CN201785288U - Treatment system for treating inferior V-class surface water into domestic drinking water - Google Patents
Treatment system for treating inferior V-class surface water into domestic drinking water Download PDFInfo
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- CN201785288U CN201785288U CN2010202495449U CN201020249544U CN201785288U CN 201785288 U CN201785288 U CN 201785288U CN 2010202495449 U CN2010202495449 U CN 2010202495449U CN 201020249544 U CN201020249544 U CN 201020249544U CN 201785288 U CN201785288 U CN 201785288U
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Abstract
The utility model discloses a treatment system for treating inferior V-class surface water into domestic drinking water, which belongs to the field of water treatment and comprises a biological aerated filter, a high-speed clarifier, a blast system, an ultra-filtration membrane unit, a chemical feeding system and a contact disinfecting tank. Water and gas are distributed at the bottom of the biological aerated filter for primarily removing organic pollutants, SS and inorganic substances such as ammonia nitrogen, nitrate, nitrite, ferrum, manganese and the like in the water. Outlet water from the filter enters the high-speed clarifier, and coagulant and coagulant aids are fed into the high-speed clarifier to remove suspended matters, chroma, phosphorus and partial organic matters. Outlet water from the clarifier enters the ultra-filtration membrane unit, and suspended substances, colloid and bacteria can be effectively removed by the aid of an immersed hollow fiber membrane component. Outlet water from the ultra-filtration membrane unit enters the contact disinfecting tank, ozone is fed into the contact disinfecting tank for disinfecting, and outlet water from the contact disinfecting tank enters a water supply pipe network. The system is capable of treating currently inferior V-class surface water into domestic drinking water, and is of great importance as I-class, II-class and III-class surface water capable of serving as tap water sources in China is gradually decreased.
Description
Technical field
The utility model relates to water-treatment technology field, particularly relates to a kind of treatment system that bad V class surface water is treated to Drinking Water.
Background technology
At present, China's surface water pollution is general, and the section organic contamination in the city of particularly flowing through is more serious, and the lake eutrophication problem is outstanding, and satisfied conduct I, II, the III class earth surface water source of source water from the beginning reduces day by day; The surface water that a lot of city water factories can utilize often is IV, V class surface water or even the worse surface water of water quality.The tap water treatment process of conventional " dosing coagulation-precipitation-filtration-sterilization ", its process object mainly is suspended substance and a colloidal impurity in the water, simultaneously some organism, bacterium and virus etc. in the water is had certain removal effect.Yet the organism that this existing treatment process is removed is mainly molecular weight greater than 10000 part, and is very little to the removal effect of low-molecular-weight organic matter.For with serious pollution surface water, adopt above-mentioned conventional water purification treatment technology to handle the back water outlet and can't reach drinking water standard.
The utility model content
Based on the existing in prior technology problem, the purpose of the utility model embodiment provides and a kind of bad V class surface water is treated to the treatment system of Drinking Water, reach drinking water standard after can bad V class surface water handling.
The purpose of this utility model is achieved through the following technical solutions:
The utility model embodiment provides a kind of bad V class surface water is treated to the treatment system of Drinking Water, comprising:
BAF, high speed settling pond, air-blast system, ultra-filtration membrane unit, medicine system and disinfecting tank;
Described BAF is connected with disinfecting tank in turn with high speed settling pond, ultra-filtration membrane unit; Wherein, the water-in of BAF is as introducing the bad V class surface-water inlet of handling; The water outlet of described disinfecting tank is as the water outlet of the water up to standard after handling;
The wind-force delivery port of described air-blast system is connected to the blast inlet of described BAF; The dosing mouth of described medicine system is connected to the dispensing mouth of described high speed settling pond; The ozone delivery port of described medicine system is connected in the described disinfecting tank.
