CN105198053B - A kind of impact sterilization method for being used to build secondary water-supply pipe-line system - Google Patents
A kind of impact sterilization method for being used to build secondary water-supply pipe-line system Download PDFInfo
- Publication number
- CN105198053B CN105198053B CN201510673191.2A CN201510673191A CN105198053B CN 105198053 B CN105198053 B CN 105198053B CN 201510673191 A CN201510673191 A CN 201510673191A CN 105198053 B CN105198053 B CN 105198053B
- Authority
- CN
- China
- Prior art keywords
- water
- building
- supply
- secondary water
- disinfectant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 18
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000000645 desinfectant Substances 0.000 claims abstract description 35
- 238000003860 storage Methods 0.000 claims abstract description 20
- 239000008399 tap water Substances 0.000 claims abstract description 9
- 235000020679 tap water Nutrition 0.000 claims abstract description 9
- 230000000249 desinfective effect Effects 0.000 claims abstract description 5
- 230000002906 microbiologic effect Effects 0.000 claims abstract description 5
- 238000011065 in-situ storage Methods 0.000 claims abstract description 4
- 230000014509 gene expression Effects 0.000 claims description 2
- 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
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 239000003651 drinking water Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 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
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000003911 water pollution Methods 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
A kind of impact sterilization method for being used to build secondary water-supply pipe-line system, belongs to water-treatment technology field.Municipal tap water is boosted or water storage device after enter building secondary water-supply standpipe, the high-concentrated sodium hypochlorite disinfectant being prepared in situ quantitatively is added in the outlet pipe of lifting or water storage device or in the initial end tap of building supply standpipe using measuring pump, disinfectant throwing amount and water-carrying capacity direct proportionality, decontaminant concentration control is more than 320mg.min/L in 3 4mg/L, CT values；Disinfectant continues to flow through building supply standpipe after being mixed with running water, user's tap to building supply standpipe end is discharged, and water velocity should be controlled in 0.1 0.2m/s.Impact after the completion of disinfecting process, rinse building supply standpipe with running water until the turbidity and microbiological indicator of water inlet and water outlet do not have significant change substantially.
Description
Technical field
The invention belongs to water-treatment technology field, more particularly to a kind of impact for being used to build secondary water-supply pipe-line system disappears
Malicious method.
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 exists
For transmission ＆ distribution to after in the range of one residential, sterilization agent content is generally relatively low, disinfectant easily occurs during secondary water-supply is built
Content phenomenon not up to standard, cause tap water quality that secondary pollution problem occurs.In the secondary confession of building up to standard of sterilization agent content
In water piping system, because sterilization agent content is relatively low, even if microbiological indicator is up to standard in water, biology that inner-walls of duct can also be formed
Film, the amount reproduction of heterotroph is caused, produce biological nitration effect and organic matter biodegradation effect, give building secondary water-supply
Water quality safety bring great threat, it is therefore necessary to the building secondary water-supply pipe-line system of one residential is taken necessary
Disinfectant measure.
Build secondary water supply system pass through frequently with disinfectant measure mainly mend throw disinfectant, with ensure tap water quality accord with
Close《Standards for drinking water quality》(GB5749-2006) 0.05mg/L chlorine residue requirement, generally benefit throwing dosage are relatively low, only slightly higher
In 0.05mg/L residual chlorine amounts；This low concentration mends throwing chlorine and established tube wall biomembrane in building secondary water-supply pipeline can not be produced
Raw significant inactivating efficacy, therefore even if the microbiological indicator of building secondary water-supply pipe-line system meets《Drinking Water health
Standard》(GB5749-2006) biological nitration effect and organic matter biodegradation effect, also often occurs so that building two
The biological safety of secondary water supply still cannot be ensured fully.
Chemical disinfection method is to kill the effective measures of pipeline biomembrane, and the disinfection way for adding high concentration disinfectant can be with
Significant inactivating efficacy is produced to secondary water-supply pipeline biomembrane, but adds high concentration disinfectant for a long time and can produce and largely disappear
Toxic byproduct, cause the chemical safety for building secondary water-supply to deteriorate, therefore how both effectively to kill building secondary water-supply pipeline
Biomembrane, it will not be significantly affected again caused by long-time sterilization is on the chemical safety of running water, be building secondary water-supply pipeline
System problem urgently to be resolved hurrily.
The present invention provides a kind of impact sterilization method for being used to build secondary water-supply pipe-line system, for building secondary water-supply
The characteristics of system is mostly branch network of pipes, and building secondary water-supply standpipe is relatively independent, by adding rushing for high concentration disinfectant in short-term
Hit sterilization method periodically to sterilize one residential and building supply pipeline, the life for forming building secondary water-supply inner-walls of duct
Thing film carries out impacting sterilization and inactivation, realize in a short time in the secondary water-supply pipeline of one residential tube wall microorganism it is effective
Control, reach the purpose of effectively prevention and control one residential secondary water-supply pipeline water pollution.
