CN203498200U - Equipment for treating and reusing wastewater containing lead - Google Patents
Equipment for treating and reusing wastewater containing lead Download PDFInfo
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- CN203498200U CN203498200U CN201320612312.9U CN201320612312U CN203498200U CN 203498200 U CN203498200 U CN 203498200U CN 201320612312 U CN201320612312 U CN 201320612312U CN 203498200 U CN203498200 U CN 203498200U
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Abstract
The utility model discloses equipment for treating and reusing wastewater containing lead. The equipment comprises primary treatment equipment and deep treatment equipment, wherein the primary treatment equipment comprises a collected water regulation pool, a neutralization pond and a first-stage tubular membrane filter which are connected sequentially; the deep treatment equipment comprises an intermediate water pool, an ultrafiltration device, a first-stage reverse osmosis (RO) device, a second-stage RO device and a concentrated water treatment device which are connected sequentially. According to the equipment, a water outlet end of the neutralization pond for primary treatment and the concentrated water treatment device of a second-stage RO system for deep treatment are provided with the tubular membrane filters instead of sedimentation tanks which are conventionally arranged in the prior art, so that the floor area is shortened greatly, and the equipment is more compact and simpler; moreover, due to tubular membrane filtration, all particles with the diameter greater than 0.1 micron in the water can be intercepted, and then, smaller lead hydroxide flocculates formed due to the dosage deviation of a flocculant and flocculates with slower sedimentation rate can be intercepted, so that the quality and stability of outlet water are guaranteed sufficiently, and the potential problem of pollution is avoided.
Description
Technical field
The utility model relates to environment-protective water processing technology field, especially a kind of technique of lead waste water treatment and reuse and equipment.
Background technology
Store battery can produce the lead waste water of a large amount of high densitys in process of production, and underground water source is formed to very large threat, lets alone discharge if do not processed, and brings great harm must to environment and society.Lead and solubility lead salt are all toxic, and lead waste water has serious harm to human health and animal and plant growth, and amount as plumbous in every daily ingestion surpasses 0.3～1.0mg, just can, at people's cylinder accumulation, cause anaemia, neuritis etc.Chemical precipitation method is widely used a kind of processing lead waste water technique, to lead waste water, adds alkaline neutraliser or sulfide, and lead ion is reacted with hydroxyl or sulfonium ion, generates lead hydroxide precipitation or the lead sulfide precipitation of indissoluble, thereby gives separation.The supernatant liquor obtaining after available technology adopting chemical precipitation method, then directly discharge after mechanical filter, by above method, substantially can make the concentration of Pb In Exhausted Water drop to national emission request, yet, due to the effect of settling of settling tank and the filter effect of mechanical filter directly affect water outlet containing lead concentration, so often, in actual moving process, lead content is fluctuated in discharge water, there is very large pollution hidden trouble.And because lead is amphoteric metal, adopt chemical precipitation method control condition comparatively strict, during processing, need strict control to form the best pH value of lead hydroxide precipitation and the granular size of throw out in precipitation process, if in flocculation process, the deviation of flocculation agent chemical feeding quantity, forms lead hydroxide flco less than normal, and settling velocity is slower, flco will enter Hou Dao along with supernatant liquor, causes lead content in water outlet to surpass emission request.
Utility model content
It is unstable that the applicant removes lead ion discharge water quality for above-mentioned existing chemical precipitation method, there is the larger shortcomings such as pollution hidden trouble, a kind of technique and equipment of lead waste water treatment and reuse rational in infrastructure are provided, thereby can at utmost reduce the lead ion content in water outlet, guarantee stable effluent characteristics.
The technical scheme that the utility model adopts is as follows:
An equipment for lead waste water treatment and reuse, comprises primary treatment equipment and advanced treatment device two portions, and described primary treatment equipment comprises the equalizing tank that catchments, neutralization tank and the one-level tubular membrane strainer being linked in sequence; Described advanced treatment comprises intermediate pool, ultra-filtration equipment, first-stage reverse osmosis device, second level reverse osmosis apparatus and the dense water treatment device being linked in sequence, and described dense water treatment device comprises dense water collecting tank, coagulation reaction tank and the secondary tubular type film filter being linked in sequence; The Graceful mouth of a river of described one-level tubular membrane strainer is communicated to intermediate pool; The dense water out of described second level reverse osmosis apparatus is communicated to the dense water collecting tank of described dense water treatment device; The Graceful mouth of a river of described first-stage reverse osmosis device, second level reverse osmosis apparatus and secondary tubular type film filter is communicated to reuse pool; The dope outlet of described one-level tubular membrane strainer and secondary tubular type film filter is communicated to sludge sump.
