Water is the source of life and the foundation of health
With the acceleration of urbanization and the improvement of residents' quality of life, the disadvantages of traditional water supply models in the "last mile" link are becoming increasingly apparent——Problems such as rust of old pipe networks, pollution of secondary water supply facilities, and unstable water quality directly affect the safety of drinking water for residents.
Recently, there have been water quality incidents in some areas, and from the reason on the notice, due to the change of hydraulic conditions in the pipeline, the accumulation in the pipeline has peeled off, which is one of the main reasons for the turbid water turbidity and particulate matter on the user's side, exposing the weak links of terminal water supply management. The water supply model of Zhejiang Tianxingjian Water Co., Ltd.'s "second-order water plant" innovatively sinks the deep treatment link to the community terminal, with the "municipal water source, ceramic membrane deep purification, closed-loop circulation system" as the core, directly connected to the household pipeline, completely avoiding the risk of secondary pollution.
The pain point of traditional secondary water supply: the safety defense line needs to be strengthened urgently
In the traditional water supply system, tap water is transported from the water plant to the user's home through a long pipe network and secondary water supply facilities (such as community water tanks, pressurized pumping stations, etc.). In this process, water quality may face multiple threats:
Water storage facility pollution:Old water tanks are prone to bacteria, algae, and even foreign substances;
Metal pipeline rust and PE pipe precipitation of organic matter, resulting in heavy metal and microplastic pollution;
After long-distance transportation, the concentration of disinfectants decreases and the risk of microorganisms increases;
Excess residual chlorine:long-term excessive residual chlorine leads to pipe wall corrosion and pipe wall adhesion falls off;
emergency repair of the water pipe network, causing sewage backflow;
Sudden changes in water quality:Conventional water treatment processes cannot be effectively treated;
Changes in different water sources cause changes in water quality in the pipe network or changes in hydraulic conditions in the pipeline, resulting in the spalling of accumulated debris in the pipeline.
It is difficult to detect abnormal water quality in time during manual inspection, and the emergency response efficiency is low.
Pipeline pollution risks have the characteristics of multiple links and concealment, which make the "last mile" the weakest link in water quality safety, and the traditional "inspection instead of prevention" model is no longer enough to deal with it. By sinking deep treatment into the community, combined with ceramic membranes and unattended technologies, the "second-order water plant" can systematically resolve various risks from water sources to faucets, which is the only way to drink water safety in the future.
Ceramic membrane technology: the "safety armor" of the water supply of the second-order water plant
"Second-order water plant" refers to a new type of water supply node in the urban water supply system that integrates deep treatment technology on the basis of traditional secondary pressurization facilities, and its core feature is to realize the upgrade from "pressure retention water supply" to "high-quality water supply" through the dual functional reconstruction of "pressure improvement and water quality purification". The facility is usually set up at key nodes or community terminals of the water distribution pipe network, using membrane filtration (such as ceramic ultrafiltration), advanced oxidation and other processes, while completing the secondary pressurization, targeted removal of microorganisms, organic matter and trace pollutants in the water, so that the effluent water quality is better than the current drinking water hygiene standards (GB5749-2022), forming a synergistic solution for pressure guarantee and water quality improvement. Its technical essence is to extend the water treatment process from centralized water plants to distributed terminals, which is an intelligent and high-quality evolution form of the traditional secondary water supply system.
The core of the water supply model of the "second-order water plant" lies in "decentralized purification, pressure improvement and quality, and nearby guarantee", and ceramic membrane technology is the "sharp weapon" to achieve this goal. Compared with traditional organic membranes, ceramic membranes have the following outstanding advantages:
Superior filtration performance for precise removal of contaminantsPhysical screening mechanism: nano pore size intercepts bacteria, viruses, colloids, etc., and the turbidity of the effluent is stable ≤ 0.05NTU (the water quality index is better than the "Sanitary Standard for Drinking Water" (GB 5749-2022) and far better than the requirements of the national standard 1NTU);
Long service life and stabilityThe service life is up to 20 years, the compressive strength is up to 0.7MPa, and it is suitable for complex pipe network environments. It is resistant to acid and alkali and high temperatures, has a long cleaning cycle, and reduces operation and maintenance costs by more than 50%.
Green, low-carbon, safe and residue-freeZero chemical agent addition: "ozone ultraviolet" double disinfection is used to eliminate chlorine disinfection by-products;
Zero precipitation risk: Compared with organic membranes, ceramic membrane materials have no risk of microplastic precipitation;
Energy-saving design: using the residual pressure drive of the municipal pipe network, the energy consumption is reduced by 30% compared with the traditional process.
Haining high-quality pipeline direct drinking water project
The Haining high-quality pipeline direct drinking water project is the first project in China to introduce raw water from Qiandao Lake directly into the community and be deeply treated on site in sub-blocks, opening up a new idea of supplying raw water to high-quality direct drinking water. Compared with traditional membrane materials, ceramic membrane has stronger corrosion resistance, anti-pollution ability and longer service life, and can effectively remove suspended solids, bacteria, viruses and other particles in water. Nanofiltration membrane technology can further finely filter, effectively intercept organic matter with larger molecular weight, some inorganic salts, etc., ensuring the safety of drinking water, while retaining minerals beneficial to the human body, and achieving deep purification and nutritional balance of water quality. Ozone and ultraviolet sterilization disinfection are used to replace traditional chlorination disinfection, which avoids the generation of disinfection by-products and ensures that the water quality is free of chemical residues. The project deploys an advanced automated control system to monitor water quality in real time, automatically adjust treatment parameters, and remotely control the operation of equipment, ensuring the efficiency and stability of the treatment process, reducing labor costs, and improving emergency response speed.
