CN210505852U - High-quality water production system based on disinfection process optimization and byproduct control - Google Patents
High-quality water production system based on disinfection process optimization and byproduct control Download PDFInfo
- Publication number
- CN210505852U CN210505852U CN201921283476.5U CN201921283476U CN210505852U CN 210505852 U CN210505852 U CN 210505852U CN 201921283476 U CN201921283476 U CN 201921283476U CN 210505852 U CN210505852 U CN 210505852U
- Authority
- CN
- China
- Prior art keywords
- water
- chlorine dioxide
- pipeline
- generator
- quality
- 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.)
- Active
Links
Images
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a high-quality water production system based on disinfection technology optimization and accessory substance control, including clean water basin, constant voltage frequency conversion water supply installation and the user's of connection water pipeline pipe network, still be equipped with chlorine dioxide in the system and throw the generator, its characterized in that, chlorine dioxide is thrown and is thrown in the water pipeline and clean water basin, the pipeline between the constant voltage frequency conversion water supply installation in the generator is connected to the water pipeline before getting into the clean water basin, and still installs in proper order granule active carbon canister and ultrafiltration membrane pond in the water pipeline before getting into the clean water basin. The water quality treated by the system of the utility model can stably reach the sanitary standard of drinking water (GB5749-2006), wherein, the chlorite as the by-product of chlorine dioxide disinfection is less than 0.3mg/L, and the chlorate is less than 0.15 mg/L.
Description
Technical Field
The utility model relates to a municipal water supply treatment technical field, concretely relates to disinfection technology optimization and accessory substance control technical field of the high-quality water works of advanced treatment combined technology.
Background
Along with the development of urban construction, people's standard of living improves, the user is stricter to the quality of water requirement of running water, this has caused very big pressure for traditional water works, because many-sided reasons such as pipeline transport, some users still install the filter additional in the water terminal region and carry out further processing to the running water, but because the filter quality is uneven, use the maintenance standard difference, can't accomplish the quality of water safety of guarantee water completely, and traditional water treatment mode also can't reach people to the needs of high-quality water. In a traditional tap water treatment system of a medium and small water plant, the system generally comprises a water taking system, flocculation, sedimentation, quartz sand filtration, a clean water tank, a water delivery system and the like, and water is supplied to users through a network. The water plant adopting the traditional process and the composite chlorine dioxide disinfection generally has the risk of overproof disinfection byproducts, and mainly has the following defects:
1. the fluctuation of the residual chlorine dioxide in the effluent is larger
The main reasons are ①, inaccurate control mode, for example, the liquid medicine is not distributed uniformly by adopting a 'one-to-two' adding mode, ②, inaccurate control signal, ③ equipment metering is inaccurate, and the like.
2. The addition of the mixed liquid influences the high-quality water quality
There is no gas-liquid separation, and the residual liquid is added into the effluent together, resulting in higher disinfection by-products and affecting the quality of the effluent.
3. The reaction kettle of the generator is single-stage, the temperature is normal, the raw material conversion is incomplete
Chlorine dioxide is not pure, and can also result in higher levels of chlorate and chlorite as disinfection byproducts.
4. The daily operation is more complicated, and the management requirement is high
The raw materials belong to dangerous chemicals or easily prepared drugs, and some materials need to be registered and put on record in public security organs; raw materials need to be prepared by factory personnel; the requirement on the skill level and the management capability of operators is high.
In view of the above circumstances, it is necessary to find a new treatment process system for a water works, which replaces the conventional tap water terminal treatment process, controls the disinfection by-products, and provides high-quality factory water to meet the requirements.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is to solve the prior art not enough as: the method solves the problems of risk of byproducts in the chlorine dioxide disinfection effluent of the water works, operation and maintenance of chlorine dioxide equipment and the like, and provides a scheme of a water treatment and reconstruction system of medium and small water works, which fully ensures the water quality safety of drinking water, is suitable for reconstruction of medium and small water works of the traditional process or the advanced treatment process, has perfect extension process and can effectively reduce the cost.
The utility model discloses an adopt following technical solution to realize above-mentioned purpose:
a high-quality water production system based on disinfection process optimization and byproduct control comprises a clean water tank connected with a tap water pipeline, a constant-pressure variable-frequency water supply device and a pipe network connected with users, and is further provided with a high-purity chlorine dioxide dosing generator.
As further illustration of the scheme, the generator adopts a two-stage double-temperature reactor, the chlorine dioxide is prepared on site by adopting a sucrose method, the raw materials are composite sodium chlorate and composite sodium bisulfate, and gas-liquid separation is carried out.
