CN102502990A - System and method for treating wastewater in serious contamination industry - Google Patents
System and method for treating wastewater in serious contamination industry Download PDFInfo
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- CN102502990A CN102502990A CN2011103434564A CN201110343456A CN102502990A CN 102502990 A CN102502990 A CN 102502990A CN 2011103434564 A CN2011103434564 A CN 2011103434564A CN 201110343456 A CN201110343456 A CN 201110343456A CN 102502990 A CN102502990 A CN 102502990A
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Abstract
The invention relates to a system and a method for treating wastewater in serious contamination industry. A sewage salinity adjustment tank is sequentially connected with a grating, and a sewage separation tank through pipelines; the sewage separation tank is connected with a water feeding recycling tank through a pipeline; sewage discharging pipes of a plurality of sewage treatment separators which are arranged in the sewage separation tank are sequentially connected with a sludge concentration tank and a filter press through sludge discharging main pipes; the liquid output port of the filter press is sequentially connected with a filter-out liquid tank and the sewage salinity adjustment tank through pipelines; cured matter is discharged from a curing port of the filter press; visible matter is separated by using specific surface tension of saline water at one time, so working processes are saved, and secondary pollution is avoided; the system is not influenced by ambient temperature, is obvious in treatment effect when treating complex inflow, and can run stably; and the system is not limited by fields, the treated water can enter a plant for recycling, and compared with the conventional mode, the method has the advantage that the minimum discharge amount is achieved.
Description
Technical field
The present invention relates to a kind of apparatus and method that are used for WWT, particularly a kind of system and method for wastewater treatment to the serious pollution Industrial Wastewater Treatment.
Background technology
In a plurality of focus industries such as pharmacy, food, chemical industry, petrochemical industry, metallurgy, agricultural chemicals, all relate to the Industrial Wastewater Treatment problem.For the technology for treating industrial waste water in above-mentioned field, press degree of treatment and divide, can be divided into one-level, secondary and tertiary treatment.
One-level is handled the main solid pollution material that is suspended state in the sewage of removing, and the physical treatment process major part can only be accomplished the one-level treatment requirement.Through the sewage that one-level is handled, BOD generally can remove about 30%, does not reach emission standard.One-level is handled the pre-treatment that belongs to second-stage treatment.The bulk treatment process gets into settling pit for the treatment sewage that passes through grid passes through screen filter through lift pump, through the sewage entering primary sedimentation pond of sand water sepn.
Sewage second-level handle be sewage after one-level is handled, again through having the aeration tank of active sludge and the processing of settling tank, the technological process that sewage is further purified.Biological process commonly used and flocculence.Biological process is to utilize microorganism treating sewage, mainly removes one-level and handles the organism in the sewage of back; Flocculence is to destroy colloidal stability through adding flocculation agent, makes colloidal particle that wadding take place to coagulate, produce throw out and adsorption takes place, and mainly be to remove one-level to handle the suspended substance inorganic in the sewage of back and the organism of colloidal solid thing or lower concentration.Sewage through after the second-stage treatment generally can reach requirement and the wastewater discharge standard that farming is poured water.But still possibly cause the pollution of natural water body under certain condition.
Tertiary sewage treatment be sewage after second-stage treatment, further remove other pollutant components in the sewage (as; Nitrogen, phosphorus, fine suspended substance, micro-content organism and inorganic salt etc.) process treatment process.Main method has biological denitrificaion method, coagulation sedimentation method, sand filtration method, diatomite filtration method, activated carbon filter process, method of evaporation, cold method, reverse osmosis method, ion exchange method and electroosmose process etc.
It is huge that existing high pollution technique for treating industrial wastewater all faces investment, and technical process is complicated; Running cost is high; The dispensing consumption causes drawbacks such as secondary pollution greatly.
Summary of the invention
In view of the situation of prior art, the invention provides a kind of system and method for wastewater treatment to the serious pollution Industrial Wastewater Treatment.This system uses uniprocessing to substitute traditional tertiary treatment pattern through WWT separator high efficiency separation effect and method for discharging pollution, can reach emission standard, has solved problems such as traditional tertiary treatment complex process, dispensing secondary pollution, complicated operation.Investment running cost is significantly reduced.The WWT separator has been declared national patent, and (Old Name: the seawater swimming pool filters protein separator, the patent No.: 201020281768.8).
The present invention is for realizing above-mentioned purpose; The technical scheme of being taked is: a kind of system to the serious pollution Industrial Wastewater Treatment; Comprise WWT separator, pressure filter; It is characterized in that: also comprise sewage salinity equalizing tank, grid, sewage separation cell, sludge thickener, leach liquid cell, add the water reuse tank, blowdown is responsible for; Said sewage salinity equalizing tank is connected with grid, sewage separation cell through pipeline successively, said sewage separation cell through pipeline with add the water reuse tank and be connected, the blow-off pipe that is arranged on several interior said WWT separators of sewage separation cell is connected with sludge thickener, pressure filter through the blowdown person in charge successively; Said pressure filter liquid outlet through pipeline successively with leach liquid cell, sewage salinity equalizing tank is connected, pressure filter solidifies mouthful discharges a cured article.
