Huaneng Haimen Power Plant (4 x 1036 MW) which adopts SafBon’s seawater flue gas desulfurization (SWFGD) technology is the first and largest SWFGD project in the world. It showcases SafBon’s world-class advanced SWFGD technology. The clients have been extremely satisfied with the high-reliability and high-efficiency of the project.
Huaneng Haimen Power Plant
Overview
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Unit capability: 4 x 1036 MW
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Gas flow: 3,299,106 Nm3/h (wet, O2)
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SO2 content: 1,704 mg/Nm3
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SO2 removal efficiency: ≥95% (Overall); ≥98% (Unit 1, unit 2)
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Technology: SWFGD technology
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Project type: Engineering-Procurement-Construction (EPC)
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Location: Haimen, Guangdong Province, China
SWFGD Process Flow Diagram
The SO2 Content of Gas Inflow and Outflow
Highlight
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Patented technology
SafBon has developed and patented this seawater-FGD technology for large-sized coal-fired power station boilers, including its engineering design software package.
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High performances and reliability
The SWFGD system has high stability, high reliability and is easy to maintain. The SO2 removal efficiency, discharged seawater quality and energy savings are excellent. It is also adaptable for varying conditions of unit load, coal and seawater quality
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Near zero emissions
With the exception of the condenser cooling seawater as SO2 absorbent, no any other additive is required except air and so the whole system has no solid desulfurization by-products or secondary pollution.
The first natural gas (NG) regulator station for 9F level combined cycle power plant (CCPP) in China Zhangjiagang Huaxing power plant has two sets of GE-S109FA, the gas - steam combined cycle generating unit which resulted in the installation for a natural gas pressure regulating station for two gas turbines. The natural gas pressure regulating station includes almost all the natural gas processing modules, including the metering unit, heating unit, filter unit, pressure regulating unit, nitrogen displacement unit, relief system and pressure regulating and controlling system. With this system, the natural gas can meet the requirements of gas turbine.
Overview
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Quantity: 2 sets gas turbine (9FA level)
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Capability: Gas Turbine maximum gas consumption:
Regulator station inlet: 164,000 Nm3/h (2 × 65.5 t/h);
Regulator station outlet: two routes, each 82,000 Nm3/h (65.5 t/h);
Gas Turbine minimum steady state gas inflow: ~ 13 t/h.
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Technology: NG regulation technology
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Project type: Engineering-Procurement-Construction (EPC)
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Location: Zhangjiagang, China
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Footprint: 20 m x 15 m
Highlights
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Lean management culture and systematic quality service;
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Cooperation with professional equipment manufacturer of home and abroad;
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Rich experience in designing, construction and operation & maintenance;
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Well-equipped simulation laboratory;
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Appropriate fuel gas system layout;
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High safety in the fuel gas system;
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Perfect fire-resistance support property in the fuel gas system;
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Reliable protection system during the operation of fuel gas system;
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The successful operation of the system is under guard of professional stuff.
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Convenient operation and maintenance.
The whole system is designed by modular and pry loading method supply. The main equipment and various accessory instruments and instruments of the system were first installed and manufactured in the factory, and the monomer inspection, water pressure tightness test and the whole machine performance test were qualified, then sent to the project site. The pry loading system has the advantages of convenient installation, reliable performance and easy operation. This project can be a typical example in the supporting project of natural gas processing system in the power industry.
The first desalination project for the 3rd generation nuclear power plant.
The Sanmen Nuclear Power Plant Phase I (2X1250MW) is the first demonstration project of AP1000 nuclear reactor in the world, which is applied with passive technology. The product water of desalination plant is the main source of the nuclear island and the regular island in the whole power plant, which needs high level of both reliability and security. In the desalination process, a dual main piping design is applied before the desalinated water tank. As a result, the desalination equipment is divided into two trains, and connected in units. This kind of connection type enhances the reliability of the system, and guarantees the safe operation of the nuclear power plant.
SWRO Unit
▇ Overview
〉 Capacity: 2 X 177 m3/h
〉 Technology: Untra-filtration (UF) Technology & Seawater Reverse Osmosis (SWRO) Technology
〉 Project Type: Engineering Procurement (EP)
〉 Location: Sanmen, Zhejiang Province, China
▇ Main Process
Influent Seawater Quality
Main Performance Index of SWRO
▇ Highlights
〉 Minimal Environmental Impact
The side products of the seawater desalination plant are RO concentrated water and sludge. In this project, the brine from reaction and sedimentation basin will be transferred to the thickening tank. The moisture content of the concentrated sludge will be cut down to 96~97% regularly. The moisture content of the dehydrated sludge will be decreased to 75% after treated by the dehydrator. In that case, the dry sludge cake is easy to be transported and landfilled.
