Sanmen Nuclear Power Plant Desalination Project

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.




        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



          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. 

Seawater FGD Treatment for Haimen Ultra-Supercritical Power Plant (4×1036MW)
The worldwide biggest SWFGD project, which has high-reliability and high-efficiency and achieves “NEAR ZERO EMISSION”.

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


  • Unit capability: 4 x 1036 MW

  • Gas flow: 3,299,106 Nm3/h (wet, O2)

  • SO2 content: 1,704 mg/Nm3

  • SO2 removal efficiency: ≥95% (Overall); 98% (Unit 1, unit 2)

  • Technology: SWFGD technology

  • Project type: Engineering-Procurement-Construction (EPC)

  • Location: Haimen, Guangdong Province, China

  • SWFGD Process Flow Diagram

    The SO2 Content of Gas Inflow and Outflow


  • 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.

  • 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

  • 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.

    Gas Regulator Station of Zhangjiagang Combined Cycle Power Plant (2×395MW)
    The first natural gas (NG) regulator station for 9F level combined cycle power plant (CCPP) in China

    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.


  • Quantity: 2 sets gas turbine (9FA level)

  • 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.

  • Technology: NG regulation technology

  • Project type: Engineering-Procurement-Construction (EPC)

  • Location: Zhangjiagang, China

  • Footprint: 20 m x 15 m

  • Highlights

  • Lean management culture and systematic quality service;

  • Cooperation with professional equipment manufacturer of home and abroad;

  • Rich experience in designing, construction and operation & maintenance;

  • Well-equipped simulation laboratory;

  • Appropriate fuel gas system layout;

  • High safety in the fuel gas system;

  • Perfect fire-resistance support property in the fuel gas system;

  • Reliable protection system during the operation of fuel gas system;

  • The successful operation of the system is under guard of professional stuff.

  • 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.

    Qingpu Municipal Sludge Drying Plant Project (200 t/d)
    The Qingpu Municipal Plant has adopted SafBon’s sludge drying technology (thin film dryer) which integrates sludge drying with power generation to deliver savings and synergies to the customer and demonstrates a holistic circular way to manage the environ

    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


  • Capability: 200 t/d

  • Technology: Sludge drying technology (thin film dryer) synergized with power generation

  • Project type: BOT

  • Location: Qingpu distrust, Shanghai, China

  • Main Process



  • 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.

  • 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.

  • 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.

    Cangzhou Seawater Reverse Osmosis Desalination Plant Project (100,000 t/d)
    The first 100,000 t/d desalination project in China was independently designed, built and operated by SafBon.

    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.


  • Capability: 100,000 t/d

  • Technology: Seawater Reverse Osmosis (SWRO) technology

  • Project type: Private-Public-Partnership (PPP)

  • Location: Cangzhou, Hebei Province, China

  • Footprint: 46,667 m2

  • Energy Consumption: 3.5 kWh/t freshwater

  • Main Process

    SWRO Unit

    The Water Quality of Seawater Desalination Plant Influent and Effluent


  • 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.

  • 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.

  • 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.

    Powder Coated System for Yulin Subcritical Power Plant (5×330MW)
    A typical project of powder coated filter applied in high temperature condensate polishing system.

    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.


  • Unit: 5 units

  • Capability: 900 m3/h

  • Design Pressure: 3.5 MPa

  • Technology: Powder coated technology

  • Project type: Engineering-Procurement-Technical service (EP)

  • Location: Yulin, Shanxi province, China

  • Footprint: 500m2

  • Main Process

    The Water Quality of CPP(Normal)


  • 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.

  • 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.

  • 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.

    Water Supply Project, Jinzhou, China (250,000 t/d)
    Expert know how, experience and technologies for large water supply engineering.

    SafBon was awarded the Jinling reservoir water supply project with Jinzhou water affairs (group) co., ltd. The whole project includes a water intake and water supply pumping station, a water purification plant and a water distribution system. As it is the first municipal surface water treatment plant of Jinzhou city, it would supply the inhabitants of the city 250,000 m3/d of freshwater, which would effectively ease the water strain on water scarce urban areas.


  • Production capability: 250,000m3/d

  • Technology: Folded-plate flocculation and sand filters

  • Project type: Engineering-Procurement-Construction (EPC)

  • Location: Jinzhou, Liaoning province, China

  • Footprint: 166,667 m2

  • Main Process


    The Water Quality of WTP Influent and Effluent



  • Large-scale water supply project

    The project includes the entire processes from inception to the end, including a water purification plant, a booster pumping station, a 66 kV power substation, 4 km transmission pipeline and 22 km distribution pipeline.

  • Showcase water supply project

    The Jinling Reservoir Water Supply Project is the largest water supply and a priority project for Liaoning Province as it supports the key livelihoods of Jinzhou citizens.

  • Innovative and mature technologies

    The various surface water treatment processes are used in the project.

  • Going well on the construction of Jinling reservoir water supply project shows the SafBon ability in handling large scale municipal water treatment project.

