CN1199889C - Drinking water treating membrane system and drinking water preparing process - Google Patents

Drinking water treating membrane system and drinking water preparing process Download PDF

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Publication number
CN1199889C
CN1199889C CN 01124169 CN01124169A CN1199889C CN 1199889 C CN1199889 C CN 1199889C CN 01124169 CN01124169 CN 01124169 CN 01124169 A CN01124169 A CN 01124169A CN 1199889 C CN1199889 C CN 1199889C
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water
ozone
membrane
activated carbon
water outlet
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CN1332125A (en
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王志成
翟砚章
张隆久
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JIANSHUO INDUSTRY DEVELOPMENT Co Ltd TIANJIN DEVELOPMENT ZONE
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JIANSHUO INDUSTRY DEVELOPMENT Co Ltd TIANJIN DEVELOPMENT ZONE
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Abstract

The present invention relates to a membrane technology treatment drinking water system and preparation technology of drinking water. According to the water quality of different water sources, ozone, activated carbon and one kind selected from a micro-filtration membrane, an ultra-filtration membrane and a nanometer filtration membrane are used to remove harmful, poisonous and carcinogenic substances from water and reserve the nature properties of water bodies so as to most economical, safe and good water quality. The water quality after treatment mainly indexes that turbidity is smaller than or equal to 0.2 Ntu, general physical and chemical indexes are 0.1 mg/l, 70% to 100% of harmful and toxic substances are removed, and the nature properties of microelements beneficial to human bodies are reserved; the water quality reaches the world advanced level.

Description

Membrane process processing drinking water system and potable water technology
The present invention relates to a kind of water treatment system, particularly a kind of membrane process processing drinking water system and potable water technology.
Current shortage of fresh water and the contaminated problem that become international, the mankind have produced query to drinking public water supply.Membrane process is to adopt traditional precipitation, filtration and sterilization in producing the tap water process, remove the in-depth under can not condition of compatibility of silt, colloid and bacterium, bring up to and guaranteeing under the prerequisite of microbial safety, removing a large amount of inorganic pollutant and organic pollutant, the especially latter is the main object that membrane process is handled.At present, be to adopt reverse osmosis high-pressure film (RO) system water mostly stereotypedly, but can not selectively select different filter membrane system water according to the condition of water quality of former water (city tap-water).The natural sex that adopts reverse osmosis high-pressure film (RO) system water not only can remove and destroy trace element in the water is unfavorable for outside the HUMAN HEALTH, but also meeting mass consumption fresh water and electric energy.
The purpose of this invention is to provide a kind of ozone is key position and membrane process processing drinking water system and the potable water technology that can select different filter membranes according to the raw water quality condition with the filter membrane with the activated carbon on-line execute.
The present invention is membrane process processing drinking water system and potable water technology.Comprise that with the water source that meets the low turbidity of tap water the surface water, underground water, mineral water and city tap-water are as the water source.Fixedly connected with the upper end water-in of under meter table, pressure warning unit, suspended body flowmeter table and sand-bed filter in the water source, sand-bed filter is and is connected in series or parallel.Calculate the water yield for the control water yield by water meter, control enters the hydraulic pressure of sand filtration post, be as the criterion with pressure gauge reading, and with suspended body flowmeter stabilizing water quantity and hydraulic pressure.The sand filtration post can be single filter post, also can be made of the parallel connection of a plurality of sand filtration post.Be stored into high-order flush pot through the water after the sand filtration, be used to wash the sand filtration post, also available pump substitutes high-order flush pot.If also available directly flushing with tap water sand filtration post in particular cases, as shown in Figure 1.