A kind of method to the serious pollution Industrial Wastewater Treatment is characterized in that step is following:
1., with in the plant effuent suction sewage salinity equalizing tank;
2., salt is added in the sewage salinity equalizing tank, equalizing tank water saltiness is >=15 ‰;
After the sewage that 3., will contain the salt amount filters the grid filtration of order number through 60-80; Get into through sewage water inlet pipe in the sewage separation cell of the left end that two baffle plates cut apart; Be provided with in the separation cell two or four WWT separators separate sewage; Isolated dirt is responsible for through the blowdown that is connected with the blow-off pipe of drain separator and is sent into sludge thickener; Isolated treated water gets in the right-hand member sewage separation cell that two baffle plates cut apart through the bottom nozzle of the port of first baffle plate and second baffle plate; Be provided with in the sewage separation cell two or four WWT separators carry out secondary separation; Isolated dirt is responsible for through the blowdown that is connected with the blow-off pipe of drain separator and is sent into sludge thickener, and isolated treated water is sent into factory and utilized through sewage rising pipe qualified discharge or through adding the water reuse tank;
4., the dirt that gets into sludge thickener is through the pressure filter compression, the liquid that press filtration goes out is sent into waste water salinity equalizing tank 1 again through leaching liquid cell, the dirt that press filtration goes out concentrates curing through pressure filter to it.
Characteristics of the present invention are: 1, utilize the disposable separation visible of salt solution particular surface tension force; Colloid; Organic matters such as ammonia nitrogen; Toxic substances such as heavy metal need not to drop into compound and coagulate multinomial steps such as wadding, have not only saved operation but also avoid secondary pollution.2, traditional wastewater tupe, run into contain multiple material fluctuating range bigger come water the time, influenced at all by operation and processing power can't steadily carry out; Native system is owing to only need to consider come index of water saltiness, the requirement of the no saliferous index upper limit, and also not influenced by ambient temperature, treatment effect is particularly evident when dealing with complicated is come water, do not have obviously to fluctuate, but steady running.3, this occupation area of equipment is little; Avoided in the prior art WWT need excavate infrastructure mode such as settling tank, separate unit size 600mm * 600mm * 600mm can handle the many groups of water yield series connection according to need and put; Not limited by the place, can move as required or vehicle-mounted yet; This system separate unit WWT separator operation current consumption is merely 0.3KW, per hour 9 tons of theoretical treatment amount separate units, and material all is corrosion-resistant acrylic material, resistance to corrosion is strong, 20 years work-ing life of main body.Safeguard simply that 4, whole process is come the cleaning of water grid except first section, the adjustment of salt amount, and outside the terminal solidification treatment, the entire sewage treating processes only needs left rotation and right rotation adjustment adjustable pipe, and is simple to operate.5, the water after handling can get into factory and utilizes, compares traditional mode and reaches minimum quantity discharged.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a side-view of the present invention;
Fig. 3 is the structural representation that eight WWT separators are housed of the present invention;
Fig. 4 is the structural representation of WWT separator of the present invention;
What Fig. 5 was connected with rotor for the present invention fixedly connects dish and twines the structural representation of taking turns;
Fig. 6 fixedly connects the dish front view for the present invention;
Fig. 7 twines the wheel front view for the present invention;
Fig. 8 twines wheel for the present invention and launches synoptic diagram;
Fig. 9 is the present invention's two cover systems synoptic diagram that is connected in series;
Figure 10 is two cover systems of eight WWT separators of the present invention synoptic diagram that is connected in series;
Figure 11 is a WWT schema of the present invention.
Embodiment
Extremely shown in Figure 11 like Fig. 1; A kind of system to the serious pollution Industrial Wastewater Treatment; Comprise WWT separator 3, pressure filter 6; Also comprise sewage salinity equalizing tank 1, grid 2, sewage separation cell 4, sludge thickener 5, leach liquid cell 7, add water reuse tank 8, blowdown is responsible for 9; Sewage salinity equalizing tank 1 is connected with grid 2, sewage separation cell 4 through pipeline successively, sewage separation cell 4 through pipeline with add water reuse tank 9 and be connected, the blow-off pipe 3-6 that is arranged on several interior said WWT separators 3 of sewage separation cell 4 is connected with sludge thickener 5, pressure filter 6 through the blowdown person in charge 10 successively; Pressure filter 6 liquid outlets through pipeline successively with leach liquid cell 7, sewage salinity equalizing tank 1 is connected, pressure filter 6 solidifies mouthful discharges cured articles.Consider the day output that pollutant discharging unit needs in the actual treatment and handle rank or site condition, but can be connected in series sewage separation cell 1 level two or more as required.