Further improvement as technique scheme: connect and be provided with quartz filter and activated charcoal filter between described intermediate pool and ultra-filtration equipment.
The ultrafiltration concentrate recirculation of described ultra-filtration equipment is to intermediate pool.
The beneficial effects of the utility model are as follows:
The mode that the utility model adopts primary treatment to be combined with advanced treatment, high density lead waste water to battery manufacturers is carried out treatment and reuse, primary treatment adopts chemical neutralization precipitation and one-level tubular membrane filtration treatment technique, can remove in waste water most lead ions of approximately 90%.The high efficiency filter of tubular membrane can fully guarantee effluent characteristics, to reduce the processing load of follow-up equipment, prolongs life.Advanced treatment adopts ultrafiltration and two-pass reverse osmosis to concentrate desalination process, the dense water of two-pass reverse osmosis is entered to dense water treatment device and again process, and again utilizes secondary tubular type film filter to filter, thereby removes in dense water approximately 70～80% lead ion.The Graceful water of first-stage reverse osmosis device, second level reverse osmosis apparatus and secondary tubular type film filter flow to reuse pool and carries out recycle.
The utility model is in the water side of primary treatment neutralization tank, and be all provided with tubular membrane strainer in the dense water treatment of advanced treating secondary reverse osmosis system, replaced the conventional settling tank arranging in prior art, not only floor space is dwindled greatly, and equipment is more compact succinct; And tubular membrane is filtered and can be tackled all particles that diameter in water is greater than 0.1 μ m, thereby for the deviation because of flocculation agent chemical feeding quantity, form lead hydroxide flco less than normal, and the slower flco of settling velocity can be tackled, thereby fully guaranteed water quality and the stability of water outlet, avoided pollution hidden trouble.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present utility model.
In figure: 1, the equalizing tank that catchments; 2, neutralization tank; 3, one-level tubular membrane strainer; 4, sludge sump; 5, pressure filter; 6, intermediate pool; 7, quartz filter; 8, activated charcoal filter; 9, ultra-filtration equipment; 10, first-stage reverse osmosis device; 11, second level reverse osmosis apparatus; 12, secondary tubular type film filter; 13, reuse pool.
Embodiment
As shown in Figure 1, lead waste water treatment and reuse technique of the present utility model is divided into primary treatment and advanced treatment two portions, primary treatment adopts chemical neutralization precipitation and one-level tubular membrane filtration treatment technique, advanced treatment adopts ultrafiltration and the concentrated desalination process of two-pass reverse osmosis, and the dense water of two-pass reverse osmosis is carried out to secondary tubular type membrane filtration.
One, primary treatment equipment:
Equalizing tank 1 catchments: the equalizing tank 1 that catchments plays collection waste water, and waste water is carried out to the object of homogeneous.
Neutralization tank 2: the effect of neutralization tank 2 is to adjust pH value 9.2～9.5, makes lead ion reaction form plumbous oxyhydroxide, and suitably adds flocculation agent according to practical situation.
One-level tubular membrane strainer 3: fully the dam throw out of leaded oxyhydroxide of periosteum.
Sludge sump 4: sludge sump 4 is used for the mud after storage tube membrane concentration.
Pressure filter 5: the concentrated solution after filter, after pressure filter 5 filter-press dehydrations, forms mud cake outward transport.
Two, advanced treatment (middle water Treatment for Reuse) equipment:
Intermediate pool 6: water yield buffering, guarantees the normal operation of subsequent processing device.
Quartz filter 7: utilize suspended substance in medium trap water to use clarification of water.
Activated charcoal filter 8: activated charcoal filter 8 is mainly used in, except anhydrating middle chlorine residue, organism and colloid silicon etc., usually used as the pre-processing device of film treatment facility, can effectively preventing membrane degradation etc., guarantees that follow-up equipment is normally used.
Ultra-filtration equipment 9: ultrafiltration is to take one of membrane separation technique that pressure is impellent, take macromole and separation of small molecuies as object, and membrane pore size is between 20～1000A °.Ultrafiltration is to utilize a kind of pressure active membrane, colloid, particle and the relatively high material of molecular weight in the lower trap water of extraneous impellent (pressure) effect, and water and little particles of solute are through the sepn process of film.The material that micropore screening by film surface can molecular weight cut-off is 3x10000～1x10000.When processed water by means of the work of ambient pressure in order to certain flow velocity during by film surface, water molecules and molecular weight are less than 300～500 solute and see through film, and the particulate, macromole etc. that are greater than fenestra are because sieving action is trapped, thereby water is purified.That is to say, when water is by after ultra-filtration membrane, the most of colloid silicon containing can be removed in water, can remove a large amount of organism etc. simultaneously.