    Reclaimed Water Advanced Treatment for Shouyangshan Power Plant (2×600MW)
    A SafBon advanced lime technology project in reclaimed water treatment processing has been running steadily for over 10 years.

    China resources group required a reclaimed water treatment system for the Henan Shouyangshan (2 x 600 MW) power plant. The effluent from Luoyang sewage treatment plant is treated by this system. The treated water is reused as circulating cooling water and boiler make-up water. And the produced sludge can be directly used for the desulfurization process in the power plant.

    A lime technology is utilized in this project, including automated powdered lime storage, metering and preparation system. The milk lime is fed into the specially designed clarifier. This technology solves the issues, such as hopper rat-holing, arching and bridging of the lime system to achieve a dust-free process.


    Lime Bin Activator


  • Capability: 80,000 m3/d

  • Technology: Lime coagulation and clarifying filtration technology

  • Project type: Engineering-Procurement-Construction (EPC)

  • Location: Shouyangshan, Henan province, China

  • Lime Bin Activator

    Main Process

    Gravity Sand Filter


  • Stable and reliable

    The facilities have been running steadily and the effluent has always met the requirements for over 10 years.

  • Low environmental impacts

    The application of SafBon lime technology has resulted in dust-free conditions.

  • Energy-saving emissions, hence energy reduction and progress towards a circular economy

    The effluent water quality can be used for circulating, cooling and boiler make-up, thus reducing the total water consumption; the CaCO3 contained sludge can be used for desulfurization and it reduces the chemical consumption. In summary, the process saves 8 million yuan/year of operating costs for the Shouyangshan power plant.

  • SafBon offered 30 sets of successful references for milk lime reclaimed water reuse projects.

    Hazardous Waste Incineration Treatment in Penglai, China (30 t/d)
    A demonstration of utilization of a safe, reliable, efficient and environmental-friendly hazardous waste treatment technology for industrial waste, incineration and other hazardous and normal solid wastes.

    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. 


  • Capability: 30 t/d

  • Technology: Combined rotary kiln with secondary combustion chamber

  • Project type: Private-Public-Partnership (PPP)

  • Location: Penglai, Shandong Province, China

  • Main Process


             Bag-Type Dust Collector                                             Secondary Combustion Chamber


  • 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.

  • 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.

  • 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.

  • Novel Pretreatment Process for Seawater Desalination in Yingkou (100,000 t/d)
    A leading pretreatment process design is adopted in the Yinkou desalination business.

    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.


  • Capability: 100,000 m3/d 

  • Technology: DAF + CFM + seawater reverse osmosis (SWRO)

  • Project type: Public-Private-Partnership (PPP)

  • Location: Yingkou, Liaoning Province, China

  • Footprint: 53,333 m2

  • Main Process


    The Water Quality of Seawater Desalination Plant Influent and Effluentimage.pngblob.png

    Unique CFM Technology from ItN, Germany


    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.

    Deep Bed System Project of Puqi Ultra-Supercritical Power Plant (2×1,000 MW)
    SafBon’s first 2 x 1,000MW ultra-supercritical power project has the largest power generating capacity, condensate water flow rate and the highest water quality requirements.

    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


  • Unit: 2 units

  • Capability: 2,400 m3/h

  • Design Pressure: 4.5 MPa

  • Technology: Deep bed polishers + Hi-tower external regeneration system

  • Project type: Engineering-Procurement-Technical service (EP)

  • Location: Puqi, Hubei province, China

  • Footprint: 650 m2

  • Main Process

    The Water Quality of CPP(Normal)


  • 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.

  • 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.

  • 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. 

    Sewage Treatment for the Yuncheng Industrial Park, Shandong Province (40,000 t/d)
    Yuncheng sewage treatment plant project is a typical sewage treatment project, which adopts the BIOBON technology as the main process.

    The plant has a capacity of 40,000 t/d and adopts tertiary treatment processes. The effluent water can meet the first grade A standard of China’s “Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant”. It is a Build-Operate-Transfer (BOT) project which has resolved the local rampant and random discharges by park tenants as well as the environmental pollution issues. The project paves the way for ensuring the sustainable development of the industrial park.


  • Capability: 40,000 m3/d

  • Technology: BIOBON

  • Project type: Build-Operate-Transfer (BOT)

  • Location: Yuncheng, Shandong Province, China

  • Main Process


    The Water Quality of WWTP Influent and Effluent



  • Adopting the BIOBON process

    The BIOBON adopted in this project is a multi-stage activated sludge process, which integrates biological nitrogen, phosphate and carbonate removal, final clarification and a subsequent advanced water treatment in the same basin. It can decrease the construction costs which is always lower than the normal bio-chemical tank costs, therefore saving capital investment enhancing the project economics.

  • Convenient operation and maintenance

    One unique aspect of the BIOBON process is that all the equipment in the BIOBON tank can be lifted outside the water to execute daily maintenance and overhaul without the need to empty the tank. This can reduce costs and also resolve the problem of bacteria re-cultivation.