CN203794712U - Efficient water treatment device - Google Patents
Efficient water treatment device Download PDFInfo
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- CN203794712U CN203794712U CN201420045912.6U CN201420045912U CN203794712U CN 203794712 U CN203794712 U CN 203794712U CN 201420045912 U CN201420045912 U CN 201420045912U CN 203794712 U CN203794712 U CN 203794712U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 239000012528 membrane Substances 0.000 claims abstract description 47
- 238000005345 coagulation Methods 0.000 claims abstract description 38
- 230000015271 coagulation Effects 0.000 claims abstract description 38
- 239000010802 sludge Substances 0.000 claims abstract description 32
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 18
- 239000000126 substance Substances 0.000 claims abstract description 12
- 238000004062 sedimentation Methods 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 26
- 239000003206 sterilizing agent Substances 0.000 claims description 21
- 238000005189 flocculation Methods 0.000 claims description 20
- 230000016615 flocculation Effects 0.000 claims description 20
- 238000004659 sterilization and disinfection Methods 0.000 claims description 9
- 238000010564 aerobic fermentation Methods 0.000 claims description 8
- 230000001954 sterilising effect Effects 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000005273 aeration Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000006148 magnetic separator Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000002000 scavenging effect Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 abstract description 27
- 238000005406 washing Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 abstract 2
- 239000012459 cleaning agent Substances 0.000 abstract 1
- 230000001351 cycling effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 25
- 230000008569 process Effects 0.000 description 19
- 238000005516 engineering process Methods 0.000 description 15
- 230000001112 coagulating effect Effects 0.000 description 9
- 239000000701 coagulant Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model discloses an efficient water treatment device. The efficient water treatment device comprises a submersible pump, a raw water tank, a pipeline mixer, a sludge tank, an agitator, a dense medium coagulation reaction tank, a blow-down pipe, a PAC (Poly Aluminium Chloride) adding pump, a PAC storing groove, a dense medium recovering system, a PAM (Polyacrylamide) adding pump, a PAM storing groove, a sludge pump, a sludge pipe, a disinfector and chemical cleaning agent adding device, a quick settling tank, a produced water or chemical washing pipeline, a film tank, a disinfector adding pipeline, an ultrafiltration membrane assembly, an aerating system, a cam pump, a produced water or chemical washing inner cycling pipeline, a clean water tank and a blow-off pipeline, wherein raw water is fed into the dense medium coagulation reaction tank and then enters the quick settling tank, the residual sludge at the bottom part of the settling tank is transferred to the dense medium recovering device, and the recovered dense medium is fed again into the reactor to be recycled; and water from the quick settling tank is fed into the film tank to be filtered and then transferred into the clean water tank to be disinfected. The efficient water treatment device has the characteristics that the land use area and construction cost are saved, the produced water is high in quality, the operation is stable and efficient, the dense medium can be recycled, and thus high economy is brought.
Description
Technical field
The utility model relates to water-treatment technology field, relates in particular to a kind of efficient water treatment device, also relates to a kind of this device that adopts and carries out water treatment device.
Background technology
In the enlarging of municipal water facilities with carry in mark transformation process, there are two problems to merit attention: the restriction of (1) day by day valuable urban land to new enlarging facilities land; (2) space constraint of old water factory to renovation technique.These problems make us in the time of the water quality requirement of the water-supply quantity in the face of growing and raising day by day, in the urgent need to adopting new and effective water technology.
