CN85108424A - Method and system for purifying sewage or other impure waste water - Google Patents
Method and system for purifying sewage or other impure waste water Download PDFInfo
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- CN85108424A CN85108424A CN85108424.9A CN85108424A CN85108424A CN 85108424 A CN85108424 A CN 85108424A CN 85108424 A CN85108424 A CN 85108424A CN 85108424 A CN85108424 A CN 85108424A
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- ZEMWIYASLJTEHQ-UHFFFAOYSA-J aluminum;sodium;disulfate;dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZEMWIYASLJTEHQ-UHFFFAOYSA-J 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A novel process for the purification of untreated sewage or other impure water, such as impure industrial water, which comprises adding at least small amounts of the following chemicals, alum, a cationic polyelectrolyte and an anionic surfactant, in any order, to said sewage or other impure water and turbulently mixing them with said sewage or other impure water, subsequently precipitating the particulate matter as a precipitate and withdrawing the purified water. The system can be easily maintained and operated by a single layperson and can be operated continuously, and it can be easily moved from one area to another as needed.
Description
The present invention relates to not purifying method of pure waste water of a kind of sewage or other.This method comprises, with above-mentioned sewage or other impure waste water flow through an inlet region, a mixing zone, a disengaging zone and a recirculation zone.In the mixing zone, the impure waste water of sewage or other mixes with the chemical agent of selecting; In the disengaging zone, dirt separates with water purification, extracts water purification, cleaning and discharge section dirt then out; In recirculation zone, part dirt recirculation flow is to the mixing zone.The present invention relates to one simultaneously and is used to finish system for carrying out said process.This system comprises: pump, some inlets, a separate chamber and a dirt recirculation conduit.Said pump enters this system via its inlet tube extraction sewage; The chemical agent that said inlet will have been selected is injected in the sewage, and chemical agent is mixed in mixing section with sewage; Said separate chamber is used for eliminating impurities therein, and the discharge line by a dirt extracts dirt and extracts water purification by a water purification extraction pipeline out in the separate chamber in the separate chamber in its bottom simultaneously; The dirt recirculation pipe is used to connect separate chamber and pump intake piping road.In addition, the present invention also relates to a separate chamber that is used for the above system simultaneously.
By convention, for being settled out solid particulate, at first in the mud retention basin, sewage is carried out pre-treatment.After treating above-mentioned sewage pre-treatment, it similarly is used for removing the device that belongs to solid particulate by first and second filtering basin or other filters.Subsequently, make sewage drain into rivers, brook or other similar place by discharge line.But, use the filtering sewage of this method still to contain quite a large amount of impurities.This method is lost time and the bigger floor space of the mud chamber of storing needs simultaneously.
Know from prior art, in containing the water that does not need solid particulate, add a certain amount of chemical agent as: methods such as lime and soda ash can make soluble in water do not need the solid particulate precipitation and with water shape or suspension or suspension.Also know in addition, advance a tooth in the established upward suspension and add chemical agent, will improve and accelerate the cohesion and the cleaning action of water.The solid particulate of separating out from untreated water is tending towards precipitation, thus precipitation be rely on particle accumulation in the suspension become big form will from clear and purified waste water isolating comparatively stable particle.
Below also be known technology, promptly by in water, add condensing agent as: thereby that alum, ferric sulfate or other analogue etc. remove is colored, muddy in anhydrating, organic substance and other similar impurity.The compound that adds is a tart, alkali in they and the water or basic cpd as: reactions such as lime or soda ash generate a large amount of soluble throw outs (hydrate).Throw out has very big surface-area, has adsorbed the impurity of dissolved or colloidal dispersion on these sedimentary surfaces.The impurity that the impurity skin that suspends is enclosed with gluey hydrate and suspension becomes a sedimentary part.Usually, be included in above-mentioned a kind of condensing agent in this processing method as dregs and throw out that alum, sodium aluminate or ferric sulfate etc. help branch to generate in dried up.Sterilize if desired and reduce organism, in treating processes, can use chlorine.
Civilian or sanitary sewage and trade effluent can carry out purifying treatment by using the chemical agent intermediate processing, use this method, join suitable chemical agent (for example: alum, lime, iron(ic) chloride, polyelectrolyte or their mixture) in the sewage and make effluent stream cross one or more flocculation basin (the stirring limit or the splash bar of slow rotation are housed usually).In flocculation basin, gelationus solid matter forms size and weight can sedimentary particle.Subsequently, from liquid, separate gelationus solid particulate or flocs unit.Separating the method that adopts is: these colloidal solids or flocs unit successive are precipitated in settling tank, they are separated from liquid; Post precipitation, the water that has purified is collected in being fixed in the weir arrangement of water surface; Remove the throw out of being made up of flocs unit and dirt simultaneously, the method for disgorging typically uses dirt scraper and/or pump.Some trade effluent or sewage have the inherent tendency of flocculation, therefore, just do not need to add the chemical agent that flocculates in above-described sewage, because make the flocs unit that produces precipitate by stirring this liquid, can reach purification effects fully.