The spacing of first baffle plate 1-3 and second baffle plate 1-4 is >=200mm; The distance of the horizontal plane at the upper surface of first baffle plate 1-3 and separation cell 1 top is >=200mm; Bottom surface distance in the bottom face of second baffle plate 1-4 and the separation cell 1 is >=200mm.
It is horizontal to be respectively equipped with 3, two drain separators 3 of two apparatus for treating sewage in the left and right sides sewage separation cell 1 that 1 two baffle plates of sewage separation cell are cut apart.Being respectively equipped with 3, four drain separator 3 horizontal symmetrical of four drain separators in the left and right sides sewage separation cell 1 that 1 two baffle plates of sewage separation cell are cut apart arranges.
Rotor 3-31 among the filtration pump 3-3 be provided with coupled connect fixedly meet dish 3-32, twine wheel 3-33 and be wrapped in and fixedly connect on the dish 3-32, pass the circular hole 3-35 that fixedly connects on the dish 3-32 with plastics button 3-34 and will twine and take turns 3-33 and be fixed on fixedly to connect and coil on the 3-32.Twining wheel 3-33 is made up of the plastic tape winding that both sides are provided with groove 3-36.
The quantity of water circulating pump 3-3 is decided according to the volume size of separation cell 1, and the quantity of volume systemic circulation water pump 3-3 is with regard to power many or increasing water circulating pump 3-3, and the water circulating pump 3-3 that WWT separator 3 of the present invention is provided with is three.Filtration pump 3-3 model is: HX-6540.
A kind of method to the serious pollution Industrial Wastewater Treatment, step is following:
1., with in the plant effuent suction sewage salinity equalizing tank 1;
2., salt is added in the sewage salinity equalizing tank 1 equalizing tank water saltiness >=15 ‰;
After the grid 2 that the sewage that 3., will contain the salt amount filters the order number through 60-80 filters; Get into through sewage water inlet pipe 1-1 in the sewage separation cell 4 of the left end that two baffle plates cut apart; Be provided with in the separation cell two or 3 pairs of sewage of four WWT separators separate; Isolated dirt is responsible for 10 through the blowdown that is connected with the blow-off pipe 3-6 of drain separator 3 and is sent into sludge thickener 5; Isolated treated water gets in the right-hand member sewage separation cell 4 that two baffle plates cut apart through the bottom nozzle of the port of first baffle plate 1-3 and second baffle plate 1-4; Be provided with in the sewage separation cell 4 two or four WWT separators 3 carry out secondary separation; Isolated dirt is responsible for 10 through the blowdown that is connected with the blow-off pipe 3-6 of drain separator 3 and is sent into sludge thickener 5, and isolated treated water is through sewage rising pipe 1-2 qualified discharge or send into and add water reuse tank 9 and send into factory again and utilize;
4., the dirt that gets into sludge thickener 5 is through pressure filter 6 compressions, the liquid that press filtration goes out is sent into waste water salinity equalizing tank 1 again through leaching liquid cell 7, the dirt that press filtration goes out concentrates curing through pressure filter 6 to it.
Principle of work:
Formed surface in contact between air and the sodium chloride-containing salt solution; Have special surface tension, contain the ammonia of great deal of high concentration in the sewage, organic impuritys such as nitrogen, heavy metal will inevitably be adsorbed at this and compile; If can enlarge this surf zone by sodium chloride-containing salt solution; For example produce bubble (manufacturing foam), then have more ammonia, nitrogen, heavy metal and molecule etc. are adsorbed on this surface.Foamy viscosity will strengthen along with the expansion on surface, and fading away of bubble and changing.Therefore, the validity of filtration pump just be between enlargement gas and the liquid surf zone with and specific surface tension.
Claims (7)
1. system to the serious pollution Industrial Wastewater Treatment; Comprise WWT separator (3), pressure filter (6); It is characterized in that: also comprise sewage salinity equalizing tank (1), grid (2), sewage separation cell (4), sludge thickener (5), leach liquid cell (7), add water reuse tank (8), blowdown is responsible for (9); Said sewage salinity equalizing tank (1) is connected with grid (2), sewage separation cell (4) through pipeline successively; Said sewage separation cell (4) through pipeline with add water reuse tank (9) and be connected; The blow-off pipe (3-6) that is arranged on several the said WWT separators (3) in the sewage separation cell (4) is connected with sludge thickener (5), pressure filter (6) through the blowdown person in charge (10) successively; Said pressure filter (6) liquid outlet through pipeline successively with leach liquid cell (7), sewage salinity equalizing tank (1) is connected, pressure filter (6) solidifies mouthful discharges a cured article.