First-stage reverse osmosis device 10: the water outlet of ultra-filtration equipment 9 is carried out to first-stage reverse osmosis.
Second level reverse osmosis apparatus 11: the dense water to first-stage reverse osmosis device 10 carries out two-pass reverse osmosis.
Secondary tubular type film filter 12: the dense water that reverse osmosis leaches reuse or discharge after periosteum concentration.
Reuse pool 13: the clear water water outlet of storage first-stage reverse osmosis device 10, second level reverse osmosis apparatus 11 and secondary tubular type film filter 12, may be output to plant area or Office Area and carry out reuse, enter municipal sewage pipe network for example, between flushing sanitation after.
Real work flow process of the present utility model is as follows: the sewage of the equalizing tank 1 that catchments promotes and enters neutralization tank 2 through pump, the interior tube-type micropore whipping appts that arranges of neutralization tank 2, utilize blower fan to carry out pneumatic blending, add alkaline matter (liming or liquid caustic soda) simultaneously, make waste water and the abundant hybrid reaction of alkaline matter in neutralization tank 2, waste water pH value is adjusted to 9.2～9.5, because it is 9.2～9.5 o'clock that the most effective lead hydroxide precipitation occurs in pH value, when higher pH value, there will be anti-molten phenomenon, the effect that precipitation of hydroxide forms declines rapidly, so the pH value of controlling well is the key of this technique.The micropore air aerating apparatus that installation is set in neutralization tank 2 has the utilization ratio that improves oxygen, by neutralization tank 2 is forced to oxygenation, the ferrous ion that may exist in waste water is carried out to oxide treatment, and conversion produces the ferric iron (Fe3+) that is difficult for molten water, forms Fe (OH)
3flco, the consumption of minimizing rear class medicament.According to practical situation, add a small amount of flocculation agent, coagulant aids, make the suspended solid in waste water form glue pinniform object.Water outlet enters one-level tubular membrane strainer 3 and filters.
Tubular membrane strainer can be tackled all particles that diameter in water is greater than 0.1 μ m, can make lead ion content in effluent clear solution be less than 0.05mg/L, far below national grade one discharge standard, the clear liquid after one-level tubular membrane strainer 3 filtration treatment is adjusted to reach after 6～9 through pH and is expelled to intermediate pool 6.Dope after one-level tubular membrane strainer 3 filters is aspirated and is entered sludge sump 4 by sludge pump, then utilizes pressure filter 5 to carry out sludge drying processing, filter cake outward transport after press filtration, and press filtration filtrate is back in the equalizing tank 1 that catchments and again processes.
Water outlet after above-mentioned filtration enters ultra-filtration equipment 9.Ultrafiltration be a kind of take screening be separation principle, take pressure as impellent, realize the membrane sepn process of mechanical separation.Hollow fiber ultrafiltration membrane is the asymmetric semipermeable membrane that adopts special process to make with macromolecular material, be the densely covered micropore of capillary hollow shape (hollow fiber) tube wall, stoste in film or film flow outward, under the effect of pressure, small-molecule substance sees through film and becomes ultrafiltrated, and macromolecular substance wherein and colloid, bacterium etc. are trapped within outside film, become concentrated solution, thereby complete the separation, concentrated and purify of material.Ultra-filtration equipment 9 of the present utility model adopts cross-current type to filter, and can all remove the colloid and the particulate matter that are greater than 0.1um; Larger molecular organics is had to good removal effect; Be subject to raw water quality influence of fluctuations little, stable effluent quality; Operating pressure is low, and energy-saving effect is remarkable, and level of automation is high.
Ultra-filtration equipment 9 water outlets enter reverse osmosis system and proceed to process.Reverse-osmosis membrane element be take pressure as impellent, carries out membrane sepn desalination, can remove dissolved organic matter in water, bacterium, thermal source, virus etc. simultaneously.First-stage reverse osmosis system is processed ultrafiltration water outlet, and the water outlet of first-stage reverse osmosis system flows out to reuse pool 13.Two-stage reverse osmosis system is mainly processed the dense water that first-stage reverse osmosis system produces, salt content in this dense water is higher, approximately there are 10000 left and right, if get back to for a long time intermediate pool 6 again processing can cause salinity in sewage to pile up, affect the long-term stability operation of first-stage reverse osmosis system, therefore this strand of dense hydromining carried out to further desalting treatment with two-stage reverse osmosis system.Two-stage reverse osmosis system is processed the water purification of acquisition flooding quantity approximately 50% to reuse pool 13, the dense water of discharging enters coagulation reaction tank, again regulate pH value and add flocculation agent, then entering secondary tubular type film filter 12 processes, the water outlet of secondary tubular type film filter 12 flow to reuse pool 13, and the dope of secondary tubular type film filter 12 drains into sludge sump 4 and carries out sludge drying processing.Clear water in reuse pool 13 may be output to plant area or reuse is carried out in Office Area, enters municipal sewage pipe network for example, between flushing sanitation after.
The core of tubular membrane strainer is unique tubular membrane, is a kind of film pipe that has resistance to epistasis and chemical resistance most.Because it is close to ultra-filtration filters aperture, use such tubular membrane can efficiently remove the pollutent in waste water, while is due to the structure of its uniqueness, the waste water that can make to contain mud granule enters film system and carries out direct solid-liquid separation, therefore periosteum technique is compared with at present common technical process, can save the links such as settling tank, multi-medium filtering, sand filtration, carbon filter and ultrafiltration, in the field of current Industrial Wastewater Treatment, be called as " the most effective technology now ", can really realize the object of discharge of wastewater or reuse.
Its advantage is: (1) its flow velocity is two to three times of flow velocity of other microfiltration membrane on market.
(2) it has the ability of filtering particle contamination material and can not divulge the phenomenon of mud particle.
(3) filter membrane can bear acidity, alkalescence, the cleaning of bleaching and oxidation medicament.
(4) film pipe has durable quality, and comparing it with general filtering material has the longer usage period.
Tubular membrane component has adopted unique compound film tube, its pvdf membrane can be cross-linked or be embedded in PE supporting tube inwall with PVDF supporting tube inwall admirably and form powerful combination with supporting tube, film pipe can be worked under higher operating pressure and backwash pressure and obtain high solid removal efficiency and membrane flux, thereby reduce system floor space.TMF tube type filter membrance assembly includes the many film pipes that are composited by pvdf membrane and porous tubular support: wherein supporting tube adopts sintering process to be prepared from by HDPE or PVDF, have abundant meshy surface pore system and spongiform three-dimensional pore system, pvdf membrane can be embedded into and in these holes, forms powerful combination with supporting tube and make film pipe have excellent separation performance and extremely strong structural stability.Periosteum assembly can not only move and can tolerate most aggressive chemistry medicaments under 0～14 pH condition.Periosteum assembly adopts cross flow filter mode, and during operation, feed liquid flows in film pipe enough to form the speed of turbulent flow, and under the pressure-driven of 20～80psi, water sees through fenestra and flows to film pipe outside, and solid particulate tunicle is trapped in film pipe inside; Thereby turbulent flow can prevent the particle being trapped and deposit and maintain the high-throughput of film and extend filtration cycle on film inside pipe wall.The design of cross flow filter and tube-type micropore film combines without using pre-filtering, and can Disposal quality concentration high to 5% feed liquid.
The mode that the utility model adopts primary treatment to be combined with advanced treatment, high density lead waste water to battery manufacturers is carried out treatment and reuse, primary treatment adopts chemical neutralization precipitation and one-level tubular membrane filtration treatment technique, can remove in waste water most lead ions of approximately 90%.The high efficiency filter of tubular membrane can fully guarantee effluent characteristics, to reduce the processing load of follow-up equipment, prolongs life.Advanced treatment adopts ultrafiltration and two-pass reverse osmosis to concentrate desalination process, the dense water of two-pass reverse osmosis is entered to dense water treatment device and again process, and again utilizes secondary tubular type film filter to filter, thereby removes in dense water approximately 70～80% lead ion.The Graceful water of first-stage reverse osmosis device, second level reverse osmosis apparatus and secondary tubular type film filter flow to reuse pool and carries out recycle.
The utility model is in the water side of primary treatment neutralization tank, and is all provided with tubular membrane strainer in the dense water treatment of two-stage reverse osmosis system, replaced the conventional settling tank arranging in prior art, and not only floor space is dwindled greatly, and equipment is more compact succinctly; And tubular membrane is filtered and can be tackled all particles that diameter in water is greater than 0.1 μ m, thereby for the deviation because of flocculation agent chemical feeding quantity, form lead hydroxide flco less than normal, and the slower flco of settling velocity can be tackled, thereby fully guaranteed water quality and the stability of water outlet, avoided pollution hidden trouble.The Inlet and outlet water water-quality ratio of the present embodiment processing lead waste water is more as shown in the table.
| ? | Influent quality | Effluent quality |
| Lead ion, Pb 2+ | 3～10 mg/l | ≤0.05mg/l |
| CODcr | ≤300mg/l | ≤100 mg/l |
| PH value | 1～2 | 6～9 |
| SS | ≤200mg/l | ≤20mg/l |
More than describing is to explanation of the present utility model, is not the restriction to utility model, and without prejudice to the utility model spirit in the situation that, the utility model can be done any type of modification.
