep DMSO assimilation bacterium.Best, according to the apparent volume meter, the addition of bio-carrier compares in 20～50% scope with the volumetrical of reactive tank.
At reactive tank that must adopt the mode of swimming etc., with treating water and the isolating occasion of mud, such as, the solid-liquid separation mechanism of settling bath, film filter etc. is set.The part of isolating mud is as returning mud, turns back in the aerobic biological reaction tank of prime.In the occasion of bio-carrier being put in the aerobic biological reaction tank, also can need not the solid-liquid separation mechanism of the settling bath etc. of back level.
In addition, a plurality of aerobic biological reaction tank that is adopted needn't all be the reactive tank of same type, also dissimilar reactive tank combinations can be used.
(nutrition source)
For microorganism keeps active, realizes breeding, necessarily require to adopt carbon source, nitrogenous source, phosphorus source, in addition, various trace metals can not lack.Needn't add in the occasion that these nutrition sources are present in the processed draining, still,, must add nitrogen, phosphorus usually in the occasion of the draining that comprises DMSO.
Nitrogenous source can adopt organic compound that comprises ammoniate, urea, nitrogen etc., and phosphoric acid salt etc. can be adopted in the phosphorus source.In addition, both the Kai Daer that comprises the organic compound etc. of ammonia or nitrogen can be measured the draining that nitrogen (kjeldahl) mode obtains nitrogen component, such as will above-mentioned TMAH draining as nitrogenous source, the draining that also can comprise phosphoric acid is used as the phosphorus source.
Usually,, preferably as required, in the draining that comprises DMSO, add nitrogenous source, phosphorus source, it is imported in the aerobic biological reaction tank according to the mode of the BOD of processed draining: N: P in the scope of 100: 2.5: 0.5～100: 5: 1 (weight ratio).
(aerobic treatment condition)
Treatment condition as aerator tank are adjusted usually in the following manner, that is, the load of aerobic biological reaction tank is at 0.5kg-BOD/m
3In the scope below the/sky, such as, according to 0.3～0.4kg-BOD/m
3/ day scope in, MLSS in the scope of 3000～5000mg/L, such as, be 4000mg/L, the reaction times 1 hour or more than, such as, in 2～8 hours scope, pH value is in 6.5～8.5 scope, and is particularly better in 7.0～8.0 scope.
In the processing of the draining that comprises DMSO, because because of the decomposition pH value of DMSO reduces, so preferably alkali by interpolation sodium hydroxide etc. or alkaline draining etc. carried out the adjustment of above-mentioned pH value, so that the decomposition efficiency of maintenance DMSO.Best, this pH value is adjusted at the whole grooves that inject the draining that comprises DMSO respectively carries out, and preferably according to circumstances, also the reactive tank that does not inject the draining that comprises DMSO at the next stage that injects the draining reactive tank that comprises DMSO respectively carries out the adjustment of pH value.
In addition, according to dissolved oxygen (DO) concentration of the reactive tank that injects the draining comprise DMSO at least respectively 0.5mg/L or more than, particularly be preferably in 1.5mg/L or more than, such as, mode is carried out aeration and is handled in the scope of 1.5～2.0mg/L.
(comprising the injection respectively of the draining of DMSO)
In the treatment unit of the draining that comprises DMSO of the present invention, must 2 or above aerobic biological reaction tank in series be set according to the mode that the effluent liquid of the reactive tank of prime is supplied with the reactive tank of subordinate, the draining that will comprise DMSO is injected into respectively in 2 or the above reactive tank.
In this occasion, have at the reactive tank that injects the draining that comprises DMSO respectively, produce the short stream of the untreated water of part, a untreated part that comprises the draining of DMSO flows out the danger of water quality treatment variation.Thus, for the deteriorating water quality that prevents that so short stream from causing, preferably in the reactive tank of final stage, do not inject the draining that comprises DMSO.In addition, as hereinafter described, be used as the occasion of pure water manufacturing,, the reactive tank that does not inject the draining that comprises DMSO respectively more than 2 grades be set preferably in the occasion of the treating water that particularly necessarily requires high water quality with former water as treating water with device of the present invention; Particularly not in the reactive tank of the reactive tank of final stage and previous stage, inject the draining that comprises DMSO.Like this, by more not injecting the draining that comprises DMSO respectively in the reactive tank of previous stage at the reactive tank of final stage or its, prevent that not only the lacking of draining that comprises DMSO from flowing, and the load of DMSO does not act on the reactive tank that does not inject the draining that comprises DMSO respectively, thus, the decomposition efficiency of residual TOC can be improved,, the TOC for the treatment of water can be reduced equally by this mode.
