CN105198053A - Impact disinfection method for building secondary water supply pipeline system - Google Patents
Impact disinfection method for building secondary water supply pipeline system Download PDFInfo
- Publication number
- CN105198053A CN105198053A CN201510673191.2A CN201510673191A CN105198053A CN 105198053 A CN105198053 A CN 105198053A CN 201510673191 A CN201510673191 A CN 201510673191A CN 105198053 A CN105198053 A CN 105198053A
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- China
- Prior art keywords
- water
- building
- secondary water
- supply
- building secondary
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 17
- 239000008399 tap water Substances 0.000 claims abstract description 16
- 235000020679 tap water Nutrition 0.000 claims abstract description 16
- 239000003206 sterilizing agent Substances 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 18
- 230000001954 sterilising effect Effects 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 4
- 230000002906 microbiologic effect Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 239000000645 desinfectant Substances 0.000 abstract description 7
- 230000000813 microbial effect Effects 0.000 abstract description 7
- 239000005708 Sodium hypochlorite Substances 0.000 abstract 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 235000020188 drinking water Nutrition 0.000 description 3
- 239000003651 drinking water Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 230000000415 inactivating effect Effects 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Domestic Plumbing Installations (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
An impact disinfection method for a building secondary water supply pipeline system belongs to the technical field of water treatment. Municipal tap water enters a building secondary water supply stand pipe after passing through a lifting or water storing device, a high-concentration sodium hypochlorite disinfectant prepared on site is quantitatively added into a water outlet pipe of the lifting or water storing device or a tap at the initial end of the building secondary water supply stand pipe by a metering pump, the addition of the disinfectant is directly proportional to water flow rate, the concentration of the disinfectant is controlled to be 3-4 mg/L, and the CT value is larger than 320 mg.min/L. The disinfectant and the tap water continually flow through the building secondary water supply stand pipe and are discharged from a user tap at the tail end of the building secondary water supply stand pipe after being mixed with each other, and the water flow rate is controlled to be 0.1-0.2 m/s. After impact disinfection, the building secondary water supply stand pipe is flushed by the tap water till the turbidities and the microbial indicators of inlet water and outlet water are almost not changed obviously.
Description
Technical field
The invention belongs to water-treatment technology field, particularly a kind of impact sterilization method for building secondary water-supply tubing system.
Background technology
The water quality safety guarantee of urban water supply end is the important step of drinking water safety safeguard work.Urban pipe network water within the scope of transmission & distribution to one residential after, sterilizing agent content is general lower, very easily occurs the phenomenon that sterilizing agent content is not up to standard, cause tap water quality generation secondary pollution problem in building secondary water-supply process.In the building secondary water-supply tubing system that sterilizing agent content is up to standard, because sterilizing agent content is lower, even if microbiological indicator is up to standard in water, the microbial film that inner-walls of duct also can be formed, cause the amount reproduction of heterotrophic bacterium, produce biological nitration effect and organic matter biodegradation effect, bring great threat to the water quality safety of building secondary water-supply, be therefore necessary to take necessary disinfectant measure to the building secondary water-supply tubing system of one residential.
The disinfectant measure that building secondary water supply system often adopts mainly mends throwing sterilizing agent, with the 0.05mg/L chlorine residue requirement ensureing that tap water quality meets " drinking water sanitary standard " (GB5749-2006), it is lower that usual benefit throws dosage, only a little higher than 0.05mg/L residual chlorine amount; This lower concentration mends throwing chlorine cannot produce significant inactivating efficacy to established tube wall microbial film in building secondary water-supply pipeline; even if the microbiological indicator of therefore building secondary water-supply tubing system meets " drinking water sanitary standard " (GB5749-2006); also often there will be biological nitration effect and organic matter biodegradation effect, make the biological safety building secondary water-supply still can not get abundant guarantee.
Chemical disinfection method kills the biomembranous effective measure of pipeline, the disinfection way adding high density sterilizing agent can produce significant inactivating efficacy to secondary water-supply pipeline microbial film, but add high density sterilizing agent for a long time and can produce a large amount of disinfection byproduct (DBP), the chemical safety of building secondary water-supply is caused to worsen, therefore building secondary water-supply pipeline microbial film how had both effectively been killed, can not cause remarkably influenced because sterilizing for a long time to the chemical safety of tap water again, be a building secondary water-supply tubing system difficult problem urgently to be resolved hurrily.
The invention provides a kind of impact sterilization method for building secondary water-supply tubing system, branch network of pipes mostly is for building secondary water supply system, the feature that building secondary water-supply standpipe is relatively independent, by the impact sterilization method adding high density sterilizing agent in short-term, regularly sterilized in one residential and building supply pipeline, impact sterilization and deactivation are carried out to the microbial film that building secondary water-supply inner-walls of duct is formed, realize the effective control to tube wall microorganism in the secondary water-supply pipeline of one residential at short notice, reach the object of effective prevention and corntrol one residential secondary water-supply pipeline water pollution.