The content of the invention
1st, the present invention provides a kind of for building secondary water-supply pipe-line system, it is characterised in that including：Building supply is registered one's residence
Pipeline (1), lifting or water storage device (2), valve (3), flow detector (4), dosing pump (5), disinfectant storage distribution tank
(6) secondary water-supply standpipe (7) and user's tap (8), are built；Wherein building supply register one's residence pipeline (1), lifting or water storage device
(2), valve (3), flow detector (4), building secondary water-supply standpipe (7), user's tap (8) are sequentially connected, disinfectant storage
Distribution tank (6), dosing pump (5) and building secondary water-supply standpipe (7) top are sequentially connected.
2nd, using the impact sterilization method of the system, it is characterised in that comprise the following steps：Municipal tap water is through building
Water supply is registered one's residence, and by lifting or water storage device (2), entrance building secondary water-supply standpipe (7), disinfectant pass through dispensing to pipeline (1) afterwards
Measuring pump (5) is added to the top of building secondary water-supply standpipe (7), and building secondary water-supply is continued to flow through after being mixed with running water and is stood
Manage (7), to user's tap (8) discharge for building secondary water-supply standpipe (7) terminal；Impact after the completion of disinfecting process, with originally
Water rinses 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.
Using the above method, disinfectant, disinfectant throwing amount and building secondary water-supply standpipe are quantitatively added using measuring pump
Water-carrying capacity direct proportionality；The water velocity of building secondary water-supply standpipe should be controlled in 0.1-0.2m/s scopes, cl concn control
Make the validity in 3-4mg/L scopes, the concentration of disinfectant and the product CT values expression disinfecting process of hydraulic detention time, its CT
Value should be not less than 320mg min/L；Lifting or water storage device can be elevator pump, elevated tank, non-negative pressure water service system etc.；Disappear
It is 3-4mg/L decoction disinfectant liquids that concentration, which can be prepared in situ, in toxic agent storage distribution tank；The top of secondary water-supply standpipe is built, can be with
It is the outlet pipe sample tap of lifting or water storage device, or the initial end tap of building supply standpipe；Building secondary water-supply is stood
The end of pipe, can be that the terminal fire hose of building secondary water-supply standpipe is first-class.
The beneficial effects of the invention are as follows：
First, operating process of the invention is economical and practical, simple to operate, and the Preparation equipment of high concentration disinfectant can be mobile
Formula, disinfectant can be prepared in situ, and avoid building interior and install the potential safety hazard that secondary chlorination unit is brought.
2nd, the present invention is rinsed sterilization by adding high concentration disinfectant to building secondary water-supply pipeline, in pipeline
The secondary dirt of water quality that the killing that the tube wall biomembrane of formation is carried out, effectively prevention and control building secondary water-supply pipeline often occur
Dye problem.
Brief description of the drawings
Fig. 1, the method for the invention schematic diagram；
Wherein, 1- building water supplies register one's residence pipeline, 2- lifting or water storage device, 3- valves, 4- flow detectors, 5- dispensing meter
Measure pump, 6- disinfectants storage distribution tank, 7- building secondary water-supplies standpipe, 8- user's tap.
Embodiment
With reference to embodiment, the present invention will be further described, but the present invention is not limited to following examples.
Illustrate present embodiment with reference to Fig. 1, present embodiment is by adding high concentration disinfectant to building secondary water-supply pipe
Road carries out impact sterilization.In building a height of 8 floor, equipped with the residential housing of elevated tank, the secondary confession to one of unit
Water standpipe carries out impact sterilization.The disinfectant used is calcium hypochlorite, and compound concentration is 4mg/L disinfectant decoctions at the scene.It is first
First the inlet valve of unit secondary water-supply standpipe is closed, confirms that each floor user suspends with water, then in the kitchen of 8 buildings resident families
Connect on tap and add pipe with disinfectant, unlatching disinfectant adds measuring pump and disinfectant is added in secondary water-supply standpipe, together
When open Stall resident family indoor tap, control tap water outlet flow causes flow velocity in 0.1-0.2m/s scopes, to ensure that CT values should be greatly
In 320mg.min/L；The tap of each floor is opened in the process so that each user pipeline of registering one's residence also fully is disappeared
Poison.After 60min impact sterilizations are carried out, close the disinfectant of 8 buildings and add measuring pump, open secondary water-supply standpipe inlet valve,
Fully open 1-8 buildings tap carries out clear water and rinses 10min simultaneously, and sampling afterwards detects the tap water outlet water quality of 8 buildings and 1 building, surveys
The water quality parameter of the 8 buildings tap water outlets obtained is as follows：Turbidity is 0.5NTU, residual chlorine concentration 0.07mg/L, total number of bacteria are
55CFU/100mL, coliform do not detect；The water quality parameter of 1 building tap water outlet is as follows：Turbidity is 0.5NTU, residual chlorine concentration
Do not detected for 0.06mg/L, total number of bacteria 63CFU/100mL, coliform.So far the unit secondary water-supply standpipe is completed
Impact disinfecting process.