Described above for relating to, the various different patents that are used for effluent purification method are listed as follows:
(1) Canadian Patent № 485843, open day of patent specification: August 19 nineteen fifty-two, applicant: U.S.'s Kona Mead (Cyanamid);
(2) Canadian Patent № 517674, open day of patent specification: October 18 nineteen fifty-five, applicant: Peterson (Petersen);
(3) Canadian Patent № 652116, open day of patent specification: on November 13rd, 1962, applicant: ion exchange resin company (The Permutit Company);
(4) Canadian Patent № 662102, open day of patent specification: on April 30th, 1963, applicant: Dow Chemical (Dow Chemical Company);
(5) Canadian Patent № 662534, open day of patent specification: on May 7th, 1963, applicant: U.S.'s Kona Mead (Cyanamid);
(6) Canadian Patent № 695871, open day of patent specification: on October 13rd, 1964, applicant: Union Carbide Corp (Union Carbide);
(7) Canadian Patent № 720878, open day of patent specification: on November 2 nineteen sixty-five, applicant: DS suddenly comes this Supreme Being, and you wait (DSBlaisdell, et al);
(8) Canadian Patent № 724705, open day of patent specification: December 28 nineteen sixty-five, applicant: integrated service company (General Services Company);
(9) Canadian Patent № 771730, open day of patent specification: on November 14th, 1967, applicant: Dow Chemical (Dow Chemical Com-pany);
(10) Canadian Patent № 773154, open day of patent specification: on December 5th, 1967, applicant: Na Pitu Mike (Neptun e Microfloc);
(11) Canadian Patent № 830531, open day of patent specification: on December 23rd, 1969, applicant: Johns-Man La Vier company (Johns-Manv-ille Corporation);
(12) Canadian Patent № 839326, open day of patent specification: on April 14th, 1970, applicant: Nuo Mo and Hai Si (Rohm and Haas);
(13) Canadian Patent № 843762, open day of patent specification: on June 9th, 1970, applicant: cross (Duff et al) such as husbands;
(14) Canadian Patent № 862172, open day of patent specification: on January 26th, 1971, applicant: German chemical company limited (Reichhold Chem-cials Inc.);
(15) Canadian Patent № 880600, open day of patent specification: on September 1st, 1971, applicant: Unichem (Allied Chemical Corporation);
(16) Canadian Patent № 959586, open day of patent specification: on December 17th, 1974, applicant: the oil of temporarily joining a theatrical troupe (Tatabanyal);
(17) Canadian Patent № 984528, open day of patent specification: on February 24th, 1976, applicant: Na Mo (Nozm AMCAg);
(18) Canadian Patent № 989079, open day of patent specification: on May 11st, 1976, applicant: Mitsubishi (Mitsubishi); With
(19) Canadian Patent № 1085979, open day of patent specification: on September 16th, 1980, applicant: Ka Weihuo (RJCarvalho);
The patent that will be referred to be used for the equipment of sewage purification and include method described above is listed as follows:
(1) Canadian Patent № 517672, open day of patent specification: October 18 nineteen fifty-five, applicant: Peterson (Petersen);
(2) Canadian Patent № 692543;
(3) Canadian Patent № 843762, open day of patent specification: on June 9th, 1970, applicant: cross (Duff et al) such as husbands;
(4) Canadian Patent № 853022, open day of patent specification: on October 6th, 1970, applicant: Miller (Miller);
(5) Canadian Patent № 951035, open day of patent specification: on July 9th, 1974, applicant: ripple nox (RPBrixt);
(6) Canadian Patent № 959584, open day of patent specification: on December 17th, 1974, the applicant: skill adds brother's bridge and (the Chicago Bridge of ferrous products company; Iron Co);
(7) Canadian Patent № 972880, open day of patent specification: on August 15th, 1975, applicant: Johnson building constructor (Johnson Construc-tion Co.);
(8) Canadian Patent № 1074928, open day of patent specification: on April 1st, 1980, applicant: environment setter company limited (Environmental Conditioners Inc.);
(9) United States Patent (USP) № 3768648; With
(10) system that is referred to as CANWEL (has (the Central Mortgage and Housing Corporation of Canadian central trust and housing corporation, Canada) trade mark), this system by an organism-absorbing oxidation reactor, dirt separation, chemical reaction cleaner, ozonization device and one arbitrarily the dirt subsider form (believing that this method will be used for the processing of dirt).
The invention provides a water purification system, this system is suitable for the water system of Podunk and health resort, perhaps is arranged in the construction site and lumbering factory of remote districts; This system can be keeped in repair alone and be operated by unskilled work personnel easily, its treatment capacity can the 900-18000 liter/hour between regulate; This system looks into continuous operation round the clock, and as required, also can be transferred to another place by a place easily.