The bottom water outlet of sand-bed filter is fixedlyed connected with the upper end water-in of first step ozone reactor, and the ozone gas pipe is fixedly installed on the bottom of ozone reactor, and ozone machine is fixedlyed connected with the ozone gas pipe.The bottom water outlet of first step ozone reactor is fixedlyed connected with the upper end water-in of activated carbon column, and the ozone gas pipe is fixedly installed on the bottom of activated carbon column, and ozone machine is fixedlyed connected with the ozone gas pipe, and activated carbon column is serial or parallel connection and connects.The ozone that ozonizer produces can react with water through the ozone gas pipe.For guaranteeing not breed bacteria of activated carbon column, in flushing or when inactive, fill ozone, then the water rinse that contains ozone to the greatest extent with lift pump or special-purpose flushing pump through the ozone gas pipe of activated carbon column bottom.The bottom water outlet of activated carbon column is fixedlyed connected with the water-in of intermediate buffering jar, and charcoal filter back water outlet is flowed out through the activated carbon column bottom, enters the intermediate buffering jar, and water decomposes residual ozone to the greatest extent in jar.The water-in of lift pump is fixedlyed connected with the water outlet of intermediate buffering jar, and the water outlet of lift pump is fixedlyed connected with the water-in of secondary filter, as shown in Figure 1.
Through sand-bed filter particulate in the tap water is filtered as the water source with city tap-water, entering ozone reactor degrades chemical pollutant in the water, enter activated carbon filter post again, form ozone and activated carbon on-line execute and constitute bioactive carbon, make gac keep the works fine state.Also can when the flushing gac, fill ozone for this reason, enter the intermediate buffering jar again and play shock absorption, also can when washing activated carbon, fill ozone for making activated carbon be in the works fine state, and then clean with the water that does not have ozone containing the washing of ozone wash-down water, enter secondary filter by promoting water pump.
So not only solve the single-activity charcoal and be in operation and make suspended matter and organic substance produce mucus, cause carbon-coating under anaerobic state, to stop up carbon-coating, cause water quality to degenerate, and the short activated carbon adsorption ability of having grown increases.
Adopt the ozone activated carbon online, can form biological activated energy, this has not only been avoided carbon filterbed under the condition of being sick of, carbon-coating is got clogged, and water quality problem such as degenerate is owing to there is sufficient oxygen, make carbon-coating that enough matrix be arranged, thereby increased the activated carbon adsorption ability, increase the service life.
Bioactive carbon also has one to be worth very attractive problem aspect membrane treatment process, be that ozone is a kind of strong oxidizer, in case reasons such as operation and misoperation, ozone contacts with film, the lighter reduces the life-span of film, weight person will make film destroyed, and is impaired and make gac be in the works fine state in order not make film.
The way of its solution is by following two kinds of methods: one, through the water behind the bioactive carbon, the intermediate buffering jar that enters setting keeps certain hour that ozone is decomposed at this in container using up.Its two, activated carbon column flushing or when out of service is filled the method for ozone and is guaranteed not breed bacteria of charcoal layer inside.Clean with the water that does not have ozone again when waiting to move beginning containing the washing of ozone wash-down water, directly enter secondary filter through promoting water pump entering surge tank or cross over surge tank, adopt aforesaid way on purpose to select different films according to the water quality situation of source water.
The water outlet of secondary filter is connected with at least one filter membrane water-in of microfiltration membrane, ultra-filtration membrane, nanofiltration membrane, the water outlet of microfiltration membrane, ultra-filtration membrane and nanofiltration membrane is fixedlyed connected with the upper end water-in of second stage ozone reactor, the ozone gas pipe is fixedly installed on the bottom of ozone reactor, ozone machine is fixedlyed connected with the ozone gas pipe, as shown in Figure 1.
Water through secondary filter enters microfiltration membrane (MF) and ultra-filtration membrane (UF) and nanofiltration membrane (NF) filtration again.The water of process secondary filter also can enter microfiltration membrane (MF) or ultra-filtration membrane (UF) or nanofiltration membrane (NF) and filter; The water of process secondary filter also can enter microfiltration membrane (MF) and filter with ultra-filtration membrane (UF); The water of process secondary filter also can enter ultra-filtration membrane (UF) and filter with nanofiltration membrane (NF); The water of process secondary filter also can enter microfiltration membrane (MF) and filter with nanofiltration membrane (NF), as shown in Figure 1 and Figure 2.