In the present invention, the quantity of a plurality of placed in-line reactive tanks has no particular limits, and considers that the water quality or the necessary foul smell of the draining of the handled DMSO of comprising reduces effect, device is provided with space and cost etc. and suitably determines.In common occasion, best, 2～6 reactive tanks are set, particularly best 4～5 reactive tanks.
Can be according to improving the degree that the reactive tank capacity that injects the draining that comprises DMSO respectively installs the ratio of whole reactive tank capacity relatively, improve foul smell and reduce effect, but,, then be easy to generate the problem of the reduction of the treating water that the short stream of untreated water causes if this ratio is too high.So the ratio that the reactive tank capacity that injects the draining comprise DMSO respectively installs whole reactive tank relatively is preferably in 30～90%, particularly in 50～80% the scope.In addition, the capacity of each reactive tank needn't be necessarily identical, also can be different.
Best, according to the identical mode of BOD groove load of each reactive tank that injects the draining that comprises DMSO respectively, the adjustment of the amount of the draining that comprises DMSO of injecting respectively.Therefore, preferably the untreated water injecting mechanism of each reactive tank can be regulated the untreated water flow respectively, in addition, also can TOC instrument or conductivity meter be set in order to detect the variation that flows into water quality, in addition, and according to the influx of these value controls to each reactive tank.Also have, also can the DO instrument is set, control injection rate respectively at the reactive tank that injects the draining that comprises DMSO respectively according to the average mode of the DO value of each reactive tank.As hereinafter described, in the occasion that the draining that comprises DMSO and the organic draining that comprises other are handled, can preferably according to these measured values, control injection rate according to TOC, when electric conductivity is inferred BOD according to the mode that the BOD loading of each reactive tank is identical.
Therefore, device of the present invention designs in the following manner, this mode is: according to plural serial stage reactive tank is set, the difference injection tube of untreated water is set, but, the occasion that the also quantity of the reactive tank that can inject respectively according to the change of water quality adjustment of the draining that comprises DMSO, or the DMSO concentration in the draining that particularly comprises DMSO temporarily reduces, the draining that will comprise DMSO only is injected in 1 reactive tank.In addition, also can change the reactive tank that injects respectively, also can automatically carry out these controls corresponding to the having or not of the importing of the organic draining that comprises other.
(comprising other organic draining)
In device of the present invention, can with as the draining that comprises TMAH, comprise MEA (Monoethanolamine MEA BASF) draining, comprise acetic acid draining etc. from the draining of other operation of semi-conductor manufacturing process and liquid crystal board manufacturing process, the organic draining that comprises other is sent into the draining that comprises DMSO, simultaneously they are handled, this other organism also decomposes with DMSO.
In this occasion, the reactive tank that does not inject the draining that comprises DMSO is respectively sent in the organic draining that preferably will comprise other.Particularly the reactive tank that preferably comprises other organic draining as importing is the reactive tank of prime, is more preferably the reactive tank of the organic draining that comprises other being sent into prime, and the draining that will comprise DMSO is injected into the 2nd grade of later reactive tank respectively.The purpose of doing like this is to wish in advance in the reactive tank that the draining that comprises DMSO is handled, reduction comprises other organic combined amount, so that DMSO assimilation bacterium is dominant, in addition, by prior inhibition organic loading, prevent the decomposition of hypoxgia, promotion DMSO.