The technical scheme that provides by above-mentioned the utility model embodiment as can be seen, pass through BAF among the utility model embodiment, the high speed settling pond, the ultra-filtration membrane unit, disinfecting tank and air-blast system and the organic treatment system that forms bad V class surface water processing that cooperates of medicine system, make the water outlet after the processing reach drinking water standard, this treatment system has following advantage: (1) BAF is collection bio-contact oxidation and filtering biochemical treatment unit, to organism in the surface water, suspended substances etc. are done tentatively and are removed, and have guaranteed the unitary influent quality of subsequent processes; (2) BAF is converted into ammonia nitrogen with organonitrogen, and then ammonia nitrogen is converted into nitric nitrogen, guarantees water outlet ammonia nitrogen index; (3) the high speed settling pond is as mixing, flocculation, precipitation unit, and compact construction is saved and taken up an area of and investment, at the bottom of the running cost, effect stability, and as the unitary pretreatment unit of ultra-filtration membrane, can alleviate the dirty stifled degree of film, prolong the cleaning interval of film, reduce the turnover rate of film; (4) the ultra-filtration membrane unit guarantees that the COD content of water outlet is up to standard, bacterium, virus, Cryptosporidium and giardia lamblia had clearance more than the 4log, reduce the dosage of sterilizing agent, reduce the sterilization expense, can make water outlet satisfy " drinking water sanitary standard " (GB 5749-2006) index request.This treatment system technical process is short, but the blocking design, processing cost is low, and the efficient height can be realized automatization control easily.
Description of drawings
The structural representation of the treatment system that Fig. 1 provides for the utility model embodiment;
The BAF structural representation of the treatment system that Fig. 2 provides for the utility model embodiment;
The high speed settling pond structural representation of the treatment system that Fig. 3 provides for the utility model embodiment;
The process flow sheet that Fig. 4 handles bad V class surface water for the treatment system that the utility model embodiment provides.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Embodiment
Present embodiment provides a kind of bad V class surface water is treated to the treatment system of Drinking Water, is the water treatment system that bioremediation, physical chemistry method are combined with embrane method, and as shown in Figure 1, this system comprises:
BAF 1, high speed settling pond 2, air-blast system 5, ultra-filtration membrane unit 3, medicine system 6 and disinfecting tank 4;
Wherein, described BAF 1 is connected in turn with high speed settling pond 2, ultra-filtration membrane unit 3 and disinfecting tank 4; Wherein, the water-in of BAF 1 is as introducing the bad V class surface-water inlet A that handles; The water outlet D of described disinfecting tank is as the water outlet of the water up to standard after handling;
The wind-force delivery port of described air-blast system 5 is connected to the blast inlet of described BAF 1; The dosing mouth of described medicine system 6 is connected to (comprising coagulating agent dosing mouth E and coagulant aids dosing mouth F) the dispensing mouth of described high speed settling pond 2; The ozone delivery port C of described medicine system 6 is connected in the described disinfecting tank 4.
As shown in Figure 2, BAF 1 in the above-mentioned treatment system is provided with pond body 21, the distributing water room 22 that body 21 bottoms in pond are provided with, described distributing water room 22 is provided with supporting layer 23, be provided with the filter material layer 24 that ceramic grain filter constitutes in the pond body 21 on the described supporting layer 23, the space also is provided with filter as the clear water storage zone in the pond on the filter material layer 24 on the filter plate between distributing water room and the supporting layer, this filter can adopt long handle not have the obstruction filter, thereby improves this BAF water distribution uniformity; And one-time-concreting is connected to form filter plate, filter beam mode of connection uniquely in the time of can be with the construction of filter beam, filter plate, can effectively avoid filter plate, filter beam to be sheared destruction.
As shown in Figure 3, the high speed settling pond 3 in the above-mentioned treatment system comprises: line mixer 31, rapid reaction zone 32, plug-flow reaction zone 33, settling section 34 and inclined tube disengaging zone 35; Wherein, line mixer 31 is connected with the dosing pipe of medicine system, mainly be connected with the coagulating agent dosing mouth E of medicine system, the outlet of line mixer 31 is connected with rapid reaction zone 32 successively, plug-flow reaction zone 33 is connected with settling section 34, described settling section 34 tops are provided with inclined tube disengaging zone 35, and rapid reaction zone 32 is connected with the coagulant aids dosing mouth F of medicine system 6.This high speed settling pond major advantage is: adopts line mixer to replace mixing pit, reduces to take up an area of and investment, and, in rapid reaction zone, flash mixer can be set, and can reach optimization design to the angle adjustment of the impeller of the flash mixer that is provided with, and improve effect, cut down the consumption of energy.
Ultra-filtration membrane unit 3 in the above-mentioned treatment system adopts the polysulfone hollow fiber ultrafiltration membrane system of immersion, and membrane pore size is 0.02～0.05 μ m; Membrane flux is 29.0L/m
2H.This ultra-filtration membrane unit major advantage by adopting the suitable membrane aperture, keeps higher membrane flux, and it is dirty stifled to reduce film, prolongs the cleaning interval.
Air-blast system 5 in the above-mentioned treatment system is connected and composed by frequency conversion type Root's blower and airduct pipeline, and air-blast system is mainly used in to BAF, ultra-filtration membrane unit technology gas is provided.
Medicine system 6 in the above-mentioned treatment system is by being provided with dosing pipe on the molten medicine-chest, and dosing pipe is provided with dosing pump and constitutes.Be mainly used in and add coagulating agent (polymerize aluminum chloride PAC) and coagulant aids (polyacrylamide PAM); In the reality, medicine system can be divided into two dosing subsystems, and each dosing subsystem all can be by being provided with dosing pipe on the molten medicine-chest, and dosing pipe is provided with dosing pump and constitutes, a dosing subsystem is used to add coagulating agent, and another dosing subsystem is used to add coagulant aids.
Be provided with ultrafiltration between ultra-filtration membrane unit in the above-mentioned treatment system and the disinfecting tank and go out water pump, the unitary water outlet of ultra-filtration membrane is pumped into disinfecting tank by the ultrafiltration water outlet.
Disinfecting tank in the above-mentioned treatment system is to be used to pond that ozone is contacted with water.
During this treatment system work, as shown in Figure 4, the bad V class surface water of handling is entered BAF, (microorganism can be the microorganism that active sludge that initial operating stage adds contains for the ceramic grain filter of the water distribution of BAF inner bottom part, distribution and setting and microorganism, this microorganism can utilize the organic pollutant in the water to breed afterwards) to institute's treating water effect, inorganicss such as organic pollutant in the preliminary removal water and SS and ammonia nitrogen, nitrate, nitrite, iron, manganese, hydraulic detention time is 0.35～0.8 hour;
At BAF bottom water and air distributing, the water distribution of BAF bottom, the gas-water ratio of distribution are 2, and the employing specific surface is 40000cm
2/ g, intragranular pore rate are 30% ceramic grain filter; Under the situation of, biodegradability difference on the low side at the organic contamination substrate concentration, BAF is tentatively removed inorganicss such as the organic pollutant in the water, SS and ammonia nitrogen, nitrate, nitrite, iron, manganese by the vital movement of microorganism, alleviates the unitary load of subsequent processes;
The water outlet of described BAF enters the high speed settling pond, in the high speed settling pond, add polymerize aluminum chloride as flocculation agent, add PAM as coagulant aids, institute's treating water is mixed successively, after the flocculation, precipitation, mud concentration, removes suspended substance, colourity, phosphorus and partial organic substances in the water; Wherein, the dosage as the polymerize aluminum chloride of flocculation agent is 8～50mg/L; Dosage as the PAM of coagulant aids is 0.05～2mg/L;
The high speed settling pond is the compact construction that integrates functions such as mixing, flocculation, precipitation, mud concentrate, the processing structures of effect stability, by adding a certain amount of coagulating agent and coagulant aids, can remove suspended substance, colourity, phosphorus and partial organic substances effectively, effluent quality is good, effect stability.Efficient sedimentation tank can alleviate the dirty stifled degree of film as the pretreatment unit of ultrafiltration, prolongs the cleaning interval of film, reduces the turnover rate of film, reduces working cost; By the optimization to the operating parameter of high speed settling tank, the dosage that effectively reduces medicament is more than 50%.
The water outlet of high speed settling pond enters the ultra-filtration membrane unit, remove aqueous suspension, colloid and bacterium by ultrafiltration, and remove the organism that molecular weight is not less than 100000 larger molecular weight, make the COD content of water outlet up to standard, bacterium, virus, Cryptosporidium and giardia lamblia are reached clearance more than the 4log;
The unitary ultrafiltration of ultra-filtration membrane can be removed suspensoid, colloid, bacterium effectively, and the efficient height of deironing, manganese; Can remove simultaneously the organism of larger molecular weight.The ultra-filtration membrane unit can adopt the immersion hollow fiber film assembly, and membrane pore size is 0.02～0.05 μ m, and the design membrane flux is: 29.0L/m
2H;
Water outlet enters disinfecting tank after the ultrafiltration of ultra-filtration membrane unit, in disinfecting tank, carry out disinfection by sterilizing agent and the adding ozone that adds, the dosage of ozone is generally 0.5～2mg/L, make water reach the drinking water sanitary standard index request, the water outlet after the sterilization enters water supply network as Drinking Water.
The treatment system of present embodiment has following advantage: (1) BAF is collection bio-contact oxidation and filtering biochemical treatment unit, organism, suspended substance etc. in the surface water is done tentatively removed, and has guaranteed the unitary influent quality of subsequent processes; (2) BAF is converted into ammonia nitrogen with organonitrogen, and then ammonia nitrogen is converted into nitric nitrogen, guarantees water outlet ammonia nitrogen index; (3) the high speed settling pond is as mixing, flocculation, precipitation unit, and compact construction is saved and taken up an area of and investment, at the bottom of the running cost, effect stability, and as the unitary pretreatment unit of ultra-filtration membrane, can alleviate the dirty stifled degree of film, prolong the cleaning interval of film, reduce the turnover rate of film; (4) the ultra-filtration membrane unit guarantees that the COD content of water outlet is up to standard, bacterium, virus, Cryptosporidium and giardia lamblia had clearance more than the 4log, reduce the dosage of sterilizing agent, reduce the sterilization expense, can make water outlet satisfy " drinking water sanitary standard " (GB 5749-2006) index request.This treatment system technical process is short, but the blocking design, processing cost is low, and the efficient height can be realized automatization control easily.
In sum, the utility model embodiment is by BAF, high speed settling pond, ultra-filtration membrane unit, disinfecting tank and air-blast system and the organic treatment system that forms bad V class surface water processing that cooperates of medicine system, makes the water outlet after the processing reach drinking water standard.It is short that this system has technical process, but the blocking design, processing cost is low, and the efficient height can be realized the advantage that automatization is controlled easily.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (7)
1. one kind is treated to the treatment system of Drinking Water with bad V class surface water, it is characterized in that, comprising:
BAF, high speed settling pond, air-blast system, ultra-filtration membrane unit, medicine system and disinfecting tank;
Described BAF is connected with disinfecting tank in turn with high speed settling pond, ultra-filtration membrane unit; Wherein, the water-in of BAF is as introducing the bad V class surface-water inlet of handling; The water outlet of described disinfecting tank is as the water outlet of the water up to standard after handling;
The wind-force delivery port of described air-blast system is connected to the blast inlet of described BAF; The dosing mouth of described medicine system is connected to the dispensing mouth of described high speed settling pond; The ozone delivery port of described medicine system is connected in the described disinfecting tank.
2. the treatment system that bad V class surface water is treated to Drinking Water as claimed in claim 1, it is characterized in that, described BAF is provided with the pond body, body bottom, pond is provided with distributing water room, described distributing water room is provided with supporting layer, is provided with the filter material layer that ceramic grain filter constitutes in the pond body on the described supporting layer.