When former water contains the light contamination thing, can select microfiltration membrane (being Microfiltration-MF) for use, remove the pollution substance of microorganism and bacterial count magnitude; When former water contains the pollution substance that is harmful to poisonous and carcinogens and viral load level, can select ultra-filtration membrane (ultrafiltration-UF) for use, remove pollution substance harmful poisonous and carcinogens and viral load level; When former water contains hardness, fluorochemical exceeds standard and water when the divalent ion materials such as hardness, vitriol, fluorochemical and muriate that puckery, bitter, saline taste road etc. is harmful and mouthfeel is uncomfortable are arranged, can select nanofiltration membrane (Nanofiltration-NF) for use is the nanofiltration membrane filtering technique.
The use of connecting with nanofiltration membrane (NF) of microfiltration membrane (MF) and ultra-filtration membrane (UF).When series connection is used, can or subdue water treatment link before the secondary filter in conjunction with the water quality its corresponding simplified of source water.
The bottom water outlet of second stage ozone reactor is fixedlyed connected with the upper end water-in of water tank, and the water outlet of ultraviolet disinfector and water tank links, as shown in Figure 1.
Water after filtering can enter water tank again after ozone reactor is handled, the place is provided with the ultraviolet disinfector sterilization at the water tank water outlet, and the tap water of being produced is: produce the tap water that water is drunk at any time at any time, as shown in Figure 1 and Figure 2.
Balling iron is fixedlyed connected with the water-in of water tank, as shown in Figure 1.
Water after filtering can enter water tank again after ozone reactor is handled, before entering water tank and middle by the balling iron filling medicament of guaranteeing the quality, make the residual volume of the medicament of guaranteeing the quality in the water maintain 0.005-0.01mg/l, can guarantee water quality safety at the water tank water outlet.The tap water of being produced is: but the long period tap water of guaranteeing the quality, as shown in Figure 1 and Figure 2.
High-order flush pot is fixedlyed connected with the water-in of sand-bed filter.Flushing pump is fixedlyed connected with the water-in of secondary filter and the bottom water outlet of activated carbon column.The bottom water outlet of sand-bed filter is fixedlyed connected with the upper end water-in of activated carbon column.Switchboard and pressure warning unit, suspended body flowmeter table, ozone machine, lift pump and flushing pump link, as shown in Figure 1.
Fixedly install the ozone gas pipe in the bottom of first step ozone reactor and the bottom of second stage ozone reflecting device, ozone machine is fixedlyed connected with the ozone gas pipe.Fixedly install the ozone gas pipe in the bottom of activated carbon column, ozone machine is fixedlyed connected with the ozone gas pipe, as shown in Figure 1.
Flushing pump is connected with at least one filter membrane water outlet of microfiltration membrane, ultra-filtration membrane, nanofiltration membrane, as shown in Figure 1.
Activated carbon column need wash after operation for some time, can control its washing water quantity that needs with the lifting water pump during flushing and wash.The assembly of secondary filter generally can reach setting range and change according to the pressure-losses of operational conditions, time and appearance.Microfiltration membrane, ultra-filtration membrane, nanofiltration membrane can be washed simultaneously according to the cycle of operation of activated carbon column, controlled its washing water quantity, hydraulic pressure that needs with special-purpose flushing pump during flushing and washed.The key position of a complete set of facility is controlled and is detected and show by switchboard, as shown in Figure 1 and Figure 2.