That is, such as, as the draining that comprises TMAH etc., the draining that comprises the draining composition with TMAH constitutes nitrogenous source, and is on the other hand, more by the consumption of the biological treatment oxygen that oxidation is used in nitrate nitrogen.Therefore, preferably so organic draining that comprises other is sent in the reactive tank of prime, do not formed the oxygen consumption source of injecting the reactive tank of the draining that comprises DMSO respectively.Even preferably under the situation about like this at the same time the organic draining that comprises other being handled, comprise sending into reactive tank and comprising the reactive tank of injection respectively of the draining of DMSO of organic draining by differentiation, can reduce the TOC of final treating water.In addition, injection comprises other organic draining, and the reactive tank that does not inject the draining comprise DMSO respectively needn't remain on higher degree with DO concentration according to the degree of injecting the reactive tank of the draining that comprises DMSO respectively, can reduce the DO concentration of this reactive tank slightly, reduce the aerator tank cost.
(recovery for the treatment of water)
Also can still also it can be used for purposes arbitrarily once more with the treating water discharging after the draining that comprises DMSO is handled.Such as, in the occasion that treating water is used as the former water of pure water manufacturing, can be behind device of the present invention, obtain pure water by the pure water producing apparatus, and the various devices of the adsorption unit of the oxidation unit of the membrane separation unit of this pure water producing apparatus by will contrary soaking into membrane separation unit etc., the ion exchange unit that mixes a type pure water device, 23 tower pure water devices, the electronic desalting plant of continous way etc., ultraviolet oxidation unit etc., gac tower etc., air-diffuser etc. make up at random and form.
In this occasion, be preferably in the TOC that reduces treating water in the device of the present invention as much as possible in advance, reduce the load of pure water producing apparatus, therefore, in order further to reduce the TOC for the treatment of water, preferably carry out following adjustment, promptly, as previously described, in the reactive tank of final stage, do not inject the draining that comprises DMSO; In addition, the reactive tank that does not inject the draining comprise DMSO respectively more than 2 grades is set; In the occasion that the organic draining that comprises other is handled, the organic draining that will comprise other is injected in the reactive tank of prime, and the draining that will comprise DMSO is injected into respectively in the 2nd grade of later reactive tank.
(concrete apparatus structure)
Fig. 1～Fig. 3 is for the treatment unit of the expression draining that comprises DMSO of the present invention
The system diagram of form of implementation.
In the device of Fig. 1～Fig. 3,4 aerobic biological reaction tanks (aerator tank) 1～4 all in series are set, by pipe arrangement 21 effluent liquid of the 1st aerator tank 1 is imported the 2nd aerator tank 2, by pipe arrangement 22 effluent liquid of the 2nd aerator tank 2 is imported the 3rd aerator tank 3, by pipe arrangement 23 effluent liquid of the 3rd aerator tank 3 is imported the 4th aerator tank 4, by the effluent liquid importing settling bath 5 of pipe arrangement 24 with the 4th aerator tank 4, be discharged to outside the system as treating water by the last clarification of water of pipe arrangement 25 settling bath 5, by pipe arrangement 26, the part of the separated sludge of settling bath 5 is discharged to outside the system as excess sludge, remainder is turned back to the 1st aerator tank 1 as returning mud by pipe arrangement 20.In addition, in the device of Fig. 3, bio-carrier 6 is put in each aerator tank 1～4.
In the device of Fig. 1, the draining that comprises DMSO that imports by pipe arrangement 10 is injected into respectively in each aerator tank 1～4 by pipe arrangement 11,12,13.In this device, the draining that comprises DMSO is injected into respectively in 4 aerator tanks, thus, seeks the minimizing of foul smell.
In the device of Fig. 2, the draining that comprises DMSO that imports by pipe arrangement 10 is injected into respectively in the 4th aerator tank 4 aerator tank 1～3 in addition of final stage by pipe arrangement 11,12,13.In the device of Fig. 2, the draining that comprises DMSO is injected into respectively in 3 aerator tanks beyond the final stage, thus, and the raising of water quality treatment when seeking the minimizing of foul smell.
In the device of Fig. 3, the draining that comprises TMAH that imports by pipe arrangement 30 is injected in the 1st aerator tank, and the draining that comprises DMSO that imports by pipe arrangement 10 imports in the 1st aerator tank 1 and the 4th aerator tank 4 the 2nd, the 3rd aerator tank 2,3 in addition by pipe arrangement 12,13.In the device of Fig. 3, the draining that comprises TMAH can be handled with the draining that comprises DMSO, in this occasion, can will comprise the draining of TMAH effectively as nitrogenous source.In addition, the draining that will comprise TMAH is injected into the aerator tank of the front that is different from the aerator tank that injects the draining that comprises DMSO respectively, the draining that will comprise DMSO is injected into respectively beyond the aerator tank of the aerator tank that is injected with the draining that comprises TMAH and final stage, and employing bio-carrier, thus, can seek minimizing, the raising of water quality treatment, the realization stabilizing treatment of foul smell.
Embodiment
Enumerate embodiment and comparative example below, the present invention is described more specifically.
In addition, for following the 1st～the 4th aerator tank 1～4 that embodiment and comparative example adopted, all according to capacity: 100L, MLSS:4000mg/L, DO:0.1～2.5mg/L, the mode of pH value in 7.0～8.0 scope adjusted.The separating area of settling bath 5: 0.5m
2, be 1440L/ day from the sludge quantity that returns of settling bath 5 to the 1st aerator tanks.
In addition, as described below as the water quality of the draining that comprises DMSO of untreated water, the treatment capacity of untreated water is 1440L/ day.
(comprising the draining of DMSO)
Solvability TOC:45.2mg/L
DMSO：62.3mg/L
The nitrogen that obtains by the Kai Daer assay method: 0.5mg/L
Embodiment 1
In device shown in Figure 1, the flow velocity according to 15L/h is injected into untreated water respectively in each aerator tank of the 1st～the 4th aerator tank 1～4 at every turn, and it is handled.In addition, according to 3 times of TOC are assumed to BOD, BOD: N: P=100: the mode of 5: 1 (weight ratio), in untreated water, add nitrogen, phosphorus, carry out water flowing.
Investigate the water quality of acquired treating water and the DMS concentration in each aerator tank exhaust, the results are shown in Table 1 for it.
Embodiment 2
Adopt device shown in Figure 2, flow velocity according to 20L/h is injected into untreated water respectively in the 1st～the 3rd aerator tank 1～3 at every turn, in addition, according to the mode identical with embodiment 1 it is handled, the DMS concentration in the water quality of acquired treating water and each aerator tank exhaust is listed in table 1.
Embodiment 3
Shown in the image pattern 3 like that, employing in each aerator tank 1～4 in apparent capacity, adding the length of side according to 30% of tankage is the device of the foursquare sponge of 3mm, flow velocity according to 30L/h is injected into the 2nd～the 3rd aerator tank 2 respectively with untreated water at every turn, in 3, the draining that comprises TMAH of following water quality is supplied in the 1st aerator tank, in untreated water, 3 times with TOC are assumed to BOD, with BOD: P=100: the ratio of 1 (weight ratio) is added phosphorus, in addition according to the mode identical with embodiment 1, it is handled, and the DMS concentration in the water quality of acquired treating water and each aerator tank exhaust is listed in table 1.
(comprising the draining of TMAH)
Solvability TOC:32.8mg/L
TMAH：53.8mg/L
The nitrogen that obtains by the Kai Daer assay method: 12.3mg/L
Comparative example 1
Except untreated water all being injected in the 1st aerator tank 1, to handle according to the mode identical with embodiment 1, the DMS concentration in the water quality of acquired treating water and each aerator tank exhaust is listed in table 1.
Comparative example 2
Except untreated water all being injected in the 1st aerator tank 1, to handle according to the mode identical with embodiment 3, the DMS concentration in the water quality of acquired treating water and each aerator tank exhaust is listed in table 1.
Table 1
| Embodiment | Comparative example | |||||
| 1 | 2 | 3 | 1 | 2 | ||
| Injection rate (L/h) * | The 1st aerator tank | D×15 | D×20 | T×60 | D×60 | D×60 T×60 |
| The 2nd aerator tank | D×15 | D×20 | D×30 | - | - | |
| The 3rd aerator tank | D×15 | D×20 | D×30 | - | - | |
| The 4th aerator tank | D×15 | - | - | - | - | |
| Treating water water quality (mg/L) | Solvability TOC | 7.2 | 4.3 | 5.6 | 3.8 | 5.8 |
| Solvability BOD | 6.9 | ＜5 | ＜5 | ＜5 | ＜5 | |
| DMS concentration (ppm) | The 1st aerator tank | 0.02 | 0.03 | ＜0.01 | 1.85 | 1.48 |
| The 2nd aerator tank | 0.03 | 0.02 | 0.08 | 0.23 | 0.21 | |
| The 3rd aerator tank | 0.02 | 0.03 | 0.06 | ＜0.01 | ＜0.01 | |
| The 4th aerator tank | 0.01 | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 | |
*D: comprise the draining of DMSO
T: comprise the draining of TMAH
According to table 1, just clear following effect.
Compare with comparative example 1, for embodiment 1,2, foul smell all reduces significantly, particularly in the occasion of embodiment 2, obtains the good water quality treatment identical with comparative example 1.
In addition, compare with comparative example 2, in the occasion of embodiment 3, foul smell all reduces significantly, obtains identical good water quality treatment.
Know according to these results,,, can suppress malodorous generation, obtain stable treated water by simple treatment facility according to the present invention.
Claims (6)
1. treatment unit that comprises the draining of organic sulfur compound, in this device, the draining that will comprise organic sulfur compound imports in the aerobic biological reaction tank, it is handled, it is characterized in that according to the mode of the effluent liquid of this reactive tank of prime being supplied with this reactive tank of subordinate 2 grooves or above aerobic biological reaction tank being set in series, the draining that will comprise organic sulfur compound is injected into respectively in a plurality of these reactive tanks.
2. the treatment unit that comprises the draining of organic sulfur compound according to claim 1, it is characterized in that aerobic biological reaction tank be provided with 3 or more than, in this reactive tank of final stage, inject the draining comprise organic sulfur compound at least.
3. the treatment unit that comprises the draining of organic sulfur compound according to claim 1 and 2, it is characterized in that aerobic biological reaction tank be provided with 3 or more than, at least injecting the draining that comprises organic sulfur compound in any one this reactive tank, the draining organic draining that comprises in addition that will comprise organic sulfur compound supplies to this reactive tank that does not inject the draining that comprises organic sulfur compound.
4. the treatment unit that comprises the draining of organic sulfur compound according to claim 3, the aerobic biological reaction tank that it is characterized in that not injecting respectively the draining that comprises organic sulfur compound is the reactive tank of prime.
5. the treatment unit that comprises the draining of organic sulfur compound according to claim 1 is characterized in that aerobic biological reaction tank is the aerator tank that has added bio-carrier.
6. the treatment unit that comprises the draining of organic sulfur compound according to claim 1 is characterized in that at this reactive tank that injects the draining that comprises organic sulfur compound respectively pH value adjustment mechanism being set.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004334793A JP4670322B2 (en) | 2004-11-18 | 2004-11-18 | Wastewater treatment equipment containing organic sulfur compounds |
| JP2004334793 | 2004-11-18 |
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| CN1789169A true CN1789169A (en) | 2006-06-21 |
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| CN200510114992A Expired - Fee Related CN100595165C (en) | 2004-11-18 | 2005-11-16 | Organic sulfur compound containing water discharge apparatus |
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| JP (1) | JP4670322B2 (en) |
| KR (1) | KR101294489B1 (en) |
| CN (1) | CN100595165C (en) |
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| CN115611415A (en) * | 2021-07-16 | 2023-01-17 | 奥加诺株式会社 | Method and apparatus for treating organic wastewater |
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| KR100722929B1 (en) | 2006-07-28 | 2007-05-30 | 이인형 | Advanced treatment method of ethanolamine-wastewater based on coupled process with physicochemical and biological unit operations |
| 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 |
| JP5267190B2 (en) * | 2008-03-26 | 2013-08-21 | Ｊｆｅスチール株式会社 | Method for treating wastewater containing sulfur-based COD components |
| JP5468251B2 (en) * | 2008-12-26 | 2014-04-09 | 株式会社西原環境 | Supporting bioreactor |
| ES2812500T3 (en) | 2009-04-23 | 2021-03-17 | Fresenius Medical Care Deutschland Gmbh | Device as well as external functional device and treatment device for treating medical fluids |
| JP5782229B2 (en) * | 2010-03-31 | 2015-09-24 | 株式会社神鋼環境ソリューション | Wastewater treatment method |
| JP5488166B2 (en) * | 2010-04-26 | 2014-05-14 | Ｊｆｅスチール株式会社 | Biological treatment method and apparatus for waste water containing sulfur-based COD components |
| JP5753668B2 (en) * | 2010-06-22 | 2015-07-22 | 株式会社神鋼環境ソリューション | Waste water treatment method and waste water treatment equipment |
| JP6007282B2 (en) * | 2015-04-20 | 2016-10-12 | 株式会社神鋼環境ソリューション | Waste water treatment method and waste water treatment equipment |
| JP2019048254A (en) * | 2017-09-08 | 2019-03-28 | オルガノ株式会社 | Method and device for treating organic wastewater |
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| JPS5717600B2 (en) * | 1975-01-28 | 1982-04-12 | ||
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| JPS53128155A (en) * | 1977-04-14 | 1978-11-08 | Toray Ind Inc | Method and apparatus for processing waste water |
| JPS547765A (en) * | 1977-06-21 | 1979-01-20 | Seisui Kogyo Kk | Device for treating active sludge waste water |
| JPS55134695A (en) * | 1979-04-10 | 1980-10-20 | Fuji Electric Co Ltd | Treatment in urine/feces sanitation tank sewage |
| PL169127B1 (en) * | 1990-04-12 | 1996-06-28 | Pacques Bv | Method of oxygen-free treating sewage of high sulphur compounds content |
| JPH0550094A (en) * | 1991-08-21 | 1993-03-02 | Unitika Ltd | Water treating medium and water treating device for denitrification |
| JP3331623B2 (en) * | 1992-06-08 | 2002-10-07 | 栗田工業株式会社 | Aerobic treatment equipment |
| JP2769973B2 (en) * | 1994-03-29 | 1998-06-25 | シャープ株式会社 | Method and apparatus for treating water to be treated containing organic sulfur compounds |
| JP2000210074A (en) * | 1999-01-21 | 2000-08-02 | Toray Ind Inc | Acclimation of degrading microorganism, obtaining of acclimated microorganism and degradation of organic compound |
| JP2001252677A (en) * | 2000-03-13 | 2001-09-18 | Japan Organo Co Ltd | Method for treating alkylsulfoxide-containing waste water |
| KR100420113B1 (en) * | 2000-12-05 | 2004-03-02 | 주식회사 한스환경엔지니어링 | Fixed type reactive biofilm and treatment method of wastewater by using the same |
| JP2004033808A (en) * | 2002-06-28 | 2004-02-05 | Fuji Photo Film Co Ltd | Wastewater treatment method using microorganisms |
| JP2004033807A (en) * | 2002-06-28 | 2004-02-05 | Fuji Photo Film Co Ltd | Wastewater treatment apparatus and wastewater treatment method |
| KR100639649B1 (en) * | 2002-08-22 | 2006-10-30 | 주식회사 환경시설관리공사 | Multi-Stage Step-Feed Nutrients Removal Devices Using Media and Use Thereof |
| JPWO2004096720A1 (en) * | 2003-03-31 | 2006-07-13 | 株式会社荏原製作所 | Method and apparatus for methane fermentation treatment of wastewater containing sulfur compounds |
| TWM244300U (en) * | 2003-05-12 | 2004-09-21 | Hung Shiau Ping | Multi-staged fluidized bed water treatment device |
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| CN115611415A (en) * | 2021-07-16 | 2023-01-17 | 奥加诺株式会社 | Method and apparatus for treating organic wastewater |
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| KR101294489B1 (en) | 2013-08-07 |
| CN100595165C (en) | 2010-03-24 |
| TW200624390A (en) | 2006-07-16 |
| KR20060055343A (en) | 2006-05-23 |
| JP2006142192A (en) | 2006-06-08 |
| TWI403467B (en) | 2013-08-01 |
| JP4670322B2 (en) | 2011-04-13 |
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