CN103739045A - Equipment and method for treating industrial wastewater through positive-negative polarity electrostatic absorption method - Google Patents
Equipment and method for treating industrial wastewater through positive-negative polarity electrostatic absorption method Download PDFInfo
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- CN103739045A CN103739045A CN201310619491.3A CN201310619491A CN103739045A CN 103739045 A CN103739045 A CN 103739045A CN 201310619491 A CN201310619491 A CN 201310619491A CN 103739045 A CN103739045 A CN 103739045A
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Abstract
The present invention relates to equipment and a method for treating industrial wastewater through a positive-negative polarity electrostatic absorption method. With the technical scheme, electrostatic absorption force of van der Waals force between molecules and atoms is adopted to arrange corresponding electrostatic positron polarity or electrostatic negatron polarity on the absorption end or the filtration end of the water treatment equipment according to reductive substance electron group polarity representations given by the molecule and atom structures in sewage, and the absorbate or the filtrate in the absorption end or the filtration end of the water treatment equipment is respectively arranged according to the electrostatic positron polarity or electrostatic negatron polarity. According to the present invention, with the technical scheme, reductive substances in wastewater can be effectively eliminated; and produced chemical oxygen demand protobiont is the reductive substance, and when the water does not contain organic compounds or contains less organic compounds, the excessive chemical oxygen demand problem in water can be effectively solved, such that the reclaimed water can completely meet the chemical oxygen demand emission index, the occupation area of the water treatment equipment can be reduced, and the wastewater treatment cost can be substantially reduced.
Description
Technical field
The present invention relates to a kind of water technology, particularly relate to a kind of positive-negative polarity electrostatic adhesion method industrial wastewater treatment device and method.
Background technology
Along with industrialized, develop rapidly; kind and the quantity of waste water rapidly increase; thereby also increasingly extensive and serious to the pollution of surrounding environment and people's health; and constantly threaten the mankind's health and safety; for protection of the environment, the processing of trade effluent is even more important more than the processing of municipal effluent.
The processing of trade effluent, although start as far back as 19 end of the centurys, and a large amount of experimental studies and production practice have been carried out in half a century subsequently, but due to many trade effluent complicated components, character is changeable, still have some technical problems not solve completely, for example: the waste water of food or petroleum refining process, the trade effluent that modernization industry is got rid of after producing.
In the prior art, process for treating industrial waste water can be divided into four large classes, i.e. physical treatment process, method of chemical treatment, physicochemical treatment method and biological treatment by its action principle.
Physical treatment process is by physical action, to separate, to reclaim the undissolved pollution substance that is suspended state in waste water, when processing oil film and oil droplet in waste water, is often to adopt gravitational separation process, centrifugal separation, filtration method etc. that profit is separated.
Method of chemical treatment adds certain chemical substance in sewage, utilizes chemical reaction to separate, reclaim the pollution substance in sewage, and conventional have chemical precipitation method, Coagulation Method, neutralisation, redox or an electrolytic process etc.
Physicochemical treatment method, utilizes physics chemical action to remove the pollution substance in waste water, mainly contains absorption method, ion exchange method, membrane separation process, extraction process etc.
Biological treatment, by the metabolism of microorganism, makes the Organic pollution substance that is solution, colloid and fine suspended state in waste water be converted into stable, harmless material, can be divided into aerobe facture and Anaerobic biotreatment method.
For aforesaid method, all can process preferably various trade effluents, but due to the cause of technological principle, all have that floor space is large, complex process, easily produce secondary pollutant, a whole set for the treatment of process managerial personnel are numerous, and the reducing substances matter that also contains some amount in middle water after treatment, in middle water, the chemical oxygen demand of water can not reach the requirement that well meets environmental emission standard.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of positive-negative polarity electrostatic adhesion method industrial wastewater treatment device and method, pass through the technical program, can effectively eliminate the reducing substances in waste water, and the protista that produces chemical oxygen demand is reducing substances, when in water, do not have or seldom amount contain reducing substances time, the problem that exceeds standard of chemical oxygen demand in water in can effectively solving, make middle water meet the discharge index of chemical oxygen level completely, the floor space that reduces water treating equipment, reduces cost for wastewater treatment greatly.