Furthermore, the chlorine dioxide adding generator is also connected with a control device, an electromagnetic flowmeter is arranged in the total water production pipeline of the ultrafiltration membrane, and the raw material adding amount of the chlorine dioxide adding generator is controlled through the signal feedforward of the electromagnetic flowmeter, so that the adding amount of chlorine dioxide is controlled; and a residual chlorine dioxide monitoring device is arranged in a factory water pipeline and is electrically connected with a control device, and the control device plays a role in alarming or feedback control of the adding amount of the chlorine dioxide adding generator through the residual chlorine dioxide content in water monitored by the residual chlorine dioxide monitoring device.
Furthermore, the constant-pressure variable-frequency water supply device is formed by sequentially connecting a pressure sensor, a water inlet valve, a water supply pump and a water outlet valve on a plurality of pipelines.
Furthermore, a circulating water return pipeline is connected between the water outlet pipeline of the constant-pressure variable-frequency water supply device and the pipelines between the granular activated carbon filter tank and the ultrafiltration membrane pool.
The utility model adopts the beneficial effect that above-mentioned technical solution can reach is:
adopt above-mentioned structure the utility model discloses an activated carbon-membrane degree of depth preliminary treatment, chlorine dioxide generator are preferred and management etc. control disinfection accessory substance risk, establish the sterile high-quality drinking water demonstration engineering of activated carbon-membrane + high-purity chlorine dioxide:
(1) the preferred management and dosage control technology of the chlorine dioxide generator comprises the following steps: by preferably selecting the chlorine dioxide generator, the total water yield of the membrane and the residual chlorine dioxide amount of the factory water are combined, the chlorine dioxide adding amount is reasonably controlled, the disinfection cost is greatly reduced, and a high-quality drinking water demonstration project is constructed.
(2) Advanced treatment technology of drinking water: the organic pollutants and microorganisms are further removed through the adsorption of the granular activated carbon filter tank and the filtration of the ultrafiltration membrane, the consumption of chlorine dioxide in the subsequent disinfection process is reduced, and the generation of byproducts is reduced.
Actual treatment effect (water quality reaching standard, pollutant removal rate and annual pollution load reduction condition): the quality of tap water in an engineering water plant and the water supply range thereof is demonstrated to be stable and reaches the sanitary standard for drinking water (GB5749-2006), wherein the chlorite serving as a disinfection by-product of chlorine dioxide is less than 0.3mg/L, and the chlorate is less than 0.15 mg/L.
(3) The utility model discloses set up a plurality of chlorine dioxide and throw the point of adding, it can select as required, and accommodation is wide, puts in more evenly, and can automatic control chlorine dioxide throw the volume of adding, and is more safe.
Drawings
FIG. 1 is a schematic flow diagram of a prior art system;
FIG. 2 is a schematic view of the system flow of the present invention;
FIG. 3 is a schematic view of a pipeline structure of a part of a conventional dosing system;
FIG. 4 is a schematic view of a pipeline portion of the dosing system of the present invention.
Description of reference numerals: 1. a tap water inlet pipeline 2, a clean water tank 3, a constant-pressure variable-frequency water supply device 31(31 '), a water inlet valve 32, a water delivery pump 33, a water outlet valve 4, a chlorine dioxide adding point 4' and a chlorine dioxide adding point.
Detailed Description
In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 2 and 4, the utility model discloses a high-quality water production system based on disinfection technology optimization and accessory substance control, including the clean water basin 2 of connecting water pipeline 1, constant voltage frequency conversion water supply installation 3 and connection user's pipe network, still be equipped with chlorine dioxide in the system and throw out generator 4 (4'), chlorine dioxide is thrown and is thrown in generator 4 is connected to the pipeline between the clean water basin 2, the constant voltage frequency conversion water supply installation 3 and in the water pipeline before getting into the clean water basin, is provided with a plurality of points of puting in altogether, and still adds in proper order in the water pipeline before getting into clean water basin 2 and is equipped with granular activated carbon canister and ultrafiltration membrane pool (not shown in the figure). Constant voltage frequency conversion water supply installation 3 is connected gradually by pressure sensor, water intaking valve 31, water feeding pump 32 and outlet valve 33 on a plurality of pipelines and constitutes, it has the circulation return water pipeline still to connect between the pipeline between 3 outlet pipe ways of constant voltage frequency conversion water supply installation and the granule active carbon canister, the ultrafiltration membrane pond, and this embodiment, the clean water basin is 2, and 3 pipelines of constant voltage frequency conversion water supply installation have 4.
The generator of the utility model adopts a two-stage double-temperature reactor, adopts a sucrose method to prepare chlorine dioxide on site, adopts the raw materials of composite sodium chlorate and composite sodium bisulfate, and is provided with a gas-liquid separation device. The chlorine dioxide adding generator is also connected with a control device, an electromagnetic flowmeter is arranged in the total water production pipeline of the ultrafiltration membrane, and the raw material adding amount of the chlorine dioxide adding generator is controlled through the signal feedforward of the electromagnetic flowmeter, so that the chlorine dioxide adding amount is controlled; in the embodiment, the residual chlorine dioxide monitoring device and the control device are applied in the prior art, for example, the residual chlorine dioxide monitoring device and the control device are disclosed in the urban water supply network water quality and water quantity online monitoring system published in 2015 9 and 05 days on the internet at https:// wenku.baidu.com/view/d384c9b97375a4178768f43. html, and the applicant does not detail here.