3. as claimed in claim 1 bad V class surface water is treated to the treatment system of Drinking Water, it is characterized in that described high speed settling pond comprises: line mixer, rapid reaction zone, plug-flow reaction zone, settling section and inclined tube disengaging zone;
Described line mixer is connected with the dosing pipe of medicine system, and the outlet of line mixer is connected with rapid reaction zone successively, the plug-flow reaction zone is connected with settling section, and described settling section top is provided with the inclined tube disengaging zone.
4. as claimed in claim 1 bad V class surface water is treated to the treatment system of Drinking Water, it is characterized in that described ultra-filtration membrane unit adopts the polysulfone hollow fiber ultrafiltration membrane system of immersion, membrane pore size is 0.02～0.05 μ m; Membrane flux is 29.0L/m
2H.
5. as claimed in claim 1 bad V class surface water is treated to the treatment system of Drinking Water, it is characterized in that described air-blast system is connected and composed by frequency conversion type Root's blower and airduct pipeline.
6. as claimed in claim 1 bad V class surface water is treated to the treatment system of Drinking Water, it is characterized in that described medicine system is by being provided with dosing pipe on the molten medicine-chest, dosing pipe is provided with dosing pump and constitutes.
7. the treatment system that bad V class surface water is treated to Drinking Water as claimed in claim 1, it is characterized in that, be provided with ultrafiltration between described ultra-filtration membrane unit and the disinfecting tank and go out water pump, the unitary water outlet of ultra-filtration membrane is pumped into disinfecting tank by the ultrafiltration water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202495449U CN201785288U (en) | 2010-06-25 | 2010-06-25 | Treatment system for treating inferior V-class surface water into domestic drinking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202495449U CN201785288U (en) | 2010-06-25 | 2010-06-25 | Treatment system for treating inferior V-class surface water into domestic drinking water |
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| Publication Number | Publication Date |
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| CN201785288U true CN201785288U (en) | 2011-04-06 |
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| CN2010202495449U Expired - Lifetime CN201785288U (en) | 2010-06-25 | 2010-06-25 | Treatment system for treating inferior V-class surface water into domestic drinking water |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891337A (en) * | 2010-06-25 | 2010-11-24 | 北京伊普国际水务有限公司 | Treating system and method for treating surface water worse than Grade V into drinking water |
| CN102745861A (en) * | 2012-06-21 | 2012-10-24 | 陈昌敏 | Mobile water plant water treatment process and mobile water treatment system |
| CN103253748A (en) * | 2013-05-20 | 2013-08-21 | 厦门华净生物科技有限公司 | Aeration stirring sterilization device |
| CN112169390A (en) * | 2020-08-19 | 2021-01-05 | 浙江联池水务设备股份有限公司 | Construction method of integral gas distribution and water distribution filter beam plate |
| CN114031221A (en) * | 2021-12-03 | 2022-02-11 | 黄河勘测规划设计研究院有限公司 | Water treatment system and method for treating high-sand-content source water |
-
2010
- 2010-06-25 CN CN2010202495449U patent/CN201785288U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891337A (en) * | 2010-06-25 | 2010-11-24 | 北京伊普国际水务有限公司 | Treating system and method for treating surface water worse than Grade V into drinking water |
| CN101891337B (en) * | 2010-06-25 | 2012-09-05 | 北京伊普国际水务有限公司 | Treating system and method for treating surface water worse than Grade V into drinking water |
| CN102745861A (en) * | 2012-06-21 | 2012-10-24 | 陈昌敏 | Mobile water plant water treatment process and mobile water treatment system |
| CN103253748A (en) * | 2013-05-20 | 2013-08-21 | 厦门华净生物科技有限公司 | Aeration stirring sterilization device |
| CN112169390A (en) * | 2020-08-19 | 2021-01-05 | 浙江联池水务设备股份有限公司 | Construction method of integral gas distribution and water distribution filter beam plate |
| CN114031221A (en) * | 2021-12-03 | 2022-02-11 | 黄河勘测规划设计研究院有限公司 | Water treatment system and method for treating high-sand-content source water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110406 Effective date of abandoning: 20120905 |