The invention provides a kind of not improving one's methods of pure purification of waste water of sewage or other that be used for, be about to chemical agent and join method among sewage or the impure waste water.The improvement of this method is to add a spot of following chemical agent at least with any order, that is: alum, a kind of cationic polyelectrolyte and a kind of anion surfactant; Under turbulent state, the chemical agent that adds is mixed with sewage or other impure waste water; Make particulate matter as deposition of dirt and taking-up water purification.
In one embodiment, the addition sequence of three kinds of chemical agents is: alum, a kind of cationic polyelectrolyte and a kind of anion surfactant.In another embodiment, the addition sequence of three kinds of chemical agents is: alum, a kind of anion surfactant and a kind of cationic polyelectrolyte.Among the embodiment therein, the weight that alum adds approximately is 10-200ppm; The weight that cationic polyelectrolyte adds approximately is 0.1-5ppm; The weight that anion surfactant adds approximately is 0.1-5ppm.After three kinds of chemical agents add, can also add the 4th kind of chemical agent, this also is a feature of the present invention.
In specific embodiment of the present invention, provide a kind of method that is used for sewage purification.This method comprises: make effluent stream through an inlet region, a mixing zone, a disengaging zone and a recirculation zone.In the mixing zone, sewage mixes with the chemical agent of selecting; In the disengaging zone, dirt is separated with water purification, in recirculation zone, make the recirculation of part dirt in the mixing zone.Use the above method,, at first alum is joined in the sewage in the inlet region for providing through pretreated sewage; Subsequently,, cationic polyelectrolyte is joined through in the pretreated sewage, preferably add cationic polyelectrolyte continuously, so that obtain a kind of middle pretreating sewage in the first area of mixing zone in the mixing zone; Subsequently, add a kind of anion surfactant in the middle pretreated sewage of process, preferably the different zones in the mixing zone adds anion surfactant continuously, so that obtain through chemically treated sewage; Subsequently, will be divided into two strands of parallel output streams through chemically treated sewage; Make output stream flow into the disengaging zone, preferably make its annular flow in the cylinder disengaging zone downwards; And water purification is extracted in the centre at the top, disengaging zone out, and discharges dirt in isolating bottom.In another specific embodiment of the present invention, provide a kind of method of sewage purification.This method comprises, make effluent stream through an inlet region, a mixing zone, a disengaging zone and a recirculation zone.In the mixing zone, sewage mixes with the chemical agent of selecting; In the disengaging zone, dirt is separated with water purification; In recirculation zone, make the part dirt be recycled to the mixing zone.In above-mentioned method, at first in sewage, add alum through pretreated sewage in the inlet region, in the mixing zone, anion surfactant joined pass through in the pretreated sewage, preferably add anion surfactant continuously in the first area of mixing zone, so that obtain a kind of middle pretreating sewage, subsequently, with cationic polyelectrolyte join pass through in the middle of in the pretreated sewage, preferably the different zones in the mixing zone adds cationic polyelectrolyte continuously, so that obtain through chemically treated sewage; Subsequently, will be divided into two strands of parallel output streams through chemically treated sewage; Make output stream enter the disengaging zone, preferably make its annular flow into the round shape disengaging zone downwards; Extract water purification in top center position, disengaging zone out, and discharge dirt in the bottom of disengaging zone.
Include the step of a recirculation in two embodiment, the sewage that said recirculation step makes the dirt of pre-determined quantity be recycled to handle or other be not in the pure water.In addition, in any one of this two embodiment, the flow that flows through the mixing zone approximately be the 20-180 liter/minute; And/or the flow of recirculation dirt is about the 1-20% that flows through the total system flow; And/or the recirculation of pump is the about 1-20% of total system flow that flows through.Preferably each recirculation flow is about 5-7%.
