CN103253787B - The low turbid algae concentrated feeding water strengthening and processing device of seasonal metallic pollution and technique thereof - Google Patents
The low turbid algae concentrated feeding water strengthening and processing device of seasonal metallic pollution and technique thereof Download PDFInfo
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- CN103253787B CN103253787B CN201210036197.5A CN201210036197A CN103253787B CN 103253787 B CN103253787 B CN 103253787B CN 201210036197 A CN201210036197 A CN 201210036197A CN 103253787 B CN103253787 B CN 103253787B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses the low turbid former water combination strengthening treatment process of a kind of seasonal metallic pollution, it is characterized in that, raw water quality by monitoring water quality Spot detection raw water quality monitoring point, aeration mixed pipe line in each valve and mixing pit and mixing and blending machine are controlled by management control center according to the raw water quality detected, it is achieved flow process switches. The advantage of this group technology is in that according to water quality practical situation, to adopt the abbreviated system of coagulating sedimentation+ultrafiltration when raw water quality is better, it is achieved the target of energy-saving run and simplification production management; When seasonal change of water quality, adopting a complete set of technological process, it is ensured that Drinking water quality, overall procedure embodies the motility of production run and the adaptability to change of water quality.
Description
Technical field
The present invention is that a kind of water related in water engineering processes combination reinforcement process, specifically a kind of low turbid algae concentrated feeding water strengthening and processing device being applied to seasonal metallic pollution and technique thereof, and summer short time metal ion low turbid for former water winter low temperature raises and high algae, adopts seasonality combination strengthening conventional treatment to realize the target of energy-efficient process.
Background technology
China's surface water water sources water quality differs greatly, the low turbid former water being wherein representative with lake and large reservoir, and production run, often along with seasonal variations presents larger difference, is caused certain puzzlement by its water quality. Low turbid period coagulating sedimentation weak effect, caused sedimentation tank delivery turbidity sometimes even above influent turbidity, increased the weight of the burden of filtering technique winter; Summer causes the materials such as the metal ion being enriched with in water bottom mud to precipitate out in water due to water temperature rising, and oxygen in water is relatively low, and sometimes also occurs with high algae situation. The change of raw water quality is prone to cause that effluent quality is unstable, and causing output water colourity, metal ion to exceed standard, algae breakthrough process technique enters clear-water reservoir and pipe network.
At present, low turbid algae concentrated feeding water for seasonal metallic pollution adopts generally conventional process technique as the waterworks of drinking water source, when winter turbidity less than 10NTU and temperature less than 5 DEG C, summer oxygen in water less than 7mg/l, iron ion more than 0.6mg/l, manganese ion more than 0.3mg/l, algae more than 1,000,000/liter time, it is difficult to reach new effluent water quality standard, it is necessary to be combined strengthening conventional treatment measure. Therefore the process combination of water factory, must adapt to seasonal change of water quality, realize the strengthening treatment process of conventional coagulating sedimentation, aeration or air supporting, sand filtration and ultrafiltration, determine whether to surmount operation by monitoring water quality center and management control center are collaborative, play group technology advantage, overcome the impact of the factors such as technological process algal suspension, turbidity and variations in temperature, reach satisfactory treatment effect.
Summary of the invention
It is an object of the present invention to provide the low turbid algae concentrated feeding water strengthening and processing device of a kind of seasonal metallic pollution, it is possible to solve the factor impacts on treatment effect such as metal ion, algae, turbidity and variations in temperature.
To achieve these goals, the technical scheme is that the low turbid former water combination strengthening and processing device of a kind of seasonal metallic pollution, including the water inlet pipe network being sequentially connected with, mixing pit, flocculation sedimentation tank, flotation tank, lift pump room, Aeration tank, sand filter, ultrafilter membrane group, clear water reserviors, Water-supply station and the distribution system of water supply, it is characterized in that arranging in described mixing pit aeration mixed pipe line and mixing and blending machine simultaneously, first valve is set between flocculation sedimentation tank and flotation tank, between the outfan and ultrafilter membrane group of flocculation sedimentation tank, the second valve is set, between the outfan and the input of lift pump room of flocculation sedimentation tank, the 3rd valve is set, between the outfan and the input of Aeration tank of lift pump room, the 4th valve is set, between the outfan and the input of sand filter of lift pump room, the 5th valve is set, in water inlet network collocation raw water quality monitoring point, this device also includes monitoring water quality center and management control center, described monitoring water quality center is connected with raw water quality monitoring point, management control center is connected with the aeration mixed pipe line in each valve described and mixing pit and mixing and blending machine.