Particulate in the water is filtered through sand-bed filter with the water source that meets the low turbidity of tap water, entering first step ozone reactor degrades chemical pollutant in the water, enter activated carbon filter post again, form ozone and activated carbon on-line execute and constitute bioactive carbon, enter the intermediate buffering jar and play shock absorption, also can when washing activated carbon, fill ozone for making activated carbon be in the works fine state, and then it is clean containing the washing of ozone wash-down water with the water that does not have ozone, enter secondary filter by promoting water pump, microfiltration membrane is flow through in the water outlet of secondary filter successively, ultra-filtration membrane, at least one filter membrane of nanofiltration membrane.When former water contains the light contamination thing, can select microfiltration membrane (being Microfiltration-MF) for use, remove the pollution substance of microorganism and bacterial count magnitude; When former water contains the pollution substance that is harmful to poisonous and carcinogens and viral load level, can select ultra-filtration membrane (ultrafiltration-UF) for use, remove pollution substance harmful poisonous and carcinogens and viral load level; When former water contains hardness, fluorochemical exceeds standard and water when the divalent ion materials such as hardness, vitriol, fluorochemical and muriate that puckery, bitter, saline taste road etc. is harmful and mouthfeel is uncomfortable are arranged, can select nanofiltration membrane (Nanofiltration-NF) for use; Entering the ozone reflecting device filling ozone and the medicament of guaranteeing the quality again is that finished product is gone into water tank; Also can the ultraviolet disinfector sterilization be set, as shown in Figure 2 at water tank water outlet place.
Water after filtering can enter water tank again after ozone reactor is handled, before entering water tank and middle by the balling iron filling medicament of guaranteeing the quality, make the residual volume of the medicament of guaranteeing the quality in the water maintain 0.005-0.01mg/l, can guarantee water quality safety at the water outlet of water tank.Also can at water tank water outlet place the ultraviolet disinfector sterilization be set, as shown in Figure 2 at the water after handling through ozone reactor.
The present invention is membrane process processing drinking water system and potable water technology.Not machine-made employing reverse osmosis high-pressure film (RO) system water, ozone, activated carbon are online can to obtain most economical, safe and good water quality contaminated harmful, poisonous and carcinogenic substance removes and keep the natural sex of trace element in the water body again in the water in conjunction with selecting for use of microfiltration membrane, ultra-filtration membrane and nanofiltration membrane again but adopt according to different source quality.Sand-bed filter is according to the pre-treatment effect as this flow process of the thickness of the grating in sand grains footpath and layer of sand, and it mainly plays in this technical process at tap water and produces the particulate that process and very long urban pipe network, each link that channel is carried produce, the removal of impurity.Bioactive carbon if improper meeting enters in the film residual ozone, causes that film is oxidized in the design and running operation, the lighter reduces membrane lifetime, and serious meeting is destroyed film.Leading indicator through the water quality after this art breading is: turbidity≤0.2Ntu, general physics, chemical index≤0.1mg/l, harmful and noxious substance (by different components) can be removed 70-100%, and keeps the natural sex to human body beneficial's trace element, and its water quality is ranked among advanced international standard.The tap water of making meets the regulation among State Standard of the People's Republic of China's " drinking water sanitary standard " GB5749-85 and " direct drinking water water quality standard " CJ94-1999.
The structural arrangement synoptic diagram of Fig. 1 membrane process processing drinking water system
The process flow sheet of Fig. 2 membrane process processing drinking water system
1 water source, 2 pressure warning units, 3 suspended body flowmeter tables, 4 sand-bed filters, 5 ozone reactors, 6 activated carbon columns, 7 intermediate buffering jars, 8 lift pumps, 9 secondary filters, 10 microfiltration membrane, 11 ultra-filtration membranes, 12 nanofiltration membrane, 13 water tanks, 14 flushing pumps, 15 ultraviolet disinfectors, 16 under meter tables, 17 high-order flush pots, 18 switchboards, 19 ozone machines, 20 ozone gas pipes, 21 balling irons
Below be described with reference to the accompanying drawings with embodiment.