The present invention also provides a kind of sewage purification system that is used to finish aforesaid method.This system comprises: pump, several inlets, a separate chamber and a recirculation conduit.By said pump intake piping sewage is pumped in the said system; In the sewage in mixing section, inject selected chemical agent by inlet; By separate chamber's eliminating impurities, extract the Guan Congqi bottom out by dirt and extract dirt out and from the separate chamber, extract water purification out by water purification extraction pipe; And separate chamber and pump intake piping road are linked up by the dirt recirculation conduit.In above-mentioned system, mixing section comprises one first " U " type mixing section and one and first second " U " type mixing section that " U " type mixing section links; First and second mixing sections are connected on the waste pipe of pump.First mixing section and second mixing section are formed by cup and chamber, back, are the cups of first mixing section from the mixing section that enters the mouth, and are the back chambers of second mixing section from mixing section to outlet; The back chamber of first mixing section and the cup of second mixing section link, at cup and back chamber interior traverse baffle is arranged all, indoor, traverse baffle only extend into the part of this chamber cross-section, and the traverse baffle in the two relative longitudinal surfaces is staggered, each traverse baffle all has identical inclination angle towards flow direction, thereby helps to form Turbulence Flow; In addition, mixing section comprises a conduit, and this conduit links up each chamber, back with the cup that is adjacent, and this conduit comprises an inlet, inlet is injected selected chemical agent the mixing section inlet by inlet near.Above-described system also comprises a diffluence room that links with the mixing chamber outlet pipeline, so that will be divided into the output stream of two bursts of split flow from the effusive sub-thread fluid of mixing section by this diffluence room.In said system, the separate chamber is linked with parallel output stream pipeline from diffluence room; And diffluence room inside has such structure, can make through chemically treated effluent stream and tangentially flow into the separate chamber with a single direction towards separate chamber's sidewall; The separate chamber also has such structure simultaneously, promptly is used for from separate chamber's eliminating impurities, is extracted out dirt from its bottom, extracted out pipeline portion central position extraction water purification from it by a water purification simultaneously by a dirt extraction pipeline.
In an embodiment of said system, for all form sinusoidal fluid on the mixing section inner periphery, traverse baffle only extend into the part of this chamber cross-section in the mixing section, and tilts towards fluidic proper flow direction with same angle.In another embodiment, a dirt collection bin is arranged, draw a dirt from collection box and go out to extract out pipeline in the bottom, separate chamber; And above-mentioned separate chamber also can comprise a dirt screeding device in its bottom; For control from the separate chamber to the recirculation volume of pump intake pipeline, a valve can be set following again on the pipeline.For making the recirculation sewage of the sewer line of self-pumping, assurance turns back to pump.Be preferably in the duct coupling that a band valve is set between the sewer line of pump intake piping and pump.
The present invention also provides a kind of separate chamber that is used for aforesaid device.This separate chamber comprises a main cylindrical chamber, advances the inlet of sewage in the separate chamber, in the dirt collection bin of its bottom, be used for removing the device of crude removal and take out the water purifying device from the separate chamber from the bottom, separate chamber.In this separate chamber, its some sewage inlets comprise near separate chamber top and be opposite to a pair of inlet of cylinder radial, this inlet comprises the bossing that connects main cylindrical chamber sidewall, bossing leads to adjacent interior guide chamber, have a downward exit in the guide chamber, exit is used in the main cylindrical chamber of guiding that the fluid annular of coming in is downward.In above-mentioned separate chamber, be used for being included in the dirt collection bin of bottom, separate chamber and entering the set cover bottom removing mechanism of collection box for making in dirt except that the device of crude removal; Also be useful in addition to discharge the device of refuse in the dirt collection bin; And the device that makes the dirt recirculation of pre-determined quantity in the collection box.In this separator, be used for discharging the water purifying device and comprise a central upper portion outlet that has valve from the separate chamber.
In an embodiment of above-mentioned separate chamber, inlet comprises the spherical side wall bulge loop, and inlet is led to by a determined guide chamber of no round-ended cylinder, this has cylindrical wall and the protruding annular lip that overhangs, and by annular lip guide chamber is fixed on the inwall of main cylindrical chamber.Guide chamber preferably provides a continuous downward exit and the guide channel that the center makes progress.
Unusual effect of the present invention has been to provide the treatment process of Sewage treatment systems, a separate chamber and an a kind of sewage that has improved.It is promptly effective simply again that they change untreated sewage into purified water, and treated sewage need not again through first and second filtering basin commonly used.And it also can make the current that come out from sewage satisfy people's the standard that expends in the short as far as possible time.
At this, according to the above, for impelling both the solid flocculations of untreated sewage and/or trade effluent, before untreated sewage and/or trade effluent enter the mixing zone (or entering simultaneously), according to three kinds of different chemical agent pre-treatment raw sewerage and/or the trade effluents that necessarily use in order, preferably select for use a plurality of nozzles to spray into chemical agent.Subsequently, the liquid of handling through chemical process (for example sewage) finally flows into the separate chamber.For reaching desirable effect, according to suitable use in order chemical agent and quantity thereof.Chemical agent that uses and quantity thereof and the order dependent that adopted are in design variable.The chemical agent acting in conjunction that adds forms flocs unit, crystal and other solid matter, and said flocs unit, crystal and solid matter are made of institute's solvent components in the handled sewage.In the separate chamber these solid matters are removed.As long as through the processing of chemical process, dirt just changes the refuse of wadding a quilt with cotton with fixed attention into.When the effluent stream of non-processor was crossed the separate chamber, the deposition of dirt of having handled also was discharged from, and isolates water purification simultaneously.
Fig. 1 is the sewage water treatment method of one embodiment of the invention and the schematic diagram of system; And
Fig. 2 is along sectional view that II among Fig. 1-the II line is cut open according to the separate chamber of another embodiment of the present invention.