It is following to the utility model discloses a further explanation is made to the improvement point, the utility model discloses an addition system promotes to reform transform and includes:
(1) the one-to-two adding is changed into one-to-one adding, chlorine dioxide in factory water is stable (0.15-0.25 mg/L), enough disinfection contact time is guaranteed, meanwhile, due to the fact that adding points are added, adding can be conducted before a clean water tank, chlorine dioxide is added uniformly, and moreover, one or two adding points can be added or closed according to needs at multiple adding points, and therefore the change state of tap water in a large range can be adapted.
(2) Generator optimization updating: a gas-liquid separation device is arranged to ensure high-quality effluent, and can be produced by Shijiazhuang Ruihui company;
the disinfection by-products of factory water are obviously reduced, and chlorate (0.02-0.13mg/L) and chlorite (0.13-0.25mg/L) are lower than 0.3 mg/L. The disinfection effect is improved, and most of the total number of the colonies on the effluent are not detected.
(3) Generator optimization updating: the generator adopts a two-stage double-temperature reactor, so that the conversion rate is improved
The raw material conversion rate is detected to reach 95% or more, and the purity of chlorine dioxide reaches 98% or more.
(4) Optimizing operation flow and improving management level
And (4) lifting and modifying the adding system, namely implementing a safety management system, implementing '5 double management' of double receiving and dispatching, double accounting, double locking, double transportation and double use, and perfecting an operation instruction book.
The utility model discloses a generator optimization updates still lies in: dispensing is avoided, and the raw materials are composite sodium chlorate and composite sodium bisulfate without preparation; residual liquid is separated, and management is simple. Since the on-site production of chlorine dioxide by the sucrose process is prior art, prior patent applications are also disclosed, for example, in the patent application entitled high purity chlorine dioxide production process based on sugar manufacturing process, and the applicant does not describe here.
(5) Chlorine dioxide generators are preferred
① it can be selected from multiple stage reactors, and the temperature can be raised step by step to ensure the raw materials to react sufficiently and improve the conversion rate, the two stage double temperature reactor can be made of corresponding product produced by Sichuan Qili green source water treatment technology limited company, and can be purchased from the market, and the previous patent documents also disclose such structure as patent application with 201420410384 and named as a double temperature reactor for chlorine dioxide generator.
② a flowmeter and a metering pump with corrosion resistance and high sensitivity are adopted to ensure accurate dosing amount;
③ a gas-liquid separation device is arranged between the dosing system and the water pipeline, and the incompletely converted raw materials do not enter the water body;
④ is provided with a residual liquid collecting device.
The utility model discloses an actual operation economic cost index
Before transformation, the cost of the raw materials of the chlorine dioxide is higher, 30 yuan/Kg of sodium chlorite and 4 yuan/Kg of hydrochloric acid; the modified two raw materials are compounded with sodium chlorate and sodium bisulfate at a concentration of 2.3 yuan/Kg. The cost of the disinfectant for the factory water plant is reduced from 0.0256 yuan/ton to 0.0067 yuan/ton, and the reduction amplitude reaches 74 percent.
Social analysis, the utility model discloses effective control the disinfection accessory substance, showing and improving the stability of leaving the factory water surplus chlorine dioxide, further improved the quality of drinking water, provide technical support for solving the sterile well small water plant problem of similar chlorine dioxide, had good demonstration effect.
The demonstration scale of the transformation project of the utility model is 1.5 ten thousand meters3And d, the direct beneficial population reaches 2.5 million people.
The results show that: in the example, the technology of actually transforming and operating the high-quality drinking water disinfected by the activated carbon-membrane and the high-purity chlorine dioxide in the water plant is demonstrated that the water quality of tap water in the engineering water plant and the water supply range thereof stably meets the water quality requirement of the national standard sanitary Standard for Drinking Water (GB5749-2006), and the chlorite serving as a disinfection by-product of the chlorine dioxide is less than 0.3mg/L and the chlorate is less than 0.15 mg/L.
The active carbon-ultrafiltration membrane filtration advanced water treatment technology and the chlorine dioxide disinfection byproduct control technology are applied in demonstration engineering, disinfection byproducts are effectively controlled, chlorite is less than 0.3mg/L, chlorate is less than 0.15mg/L, the safety problem that the disinfection byproducts exceed the standard is solved, the quality safety of the water leaving the factory is obviously improved when the water leaving the factory stably meets the requirements of sanitary Standard for Drinking Water (GB5749-2006), the safety guarantee level of the drinking water is further improved, demonstration and reference are provided for the transformation of water plants of the same type, and the method has good popularization and application prospects.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.