2. a kind of system to the serious pollution Industrial Wastewater Treatment according to claim 1 is characterized in that: said sewage separation cell (1) but that level is connected in series is two or more.
3. a kind of system according to claim 1 to the serious pollution Industrial Wastewater Treatment; It is characterized in that: said sewage separation cell (1) one end is provided with sewage water inlet pipe (1-1); Separation cell (1) the other end is provided with the sewage rising pipe of handling (1-2); Mid-way spacing in separation cell (1) is provided with first baffle plate (1-3) and second baffle plate (1-4); The both ends of the surface of said first baffle plate (1-3) and bottom face respectively with sewage separation cell (1) in two sides and bottom surface contact fixing; The horizontal plane at the upper surface of first baffle plate (1-3) and sewage separation cell (1) top leaves an end distance and leaves; Two sides in the both ends of the surface of said second baffle plate (1-4) and the separation cell (1) contact fixing, and the interior bottom surface of the bottom face of second baffle plate (1-4) and sewage separation cell (1) is left an end distance and left, and the upper surface of second baffle plate (1-4) and sewage separation cell (1) top are on a horizontal plane; In the left and right sides separation cell (1) that two baffle plates are cut apart, be respectively equipped with several WWT separators (3).
4. a kind of system according to claim 3 to the serious pollution Industrial Wastewater Treatment, it is characterized in that: the spacing of said first baffle plate (1-3) and second baffle plate (1-4) is >=200mm; The distance of the horizontal plane at the upper surface of first baffle plate (1-3) and separation cell (1) top is >=200mm; Bottom surface distance in the bottom face of second baffle plate (1-4) and the separation cell (1) is >=200mm.
5. a kind of system according to claim 3 to the serious pollution Industrial Wastewater Treatment; It is characterized in that: be respectively equipped with two apparatus for treating sewage (3) in the left and right sides sewage separation cell (1) that (1) two baffle plate of said sewage separation cell is cut apart, two drain separators (3) are horizontal.
6. a kind of system according to claim 3 to the serious pollution Industrial Wastewater Treatment; It is characterized in that: be respectively equipped with four drain separators (3) in the left and right sides sewage separation cell (1) that said two baffle plates are cut apart, four drain separators (3) horizontal symmetrical is arranged.
7. method to the serious pollution Industrial Wastewater Treatment is characterized in that step is following:
1., with in the plant effuent suction sewage salinity equalizing tank (1);
2., salt is added in the sewage salinity equalizing tank (1), equalizing tank water saltiness is >=15 ‰;
After the grid (2) that the sewage that 3., will contain the salt amount filters the order number through 60-80 filters; Get into through sewage water inlet pipe (1-1) in the sewage separation cell (4) of the left end that two baffle plates cut apart; Be provided with in the separation cell two or four WWT separators (3) separate sewage; Isolated dirt is responsible for (10) through the blowdown that is connected with the blow-off pipe (3-6) of drain separator (3) and is sent into sludge thickener (5); Isolated treated water gets in the right-hand member sewage separation cell (4) that two baffle plates cut apart through the bottom nozzle of the port of first baffle plate (1-3) and second baffle plate (1-4); Be provided with in the sewage separation cell (4) two or four WWT separators (3) carry out secondary separation; Isolated dirt is responsible for (10) through the blowdown that is connected with the blow-off pipe (3-6) of drain separator (3) and is sent into sludge thickener (5), and isolated treated water is sent into factory and utilized through sewage rising pipe (1-2) qualified discharge or through adding water reuse tank (9);
4., the dirt that gets into sludge thickener (5) is through pressure filter (6) compression, the liquid that press filtration goes out is sent into waste water salinity equalizing tank 1 again through leaching liquid cell (7), the dirt that press filtration goes out concentrates curing through pressure filter (6) to it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103434564A CN102502990A (en) | 2011-11-03 | 2011-11-03 | System and method for treating wastewater in serious contamination industry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103434564A CN102502990A (en) | 2011-11-03 | 2011-11-03 | System and method for treating wastewater in serious contamination industry |
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| CN102502990A true CN102502990A (en) | 2012-06-20 |
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| CN2011103434564A Pending CN102502990A (en) | 2011-11-03 | 2011-11-03 | System and method for treating wastewater in serious contamination industry |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016559A (en) * | 2015-08-18 | 2015-11-04 | 杭州启澄科技有限公司 | Paper mill wastewater pretreatment method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016559A (en) * | 2015-08-18 | 2015-11-04 | 杭州启澄科技有限公司 | Paper mill wastewater pretreatment method |
| CN105016559B (en) * | 2015-08-18 | 2017-04-05 | 瞿尧 | A kind of preprocess method of waste water of paper mill |
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Application publication date: 20120620 |