Sewage treatment systems 10 comprises the input channel 11 of a untreated sewage, and this pipeline leads to the main flow pipeline 12 that links to each other with pump 13 imports.The outlet conduit 14 of pump 13 is equipped with an injection device 15, is used for first kind of chemical agent or perhaps precipitation agent are injected into outlet conduit 14, so that obtain through pretreated sewage.An inlet 16 that passes through mixing section 17 through pretreated sewage flows into mixing sections, and flows out with the outlet 18 of mixing section 17, and then the import 20 that enters diffluence room 21 by pipeline 19.
Mixing section is by two " U " type chambers that are connected, and promptly first " U " type chamber and second " U " type chamber are formed.The cup 173 of import 16 and first " U " type chamber 171 is connected, and the back chamber 176 of second " U " type chamber of outlet 18 connects.First " U " type chamber 171 is connected by pipe connecting 186 with second " U " type chamber 172.
The back chamber 174 of cup 173 and first " U " the type chamber 171 of first " U " type chamber 171 is connected by pipe connecting 177.Be equipped with on the pipe connecting 177 chemical agent is injected into injection device 178 in this pipe connecting.Similarly, the cup 175 of second " U " type chamber 172 is connected by a pipe connecting 179 with the back chamber 176 of being somebody's turn to do " U " type chamber.Be equipped with on the pipe connecting 179 chemical agent is injected into injection device 120 in this pipe connecting.The traverse baffle 181 of a lot of distributions all is equipped with in each chamber in described cup, the chamber 173,174,175,176, back.These traverse baffles 181 are tilting towards the liquid flow path direction, so that make through chemically treated sewage along a sinusoidal channel flow and mixed fully.
Diffluence room 21 is general cylindrical vessels.It comprises a rhombus spreader plate 22 of portion within it, so that be divided into two strands of turbulent flows through chemically treated effluent stream.This two bundles turbulent flow is separated by the dividing plate 23 of a vertical atresia, and enters first sewer line 25 from first outlet, 234 effusive turbulent flows, enters second sewer line 27 from second outlet, 26 effusive turbulent flows.First plumbing drain 25 will be through first import 29 of chemically treated sewage transport to cylinder separate chamber 30, simultaneously, second sewer line 27 will be through second import 28 of chemically treated sewage transport to this separate chamber, and import 28 is opposite on separate chamber's radial periphery with import 29.
Sedimentary dirt is fallen the bottom of settling region 37, and is scraped in the dirt collection bin 42 by scraper plate 39 therefrom.Said scraper plate is driven by motor 40 and makes its rotation.Dirt is pushed into from dirt collecting chamber 42 in a dirt removal pipeline 44 and the recirculation conduit 442 by spiral propeller.Said screw impeller is driven by motor 43.Pipeline 442 is controlled by valve at 441 places, and this pipeline leads to main flow pipeline 12.Main flow pipeline 12 is connected with the recirculation conduit 45 of outlet conduit 14 by pump.Recirculation conduit 45 is at 451 place's mounted valves.
When using Sewage treatment systems 10, basic schema is such:
By pump 13 the processed sewage in end is pumped in the mixing section 17 by pipeline 11 and 12.Before not processed sewage entered mixing section 17, it mixed with recirculation dirt in the pipeline 442, mixed recirculation sewage inflow pump 13, and then enter the recirculation conduit 45 of pump.The sewage recirculation flow approximately is the 1-20% by the whole flows of system, 5-7% preferably, and approximately be the 5-40 gpm by whole flows of system.
Have at least three kinds of chemical agents to be added in the untreated sewage with any order.These three kinds of chemical agents are precipitation agent (for example alum), high-valence cationic polyelectrolyte (for example based on the multipolymer of alkene acid amides) again and anion surfactant (for example polyacrylamide alkali).In a specific example, first kind of chemical agent of adding is alum.As following described, alum is the hydration sulfuric acid double salt that a kind of aluminium and monovalent metal such as potassium, sodium, ammonium etc. are formed; K for example
2SO
4Al
2(SO
4)
324H
2O; (NH
4)
2SO
4Al
2(SO
4)
324H
2O; KAl(SO
4)
212H
2O; Or (NH
4)
2SO
4Fe
2(SO
4)
324H
2O.Alum joins in the pump discharge pipeline 14, and it approximately is 10-200ppm that its add-on is calculated by weight, preferably about 20～50ppm.
Chemical agent preferably joins in the mixing section 17 continuously, so that obtain the sewage through Chemical Pretreatment.In one embodiment, the basic order that chemical agent adds is as follows, it is a kind of anion surfactant that second kind of chemical agent injects second kind of such chemical agent by nozzle 178, for example, polyacrylamide alkali, the just the sort of chemical agent that indicates trade mark DOWA23, other also spendable polyacrylamide alkali is those chemical agents that indicate trade mark DOWA23p, DOWA25 and DOA27.