〉 Simple and Convenient Operation Mode
An automatic control system is utilized in various components in this project. The system could achieve an automatic operation of the whole desalination plant, so that minimize the required manpower in this project. Specifically, an automatic and smart data acquisition system is installed and these data will be intelligently analyzed by the programmable logic controller (PLC). The PLC takes over all the automatic control tasks of the desalination plant.
〉 Stability and Reliability
The adoption of the ‘Clarification + Sand filter + UF’ as the pre-treatment process can remove most of the large particles and colloid in the influent. It protects the normal and stable operation of the RO process by slowing down the scaling and fouling process on RO membrane.
SafBon was awarded the Cangzhou seawater desalination project by the local Cangzhou government. It is located in the Bohai Development Zone, Cangzhou, where there is a lack of freshwater resources for both domestic and industrial use. The initiation, launch and completion of this cost effective project is expected to relieve the urgent freshwater needs in the Bohai Development Zone.
Overview
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Capability: 100,000 t/d
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Technology: Seawater Reverse Osmosis (SWRO) technology
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Project type: Private-Public-Partnership (PPP)
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Location: Cangzhou, Hebei Province, China
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Footprint: 46,667 m2
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Energy Consumption: 3.5 kWh/t freshwater
Main Process
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Minimal environmental impact
The side products of seawater desalination plant will be RO concentrate and sludge. The RO concentrate can be reused as the raw material of industrial salt production and the dried sludge will be transported to the landfill and composted.
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Simple to operate via automation
Automatic control systems with is utilized in various components in the project, including pump, valve and chemical dosing control. An outlet water (freshwater) database will also be established to track the volume of fresh water to each user and the data will be used for water bill calculations.
SWRO Unit
The Water Quality of Seawater Desalination Plant Influent and Effluent
Highlights
As an inaugural and innovative project for seawater desalination in China, the Cangzhou desalination project demonstrates the RO project design capabilities, expertise and experience of SafBon which has increasingly advanced during the past ten years. The completion and successful operation of this project will greatly support SafBon’s efforts to expand its SWRO business to other regions of China, as well as globally.
Yingkou desalination project which is invested, designed, constructed and will be operated by SafBon will have a capacity of project 100,000 m3/d. The project also delivers enough water supply for chemical enterprises in the Xianren island energy chemical industry park.
How to guarantee the high performances of reverse osmosis (RO) membrane is a key factor to evaluate the performance of its pretreatment system. SafBon engineers challenge the conventional technology and decided to use the unique process of dissolved air flotation (DAF) + ceramic flat membranes® (CFM) to solve the algae and red tide attacks during operation.
Overview
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Capability: 100,000 m3/d
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Technology: DAF + CFM + seawater reverse osmosis (SWRO)
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Project type: Public-Private-Partnership (PPP)
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Location: Yingkou, Liaoning Province, China
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Footprint: 53,333 m2
Main Process
The Water Quality of Seawater Desalination Plant Influent and Effluent
Unique CFM Technology from ItN, Germany
Highlights
DAF technology of KWI is applied to treat the seawater against the algae, oil and other suspended impurities. CFM of ItN are used in this project and the advantages are brilliant. Its 25 - years life time, higher flux and lower operation costs will guarantee tbis process in stable operation.
It is the largest ceramic membrane project for seawater desalination plant.
The Qingpu 200 t/d municipal sludge drying plant was built and operated since in 2014. It is designed to treat the all the municipal sludge of the entire Qingpu District, whose resident population is around 1.2 million. Under the guidance of Shanghai Qingpu Water Authority, SafBon built the project with its advanced technologies and innovative business models. It addresses the potential problems produced from conventional municipal sludge treatment, for instance, the smell and land occupation caused by landfill and compost.
Qingpu, Shanghai Sludge Drying Plant
Overview
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Capability: 200 t/d
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Technology: Sludge drying technology (thin film dryer) synergized with power generation
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Project type: BOT
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Location: Qingpu distrust, Shanghai, China
Main Process
Highlights
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Patented innovative technology
The thin-film sludge dryer utilized in this project is independently developed by SafBon who owns all intellectual property rights. This technology has filled a domestic gap in this treatment field and has achieved high sludge dehydration rates with correspondingly low environmental impacts.