Embodiment 1
To meet the low turbidity of tap water is water source 1.Fixedly connected with the upper end water-in of under meter table 16, pressure warning unit 2, suspended body flowmeter table 3 and sand-bed filter 4 in water source 1, sand-bed filter 4 is series connection and links.The bottom water outlet of sand-bed filter 4 is fixedlyed connected with the upper end water-in of first step ozone reactor 5, ozone gas pipe 20 is fixedly installed on the bottom of first step ozone reactor 5, ozone machine 19 is fixedlyed connected with ozone gas pipe 20, the bottom water outlet of first step ozone reactor 5 is fixedlyed connected with the upper end water-in of activated carbon column 6, ozone gas pipe 20 is fixedly installed on the bottom of activated carbon column 6, ozone machine 19 is fixedlyed connected with ozone gas pipe 20, and activated carbon column 6 is and is connected in series.The bottom water outlet of activated carbon column 6 is fixedlyed connected with the water-in of intermediate buffering jar 7, and the water-in of lift pump 8 is fixedlyed connected with the water outlet of intermediate buffering jar 7, and the water outlet of lift pump 8 is fixedlyed connected with the upper end water-in of secondary filter 9, as shown in Figure 1.
The water outlet of secondary filter 9 is connected with the water-in of microfiltration membrane 10, the water outlet of microfiltration membrane 10 is fixedlyed connected with the upper end water-in of second stage ozone reactor 5, ozone gas pipe 20 is fixedly installed on the bottom of ozone reactor 5, ozone machine 19 is fixedlyed connected with ozone gas pipe 20, as shown in Figure 1.
When former water contains the light contamination thing, can select microfiltration membrane (being Microfiltration-MF) for use, remove the pollution substance of microorganism and bacterial count magnitude.
The bottom water outlet of second stage ozone reactor 5 is fixedlyed connected with the upper end water-in of water tank 13, and ultraviolet disinfector 15 links with the water outlet of water tank 13, as shown in Figure 1.
Water after filtering can enter water tank 13 again after ozone reactor 5 is handled, 13 water outlet places are provided with ultraviolet disinfector 15 sterilizations at water tank, and the tap water of being produced is: produce the tap water that water is drunk at any time at any time, as shown in Figure 1.
Embodiment 2
To meet the low turbidity of tap water is water source 1.Fixedly connected with the upper end water-in of under meter table 16, pressure warning unit 2, suspended body flowmeter table 3 and sand-bed filter 4 in water source 1, sand-bed filter 4 is in parallel and links.The bottom water outlet of sand-bed filter 4 is fixedlyed connected with the upper end water-in of first step ozone reactor 5, ozone gas pipe 20 is fixedly installed on the bottom of first step ozone reactor 5, ozone machine 19 is fixedlyed connected with ozone gas pipe 20, the bottom water outlet of first step ozone reactor 5 is fixedlyed connected with the upper end water-in of activated carbon column 6, ozone gas pipe 20 is fixedly installed on the bottom of activated carbon column 6, ozone machine 19 is fixedlyed connected with ozone gas pipe 20, and activated carbon column 6 is and is connected in parallel.The bottom water outlet of activated carbon column 6 is fixedlyed connected with the water-in of intermediate buffering jar 7, and the water-in of lift pump 8 is fixedlyed connected with the water outlet of intermediate buffering jar 7, and the water outlet of lift pump 8 is fixedlyed connected with the water-in of secondary filter 9, as shown in Figure 1.
When former water contains the pollution substance that is harmful to poisonous and carcinogens and viral load level, can select ultra-filtration membrane (ultrafiltration-UF) for use, remove pollution substance harmful poisonous and carcinogens and viral load level.The water outlet of secondary filter 9 is connected with the water-in of ultra-filtration membrane 11, the water outlet of ultra-filtration membrane 11 is fixedlyed connected with the upper end water-in of second stage ozone reactor 5, ozone gas pipe 20 is fixedly installed on the bottom of second stage ozone reactor 5, ozone machine 19 is fixedlyed connected with ozone gas pipe 20, as shown in Figure 1.
The bottom water outlet of second stage ozone reactor 5 is fixedlyed connected with the upper end water-in of water tank 13, water after filtering can enter water tank 13 again after ozone reactor 5 is handled, before entering water tank 13 and middle by the balling iron 21 filling medicament of guaranteeing the quality, make the residual volume of preservative in the water maintain 0.005-0.01mg/l, can guarantee water quality safety at water tank 13 water outlets.The tap water of being produced is: but the long period tap water of guaranteeing the quality, as shown in Figure 1.