The third chemical agent injects by nozzle 180 then.The third chemical agent like this is a kind of high-valence cationic polyelectrolyte, preferably a kind of alkalization acrylamide copolymer, as indicate the chemical agent of trade mark HERCULOC855, HERCULOC849 or HERULOC848.Other can obtain in various degree that the polyelectrolyte of effect is not natural high molecular weight electrolyte, and (for example protein or polysaccharide) is exactly synthetic macromolecule amount ionogen (for example alkylogen affixture of polyethylene pyridine).
Though do not have the spy to add explanation for inject the 4th kind of chemical agent at output channel 19 places here, it also within the scope of the invention.
The special construction of mixing section 17 makes untreated sewage and whole chemical agent uniform mixing.But also can use other any can assurance whole mixed uniformly like this structures of chemical agent.Deriving another kind of most important forms according to this method is that the sewage that makes to come out from pump 13 returns in the pump 13 through recirculation conduit 45 and valve 451 again.The pump recirculation flow is the 1-20% by these whole flows of system, preferably 5-7%.Mix, and shunt 25,27 to row stream chamber 21, flow to separate chamber 30 then through chemically treated sewage transport.Dirt is 30 bottom settlings and enter sewage treatment plant by pipeline 44 in the separate chamber, or enters sewage recirculation conduit 442 simultaneously with the 1-20% by the whole flows of system, and water purification is extracted out by outlet conduit 38.
Claims (14)
1, a kind ofly is used to purify waste water or other method of pure waste water not, in the method, chemical agent joined in said said sewage or other the impure waste water, it is characterized in that; With any order, in said sewage or other impure waste water, add the chemical agent of a small amount of following several types at least, i.e. alum, a kind of cationic polyelectrolyte and a kind of anion surfactant; Chemical agent that adds and said sewage or other be the pure water turbulent mixing not; Allow particulate as deposition of dirt; Extract water purification out.
2, according to the method for claim 1, it is characterized in that: according to following order, only add three kinds of chemical agents, i.e. alum, a kind of cationic polyelectrolyte and a kind of anion surfactant.
3, according to the method for claim 1, it is characterized in that, according to following order, only add three kinds of chemical agents, i.e. alum, a kind of anion surfactant and a kind of cationic polyelectrolyte.
4, according to claim 1,2 or 3 method, it is characterized in that:
(a) said alum is calculated by weight, and add-on approximately is 10～200ppm;
(b) said cationic polyelectrolyte is by weight calculating, and add-on approximately is 0.1～5ppm;
(c) said anion surfactant is by weight calculating, and adding approximately is 0.1～5ppm;
5, according to claim 1,2 or 3 method, it is characterized in that, after said three kinds of chemical agents add, add the 4th kind of chemical agent.
6,, comprise making sewage pass through an entrance region mixing zone, a disengaging zone and a recirculation zone according to the method for purifying waste water in the claim 1; In said mixing zone, sewage mixes with the chemical agent of selecting; In said disengaging zone, dirt separates from water purification; At said recirculation zone, the part dirt is recycled to said mixing zone; The method is characterized in that:
(a) at first alum is added in the sewage, to obtain through pretreated sewage at said entrance region;
(b) cationic polyelectrolyte is joined through in the pretreated sewage in said mixing zone subsequently, preferably it is joined continuously the first area of said mixing zone, so that obtain the middle pretreated sewage of a kind of process.
(c) subsequently anion surfactant is joined in the middle pretreated sewage of said process, preferably it is joined continuously the different zones of said mixing zone; To obtain through chemically treated sewage.
(d) the chemically treated sewage of said process is divided into the parallel output stream of two bundles subsequently.
(e) said output stream is entered said disengaging zone, preferably it is directed downwards and is transported to circlewise in the round shape disengaging zone;
(f) water purification is extracted out from the central position at top, said disengaging zone, and dirt is discharged from the bottom of said disengaging zone.
7,, comprise making sewage pass through an entrance region, a mixing zone disengaging zone and a recirculation zone according to the method for purifying waste water in the claim 1; In said mixing zone, said sewage mixes with the chemical agent of selecting, and in said disengaging zone, dirt separates with water purification; In said recirculation zone, the recirculation of part dirt enters the mixing zone; The method is characterized in that:
(a), at first alum is added in the sewage, to obtain through pretreated sewage at said entrance region;
(b) subsequently in said mixing zone, anion surfactant is added to through in the pretreated sewage, preferably it is joined continuously the first area of said mixing zone, to obtain through middle pretreated sewage;
(c) subsequently cationic polyelectrolyte is joined through in the middle pretreated sewage, preferably it is added in continuously the different zones of said mixing zone, to obtain through chemically treated sewage.
(d) the chemically treated sewage of said process is divided into the parallel output stream of two bundles subsequently;
(e) said output stream is transported to said disengaging zone, preferably is transported to it in round shape disengaging zone downwards circlewise; And
(f) water purification is extracted out from the central position at top, said disengaging zone, and dirt is discharged from the bottom of said disengaging zone.