It is a further object of the present invention to provide the low turbid algae concentrated feeding water strengthening treatment process of a kind of seasonal metallic pollution, it is possible to solve the factor impacts on treatment effect such as metal ion, algae, turbidity and variations in temperature.
To achieve these goals, the technical scheme is that the low turbid former water combination strengthening treatment process of a kind of seasonal metallic pollution, it is characterized in that, raw water quality by monitoring water quality Spot detection raw water quality monitoring point, aeration mixed pipe line in each valve and mixing pit and mixing and blending machine are controlled by management control center according to the raw water quality detected, it is achieved flow process switches.
When raw water turbidity be more than or equal to 10NTU, temperature be more than or equal to 5 DEG C, dissolved oxygen be more than or equal to 7mg/l, iron ion less than or equal to 0.6mg/l, manganese ion less than or equal to 0.3mg/l and algae less than or equal to 1,000,000/liter when, first valve and the 3rd valve closing and the second valve is opened, start mixing and blending machine simultaneously, closing aeration mixed pipe line, namely mixing pit adopts the mode of mechanical mixture; When raw water turbidity less than 10NTU or temperature less than 5 DEG C or dissolved oxygen less than 7mg/l or iron ion more than 0.6mg/l or manganese ion more than 0.3mg/l time, and algae less than or equal to 1,000,000/liter when, first valve and the second valve closing, 3rd valve is opened, 4th valve is opened, the 5th valve closing, simultaneously closing off mixing and blending machine, start aeration mixed pipe line, namely mixing pit adopts the mode of aeration aerating mixing; When monitoring water quality center monitors to algae is more than 1,000,000/liter, the first valve is opened, the second valve closing, 3rd valve closing, the 4th valve closing, the 5th valve are opened, and simultaneously close off mixing and blending machine, starting aeration mixed pipe line, namely mixing pit adopts the mode of aeration aerating mixing.
The present invention is directed to the characteristic of raw water quality seasonality metallic pollution and low turbid high algae and conventional coagulating sedimentation, lifting, aeration, air supporting, filtration and ultrafiltration technology are optimized combination, form strengthening conventional treatment system, by monitoring water quality center, former water, sedimentation tank water outlet and ultra-filtration water are monitored, realize flow process switching by management control center and added amount of chemical controls. The advantage of this group technology is in that according to water quality practical situation, to adopt the abbreviated system of coagulating sedimentation+ultrafiltration when raw water quality is better, it is achieved the target of energy-saving run and simplification production management; When seasonal change of water quality, adopting a complete set of technological process, it is ensured that Drinking water quality, overall procedure embodies the motility of production run and the adaptability to change of water quality. Mechanical mixture and aeration mixing two set facility are set in mixing pit, and consider that flocculation aid adds. Filler can be set in Aeration tank and improve oxygen-transfer efficiency. Lift pump room water side, it is contemplated that the head of certain height difference falls, is played and is fallen oxygenation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is mixing pit schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is the low turbid former water combination strengthening and processing device of a kind of seasonal metallic pollution, including the water inlet pipe network 1 being sequentially connected with, mixing pit 2, flocculation sedimentation tank 3, flotation tank 11, lift pump room 4, Aeration tank 5, sand filter 6, ultrafilter membrane group 7, clear water reserviors 8, Water-supply station 9 and the distribution system of water supply 10, it is characterized in that in described mixing pit, arranging aeration mixed pipe line 18 and mixing and blending machine 23 simultaneously, first valve 12 is set between flocculation sedimentation tank and flotation tank, between the outfan and ultrafilter membrane group of flocculation sedimentation tank, the second valve 13 is set, between the outfan and the input of lift pump room of flocculation sedimentation tank, the 3rd valve 14 is set, between the outfan and the input of Aeration tank of lift pump room, the 4th valve 15 is set, between the outfan and the input of sand filter of lift pump room, the 5th valve 16 is set, in water inlet network collocation raw water quality monitoring point, this device also includes monitoring water quality center 19 and management control center 20, described monitoring water quality center 19 is connected with raw water quality monitoring point, management control center 20 is connected with the aeration mixed pipe line in each valve described and mixing pit and mixing and blending machine.