The tradition coagulation-settlement process residence time is grown (1-1.5h), floor space is large, becomes gradually the limiting factor of water technology development.Dense medium coagulation-settlement process, owing to having added returnability dense medium at coagulation process, obviously increases flco density, thereby can accomplish rapid subsidence (10-15min).Especially, this technique has highly stable efficient place to go effect to suspended particulate, and its effluent quality is significantly better than traditional coagulation-settlement process.But as the effluent quality of traditional technology can not be up to standard, the water outlet of dense medium coagulation-settlement process can't be up to standard in the index such as microorganism, intestinal bacteria.As a kind of terminal guarantee water quality and raising means, ultrafiltration (aperture 10-1000 dust) membrane separation technique is because of its less energy-consumption, facility compact and the high rejection to suspended particulate, bacterium, in 30 years, be widely used in water treatment field (R.H.Peiris in the past, M.Jaklewicz, H.Budman, etal. Water Research, 2013,47:3364-3374).Put forward in old water factory the space constraints running in mark transformation process for ultra-filtration membrane, the patentee has developed a kind of " the short flow process water technology taking ultra-filtration membrane as the multiple water purification technology of core set in one " (ZL 200810242550) early stage.Along with going deep into of work, dense medium coagulating sedimentation is combined with the advantage of ultrafiltration technology, develop a kind of brand-new water technology and met preferably undoubtedly current industry and national development demand.
Utility model content
It is little that the technical problems to be solved in the utility model is to provide a kind of floor space, the efficient water treatment device that water treatment efficiency is high.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of efficient water treatment device, comprise water inlet system, dense medium coagulation system, sterilization cleaning system and blowdown apparatus, its innovative point is: also comprise ultrafiltration system, described ultrafiltration system comprises membrane cisterna, hyperfiltration membrane assembly, aerating system, lobe pump, clean water basin, product water or matting internal recycle pipeline; Described membrane cisterna is connected with dense medium coagulation system; In described membrane cisterna, hyperfiltration membrane assembly is set, membrane cisterna bottom is provided with the wash water valve being connected with blowdown apparatus; Described membrane cisterna bottom also arranges aeration tube and is connected with aerating system; The top of described membrane cisterna connects clean water basin by lobe pump, and described membrane cisterna also connects product water or matting pipeline, produces water or matting internal recycle pipeline;
Described water inlet system comprises submersible pump, former pond, line mixer; In described former pond, submersible pump is set, submersible pump is connected with the water inlet of dense medium coagulation reaction tank by line mixer; Described water inlet system also comprises PAC storage tank and PAC dosing pump, and PAC storage tank is by PAC dosing pump connecting tube mixing tank;
Described dense medium flocculation system comprises dense medium coagulation reaction tank, dense medium retrieving arrangement, sludge pump, sludge pipe and rapid sedimentation tank; The water inlet of described dense medium coagulation reaction tank is connected with water inlet system, and water outlet is connected with rapid sedimentation tank; The mud mouth of described rapid sedimentation tank lower end connects sludge pipe, and sludge pipe connects dense medium retrieving arrangement by sludge pump; Dense medium retrieving arrangement connects dense medium coagulation reaction tank;
Described sterilization cleaning system comprises that sterilizing agent and chemical throwing device and sterilizing agent add pipeline; Sterilizing agent and chemical throwing device are connected with settling tank, clean water basin and membrane cisterna by the corresponding pipeline that adds;
Described blowdown apparatus comprises blow-off line and sludge sump; One end of described blow-off line connects respectively dense medium coagulation reaction tank, dense medium retrieving arrangement, rapid sedimentation tank and membrane cisterna, and the other end connects sludge sump.
Further, described dense medium coagulation reaction tank is provided with rapidly miscible pool, dense medium flocculation basin and three ponds of aerobic fermentation tank, in each pond, is provided with agitator, and bottom, each pond is provided with blow-down pipe; Described rapidly miscible pool, dense medium flocculation basin and aerobic fermentation tank set gradually according to water (flow) direction afterwards in the past; Described dense medium flocculation system also comprises PAM storage tank and PAM dosing pump, and described PAM storage tank is by PAM dosing pump and dense medium coagulation reaction tank.
Further, described dense medium retrieving arrangement mainly by high speed cracking flossing machine, hydrocyclone or/and magnetic separator form.
Further, described rapid sedimentation tank is individual layer swash plate or individual layer inclined tube or double-deck swash plate or two-layer sloped tube evaporator.