8, according to the method for claim 6 or 7, it is characterized in that: comprise that the recirculation dirt with pre-determined quantity enters in the said sewage of handling or other impure water purifying step;
9, according to the method for claim 6 or 7, it is characterized in that: the flow by said mixing zone approximately be the 20-180 liter/minute; And/or said dirt recirculation flow approximately is the 1-20% that flows through the whole flows of said system; And/or the recirculation flow of said pump approximately is the 1-20% by the whole flows of system, and preferably each said recirculation flow approximately is 5-7%.
10, implement the sewage purification system of method described in the claim 1, comprise: a pump (13), inlet (15,178,180), a separate chamber (30) and a dirt recirculation conduit (442), said pump (13) is used for sewage is pumped into said system by a pump intake pipeline (11), said inlet (15,178,180) be used for selected chemical agent is injected into said sewage, so that said chemical agent and said sewage are mixed in mixing section (17), said separate chamber (30) is used for making sewage (30) separation in the separate chamber, dirty dirt the bottom of (30) is extracted out by a dirt removal pipe (44) from the separate chamber, water purification is extracted out by pure water pipe (38) from separate chamber (30), and said dirt recirculation conduit (442) is connected said separate chamber (30) with said pump intake pipeline 11; This sewage purification system is characterised in that: said mixing section (17) comprises second mixing section (172) that one first " U " mixing section (171) is connected with one and first " U " mixing section, said first and second mixing sections (171,172) be connected with sewage output channel (14) from said pump (13), said first mixing section (171) and said second mixing section (172) all have a cup (173,175) chamber (174 and after, 176), import (16) is to said mixing section (171,172) this section is the cup (173) of first said mixing section (171), from said mixing section (171,172) be the back chamber (176) of the second said mixing section (172) to exporting (18), mixing section (171,172) between the cup (175) of the back chamber (174) of said first mixing section (171) and said second mixing section (172), connect, said cup (173,175) and chamber (174, said back, 176) all there is traverse baffle (181) each chamber in, before said, back chamber (173,174,175,176) in, traverse baffle only stretches into the part of this chamber cross-section, and in the chamber in two relative vertical surfaces, traverse baffle is staggered, each traverse baffle all has identical inclination angle towards water (flow) direction, so that can produce turbulent flow, pipeline (177,179) with each chamber (174, said back, 176) and the said cup (173 that is adjacent, 175) connect, each said pipeline (178,180) include an inlet (178,180), inlet (178,180), be used for selected second kind of chemical agent and the third selected chemical agent are injected into said mixing section (171); According to sewage purification system of the present invention, it is further characterized in that, has a diffluence room (21), this diffluence room is connected with outlet (18) from mixing section (17), so that said single output stream (19) is transformed into the parallel output stream (27 of two bundles, 25), it further is characterised in that, said separate chamber (30) is by import (28,29) with said parallel output stream pipeline (27 from said diffluence room (21), 25) connect, and have and make the chemically treated effluent stream of said process with a single direction, the structure (31 that tangentially flows into along the sidewall of said separate chamber (30), 32,33,34), structure (39 in said separate chamber, 41,42) in order to eliminating impurities from separate chamber 30, and pass through a dirt removal pipe (44) from its bottom dirt is discharged, extract water purification out from top center position, separate chamber (36) by pipeline (38) simultaneously.
11, according to the system of claim 10, it is characterized in that: the traverse baffle (181) in the said mixing section (171,172) has an angle of inclination in fluidic proper flow direction, its further technical characterictic is, said separate chamber (30) comprises a dirt collection bin (42) in the bottom, separate chamber, and this dirt collection bin has a dirt removal pipe (44); It is further characterized in that, said separate chamber (30) comprises a dirt collection bin in the bottom (42), it is further characterized in that, a valve (441) is arranged in said recirculation conduit (442), so that the dirt recirculation flow of control from said separate chamber (30) to said pump inlet pipeline (12), and between said pump inlet pipeline 12 and said pump plumbing drain 14, the connecting tube (45) of a band valve is preferably arranged, can return in the said pump 13 with the recirculation sewage that guarantees self-pumping sewer line 14.