The present invention includes the low turbid algae concentrated feeding water combination strengthening treatment process of a kind of seasonal metallic pollution, raw water quality by monitoring water quality Spot detection raw water quality monitoring point, when raw water turbidity is be more than or equal to 10NTU, temperature is be more than or equal to 5 DEG C, dissolved oxygen is be more than or equal to 7mg/l, iron ion is less than or equal to 0.6mg/l, manganese ion less than or equal to 0.3mg/l and algae less than or equal to 1,000,000/liter time, management control center switching motor-operated control valve, make that the first valve 12 and the 3rd valve 14 are closed and the second valve 13 is opened, start mixing and blending machine 23 simultaneously, close aeration mixed pipe line 18, namely mixing pit 2 is adopted to carry out mechanical mixture after the first dosing of former water 1, water outlet enters flocculation sedimentation tank 3 and precipitates, then immediately proceed to ultrafilter membrane group 7 and remove turbidity and other impurity further, the distribution system of water supply 10 is sent into by Water-supply station 9 after regulating and storing again through clear water reserviors 8. arrange the monitoring water quality center 19 water quality to former water 1, flocculation sedimentation tank 3 water outlet and ultrafilter membrane group 7 water outlet to be monitored, first valve, the second valve, the 3rd valve, the 4th valve and the 5th valve all adopt motor-operated control valve, management control center 20 is set each chemical feeding points and motor-operated control valve are carried out dosage and Row control. when monitoring water quality center 19 monitor former water 1 turbidity less than 10NTU or temperature less than 5 DEG C or dissolved oxygen less than 7mg/l or iron ion more than 0.6mg/l or, manganese ion more than 0.3mg/l time, management control center 20 is by switching motor-operated control valve, first valve 12 and the second valve 13 are closed, 3rd valve 14 is opened, 4th valve 15 is opened, the 5th valve 16 is closed, simultaneously close off mixing and blending machine 23, starting aeration mixed pipe line 18, namely mixing pit 2 is changed into aeration aerating mixing by mechanical mixture. the concrete technique that processes includes: enters mixing pit 2 after the dosing of former water elder generation and carries out aeration mixing, precipitate subsequently into flocculation sedimentation tank 3, sedimentation tank 3 water outlet is promoted by lift pump room 4, enter back into Aeration tank 5 and carry out aeration aerating to improve dissolved oxygen concentration, Aeration tank 5 water outlet enters sand filter 6 and filters to remove metal ion, removed turbidity and other impurity subsequently further by ultrafilter membrane group 7, water outlet is sent into the distribution system of water supply 10 by Water-supply station 9 after being regulated and stored by clear water reserviors 8. when monitoring water quality center 19 monitors former water 1 algae more than 1,000,000/liter, management control center switching motor-operated control valve, first valve 12 is opened, second valve 13 is closed, 3rd valve 14 is closed, 4th valve 15 is closed, the 5th valve 16 is opened, simultaneously close off mixing and blending machine, start aeration mixed pipe line, namely first adding flotation tank 11 between the input of the outfan of flocculation sedimentation tank 3 and ultrafilter membrane group 7 and carry out air floatation alga removing, mixing pit 2 is changed into aeration aerating mixing by mechanical mixture simultaneously. the concrete technique that processes includes: enters mixing pit 2 after the dosing of former water elder generation and carries out aeration mixing, precipitate subsequently into flocculation sedimentation tank 3, precipitation water outlet removes algae by flotation tank 11, it is lifted into sand filter 6 again through lift pump room 4 and removes metal ion, removed turbidity and other impurity subsequently further by ultrafilter membrane group 7, water outlet is sent into the distribution system of water supply 10 by Water-supply station 9 after being regulated and stored by clear water reserviors 8.
The present invention arranges chemical feeding points at the water inlet end of mixing pit, and the water inlet end at sand filter sets filter aid toss area, sets disinfectant toss area before clear water reserviors. according to a particular embodiment of the invention, chlorine or chlorine dioxide 12 is added before mixing pit 2 pond, potassium permanganate (complex salt) 13, powder activated carbon 14, vitriol 15 also adds the general potassium permanganate of flocculation aid 16(and the test of powder activated carbon visual raw water quality decides whether to add in pond, all the other medicaments are both needed to add, with reference to adding pharmaceutical quantities: the dosage of chlorine is about 2mg/l, the dosage of chlorine dioxide is about 1mg/l, the dosage of potassium permanganate about 1��2mg/l, the dosage of powder activated carbon about 5��10mg/l, the dosage of vitriol about 20��30mg/l, flocculation aid can adopt PAM, dosage is 0.1��0.2mg/l about), adding filter aid 17(filter aid before sand filter 6 and can adopt aluminium polychlorid, dosage is 3��5mg/l about), add chlorine before clear water reserviors 8 or chlorine dioxide 12 is sterilized. (dosage of chlorine about 2��3mg/l, the dosage of chlorine dioxide about 1��2mg/l). the present invention is also in the water side of flocculation sedimentation tank 3, the water side of ultrafilter membrane group 7 arranges Water-quality Monitoring Points, being detected water quality data according to water quality detection center 19 in Water-quality Monitoring Points by management control center 20 and be adjusted concrete chemical feeding quantity, general control flocculation sedimentation tank delivery turbidity is less than 2NTU, ultrafilter membrane group delivery turbidity is less than 0.1NTU, and iron ion is less than 0.3mg/l, and manganese ion is less than 0.1mg/l.