Further, also visual water quality treatment and scale arrange mud scraper or suction dredger to described rapid sedimentation tank.
Further, the clear agent throwing device of described sterilizing agent and chemistry comprises sterilizing agent storage tank, sour scavenging solution storage tank, alkaline cleaner storage tank and corresponding dosing pump, valve and pipeline.
Further, the gas distribution of described aerating system adopts perforated tube.
The beneficial effects of the utility model:
1, the utility model equipment is few, and volume is little, compact construction, can greatly save the area.
2, adopt this to use the stability of novel equipment water treatment effect stronger, face seasonal change of water quality and Sudden Pollution Accident and can accomplish fast processing, alleviate the fear that supplies water and bring.
3, adopt equipment of the present utility model can reduce flocculant dosage, can reduce Al in water
3+, Fe
3+residual, save reagent cost.
4, set up ultrafiltration system, ultrafiltration is pure physical process, bacterium, colibacillary efficient removal is meaned to the reduction of sterilizing agent dosage, thereby the disinfection byproduct (DBP) in water (DBP) reduces, and contributes to water quality to improve.
Increase dense medium retrieving arrangement, dense medium reusable edible, continous-stable efficiently moves, and economy is good.
Brief description of the drawings
Fig. 1 is process flow diagram of the present utility model;
Fig. 2 is that dense medium dosage of the present utility model is to coagulation-settlement process delivery turbidity and COD
mnimpact (the PAC:10 mg/L of clearance; PAM:0.1 mg/L);
Fig. 3 is that PAC dosage of the present utility model is to coagulation-settlement process delivery turbidity and COD
mnimpact (the dense medium: 100mg/L of clearance; PAM:0.1 mg/L);
Fig. 4 is that PAM dosage of the present utility model is to coagulation-settlement process delivery turbidity and COD
mnimpact (the dense medium: 100mg/L of clearance; PAC:10 mg/L);
Fig. 5 is different coagulant aids type of the present utility model (0.1mg/L) impact on NTMP under low consumption;
Fig. 6 is different coagulant aids type of the present utility model (1mg/L) impact on NTMP under higher dosage.
Fig. 7 is the variation of transmembrane pressure of the present utility model (TMP) with working time.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is elaborated.
With reference to Fig. 1, a kind of efficient water treatment device, by water inlet system, dense medium coagulation system, ultrafiltration system, sterilization cleaning system and blowdown apparatus composition, comprise submersible pump 1, former pond 2, line mixer 3, sludge sump 4, stirrer 5, dense medium coagulation reaction tank 6, blow-down pipe 7, PAC dosing pump 8, PAC storage tank 9, dense medium recovery system 10, PAM dosing pump 11, PAM storage tank 12, sludge pump 13, sludge pipe 14, sterilizing agent and chemical throwing device 15, rapid sedimentation tank 16, produce water or matting pipeline 17, membrane cisterna 18, sterilizing agent adds pipeline 19, hyperfiltration membrane assembly 20, aerating system 21, lobe pump 22, produce water or matting internal recycle pipeline 23, clean water basin 24 and blow-off line 25.
Water inlet system comprises submersible pump 1, former pond 2, line mixer 3; The interior submersible pump 1 that arranges in former pond 2, submersible pump 1 is connected with the water inlet of dense medium coagulation reaction tank 6 by line mixer 3; Water inlet system also comprises PAC storage tank 9 and PAC dosing pump 8, and PAC storage tank 9 is by PAC dosing pump 8 connecting tube mixing tanks 3;
Dense medium flocculation system comprises dense medium coagulation reaction tank 6, dense medium retrieving arrangement 10, sludge pump 13, sludge pipe 14 and rapid sedimentation tank 16; The water inlet of dense medium coagulation reaction tank 6 is connected with water inlet system, and water outlet is connected with rapid sedimentation tank 16; The mud mouth of rapid sedimentation tank 16 lower ends connects sludge pipe 14, and sludge pipe 14 connects dense medium retrieving arrangement 10 by sludge pump 13; Dense medium retrieving arrangement 10 connects dense medium coagulation reaction tank 6; Dense medium coagulation reaction tank 6 is provided with rapidly miscible pool, dense medium flocculation basin and three ponds of aerobic fermentation tank, is provided with agitator 5 in each pond, and bottom, each pond is provided with blow-down pipe 7; Rapidly miscible pool, dense medium flocculation basin and aerobic fermentation tank set gradually according to water (flow) direction afterwards in the past; Dense medium flocculation system also comprises PAM storage tank 12 and PAM dosing pump 11, and PAM storage tank 12 is connected with dense medium coagulation reaction tank 6 by PAM dosing pump 11.Dense medium retrieving arrangement 10 mainly by high speed cracking flossing machine, hydrocyclone or/and magnetic separator form.