12, the separate chamber (30) in the described system of claim 10 comprising: a main cylindrical chamber (301), the import of this main cylindrical chamber (28,29), one in the dirt collection bin (42) of main cylindrical chamber (301) bottom, be used for getting rid of the device (44) of clean thing and be used for from main cylindrical chamber extraction water purifying device (38) from its bottom; It is characterized in that, the said import (28 that enters main cylindrical chamber (301), 29) be in top, said separate chamber, antipodal position, said import has the bossing (302) that links to each other with the sidewall of said main cylindrical chamber, each said bossing (302) that links to each other with said main cylindrical chamber (301) sidewall leads to a continuous interior guide chamber (31), this chamber has a targeting port that is directed downwards (34), so that external fluid is imported to downwards in the said main cylindrical chamber (301) circlewise, it is further characterized in that, saidly be used to discharge the dirt device and comprise a dirt collection bin (42) in said separate chamber (30) bottom, one has been used for dirt and has gone into the screeding device of said dirt collection bin (42) (39) clearly and be used for the dirt recirculation unit (442 checking the device (41) of (42) discharge dirt and be used for making the predetermined amount of dirt box from said dirt collection, 441); And its further feature be that extracting the water purifying device from the separate chamber out has a last central outlet (38) that valve is housed.
According to the separate chamber of claim 12, it is characterized in that 13, said import has spherical side wall bossing (302); And it is further characterized in that, said import has a guide chamber (31), this guide chamber (31) is made up of a no round-ended cylinder (32), there is one in this no round-ended cylinder (32) and overhangs a cylindrical wall (33) and an annular holding flange (331), by flange (331), said guide chamber is fixed in the said main cylindrical chamber (301), and said guide chamber (32) preferably has a downward targeting port of successive (34) and a upwards targeting port (35) that is positioned at the center.
According to the separate chamber of claim 12 or 13, it is characterized in that 14, said bottom screeding device comprises a rotatable drive plate (39); One best, also is that further technical characterictic be that said dirt recirculation and dirt get rid of all is to be finished by the spiral propeller (41) in the said dirt collection bin (42) by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85108424 CN1025490C (en) | 1984-02-03 | 1985-10-02 | Method and apparatus for the clarification of sewage and other impure waste water |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000446760A CA1257411A (en) | 1984-02-03 | 1984-02-03 | Apparatus for the clarification of sewage and other wastes |
| CN 85108424 CN1025490C (en) | 1984-02-03 | 1985-10-02 | Method and apparatus for the clarification of sewage and other impure waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85108424A true CN85108424A (en) | 1987-04-08 |
| CN1025490C CN1025490C (en) | 1994-07-20 |
Family
ID=25670284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85108424 Expired - Fee Related CN1025490C (en) | 1984-02-03 | 1985-10-02 | Method and apparatus for the clarification of sewage and other impure waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1025490C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102167429A (en) * | 2010-02-25 | 2011-08-31 | 天源环保有限公司 | High-efficiency coagulation device |
| CN103261102A (en) * | 2010-12-24 | 2013-08-21 | 荷兰联合利华有限公司 | Water clarification composition and process |
| CN103282314A (en) * | 2010-12-24 | 2013-09-04 | 荷兰联合利华有限公司 | Water clarification composition and process |
| CN106310756A (en) * | 2016-10-17 | 2017-01-11 | 安徽环美智能科技有限公司 | Changeable sewage filtering structure |
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1985
- 1985-10-02 CN CN 85108424 patent/CN1025490C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167429A (en) * | 2010-02-25 | 2011-08-31 | 天源环保有限公司 | High-efficiency coagulation device |
| CN103261102A (en) * | 2010-12-24 | 2013-08-21 | 荷兰联合利华有限公司 | Water clarification composition and process |
| CN103282314A (en) * | 2010-12-24 | 2013-09-04 | 荷兰联合利华有限公司 | Water clarification composition and process |
| CN103282314B (en) * | 2010-12-24 | 2016-09-14 | 荷兰联合利华有限公司 | Water clarification composition and method |
| CN103261102B (en) * | 2010-12-24 | 2016-09-14 | 荷兰联合利华有限公司 | Water clarification composition and method |
| CN111692379A (en) * | 2014-09-16 | 2020-09-22 | 夏立军 | System for be used for handling waste material |
| CN106310756A (en) * | 2016-10-17 | 2017-01-11 | 安徽环美智能科技有限公司 | Changeable sewage filtering structure |
| CN108079660A (en) * | 2017-12-18 | 2018-05-29 | 朱兆明 | A kind of Intelligent sewage filter station and its method of work |
| CN109319931A (en) * | 2018-10-13 | 2019-02-12 | 浙江筑原生态科技有限公司 | A kind of PFA-CO-MBR integrated equipment for sewage treatment and its technique |
| CN109368916A (en) * | 2018-11-06 | 2019-02-22 | 常州大学 | A kind of IAO-MBR sewage treatment Integration Equipment and its technique |
| CN109336209A (en) * | 2018-11-30 | 2019-02-15 | 长沙学院 | The method for removing phenol and zinc ion in water body simultaneously using polyelectrolyte-surfactant |
| WO2020211886A3 (en) * | 2019-12-19 | 2020-12-17 | 南京源泉环保科技股份有限公司 | Electroplating wastewater mixing and treating apparatus |
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| Publication number | Publication date |
|---|---|
| CN1025490C (en) | 1994-07-20 |
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