Former water enters mixing pit 2 by water inlet pipe 21, arranges aeration mixed pipe line 18, flocculation aid toss area 17, mixing and blending machine 23 and effluent weir 24 in pond, and water outlet accesses flocculation sedimentation tank 3 by outlet pipe 22. Management control center controls mixing pit operational mode, when adopting mechanical mixture, starts mixing and blending machine 23, closes aeration mixed pipe line 18; Adopt and close mixing and blending machine 23 during aeration aerating mixing, start aeration mixed pipe line 18. During aeration aerating mixing, air capacity is 0.3��1.3 according to gas-water ratio.
All the other flocculation sedimentation tanks, flotation tank, sand filter, Aeration tank, ultrafilter membrane group, clear water reserviors and Water-supply station are prior art, no longer describe in detail.
Claims (3)
1. the low turbid former water combination strengthening and processing device of a seasonal metallic pollution, including the water inlet pipe network being sequentially connected with, mixing pit, flocculation sedimentation tank, flotation tank, lift pump room, Aeration tank, sand filter, ultrafilter membrane group, clear water reserviors, Water-supply station and the distribution system of water supply, it is characterized in that arranging in described mixing pit aeration mixed pipe line and mixing and blending machine simultaneously, first valve is set between flocculation sedimentation tank and flotation tank, between the outfan and ultrafilter membrane group of flocculation sedimentation tank, the second valve is set, between the outfan and the input of lift pump room of flocculation sedimentation tank, the 3rd valve is set, between the outfan and the input of Aeration tank of lift pump room, the 4th valve is set, between the outfan and the input of sand filter of lift pump room, the 5th valve is set, in water inlet network collocation raw water quality monitoring point, this device also includes monitoring water quality center and management control center, described monitoring water quality center is connected with raw water quality monitoring point, management control center is connected with the aeration mixed pipe line in each valve described and mixing pit and mixing and blending machine, when raw water turbidity is be more than or equal to 10NTU, temperature is be more than or equal to 5 DEG C, dissolved oxygen is be more than or equal to 7mg/l, iron ion is less than or equal to 0.6mg/l, manganese ion less than or equal to 0.3mg/l and algae less than or equal to 1,000,000/liter when, first valve and the 3rd valve closing and the second valve is opened, start mixing and blending machine simultaneously, close aeration mixed pipe line, namely mixing pit adopts the mode of mechanical mixture, when raw water turbidity less than 10NTU or temperature less than 5 DEG C or dissolved oxygen less than 7mg/l or iron ion more than 0.6mg/l or manganese ion more than 0.3mg/l time, and algae less than or equal to 1,000,000/liter when, first valve and the second valve closing, 3rd valve is opened, 4th valve is opened, the 5th valve closing, simultaneously closing off mixing and blending machine, start aeration mixed pipe line, namely mixing pit adopts the mode of aeration aerating mixing, when monitoring water quality center monitors to algae is more than 1,000,000/liter, the first valve is opened, the second valve closing, 3rd valve closing, the 4th valve closing, the 5th valve are opened, and simultaneously close off mixing and blending machine, starting aeration mixed pipe line, namely mixing pit adopts the mode of aeration aerating mixing.
2. process device as claimed in claim 1, it is characterised in that in the water side of flocculation sedimentation tank, the water side of ultrafilter membrane group arranges Water-quality Monitoring Points.
3. processing device as claimed in claim 1, it is characterised in that the water inlet end at mixing pit arranges chemical feeding points, the water inlet end at sand filter sets filter aid toss area, sets disinfectant toss area before clear water reserviors.
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| CN113233636A (en) * | 2021-04-19 | 2021-08-10 | 深圳市信力坚环保科技有限公司 | Treatment process of low-temperature low-turbidity water with excessive iron and manganese |
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