Claims (2)
1. a kind of impact sterilization method for being used to build secondary water-supply pipe-line system, described to be used to build secondary water-supply pipe-line system
Including：Building supply register one's residence pipeline (1), lifting or water storage device (2), valve (3), flow detector (4), dosing pump
(5), disinfectant storage distribution tank (6), building secondary water-supply standpipe (7) and user's tap (8)；Wherein building supply is registered one's residence pipeline
(1), lifting or water storage device (2), valve (3), flow detector (4), building secondary water-supply standpipe (7), user's tap (8)
It is sequentially connected, disinfectant storage distribution tank (6), dosing pump (5) and building secondary water-supply standpipe (7) top are sequentially connected；It is special
Sign is, comprises the following steps：Municipal tap water through building supply register one's residence pipeline (1) by lifting or water storage device (2) it is laggard
Entering to build secondary water-supply standpipe (7), disinfectant is added to the top of building secondary water-supply standpipe (7) by dosing pump (5),
Building secondary water-supply standpipe (7) is continued to flow through after being mixed with running water, to the user's fire hose for building secondary water-supply standpipe (7) terminal
Head (8) discharge；Impact after the completion of disinfecting process, rinse building secondary water-supply standpipe (7) with running water until water inlet and water outlet
The change of turbidity and microbiological indicator is no more than 10%；Wherein, disinfectant is quantitatively added using measuring pump, disinfectant throwing amount is with building
Build the water-carrying capacity direct proportionality of secondary water-supply standpipe；The water velocity of building secondary water-supply standpipe should be controlled in 0.1-
0.2m/s scopes, cl concn control disappear in 3-4mg/L scopes, the concentration of disinfectant and the product CT value expressions of hydraulic detention time
The validity of malicious process, its CT value should be not less than 320mgmin/L；It is 3- that decontaminant concentration, which is prepared in situ, in disinfectant storage distribution tank
4mg/L decoctions；The top of secondary water-supply standpipe (7) is built, is the outlet pipe sample tap of lifting or water storage device, or build two
The initial end tap of secondary water supply standpipe (7)；The end of building supply standpipe (7), it is the terminal for building secondary water-supply standpipe (7)
Tap.
2. method according to claim 1, it is characterised in that lifting or water storage device are elevator pump, elevated tank or without negative pressure
Water system.
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 CN105198053A (en) | 2015-12-30 |
| CN105198053B true CN105198053B (en) | 2018-04-03 |
Family
ID=54946088
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105198053B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (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
Also Published As
| Publication number | Publication date |
|---|---|
| CN105198053A (en) | 2015-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mandal et al. | A review on presence, survival, disinfection/removal methods of coronavirus in wastewater and progress of wastewater-based epidemiology | |
| Westrell et al. | A theoretical approach to assess microbial risks due to failures in drinking water systems | |
| Paleologos et al. | Post Covid-19 water and waste water management to protect public health and geoenvironment | |
| Erickson et al. | Water quality effects of intermittent water supply in Arraiján, Panama | |
| CN105198053B (en) | A kind of impact sterilization method for being used to build secondary water-supply pipe-line system | |
| Karikari et al. | Chlorine treatment effectiveness and physico-chemical and bacteriological characteristics of treated water supplies in distribution networks of Accra-Tema Metropolis, Ghana | |
| CN105442670B (en) | A kind of building water supply pipeline circulatory system and method ensured for secondary water-supply water quality | |
| US20230278897A1 (en) | Water energy matrix control | |
| Oesterholt et al. | Health risk assessment of non-potable domestic water supplies in the Netherlands | |
| Ji et al. | Where do we stand to oversee the coronaviruses in aqueous and aerosol environment? Characteristics of transmission and possible curb strategies | |
| CN202610882U (en) | Ultraviolet disinfection water tank device capable of preventing secondary pollution | |
| Jahne et al. | Enteric pathogen reduction targets for onsite non-potable water systems: A critical evaluation | |
| CN112978881A (en) | A sewage pipes detects disinfection system for public health room | |
| Kanno et al. | Sanitary Survey and drinking water quality performance of treat-ment plant: the case of Dilla Town, Ethiopia | |
| Han et al. | Exploration of optimal disinfection model based on groundwater risk assessment in disinfection process | |
| Gwenzi et al. | Human viral pathogens in the wastewater-source water-drinking water continuum: Evidence, health risks, and lessons for future outbreaks in low-income settings | |
| Rajagopalan et al. | Guide to simple sanitary measures for the control of enteric diseases | |
| Authority | Water quality report | |
| Spencer | Water quality in the distribution system: A review | |
| Al-Safady et al. | Disinfection process of water supply system in the Gaza strip between real practice and WHO limitations | |
| World Health Organization | Overview of greywater management Health considerations | |
| Guo et al. | Fate of Coronaviruses during the Wastewater Coagulation with Ferric Chloride | |
| US20040050798A1 (en) | Method and apparatus for ozone disinfection of liquid-carrying conduits | |
| Berger et al. | Water, drinking | |
| Haas | Development of disinfection guidelines for the installation and replacement of water mains |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 |