Summary of the invention
1, the invention provides one for building secondary water-supply tubing system, it is characterized in that, comprising: building supply register one's residence pipeline (1), to promote or tank (6), building secondary water-supply standpipe (7) and user's water tap (8) are joined in water storage device (2), valve (3), flow detector (4), dosing pump (5), sterilizing agent storage; Wherein building supply register one's residence pipeline (1), to promote or water storage device (2), valve (3), flow detector (4), building secondary water-supply standpipe (7), user's water tap (8) connects successively, sterilizing agent storage is joined tank (6), dosing pump (5) and is built secondary water-supply standpipe (7) top and is connected successively.
2, the impact sterilization method of described system is applied, it is characterized in that, comprise the following steps: pipeline (1) is registered one's residence by promoting or entering building secondary water-supply standpipe (7) after water storage device (2) through building supply in municipal tap water, sterilizing agent is added to the top of building secondary water-supply standpipe (7) by dosing pump (5), continue to flow through building secondary water-supply standpipe (7) after mixing with tap water, the user's water tap (8) to building secondary water-supply standpipe (7) terminal is discharged; After impact sterilizing process completes, with tap water building secondary water-supply standpipe (7) until water inlet is no more than 10% with the turbidity of water outlet and the change of microbiological indicator.
Utilize aforesaid method, adopt volume pump quantitatively to add sterilizing agent, sterilizing agent throwing amount and the discharge direct proportionality building secondary water-supply standpipe; The flow velocity of building secondary water-supply standpipe should control in 0.1-0.2m/s scope, and cl concn controls in 3-4mg/L scope, and the concentration of sterilizing agent and the product CT value of hydraulic detention time represent the validity of sterilizing process, and its CT value should be not less than 320mgmin/L; Lifting or water storage device can be lift pump, elevated tank, non-negative pressure water service system etc.; It can in situ preparation concentration be 3-4mg/L liquid disinfectant liquid that tank is joined in sterilizing agent storage; The top of building secondary water-supply standpipe can be the rising pipe thief hole of lifting or water storage device, or the initial end water tap of building supply standpipe; The end of building secondary water-supply standpipe can be that the terminal fire hose of building secondary water-supply standpipe is first-class.
The invention has the beneficial effects as follows:
One, operating process of the present invention is economical and practical, simple to operate, and the Preparation equipment of high density sterilizing agent can be portable, and sterilizing agent can in situ preparation, avoids building interior and installs the potential safety hazard that secondary chlorinating equipment brings.
Two, the present invention carries out irrigation and disinfection by adding high density sterilizing agent to building secondary water-supply pipeline, and that carries out the tube wall microbial film formed in pipeline kills, the water pollution once again problem that effective prevention and corntrol building secondary water-supply pipeline often occurs.
Accompanying drawing explanation
Fig. 1, the method for the invention schematic diagram;
Wherein, 1-building water supply register one's residence pipeline, 2-promotes or water storage device, 3-valve, 4-flow detector, 5-dosing pump, tank is joined in the storage of 6-sterilizing agent, 7-builds secondary water-supply standpipe, 8-user's water tap.
Embodiment
Below in conjunction with embodiment, the present invention will be further described, but the present invention is not limited to following examples.
Composition graphs 1 illustrates present embodiment, and present embodiment carries out impact sterilization by adding high density sterilizing agent to building secondary water-supply pipeline.High in building be 8 floor, be furnished with in the residential housing of elevated tank, to the secondary water-supply standpipe of one of them unit carry out impact sterilization.The sterilizing agent adopted is Losantin, and compound concentration is 4mg/L sterilizing agent liquid at the scene.First the inlet valve of unit secondary water-supply standpipe is closed, confirm each floor user time-out water, then connect in the kitchen faucet of 8th floors resident families and join sterilizing agent and add pipe, unlatching sterilizing agent adds volume pump and is added to by sterilizing agent in secondary water-supply standpipe, open the indoor tap of Stall resident family simultaneously, controlling tap water outlet flow makes flow velocity in 0.1-0.2m/s scope, ensures that CT value should be greater than 320mg.min/L; The water tap of each floor is opened in the process, makes each user pipeline of registering one's residence also obtain sufficiently sterilised.After carrying out 60min impact sterilization, the sterilizing agent of closing 8th floors adds volume pump, open secondary water-supply standpipe inlet valve, all open 1-8 building tap simultaneously and carry out clear water flushing 10min, sample the tap water outlet water quality of 8th floor, detection and 1st floor afterwards, the water quality parameter of the 8th floors tap water outlets recorded is as follows: turbidity is 0.5NTU, residual chlorine concentration is 0.07mg/L, total plate count is 55CFU/100mL, coliform does not detect; The water quality parameter of 1st floor tap water outlet is as follows: turbidity is 0.5NTU, residual chlorine concentration is 0.06mg/L, total plate count is 63CFU/100mL, coliform does not detect.So far the impact sterilizing process of this unit secondary water-supply standpipe is completed.