Claims (5)
1. The high-quality water production system based on disinfection process optimization and byproduct control comprises a clean water tank connected with a tap water pipeline, a constant-pressure variable-frequency water supply device and a pipe network connected with a user, and is further provided with a chlorine dioxide adding generator.
2. A high quality water production system based on disinfection process optimization and byproduct control as claimed in claim 1 wherein said generator employs a two stage dual temperature reactor, chlorine dioxide is prepared on-site by sucrose process, raw materials are composite sodium chlorate and composite sodium bisulfate, and is arranged in a gas-liquid separation device.
3. The system for producing high-quality water based on sterilization process optimization and byproduct control according to claim 1, wherein the constant-pressure variable-frequency water supply device is composed of a plurality of pressure sensors, a water inlet valve, a water supply pump and a water outlet valve which are connected in sequence.
4. The system for producing high-quality water based on disinfection process optimization and byproduct control as claimed in claim 1, wherein a circulating water return pipeline is further connected between the water outlet pipeline of the constant-pressure variable-frequency water supply device and the pipelines between the granular activated carbon filter tank and the ultrafiltration membrane tank.
5. The high-quality water production system based on disinfection process optimization and byproduct control as claimed in claim 1, wherein the chlorine dioxide dosing generator is further connected with a control device, an electromagnetic flow meter is arranged in a total water production pipeline of the ultrafiltration membrane, and the raw material addition amount of the chlorine dioxide dosing generator is controlled through signal feedforward of the electromagnetic flow meter, so that the chlorine dioxide dosing amount is controlled; the device is characterized in that a residual chlorine dioxide monitoring device is arranged in a factory water pipeline and is electrically connected with a control device, and the control device plays a role in alarming or feedback control of the adding amount of the chlorine dioxide adding generator through the residual chlorine dioxide content in water monitored by the residual chlorine dioxide monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283476.5U CN210505852U (en) | 2019-08-08 | 2019-08-08 | High-quality water production system based on disinfection process optimization and byproduct control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283476.5U CN210505852U (en) | 2019-08-08 | 2019-08-08 | High-quality water production system based on disinfection process optimization and byproduct control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210505852U true CN210505852U (en) | 2020-05-12 |
Family
ID=70588403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921283476.5U Active CN210505852U (en) | 2019-08-08 | 2019-08-08 | High-quality water production system based on disinfection process optimization and byproduct control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210505852U (en) |
-
2019
- 2019-08-08 CN CN201921283476.5U patent/CN210505852U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107758927A (en) | A kind of advanced oxidation drinking water water preparation process optimizes checking system | |
| CN202465434U (en) | Ultraviolet and ozone combined disinfecting device for recycling reclaimed water | |
| CN106007104A (en) | Mobile unpowered drinking water device and method for treating drinking water by using device | |
| CN104556474A (en) | Water purification process and device of water supply plant | |
| CN110294530B (en) | Sewage anaerobic anti-scaling interferon and preparation method thereof | |
| CN213771448U (en) | Intelligent full-automatic medical wastewater disinfection equipment | |
| CN205472644U (en) | Energy -efficient many functional type chlorine dioxide generator disinfecting equipment | |
| CN210505852U (en) | High-quality water production system based on disinfection process optimization and byproduct control | |
| CN107055947B (en) | Electrolytic enhanced membrane bioreactor and method for treating wastewater by using same | |
| CN104230070A (en) | Water treatment method and system for preparing small-molecular water | |
| CN104591451B (en) | A kind of tap water purifying processing system | |
| CN114991257B (en) | Movable quality-based water supply device based on brackish water source and water supply method thereof | |
| CN115304205A (en) | Water purification equipment and method | |
| CN210176678U (en) | Landfill leachate treatment system | |
| CN111877456B (en) | Indoor reclaimed water recycling system and method for public building | |
| CN201495121U (en) | Multifunctional chlorine dioxide disinfection device | |
| CN201598214U (en) | Ionized water treating system | |
| CN105060616B (en) | Waste water purifying treatment system | |
| CN104211262A (en) | Ecological treatment system for sewage | |
| CN215479899U (en) | Process system for sterilizing reclaimed water demineralized water by adopting total internal reflection ultraviolet rays | |
| CN111877454B (en) | Indoor reclaimed water recycling device for public building | |
| CN210595683U (en) | Medical wastewater treatment device | |
| CN1321921C (en) | Baffle Sludge reactor with oligachaeta worm reduction | |
| CN217651078U (en) | Zero-concentrated-liquid leachate advanced treatment device for waste incineration plant | |
| CN203890091U (en) | Device for removing ronidazole in water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |