TOPICSP
POREFLON™
Membrane-Separation
W
Wastewater Treatment System

Aiming to Restore Waterin the WorldThe Sumitomo Electric Group has developed a POREFLON™ membrane-separation wastewater treatment system.
Highly valued for its performance and durability, the system is currently used not only in Japan but also worldwide,
mainly in China and other Asian countries. This article introduces the product, which also contributes to resourcesaving through the reuse of process water as well as to environmental conservation.

We will help to solve variouswater-related problems in the world
through our products

We meet customer's requirements with
our original technologies and products
The POREFLON™ membrane-separation wastewater
treatment system using the POREFLON™ module is awastewater treatment system based on thepolytetrafluoroethylene (PTFE) membrane created with thetechnology of the Sumitomo Electric Group. The combinationof membranes enables the system to treat activated sludge
at a higher concentration than the sludge treated by theconventional standard activated sludge process, ensuring thestable quality of the treated water. Chemical cleaning can beapplied because the system is durable and resistant tochemicals. As a result, the burden of maintenance work canalso be reduced. Another advantage of this product is that it
can be designed according to the specific uses intended by
the customer and its equipment. It has been installed inplants, buildings, commercial establishments and various
other places in Japan and overseas.

Wastewater treatment system operated in our Osaka Works

Takayuki Nishiura
Manager, Process Engineering Group, Engineering Department, Water Processing Division

37 CSR Report 2017

POREFLON™ Membrane-Separation Wastewater Treatment SystemBC

AerationblowerControlpanel

Basis for Management

Membrane module(POREFLON™ module)

Filtrationpump

Business Outline

Treatedwater

Membrane tank

Return sludge

A Sludge return pump

B Aeration blower

Group's CSR Activities

A Sludge return pump

Governance

Hollow ﬁber membrane(enlarged view)

C Control panell

My department engages in the design of the system at theafter-sales services including performance checks after theinstallation and regular inspections, and work with customers

We delivered this system to the plants of Kaihara Co.,

to regulations and other issues. ForLtd., a leading manufacturer of high-quality denim, inoverseas customers, in particular,Kisa, Hiroshima and the Ratchaburi Industrial Estate,

the system is required to have

Thailand. Before the delivery, we carried out a pilot

proper specifications that satisfy

test with actual wastewater for a year and a half

up-to-date local standards because

jointly with Kaihara and Shinyu Co., Ltd. Then, Kaihara

the quality of treated wastewater isintroduced the system into each of the plants andso significant that it can influence
the operation of the plant.

started to operate them in 2015. These systems haveenabled Kaihara to treat

Inspection of the operational
status of the system

industrial wastewater in astable manner and havesubstantial effects on thereduction of industrial waste,energy costs and equipment

The quality of wastewater is now a social issue around theinstallation space.

world. This product has potential to keep solving various
water-related problems through continuous improvement.

supporting efforts to prevent river and marine pollution basedon its stable treatment performance.

Environmental
Preservation

Currently marketed mainly in Asia and installed in plants that

Human Resources

We will keep addressingglobal water issues

require difficult wastewater treatment, the product is

Supply Chain

been becoming more difficult due

Products & Services

to handle the situation concerning wastewater, which has

Delivered POREFLON™
membrane-separation wastewater
treatment systems to Kaihara Co., Ltd.

CoreCategory

stage of equipment establishment. We also provide

Wastewater
treatment systeminstalled in
the Kisa Plant

Due to climate change, population growth, economic
development in emerging countries and the other reasons,the world. We will continue to orchestrate the efforts of theSumitomo Electric Group on a global scale to contribute to

Wastewater treatment system installed in the Thailand Plant

society in the aspect of water reuse.

CSR Report 2017

Social Contribution

water shortage is becoming a conspicuous problem all over38