Claims (6)
1. one kind for building secondary water-supply tubing system, it is characterized in that, comprising: building supply register one's residence pipeline (1), to promote or tank (6), building secondary water-supply standpipe (7) and user's water tap (8) are joined in water storage device (2), valve (3), flow detector (4), dosing pump (5), sterilizing agent storage; Wherein building supply register one's residence pipeline (1), to promote or water storage device (2), valve (3), flow detector (4), building secondary water-supply standpipe (7), user's water tap (8) connects successively, sterilizing agent storage is joined tank (6), dosing pump (5) and is built secondary water-supply standpipe (7) top and is connected successively.
2. application rights requires the impact sterilization method of system described in 1, it is characterized in that, comprise the following steps: pipeline (1) is registered one's residence by promoting or entering building secondary water-supply standpipe (7) after water storage device (2) through building supply in municipal tap water, sterilizing agent is added to the top of building secondary water-supply standpipe (7) by dosing pump (5), continue to flow through building secondary water-supply standpipe (7) after mixing with tap water, the user's water tap (8) to building secondary water-supply standpipe (7) terminal is discharged; After impact sterilizing process completes, with tap water building secondary water-supply standpipe (7) until water inlet is no more than 10% with the turbidity of water outlet and the change of microbiological indicator.
3. method according to claim 2, is characterized in that, adopts volume pump quantitatively to add sterilizing agent, sterilizing agent throwing amount and the discharge direct proportionality building secondary water-supply standpipe; The flow velocity of building secondary water-supply standpipe should control in 0.1-0.2m/s scope, and cl concn controls in 3-4mg/L scope, and the concentration of sterilizing agent and the product CT value of hydraulic detention time represent the validity of sterilizing process, and its CT value should be not less than 320mgmin/L.
4. method according to claim 2, is characterized in that, lifting or water storage device are lift pump, elevated tank or non-negative pressure water service system.
5. method according to claim 2, is characterized in that, it is 3-4mg/L liquid that tank in situ preparation decontaminant concentration is joined in sterilizing agent storage.
6. method according to claim 2, is characterized in that, the top of building secondary water-supply standpipe (7), is the rising pipe thief hole of lifting or water storage device, or the initial end water tap of building secondary water-supply standpipe (7); The end of building supply standpipe (7) is the terminal water tap of building secondary water-supply standpipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510673191.2A CN105198053B (en) | 2015-10-18 | 2015-10-18 | A kind of impact sterilization method for being used to build secondary water-supply pipe-line system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510673191.2A CN105198053B (en) | 2015-10-18 | 2015-10-18 | A kind of impact sterilization method for being used to build secondary water-supply pipe-line system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105198053A true CN105198053A (en) | 2015-12-30 |
| CN105198053B CN105198053B (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510673191.2A Expired - Fee Related CN105198053B (en) | 2015-10-18 | 2015-10-18 | A kind of impact sterilization method for being used to build secondary water-supply pipe-line system |
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| Country | Link |
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| CN (1) | CN105198053B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138054A (en) * | 2018-10-23 | 2019-01-04 | 包头市融通水业有限责任公司 | Direct drinking pipe network wash sterilizes mobile device |
| CN114288441A (en) * | 2021-12-27 | 2022-04-08 | 小洖科技(苏州)有限公司 | Method for cleaning and disinfecting water supply pipeline |
| CN115745106A (en) * | 2022-12-01 | 2023-03-07 | 山东电力建设第三工程有限公司 | Disinfection process of seawater desalination device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202390882U (en) * | 2011-12-23 | 2012-08-22 | 上海市政工程设计研究总院（集团）有限公司 | Safe water supply system for secondary water supply |
| CN203095700U (en) * | 2013-03-05 | 2013-07-31 | 河北科技大学 | Device for adding chlorine dioxide to deep-well pump water supply system |
| CN203095692U (en) * | 2013-03-05 | 2013-07-31 | 河北科技大学 | Secondary water supply treatment device by chlorine dioxide |
-
2015
- 2015-10-18 CN CN201510673191.2A patent/CN105198053B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202390882U (en) * | 2011-12-23 | 2012-08-22 | 上海市政工程设计研究总院（集团）有限公司 | Safe water supply system for secondary water supply |
| CN203095700U (en) * | 2013-03-05 | 2013-07-31 | 河北科技大学 | Device for adding chlorine dioxide to deep-well pump water supply system |
| CN203095692U (en) * | 2013-03-05 | 2013-07-31 | 河北科技大学 | Secondary water supply treatment device by chlorine dioxide |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138054A (en) * | 2018-10-23 | 2019-01-04 | 包头市融通水业有限责任公司 | Direct drinking pipe network wash sterilizes mobile device |
| CN109138054B (en) * | 2018-10-23 | 2024-02-06 | 内蒙古融通水务有限责任公司 | Direct drinking water pipe network flushing and sterilizing mobile equipment |
| CN114288441A (en) * | 2021-12-27 | 2022-04-08 | 小洖科技(苏州)有限公司 | Method for cleaning and disinfecting water supply pipeline |
| CN115745106A (en) * | 2022-12-01 | 2023-03-07 | 山东电力建设第三工程有限公司 | Disinfection process of seawater desalination device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105198053B (en) | 2018-04-03 |
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Granted publication date: 20180403 |