Embodiment 3
To meet the low turbidity of tap water is water source 1.Fixedly connected with the upper end water-in of under meter table 16, pressure warning unit 2, suspended body flowmeter table 3 and sand-bed filter 4 in water source 1, sand-bed filter 4 is series connection and links.The bottom water outlet of sand-bed filter 4 is fixedlyed connected with the upper end water-in of first step ozone reactor 5, ozone gas pipe 20 is fixedly installed on the bottom of first step ozone reactor 5, ozone machine 19 is fixedlyed connected with ozone gas pipe 20, the bottom water outlet of first step ozone reactor 5 is fixedlyed connected with the upper end water-in of activated carbon column 6, ozone gas pipe 20 is fixedly installed on the bottom of activated carbon column 6, ozone machine 19 is fixedlyed connected with ozone gas pipe 20, and activated carbon column 6 is and is connected in series.The bottom water outlet of activated carbon column 6 is fixedlyed connected with the water-in of intermediate buffering jar 7, and the water-in of lift pump 8 is fixedlyed connected with the water outlet of intermediate buffering jar 7, and the water outlet of lift pump 8 is fixedlyed connected with the water-in of secondary filter 9, as shown in Figure 1.
The bottom water outlet of secondary filter 9 is connected with the water-in of nanofiltration membrane 12, the upper end water outlet of nanofiltration membrane 12 is fixedlyed connected with the upper end water-in of second stage ozone reactor 5, ozone gas pipe 20 is fixedly installed on the bottom of second stage ozone reactor 5, ozone machine 19 is fixedlyed connected with ozone gas pipe 20, as shown in Figure 1.
When tap water contains hardness, fluorochemical exceeds standard and water when the divalent ion materials such as hardness, vitriol, fluorochemical and muriate that puckery, bitter, saline taste road etc. is harmful and mouthfeel is uncomfortable are arranged, can select nanofiltration membrane (Nanofiltration-NF) for use is the nano-film filtration technology.
The bottom water outlet of second stage ozone reactor 5 is fixedlyed connected with the upper end water-in of water tank 13, water after filtering can enter water tank 13 again after ozone reactor 5 is handled, before entering water tank 13 and middle by the balling iron 21 filling medicament of guaranteeing the quality, make the residual volume of preservative in the water maintain 0.005-0.01mg/l, can guarantee water quality safety at the water outlet of water tank 13.The tap water of being produced is: but the long period tap water of guaranteeing the quality, as shown in Figure 1.
Embodiment 4
High-order flush pot 17 is fixedlyed connected with the water-in of sand-bed filter 4.Flushing pump 14 is fixedlyed connected with the upper end water-in of secondary filter 9 and the bottom water outlet of activated carbon column 6.The bottom water outlet of sand-bed filter 4 is fixedlyed connected with the upper end water-in of activated carbon column 6.Switchboard 18 links with pressure warning unit 2, suspended body flowmeter table 3, ozone machine 19, lift pump 8 and flushing pump 14, as shown in Figure 1.
Fixedly install ozone gas pipe 20 in the bottom of first step ozone reactor 5 and the bottom of second stage ozone reactor 5, ozone machine 19 is fixedlyed connected with ozone gas pipe 20.Fixedly install ozone gas pipe 20 in the bottom of activated carbon column 6, ozone machine 19 is fixedlyed connected with ozone gas pipe 20, as shown in Figure 1.
Particulate in the water is filtered through sand-bed filter 4 with the water source that meets the low turbidity of tap water, entering first step ozone reactor 5 degrades chemical pollutant in the water, enter activated carbon filter post 6 again, form ozone and activated carbon on-line execute and constitute bioactive carbon, enter intermediate buffering jar 7 and play shock absorption, also can when filtering post 6, fill the flushing activated carbon ozone for making activated carbon be in the works fine state, and then clean with the water that does not have ozone containing the washing of ozone wash-down water, enter secondary filter 9 by promoting water pump 8.