Ultrafiltration system comprises membrane cisterna 18, hyperfiltration membrane assembly 20, aerating system 21, lobe pump 22, clean water basin 24; Membrane cisterna 18 is connected with dense medium coagulation system; The interior hyperfiltration membrane assembly 20 that arranges of membrane cisterna 18, membrane cisterna 18 bottoms are provided with the wash water valve being connected with blowdown apparatus; Membrane cisterna 18 bottoms also arrange aeration tube and are connected with aerating system 21; The top of membrane cisterna 18 connects clean water basin 24 by lobe pump 22, and membrane cisterna 18 also connects product water or matting pipeline 17, produces water or matting internal recycle pipeline 23.
Sterilization cleaning system comprises that sterilizing agent and chemical throwing device 15 and sterilizing agent add pipeline 19; Sterilizing agent and chemical throwing device 15 add pipeline 19 by sterilizing agent and are connected with clean water basin 24, rapid sedimentation tank 16 and membrane cisterna 18 with product water or matting pipeline 17; The clear agent throwing device 15 of sterilizing agent and chemistry comprises sterilizing agent storage tank 151, sour scavenging solution storage tank 152, alkaline cleaner storage tank 153 and corresponding dosing pump, valve and pipeline.
Described blowdown apparatus comprises blow-off line 25 and sludge sump 4; One end of blow-off line 25 connects respectively dense medium coagulation reaction tank 6, dense medium retrieving arrangement 10, rapid sedimentation tank 16 and membrane cisterna 18, and the other end connects sludge sump 4.
The step that adopts efficient water treatment device to process water is:
(1) water inlet operation: the source water in former pond 2 is pumped in dense medium coagulation reaction tank 6 through submersible pump 1, and therebetween, the PAC in PAC storage tank 9 mixes with former water in line mixer 3 by dosing pump, and PAC adds by the concentration of 5-25 mg/L;
(2) dense medium coagulating sedimentation operation: former water carries out successively short mix step, dense medium flocculation step and maturation stage in dense medium coagulation reaction tank 6 under agitation condition, the stirring velocity of described short mix step is 250-300 r/min, the stirring velocity of described dense medium flocculation step is 100-200 r/min, the stirring velocity of described maturation stage is 50-100 r/min, in maturing process, add PAM, add by the concentration of 0.2-1mg/L, after slaking, enter rapid sedimentation tank 16; The mud of dense medium coagulation reaction tank 6 bottoms enters sludge sump 4 through blow-off line 25; The mud of rapid sedimentation tank 16 bottoms pumps into dense medium retrieving arrangement 10 by sludge pump 13 and reclaims dense medium, and the dense medium after recovery reenters in reactor by pipeline, forms circulation, and mud enters sludge sump 4 by blow-off line 25;
(3) ultrafiltration operation: the supernatant liquor of rapid sedimentation tank 16 enters membrane cisterna 18, filters through the hyperfiltration membrane assembly 20 in membrane cisterna 18, produces water enter clean water basin 24 by lobe pump 22, in ultra-filtration process, carries out air purge by aerating system 21; Membrane cisterna 18 bottom mud enter sewage lagoon 4 through blow-off line 25;
(4) sterilization matting: sterilizing agent and chemical throwing device 10 carry out disinfection and clean processed water and membrane module.