In order to achieve the above object, technical scheme of the present invention is achieved in that a kind of positive-negative polarity electrostatic adhesion method process for treating industrial waste water, utilize the electrostatic adhesion power of the Van der Waals force between molecule, by the reducing substances in sewage, the electron group polarity presentation of giving according to the atomic structure of molecule arranges corresponding static positron polarity or static negatron polarity in the absorption end of water treating equipment or filter end.
Adsorptive in absorption end or filter end in water treating equipment or filtrate arrange according to static positron polarity and static negatron polarity respectively.
Absorption end in water treating equipment or filter end are multistage, can be respectively with static positron polarity and static negatron polarity in the adsorptive in multistage absorption end or filter end or filtrate.
The adsorptive or the filtrate that have in multistage absorption end or filter end are separately positioned in single independently container or facility.
Positive-negative polarity electrostatic adhesion method industrial wastewater treatment device of the present invention, include oil-water separation tank, include transferpump, negative electricity polarity hay tank, positive electricity polarity hay tank and active carbon filtration tank, the feed-water end of described transferpump is connected with oil-water separation tank, transferpump output terminal is through pipe connecting and negative electricity polarity hay tank, positive electricity polarity hay tank is contacted mutually with active carbon filtration tank, described negative electricity polarity hay tank, in positive electricity polarity hay tank and active carbon filtration tank, bottom and top are respectively arranged with media bed and lower media bed, at negative electricity polarity hay tank, upper media bed in positive electricity polarity hay tank and active carbon filtration tank and be filled with respectively negatron electrostatic field filtrate and positron electrostatic field filtrate between media bed down, upper media bed in active carbon filtration tank and active carbon filtration thing is set between media bed down.。
Described media bed and media bedly by medium orifice plate, screen cloth and screen cloth fixer, formed respectively down, described screen cloth is arranged on medium orifice plate, screen cloth fixer is circular being arranged on screen cloth, and through set screw, medium orifice plate, screen cloth and screen cloth fixer are fixed as one, described screen cloth fixer and screen cloth directly contact with negatron electrostatic field filtrate, positron electrostatic field filtrate or active carbon filtration thing.
On described medium orifice plate, be provided with equally distributed open-work, the diameter of described open-work is Ф 8-Ф 12mm, and the spacing described in rn between open-work and open-work is 12-15mm, and described screen cloth is that 30-50 order metal gauze is made.
On the pipe connecting of transferpump output terminal and negative electricity polarity hay tank, be serially connected with suspended particle strainer.
Positive-negative polarity electrostatic adhesion method industrial wastewater treatment device of the present invention and method, when work, after oily water separation and suspended particle filter process, in the physical filtering of the filtrate through in hay tank, by positive-negative polarity electrostatic adhesion method Industrial Wastewater Treatment in filtrate, utilize the electrostatic adhesion power of the Van der Waals force between molecule and atom, by the reducing substances matter in sewage, the electron group polarity presentation of giving according to molecule and atomic structure is adsorbed.
Adopt the beneficial effect after technique scheme to be: a kind of positive-negative polarity electrostatic adhesion method industrial wastewater treatment device and method, pass through the technical program, can effectively eliminate the reducing substances in waste water, and the protista that produces chemical oxygen demand is reducing substances, when in water, do not have or seldom amount contain reducing substances time, the problem that exceeds standard of chemical oxygen demand in water in can effectively solving, make middle water meet the discharge index of chemical oxygen level completely, the floor space that reduces water treating equipment, reduces cost for wastewater treatment greatly.
Accompanying drawing explanation
Fig. 1 is electrostatic adhesion force curve figure between molecular atoms.
Fig. 2 is the structural representation of integral device of the present invention.
Fig. 3 is upper media bed and lower media bed sectional structure chart in integral device of the present invention.
Fig. 4 is the face upwarding assumption diagram of Fig. 3.
In figure, 1 oil-water separation tank, 2 transferpumps, media bed on 3 negative electricity polarity hay tanks, 4 positive electricity polarity hay tanks, 5 active carbon filtration tanks, 6 pipe connectings, 7,8 times media bed, 9 negatron electrostatic field filtrate, 10 positron electrostatic field filtrate, 11 active carbon filtration things, 12 medium orifice plates, 13 screen clothes, 14 screen cloth fixers, 15 open-works, 16 suspended particle strainers, 17 Integral flat-plates.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment in the present invention is described in further detail.