Embodiment 5
Particulate in the water is filtered through sand-bed filter 4 with the water source that meets the low turbidity of tap water, entering first step ozone reactor 5 degrades chemical pollutant in the water, enter activated carbon filter post 6 again, form ozone and activated carbon on-line execute and constitute bioactive carbon, enter intermediate buffering jar 7 and play shock absorption, also can when filtering post, fill the flushing activated carbon ozone for making activated carbon be in the works fine state, and then it is clean containing the washing of ozone wash-down water with the water that does not have ozone, enter secondary filter 9 by promoting water pump 8, microfiltration membrane is flow through in the water outlet of secondary filter successively, ultra-filtration membrane, at least one filter membrane of nanofiltration membrane.When former water contains the light contamination thing, can select microfiltration membrane 10 (being Microfiltration-MF) for use, remove the pollution substance of microorganism and bacterial count magnitude.When former water contains the pollution substance that is harmful to poisonous and carcinogens and viral load level, can select ultra-filtration membrane 11 (ultrafiltration-UF) for use, remove pollution substance harmful poisonous and carcinogens and viral load level; When former water contains hardness, fluorochemical exceeds standard and water when the divalent ion materials such as hardness, vitriol, fluorochemical and muriate that puckery, bitter, saline taste road etc. is harmful and mouthfeel is uncomfortable are arranged, can select nanofiltration membrane 12 (Nanofiltration-NF) for use; Entering the second stage ozone reactor 5 filling ozone and the medicament of guaranteeing the quality again is that finished product is gone into water tank 13; Also can ultraviolet disinfector 15 sterilizations be set, as shown in Figure 1 and Figure 2 at water tank 13 water outlet places.
Water after filtering can enter water tank 13 again after second stage ozone reactor 5 is handled, before entering water tank 13 and middle by the balling iron 21 filling medicament of guaranteeing the quality, make the residual volume of the medicament of guaranteeing the quality in the water maintain 0.005-0.01mg/l, can guarantee water quality safety at water tank 13 water outlets.Also can at water tank 13 water outlet places ultraviolet disinfector 15 sterilizations be set at the water after handling through second stage ozone reactor 5.

Claims (9)

1, a kind of membrane process processing drinking water system is characterized in that water source (1) fixedlys connected with suspended body flowmeter table (3), pressure warning unit (2), suspended body flowmeter table (3) and the upper end water-in of sand-bed filter (4), and sand-bed filter (4) is and is connected in series or parallel; The bottom water outlet of sand-bed filter (4) is fixedlyed connected with the upper end water-in of first step ozone reactor (5), the bottom water outlet of first step ozone reactor (5) is fixedlyed connected with the upper end water-in of activated carbon column (6), and activated carbon column (6) is serial or parallel connection and connects; The bottom water outlet of activated carbon column (6) is fixedlyed connected with the water-in of intermediate buffering jar (7), the water-in of lift pump (8) is fixedlyed connected with the water outlet of intermediate buffering jar (7), and the water outlet of lift pump (8) is fixedlyed connected with the water-in of secondary filter (9); The water outlet of secondary filter (9) is connected with at least one filter membrane water-in of microfiltration membrane (10), ultra-filtration membrane (11), nanofiltration membrane (12), the upper end water outlet of microfiltration membrane (10), ultra-filtration membrane (11) and nanofiltration membrane (12) is fixedlyed connected with the upper end water-in of second stage ozone reactor (5), ozone gas pipe (20) is fixedly installed on the bottom of second stage ozone reactor (5), and ozone machine (19) is fixedlyed connected with ozone gas pipe (20); The bottom water outlet of second stage ozone reactor (5) is fixedlyed connected with the upper end water-in of water tank (13), and ultraviolet disinfector (15) links with the water outlet of water tank (13).
2, membrane process processing drinking water according to claim 1 system is characterized in that balling iron (21) fixedlys connected with the water-in of water tank (13).
3, membrane process processing drinking water according to claim 1 system is characterized in that high-order flush pot (17) fixedlys connected with the water-in of sand-bed filter (4).