Wherein, dense medium powder density is between 3-5 g/cm
3, granular size is 200-400 order, its main component is Fe
3o
4, Fe
3o
4content is greater than 60%; During for THE LOWER YANGTZE VALLEY source water, flocculation agent PAC dosage is 0-25 mg/L; The polymer coagulant aids that dense medium coagulating sedimentation uses is the moon/sun/non-ionic polyacrylamide, and consumption is 0-1 mg/L; Rapid sedimentation tank 16 can be individual layer swash plate (or inclined tube) or double-deck swash plate (or inclined tube) settling tank, depending on influent quality and treatment scale also can set up scrape, suction dredger.
As embodiment of the present utility model, the gas distribution of aerating system 21 adopts perforated tube.
As embodiment of the present utility model, sterilizing agent dosing system can add liquid chlorine or ozone, if in source water microorganism or algae more, before also can carrying out in rapid sedimentation tank 16, add.
As embodiment of the present utility model, carry out blowdown in autogenous heavy media coagulation reaction tank 6, dense medium retrieving arrangement 10, rapid sedimentation tank 16 and membrane cisterna 18 and include in and in blow-off line 25, enter sludge sump 4.
For ease of the utility model is further understood, describe below by embodiment.
embodiment 1
In service in described water technology, if the dense medium coagulating sedimentation stage is added excessive magnetic, PAC and PAM, not only can cause running cost to increase, also can increase the weight of film and pollute.The dosage of magnetic, PAC and PAM also there are differences because source quality is different.Here with THE LOWER YANGTZE VALLEY section water intaking (raw water turbidity: 50-100 NTU, COD
mn: 2-4 mg/L) be example, as shown in Figure 2, Figure 3 and Figure 4, magnetic, PAC and the PAM dosage in dense medium coagulating sedimentation stage (process residence time 10min) are respectively 100 mg/L, 10 mg/L(with liquid polymeric AlCl
3meter, ρ=1.24g/ml) and 0.1 mg/L comparatively suitable, now, the about 99%(of turbidity removal rate of dense medium coagulating sedimentation water outlet can be lower than 1 NTU), while COD
mnthe about 40%(of clearance is about 1.2-2.4 mg/L).Although increase magnetic and PAM all to turbidity and COD
mnthere is further reduction, but very limited.In addition, excessive if PAC adds, also may cause producing water turbidity and rise.It is worth mentioning that, if use conventional flocculation sediment process, the dosage of PAC need reach 20 mg/L, and the residence time is 1.5h left and right, and its delivery turbidity is about 3NTU only, and this has embodied the saving of dense medium coagulating sedimentation on adding of agent.
embodiment 2
The impact that uses polymer coagulant aids kind and dosage to pollute film for investigating described water technology, here three kinds of common polymeric flocculants have been selected: cationic-type polyacrylamide (CPAM), non-ionic polyacrylamide (PAM) and anion-polyacrylamide (APAM).Dense medium and flocculation agent gather aluminium (PAC) dosage and adopt the preferred dosage in embodiment 1, are respectively 100mg/L and 10mg/L.Membrane flux operating flux is 20 Lm
-2h
-1, be 24h working time.Because of the polymer coagulant aids kind zero dimension transmembrane pressures that cause different from dosage (NTMP=△ P/ △ P
0) change as shown in Figure 5 and Figure 6: compared with only adding PAC, after CPAM adds, contribute to reduce film and pollute, and APAM can increase film pollution on the contrary after adding.For PAM, when dosage is 0.1mg/L, can reduce film and pollute, but dosage is while being 1mg/L, film pollutes significantly and rises.Preferably, should select CPAM as polymeric flocculant in described technique, dosage is 0.1mg/L, and should reduce as far as possible dosage.