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Unique operating mode
The process of sludge drying synergized with power generation and involves taking the sludge from the municipal waste water treatment plant and drying it, using synergies from power generation to produce the final product. It involves a comprehensive utilization of the resources of the sludge treatment system which comprises of power plant, sludge drying plant and municipal waste water treatment plant.
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A holistic circular economy mode
With the circular economy mode applied in the Qingpu municipal sludge drying plant project, around 4.6 thousand ton standard coal can be saved every year, and 11.5 thousand t/a CO2 emissions was reduced.
The construction of this project also brought social benefits to the client and the citizens in Qingpu district. It solved the urgent problem of sludge disposal. It can alleviate the sludge retention pressure, reduce the impact of sludge landfill on the surrounding environment, reduce the consumption of landfill capacity, and enhance the stability and safety of the sludge treatment.
SafBon invested, designed and delivered combined rotary kiln with secondary combustion chamber technology for the hazardous waste treatment plant for Penglai chemical industry park, Shandong province. The project effectively solves the disposal of hazardous waste and eliminates environmental pollution. Furthermore, the cost effectiveness of the treatment is economically beneficial to the waste producing companies.
Overview
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Capability: 30 t/d
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Technology: Combined rotary kiln with secondary combustion chamber
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Project type: Private-Public-Partnership (PPP)
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Location: Penglai, Shandong Province, China
Main Process
Bag-Type Dust Collector Secondary Combustion Chamber
Highlights
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Wide Applicability for Incoming Waste Streams
The rotary kiln can handle with a large variety of industrial solid wastes with varying properties and heat value concurrently . The incineration process of the mature rotary kiln and the secondary combustion chamber is able to form good "3T" (temperature, time and turbulence) burning conditions, and the waste is decomposed and burnt completely.
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Less Byproducts from the Process
Two combustion chambers have design temperatures between 1100°C to 1300°C, and coupled with the flue gas retention time being greater than 2 seconds, the combination of these can completely break down the dioxins, which are harmful to human health.
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Automation
Online and offline cleaning can be monitored and the lime and activated carbon dosing can also been regulated offline to achieve excellent results. In this particular project, SafBon demonstrated excellent ability in the field of solid waste treatment and advanced technology application in this area. It showcases SafBon’s commitment to the environment and community to provide reliable and efficient technology hazardous waste treatment.
SafBon applied an advanced powder coated filter in the condensate polishing system for Yulin power plant. The water resource is deficient in the Chinese northern area, so the new built power plants adopt air cooling units, which results in a high temperature of the condensate. The application of SafBon powder coated filters solved the technical difficulty that the hot condensate cannot be treated with the conventional deep bed polishing.
Overview
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Unit: 5 units
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Capability: 900 m3/h
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Design Pressure: 3.5 MPa
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Technology: Powder coated technology
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Project type: Engineering-Procurement-Technical service (EP)
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Location: Yulin, Shanxi province, China
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Footprint: 500m2
Main Process
The Water Quality of CPP(Normal)
Highlights
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High generation rates
The applied powder coated filters utilize powdered resin with high regenerated rates. This is pre-coated on the fiber filter element surface and performs the functions of both filtration and ion exchange.
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High performances
The features of the applied powder coated filter includes: large operating capacity; effective removal of corrosion products from the thermodynamic system; and ferric oxide removal rates of 95% or higher.
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Hot condensate treatment
The powder coated filter can be applied in hot condensate treatment.
With this project, SafBon demonstrates its ability in condensate polishing technology for hot condensate treatment in arid area operating air cooled condensers. SafBon is the market leader in applying powder coating CPP in China with over 65% market share.
SafBon designed and supplied a spherical condensate polisher system and an external regeneration system for Puqi ultra-supercritical power plant of China resources power holding co., ltd. (2 x 1,000 MW). The system is employed for impurities and dissolved solids removal in the condensate which provides high quality treated water to the ultra-supercritical boilers.