Yiwu Wenhua Mansion Community High-quality Pipeline Drinking Water Project
In order to solve the problem of secondary pollution of the urban water supply pipe network, according to the water supply characteristics and design requirements of the community, with modern ceramic ultrafiltration membrane as the core treatment technology, ozone generator superimposed with ultraviolet sterilizer multiple disinfection and purification treatment process, the connected tap water is deeply treated, which not only effectively realizes sterilization and disinfection and the removal of secondary water supply pollutants, but also removes the odor and color in the water at the same time. Improve the taste and quality of drinking water. The application of modern ceramic ultrafiltration membrane deep treatment process maintains the turbidity of drinking water stably below 0.05NTU, realizes 24-hour uninterrupted circulation sanitization, controls the water age within 2 hours, ensures water safety and fresh water quality, allows people to drink safe and healthy water, and realizes the double improvement of water quality safety and operational efficiency.
Shangyu Hongyan Future Community High-quality Piped Drinking Water Project
Shangyu Hongyan Future Community is one of the first 24 future community pilot creation projects in Zhejiang Province, is the first future community in Shaoxing area, the project innovatively adopts building integration design, water supply equipment and building water supply system synchronous planning, through the community water purification treatment pump room, the integrated deep treatment system with ceramic membrane as the core treatment unit, the sodium hypochlorite generator on-site preparation of disinfection solution for sterilization and other multiple purification treatment processes, the in-depth treatment of the connected tap water, to achieve 24-hour uninterrupted circulation sanitization, The successful implementation of the project provides a replicable model for the transformation of water supply in high-density communities by controlling the age of water within 2 hours to ensure water safety and freshness.
Shangyu District Jinzhu People's High-quality Piped Drinking Water Project
The Shangyu Jinzhu Ceramic Membrane High-quality Pipeline Drinking Water Project is upgraded on the basis of the original water supply pumping room in the community, and through the addition of the ceramic membrane deep treatment process, it effectively removes impurities and microorganisms in the water caused by the secondary pollution of the municipal pipe network, significantly improves the water quality at the end of the pipe network, and completely solves the pain points of people's livelihood such as turbid water quality and poor taste. This transformation not only realizes the iterative upgrading of traditional secondary water supply with low transformation cost and efficient purification technology, but also replaces traditional tap water with high-quality direct drinking water from pipelines, reducing the dependence on household water purification equipment or bottled water, which is both healthy and economical.
Jinlan Mansion high-quality piped drinking water project
In order to comprehensively improve the quality of drinking water for residents, Shangyu Jinlan Mansion Community has innovated and upgraded, introduced a ceramic membrane ultrafiltration system, and created a high-standard direct drinking water project covering 17 residential buildings and 1,064 residents. The project adopts the advanced process of "ozone collaborative ceramic membrane filtration", with a maximum water supply of 130m³/h, and realizes physical fine filtration through two sets of tubular ceramic ultrafiltration membrane equipment running in parallel, and the turbidity of the effluent is stable at about 0.05NTU. The system adopts fully automatic PLC intelligent control, which automatically completes backwash maintenance during the low peak period of water consumption at night, and the wastewater after ozone decomposition can achieve zero pollution discharge, which has the advantages of high efficiency, energy saving and environmental protection. In response to the water supply needs of different floors of the community, innovative configurations of low, medium and high areas without negative pressure water supply devices are innovatively configured to effectively ensure the water supply pressure, water volume and water quality of residential communities.
Their common experience shows that from the "centralized" to the "distributed" water supply mode, the technical route can be selected according to local conditions, the innovatively sink the deep treatment link to the community terminal, establish a modular water purification station at the community level, effectively avoid the risk of secondary pollution of long-distance pipe network water transmission by shortening the water supply radius, control the water age within 2 hours, explore the establishment of an independent circulation pipe network and other innovative measures, effectively avoid the pollution of the water tank in the traditional secondary water supply, Pipe network aging and other risks. Real-time early warning of water quality is realized through the intelligent monitoring system, so that the whole process of safety from "source" to "leader" can truly land in the community, providing a replicable and sustainable solution for urban and rural drinking water safety in the new era.
Drinking water safety is the bottomline ofpeople's livelihood projects. The water supply model of the "second-order water plant"intercepts water quality risks beyond the "last mile"through technological innovation and system reconstruction,so that residents can unscrew the faucet to get healthy and good water.Inthefuture,withthedeepintegrationofnewqualityproductivityinthewaterfield,thismodelwillsurelybecomethe"standard"toensure the safetyofdrinkingwater for thewholepeople,injecting a steadystreamofclearwaterinto a betterlife.
Detailed introduction: Click on the link below the image to view
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