Claims (3)
1. an equipment for lead waste water treatment and reuse, comprises primary treatment equipment and advanced treatment device two portions, it is characterized in that:
---described primary treatment equipment comprises the equalizing tank that catchments (1), the neutralization tank (2) and one-level tubular membrane strainer (3) being linked in sequence;
---described advanced treatment comprises intermediate pool (6), ultra-filtration equipment (9), first-stage reverse osmosis device (10), the second level reverse osmosis apparatus (11) and dense water treatment device being linked in sequence, and described dense water treatment device comprises dense water collecting tank, coagulation reaction tank and the secondary tubular type film filter (12) being linked in sequence;
---the Graceful mouth of a river of described one-level tubular membrane strainer (3) is communicated to intermediate pool (6); The dense water out of described second level reverse osmosis apparatus (11) is communicated to the dense water collecting tank of described dense water treatment device;
---described first-stage reverse osmosis device (10), second level reverse osmosis apparatus (11) are communicated to reuse pool (13) with the Graceful mouth of a river of secondary tubular type film filter (12);
---described one-level tubular membrane strainer (3) is communicated to sludge sump (4) with the dope outlet of secondary tubular type film filter (12).
2. according to the equipment of lead waste water treatment and reuse claimed in claim 1, it is characterized in that: between described intermediate pool (6) and ultra-filtration equipment (9), connect and be provided with quartz filter (7) and activated charcoal filter (8).
3. according to the equipment of lead waste water treatment and reuse claimed in claim 1, it is characterized in that: the ultrafiltration concentrate recirculation of described ultra-filtration equipment (9) is to intermediate pool (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320612312.9U CN203498200U (en) | 2013-10-08 | 2013-10-08 | Equipment for treating and reusing wastewater containing lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320612312.9U CN203498200U (en) | 2013-10-08 | 2013-10-08 | Equipment for treating and reusing wastewater containing lead |
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| Publication Number | Publication Date |
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| CN203498200U true CN203498200U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320612312.9U Expired - Fee Related CN203498200U (en) | 2013-10-08 | 2013-10-08 | Equipment for treating and reusing wastewater containing lead |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466844A (en) * | 2013-10-08 | 2013-12-25 | 宜兴市欧瑞特环保科技有限公司 | Process and device for processing and recycling leaded wastewater |
| CN105461139A (en) * | 2015-12-31 | 2016-04-06 | 上海丰信环保科技有限公司 | Zero discharging process for nickeliferous heavy metal wastewater |
| CN107051210A (en) * | 2017-05-11 | 2017-08-18 | 南京益能环境工程有限公司 | A kind of suspension is resistant to ultrafiltration apparatus |
| CN107867767A (en) * | 2016-09-26 | 2018-04-03 | 常州江南环境工程有限公司 | A kind of concentration unit and concentrating method of high concentration salt solution |
-
2013
- 2013-10-08 CN CN201320612312.9U patent/CN203498200U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466844A (en) * | 2013-10-08 | 2013-12-25 | 宜兴市欧瑞特环保科技有限公司 | Process and device for processing and recycling leaded wastewater |
| CN105461139A (en) * | 2015-12-31 | 2016-04-06 | 上海丰信环保科技有限公司 | Zero discharging process for nickeliferous heavy metal wastewater |
| CN105461139B (en) * | 2015-12-31 | 2020-10-30 | 上海丰信环保科技有限公司 | Zero discharge process for nickel-containing heavy metal wastewater |
| CN107867767A (en) * | 2016-09-26 | 2018-04-03 | 常州江南环境工程有限公司 | A kind of concentration unit and concentrating method of high concentration salt solution |
| CN107867767B (en) * | 2016-09-26 | 2023-12-08 | 常州江南环境工程有限公司 | Concentration device and concentration method for high-concentration brine |
| CN107051210A (en) * | 2017-05-11 | 2017-08-18 | 南京益能环境工程有限公司 | A kind of suspension is resistant to ultrafiltration apparatus |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Jinhuan Environmental Protection Equipment Co., Ltd. Assignor: Yixing Ouruite Environmental Protection Technology Co., Ltd. Contract record no.: 2016320010014 Denomination of utility model: Equipment for treating and reusing wastewater containing lead Granted publication date: 20140326 License type: Exclusive License Record date: 20160310 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20181008 |