Hi-Tower Regeneration System
Overview
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Unit: 2 units
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Capability: 2,400 m3/h
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Design Pressure: 4.5 MPa
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Technology: Deep bed polishers + Hi-tower external regeneration system
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Project type: Engineering-Procurement-Technical service (EP)
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Location: Puqi, Hubei province, China
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Footprint: 650 m2
Main Process
The Water Quality of CPP(Normal)
Highlights
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Complete resin separation
The application of hi-tower technology in the regeneration system perfectly separates the mixed cation and anion resin. Thus the resin is prevented from the opposite regenerant contamination.
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High quality of effluent
With the unique structure of the mixed bed, the resin transfer rate is up to 99.99%. It ensures the product water quality is as good as the power plant requires.
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Less investment
The adopted spherical condensate polisher saves equipment investment under higher pressure normal operation.
SafBon has experience in condensate polishing system design for over 20 years. With this project, SafBon first demonstrates its ability in large-scale condensate polishing project for the power plant as large as 2 x 1,000WM Ultra-supercritical.
China Datong power generation co., ltd (2 x 660 MW) is located in the western part of China, where water is limited. In order to reduce the water costs and the environmental pollution, the Datong supercritical power plant utilizes a SafBon designed integrated membrane deionization system to treat the effluent from Datong Northeast Suburb Municipal sewage treatment plant.
Overview
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Capability: 16,800 m3/d
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Technology: UF, RO and EDI
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Project type: Engineering Procurement Construction (EPC)
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Location: Datong, Shanxi province, China
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Footprint: 3,800 m2
Main Process
The water quality of WWT Effluent
The produced water quality of WTP
Highlights
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Safe and reliable
The using of ultrafiltration as the pre-treatment process results in less turbidity and SDI (silt density index) in the filtered water. It slows down the scaling and fouling process on RO membrane.
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Automatic operation
The system is running automatically and requires less manpower operation compared with conventional processes.
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Bold and innovative
SafBon originally designed the use of Municipal sewage as a water source, and the treated water completely meets supercritical boiler feed water quality requirements. Due to the poor water quality, high difficulty of the technology and the large scale of the project, it is also the first large-scale UF+RO+EDI integrated system successfully applied in a power plant in China.
SafBon won the contract for the condensate polishing project with Duolun coal chemical engineering project. The condensate in coal chemical process becomes harsh treated water. The condensate contaminates, i.e. organics, iron and hardness, are removed in the condensate polishing system and the treated effluent will be reused.
Overview
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Capability: Process condensate, 1,400 t/h;Turbine condensate,900 t/h
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Design Pressure: 0.6 MPa
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Technology: Condensate polisher
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Project type: Engineering-Procurement-Technical service (EP)
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Location: Duolun, Inner Mongolia Province, China
Main Process
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Process Condensate:
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Turbine Condensate:
The Water Quality of CPP Influent and Effluent
The Water Quality of Turbine Condensate CPP Influent and Effluent
Highlights
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Stability and reliability
The system has been running steadily for extended periods since it started operations. The effluent consistently meets the requirements for the power station and boiler water usage.
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Automation
The entire condensate polishing system adopts programmable logic controller (PLC) to achieve an automatic remote operation.
SafBon put a lot of work and preparation for the development, construction and thereafter operation of the water treatment system for this coal chemical plant Throughout this project and subsequently after, SafBon has demonstrated its strong technical capabilities, expertise, experience and variety for advanced technologies for the water treatment industry.
Hequ Supercritical Power Plant (2×600MW) is located in Yizhou, Shanxi province, where water is limited. In order to reduce the water costs and the environmental pollution, the Hequ power plant utilizes a SafBon designed integrated membrane technology to treat the effluent from sewage treatment plant, following which the effluent will be used as boiler makeup water and recycled water source. Not only is the environmental pollution caused by the sewage reduced, but the reused water is increased, thus relieving the water shortage in the power plant.
Overview
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Capability: 548m3/h
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Technology:UF, RO
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Project type: Engineering Procurement (EP)
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Location: Hequ, Shanxi province, China
Main Process
The Water Quality of Influent
The Water Quality of Effluent
Highlights
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Safe and reliable
The using of ultrafiltration as the pre-treatment process results in less turbidity in the filtered water. It slows down the scaling and fouling process on RO membrane.
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Environmental friendly
The recycling of the treated water not only reduces the environmental negative impact caused by sewage discharge, but it also alleviates the local water shortage.
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Bold and innovative
SafBon originally designed the use of the UF+RO integrated system successfully applied in a power plant in China. So that the water hardness, conductivity and other indicators fully meet the requirements of the system.