For investigating continuous operation film pollution situation, it is CPAM that coagulant aids is selected in test, and dosage is 0.1mg/L, and PAC and dense medium dosage are respectively 10mg/L and 100mg/L.Film operating flux is 20 Lm
-2h
-1, each cycle is 40min.Backwash mode is air water backwash, and washing intensity is 50Lm
-2h
-1, air purge intensity is 50m
3/ (m
2mo Chi ﹒ h), each 60s.In 30 days run durations, as shown in Figure 7, the average daily growth of transmembrane pressure (TMP) is only 0.1 kPa left and right, and TMP can be stabilized in 8.5kPa left and right substantially in the operation later stage, and this can meet the needs of actual production completely.
Table 1: the crucial effluent quality index of dense medium coagulating sedimentation/ultrafiltration water technology
For investigating the effluent quality of described water technology, adopt following operational conditions: CPAM, PAC and dense medium dosage to be respectively 0.1mg/L, 10mg/L and 100mg/L.Film operating flux is 20 Lm
-2h
-1, be 40min working time.Backwash mode is air water backwash, and washing intensity is 50Lm
-2h
-1, air purge intensity is 50m
3/ (m
2mo Chi ﹒ h), each 60s.As shown in table 1, dense medium coagulating sedimentation/uf processing technique is to NTU and COD
mnclearance reach respectively more than 99% and 45% left and right; Because raw water quality is better, not obvious to the removal effect of total phosphorus and ammonia nitrogen here; Can reach 100% to the clearance of total coli group and total number of bacterial colony, in water outlet, not detect, this has highlighted the superiority of ultra-filtration membrane technique.Generally, the key index of water outlet can meet national hygiene standard for drinking water (GB5749-2006) completely.Because dense medium coagulation process has very strong impact resistance to turbidity, to raw water turbidity, within the scope of 10-423 NTU, temperature is within the scope of 1-30 DEG C, and its water outlet all can be stablized and reach below 2NTU, this provides stable former water for ultrafiltration technology, thereby the stability of whole system improves greatly.In addition, to the processing of micro-polluted source water also within the process range of this technique.
The utility model is illustrated by above-described embodiment, but should be understood that, above-described embodiment is the object for giving an example and illustrating just, but not is intended to the utility model to be limited in described scope of embodiments.In addition it will be understood by those skilled in the art that; the utility model is not limited to above-described embodiment; can also make more kinds of variants and modifications according to instruction of the present utility model, these variants and modifications all drop in the utility model scope required for protection.Protection domain of the present utility model is defined by the appended claims and equivalent scope thereof.
Claims (8)
1. an efficient water treatment device, comprise water inlet system, dense medium coagulation system, sterilization cleaning system and blowdown apparatus, it is characterized in that: also comprise ultrafiltration system, described ultrafiltration system comprises membrane cisterna, hyperfiltration membrane assembly, aerating system, lobe pump, clean water basin, product water or matting internal recycle pipeline; Described membrane cisterna is connected with dense medium coagulation system; In described membrane cisterna, hyperfiltration membrane assembly is set, membrane cisterna bottom is provided with the wash water valve being connected with blowdown apparatus; Described membrane cisterna bottom also arranges aeration tube and is connected with aerating system; The top of described membrane cisterna connects clean water basin by lobe pump, and described membrane cisterna also connects product water or matting pipeline, produces water or matting internal recycle pipeline;
Described water inlet system comprises submersible pump, former pond, line mixer; In described former pond, submersible pump is set, submersible pump is connected with the water inlet of dense medium coagulation reaction tank by line mixer; Described water inlet system also comprises PAC storage tank and PAC dosing pump, and PAC storage tank is by PAC dosing pump connecting tube mixing tank.
2. a kind of efficient water treatment device according to claim 1, described dense medium flocculation system comprises dense medium coagulation reaction tank, dense medium retrieving arrangement, sludge pump, sludge pipe and rapid sedimentation tank; The water inlet of described dense medium coagulation reaction tank is connected with water inlet system, and water outlet is connected with rapid sedimentation tank; The mud mouth of described rapid sedimentation tank lower end connects sludge pipe, and sludge pipe connects dense medium retrieving arrangement by sludge pump; Dense medium retrieving arrangement connects dense medium coagulation reaction tank; Dense medium coagulation reaction tank is provided with rapidly miscible pool, dense medium flocculation basin and three ponds of aerobic fermentation tank, in each pond, is provided with agitator, and bottom, each pond is provided with blow-down pipe; Described rapidly miscible pool, dense medium flocculation basin and aerobic fermentation tank set gradually according to water (flow) direction afterwards in the past; Described dense medium flocculation system also comprises PAM storage tank and PAM dosing pump, and described PAM storage tank is connected with dense medium coagulation reaction tank by PAM dosing pump;
Described sterilization cleaning system comprises that sterilizing agent and chemical throwing device and sterilizing agent add pipeline; Sterilizing agent and chemical throwing device are connected with settling tank, clean water basin and membrane cisterna by the corresponding pipeline that adds;
Described blowdown apparatus comprises blow-off line and sludge sump; One end of described blow-off line connects respectively dense medium coagulation reaction tank, dense medium retrieving arrangement, rapid sedimentation tank and membrane cisterna, and the other end connects sludge sump.
3. a kind of efficient water treatment device according to claim 1, it is characterized in that: described dense medium coagulation reaction tank is provided with rapidly miscible pool, dense medium flocculation basin and three ponds of aerobic fermentation tank, in each pond, be provided with agitator, bottom, each pond is provided with blow-down pipe; Described rapidly miscible pool, dense medium flocculation basin and aerobic fermentation tank set gradually according to water (flow) direction afterwards in the past; Described dense medium flocculation system also comprises PAM storage tank and PAM dosing pump, and described PAM storage tank is connected with dense medium coagulation reaction tank by PAM dosing pump.
4. a kind of efficient water treatment device according to claim 1 and 2, is characterized in that: described dense medium retrieving arrangement mainly by high speed cracking flossing machine, hydrocyclone or/and magnetic separator form.
5. a kind of efficient water treatment device according to claim 2, is characterized in that: described rapid sedimentation tank is individual layer swash plate or individual layer inclined tube or double-deck swash plate or two-layer sloped tube evaporator.
6. a kind of efficient water treatment device according to claim 2, is characterized in that: described rapid sedimentation tank also visual water quality treatment and scale arranges mud scraper or suction dredger.
7. a kind of efficient water treatment device according to claim 2, is characterized in that: described sterilizing agent and chemical throwing device comprise sterilizing agent storage tank, sour scavenging solution storage tank, alkaline cleaner storage tank and corresponding dosing pump, valve and pipeline.
8. a kind of efficient water treatment device according to claim 1, is characterized in that: the gas distribution of described aerating system adopts perforated tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420045912.6U CN203794712U (en) | 2014-01-24 | 2014-01-24 | Efficient water treatment device |
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| CN201420045912.6U CN203794712U (en) | 2014-01-24 | 2014-01-24 | Efficient water treatment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739124A (en) * | 2014-01-24 | 2014-04-23 | 太平洋水处理工程有限公司 | Efficient water treatment device and water treatment method |
| CN114684897A (en) * | 2022-04-28 | 2022-07-01 | 华能陇东能源有限责任公司 | High-efficient separation of magnetism dense medium is retrieved and automatic dosing system |
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2014
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739124A (en) * | 2014-01-24 | 2014-04-23 | 太平洋水处理工程有限公司 | Efficient water treatment device and water treatment method |
| CN103739124B (en) * | 2014-01-24 | 2015-12-09 | 太平洋水处理工程有限公司 | A kind of efficient water treatment device and water treatment method |
| CN114684897A (en) * | 2022-04-28 | 2022-07-01 | 华能陇东能源有限责任公司 | High-efficient separation of magnetism dense medium is retrieved and automatic dosing system |
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