The positive-negative polarity electrostatic adhesion method process for treating industrial waste water the present invention relates to, utilize the electrostatic adhesion power of the Van der Waals force between molecule and atom, by the reducing substances matter in sewage, the electron group polarity presentation of giving according to molecule and atomic structure arranges corresponding static positron polarity or static negatron polarity in the absorption end of water treating equipment or filter end.
Adsorptive in absorption end or filter end in water treating equipment or filtrate arrange according to static positron polarity and static negatron polarity respectively.
Absorption end in water treating equipment or filter end are multistage, can be respectively with static positron polarity and static negatron polarity in the adsorptive in multistage absorption end or filter end or filtrate.
The adsorptive or the filtrate that have in multistage absorption end or filter end are separately positioned in single independently container or facility.
As shown in Figure 1, electrostatic adhesion power, be that Van der Waals force results from the electrostatic interaction between molecule or atom, when two atoms come in close proximity to each other electronic cloud when overlapped, occur strongly to repel, repulsive force is inversely proportional to distance 12 powers, in Fig. 1, low spot is the distance reactive force maximum that Van der Waals force maintains, claim van der Waals radius, molecular attraction is inversely proportional to distance 6 powers, and molecule repulsion is inversely proportional to distance 12 powers.By above-mentioned principle, learnt, when the particle diameter of reducing substances is larger, electrostatic adhesion power is very little, when the particle diameter of reducing substances hour, electrostatic adhesion power is very large.
As shown in Fig. 2-Fig. 4, positive-negative polarity electrostatic adhesion method industrial wastewater treatment device of the present invention, include oil-water separation tank 1, include transferpump 2, negative electricity polarity hay tank 3, positive electricity polarity hay tank 4 and active carbon filtration tank 5, the feed-water end of described transferpump 2 is connected with oil-water separation tank 1, transferpump 2 output terminals are through pipe connecting 6 and negative electricity polarity hay tank 3, positive electricity polarity hay tank 4 is contacted mutually with active carbon filtration tank 5, described negative electricity polarity hay tank 3, positive electricity polarity hay tank 4 and the interior bottom of active carbon filtration tank 5 and top are respectively arranged with media bed 7 and lower media bed 8, at negative electricity polarity hay tank 3, between in positive electricity polarity hay tank 4 and active carbon filtration tank 5 upper media bed 7 and lower media bed 8, be filled with respectively negatron electrostatic field filtrate 9 and positron electrostatic field filtrate 10, in active carbon filtration tank 5 upper media bed 7 and lower media bed 8 between active carbon filtration thing 11 is set.
Described media bed 7 and lower media bed 8 consist of medium orifice plate 12, screen cloth 13 and screen cloth fixer 14 respectively, described screen cloth 13 is arranged on medium orifice plate 12, screen cloth fixer 14 is circular being arranged on screen cloth 13, and through set screw, medium orifice plate 12, screen cloth 13 and screen cloth fixer 14 are fixed as one, described screen cloth fixer 14 and screen cloth 13 directly contact with negatron electrostatic field filtrate 9, positron electrostatic field filtrate 10 or active carbon filtration thing 11.
On described medium orifice plate 12, be provided with equally distributed open-work 15, the diameter of described open-work 15 is Ф 8-Ф 12mm, and the spacing between described open-work 15 and adjacent open-work 15 is 12-15mm, and described screen cloth 13 is that 40 order metal gauze are made.
On the pipe connecting 6 of transferpump 2 output terminals and negative electricity polarity hay tank 3, be serially connected with suspended particle strainer 16.
By above-mentioned principle, learnt, when the particle diameter of reducing substances is larger, electrostatic adhesion power is very little, when the particle diameter of reducing substances hour, electrostatic adhesion power is very large, for this reason for water treating equipment, electrostatic adhesion is arranged on to the rear portion of water treatment, now in water, larger-diameter reducing substances, to remove by physics or chemical process, is cleared up reducing substances in water thereby realize larger absorption moment.
In order to reach better treatment effect, and effectively cost-saving, electrostatic adhesion and physical filtering are synchronously carried out, not only greatly simplified equipment, the cost that has reduced positron-electron electrostatic field filtrate, overcapacity is large, makes that the expense of water treatment is per ton has declined nearly 30%.
Water treating equipment in the present invention can be arranged on an Integral flat-plate 17, or are arranged on a flat-bed trailer, to facilitate the mobile working of water treating equipment, improve the utilization ratio of water treating equipment.
The above, be only better possible embodiments of the present invention, not in order to limit scope of the present invention.
Claims (8)
1. a positive-negative polarity electrostatic adhesion method process for treating industrial waste water, it is characterized in that, utilize the electrostatic adhesion power of the Van der Waals force between molecule and atom, by the reducing substances in sewage, the electron group polarity presentation of giving according to molecule and atomic structure arranges corresponding static positron polarity or static negatron polarity in the absorption end of water treating equipment or filter end.
2. positive-negative polarity electrostatic adhesion method process for treating industrial waste water according to claim 1, is characterized in that, the adsorptive in absorption end or filter end in water treating equipment or filtrate arrange according to static positron polarity and static negatron polarity respectively.
3. positive-negative polarity electrostatic adhesion method process for treating industrial waste water according to claim 2, it is characterized in that, absorption end in water treating equipment or filter end are multistage, can be respectively with static positron polarity and static negatron polarity in the adsorptive in multistage absorption end or filter end or filtrate.
4. according to the positive-negative polarity electrostatic adhesion method process for treating industrial waste water described in claim 2 or 3, it is characterized in that, the adsorptive or the filtrate that have in multistage absorption end or filter end are separately positioned in single independently container or facility.
5. a positive-negative polarity electrostatic adhesion method industrial wastewater treatment device, include oil-water separation tank, it is characterized in that, include transferpump, negative electricity polarity hay tank, positive electricity polarity hay tank and active carbon filtration tank, the feed-water end of described transferpump is connected with oil-water separation tank, transferpump output terminal is through pipe connecting and negative electricity polarity hay tank, positive electricity polarity hay tank is contacted mutually with active carbon filtration tank, described negative electricity polarity hay tank, in positive electricity polarity hay tank and active carbon filtration tank, bottom and top are respectively arranged with media bed and lower media bed, upper media bed in negative electricity polarity hay tank and positive electricity polarity hay tank and be filled with respectively negatron electrostatic field filtrate and positron electrostatic field filtrate between media bed down, upper media bed in active carbon filtration tank and active carbon filtration thing is set between media bed down.
6. positive-negative polarity electrostatic adhesion method industrial wastewater treatment device according to claim 5, it is characterized in that, described media bed and media bedly by medium orifice plate, screen cloth and screen cloth fixer, formed respectively down, described screen cloth is arranged on medium orifice plate, screen cloth fixer is circular being arranged on screen cloth, and through set screw, medium orifice plate, screen cloth and screen cloth fixer are fixed as one, described screen cloth fixer and screen cloth directly contact with negatron electrostatic field filtrate, positron electrostatic field filtrate or active carbon filtration thing.
7. positive-negative polarity electrostatic adhesion method industrial wastewater treatment device according to claim 6, it is characterized in that, on described medium orifice plate, be provided with equally distributed open-work, the diameter of described open-work is Ф 8-Ф 12mm, spacing described in rn between open-work and open-work is 12-15mm, and described screen cloth is that 30-50 order metal gauze is made.
8. positive-negative polarity electrostatic adhesion method industrial wastewater treatment device according to claim 5, is characterized in that, on the pipe connecting of transferpump output terminal and negative electricity polarity hay tank, is serially connected with suspended particle strainer.
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Cited By (3)
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| CN104529042A (en) * | 2014-12-19 | 2015-04-22 | 河南机电高等专科学校 | Turbid water treatment device |
| CN105384299A (en) * | 2015-12-16 | 2016-03-09 | 北京百瀚清源石油技术发展有限责任公司 | Oil-containing sewage integrated purifier |
| CN109867405A (en) * | 2017-12-04 | 2019-06-11 | 上海江柘环境工程技术有限公司 | Domestic sewage processing system |
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Application publication date: 20140423 |