Successful solutions for harsh reclaimed wastewater in a coal chemical plant. 

In this project, SafBon provided the entire design, engineering and all the relevant equipment for the main process in the demineralized water production plant to treat the harsh effluent wastewater from coal chemical plant for the Hwasu corporation. This plant provided a consistently stable and reliable effluent quality which met all the requirements of the client. This high-performance project contributed to sustainable water reuses mandate in Hwasu corporation.

Overview

Capability: 10,800 m³/d

Technology: ultrafiltration (UF), reverse osmosis (RO) and deep bed polisher

Project type: Engineering-Procurement-Technical Service (EP)

Location: Dingyuan, Anhui Province, China

Footprint: 9,600 m²

Main Process

The Water Quality of Demi Water Treatment Process Influent and Effluent

Highlights

Mature and reliable technology

The conventional and mature demi water production processes are used in the project, which has been developing for a long period and proved the process always resulted in a stable and reliable effluent quality.

Automatic operation

SafBon’s Automatic Control System with programmable logic controller (PLC) is utilized in various components of this project, including pump control, valve control and chemical dosing control. Thus, the system can be easily operated and the manpower is minimized.

SafBon has demonstrated the ability to provide complete pure water solutions for the plastic industry through stable and high-performance operational targets achieved in this project.

Successful application of ultrafiltration (UF) for very large scale water treatment plant for power plant.

Safbon supplies the pretreatment system equipment, designed and supplied water heating, self-cleaning filter and ultrafiltration (UF) system for the Taiyuan 2nd power plant of China Datang Corp. (2x300MW). Safbon utilized the UF system to treat the effluent from Taiyuan Municipal sewage treatment plant as a boiler supply water source. In this way, the recycling rate of wastewater has been improved, which has alleviated the shortage of water resources in north China.

Overview

Capability: 1,500 m³/h

Technology: UF process

Project type: Engineering Procurement (EP)

Location: Taiyuan, Shanxi province, China

Main Process

The Water Quality of the Influent

The Water Quality of the Effluent

Highlights

Stability and Reliability

The using of UF as the pre-treatment process can remove most of the large particles and colloid in the water substance. It slows down the scaling and fouling process on RO membrane. 

Conserves Water

Safbon utilizes UF system to treat the effluent from municipal sewage treatment plant as a boiler makeup water source. In this way, the recycling rate of wastewater has been improved, which has alleviated the shortage of water resources in north China.

SafBon undertook the lead and zinc smelting wastewater advanced treatment project of the Chihong mining co., ltd, Inner Mongolia. In this project. Membrane technology and integrated wastewater advanced treatment technologies are applied here to further treat metallurgical wastewater.

Overview

Capability: 4,080 m³/d (Feed water)

Technology: UF and RO technologies

Project type: EPC(Engineering Procurement Construction (EPC)

Location: Hulunbeier, Inner Mongolia Province, China

Main Process

The Water Quality of WWTP Influent

The Water Quality of WWTP Effluent

Highlights

Low environmental impacts

The adopted wastewater treatment processes achieved zero liquid discharge status, so that the environmental pollution was minimized. All the treated water is reclaimed and reused in industry, thus mitigating the local water shortage issues.

Well-designed

The whole project was designed indoors to prevent the equipment from extreme weather (Temperature: -30°C) in the winter. The adopted equipment uses more complete sets of steel containers which required a smaller footprint and shorter installation time.

The adopted metallurgical wastewater treatment technology of UF and RO and the reuse of produced water are able to alleviate freshwater resources strain.

SafBon leads the way in integrated membrane technology, including ultrafiltration (UF) and reverse osmosis (RO). 

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

Capability: 548m³/h

Technology：UF, RO

Project type: Engineering Procurement (EP)

Location: Hequ, Shanxi province, China

Main Process

The Water Quality of Influent

The Water Quality of Effluent

Highlights

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.

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.

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.

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

Capability: Process condensate, 1,400 t/h;Turbine condensate,900 t/h

Design Pressure: 0.6 MPa

Technology: Condensate polisher

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

Location: Duolun, Inner Mongolia Province, China

Main Process

Process Condensate:

Turbine Condensate:

The Water Quality of CPP Influent and Effluent

The Water Quality of Turbine Condensate CPP Influent and Effluent

Highlights

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.

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.

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

Capability: 16,800 m³/d

Technology: UF, RO and EDI

Project type: Engineering Procurement Construction (EPC)

Location: Datong, Shanxi province, China

Footprint: 3,800 m²

Main Process

The water quality of WWT Effluent

The produced water quality of WTP

Highlights

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. 

Automatic operation

The system is running automatically and requires less manpower operation compared with conventional processes.

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 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

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）

Highlights

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. 

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.

Overview

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）

Highlights

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.