4, membrane process processing drinking water according to claim 1 system is characterized in that flushing pump (14) fixedlys connected with the bottom water outlet of activated carbon column (6) with the water-in of secondary filter (9).
5, membrane process processing drinking water according to claim 1 system is characterized in that the bottom water outlet of sand-bed filter (4) fixedlys connected with the upper end water-in of activated carbon column (6).
6, membrane process processing drinking water according to claim 1 system is characterized in that switchboard (18) and pressure warning unit (2), suspended body flowmeter table (3), ozone machine (19), lift pump (8) and flushing pump (14) link.
7, membrane process processing drinking water according to claim 1 system, it is characterized in that the bottom in first step ozone reactor (5), the bottom of second stage ozone reactor (5) and the bottom of activated carbon column (6) fixedly install ozone gas pipe (20), ozone machine (19) is fixedlyed connected with ozone gas pipe (20).
8, membrane process processing drinking water according to claim 1 system is characterized in that flushing pump (14) is connected with at least one filter membrane water outlet of microfiltration membrane (10), ultra-filtration membrane (11), nanofiltration membrane (12).
9, a kind of membrane process processing drinking water potable water technology, it is characterized in that through sand-bed filter (4) particulate in the water being filtered with the water source that meets the low turbidity of tap water, entering first step ozone reactor (5) degrades chemical pollutant in the water, enter activated carbon filter post (6) again, form ozone and activated carbon on-line execute and constitute bioactive carbon, enter intermediate buffering jar (7) and play shock absorption, also can when washing activated carbon, fill ozone for making activated carbon be in the works fine state, and then it is clean containing the washing of ozone wash-down water with the water that does not have ozone, enter secondary filter (9) by lift pump (8), microfiltration membrane (10) is flow through in the water outlet of secondary filter (9) successively, ultra-filtration membrane (11), at least one filter membrane of nanofiltration membrane (12); When former water contains the light contamination thing, can select microfiltration membrane (10) for use, remove the pollution substance of microorganism and bacterial count magnitude; When former water contains the pollution substance that is harmful to poisonous and carcinogens and viral load level, can select ultra-filtration membrane (11) for use, remove pollution substance harmful poisonous and carcinogens and viral load level; When former water contains hardness, fluorochemical exceeds standard and water when the divalent ion materials such as hardness, vitriol, fluorochemical and muriate that puckery, bitter, saline taste road etc. is harmful and mouthfeel is uncomfortable are arranged, can select nanofiltration membrane (12) for use; Entering second stage ozone reactor (5) the filling ozone and the medicament of guaranteeing the quality again is that finished product is gone into water tank (13); Also ultraviolet disinfector (15) sterilization can be set at water tank (13) water outlet place.
CN 01124169 2001-08-21 2001-08-21 Drinking water treating membrane system and drinking water preparing process Expired - Fee Related CN1199889C (en)

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Application Number Priority Date Filing Date Title
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CN1199889C true CN1199889C (en) 2005-05-04

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CN102351354B (en) * 2011-06-28 2013-06-19 北京爱生科技发展有限公司 Double-core direct drinking water system
CN103076328B (en) * 2012-12-31 2016-02-03 深圳市广前电力有限公司 The detection of membrane water-treating system biological pollutant and control method
CN103395952B (en) * 2013-08-20 2014-09-24 哈尔滨工业大学 Water processing apparatus with functions of ozone oxidation, bio-augmentation by tow levels of active carbon and ultraviolet sterilization
CN104402171B (en) * 2014-11-07 2016-10-05 连云港市自来水有限责任公司 A kind of reactor removing organic extracts from water and method
CN104591450B (en) * 2014-12-25 2016-05-18 太仓市微贯机电有限公司 A kind of running water low temperature Intelligent antibacterial pipe-line system
CN115340217A (en) * 2016-06-22 2022-11-15 江苏达格水务有限公司 Original ecological water treatment system and water treatment process
CN107792975A (en) * 2016-09-05 2018-03-13 康师傅饮品控股有限公司 Remove the method and device of ferrimanganic in drinking water

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