June 29, 2010 |
Asahi Kasei Chemicals Corp.
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Microza™ hollow-fiber membrane systems selected for
large-scale water clarification plants in Asia
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A Microza™ hollow-fiber membrane system from Asahi Kasei Chemicals was selected for Asia's largest membrane-process water clarification plant, a drinking water plant in Hangzhou, Zhejiang, China.
In Korea, Microza systems were also selected for a drinking water plant which will be one of the country's largest membrane-process water clarification plants, as well as for a membrane bioreactor (MBR) system to treat industrial wastewater at a leading LCD manufacturer. |
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| Background |
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| Market for membrane-process water clarification systems |
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The global market for membrane-process water clarification systems is growing by some 10% annually, driven by serious environmental water quality issues and water shortages, as well as increasingly stringent wastewater regulations throughout the world. Asahi Kasei Chemicals is one of the world's top-tier suppliers of such systems, with its Microza™ membranes used at over 800 water clarification plants worldwide.
This year, Microza™ was selected not only for Asia's largest membrane-process water clarification plant, in Hangzhou, Zhejiang, China, but also for a large-scale water clarification plant of Korea Water Resources Corp. (K-water), the largest drinking water supplier in Korea, where widespread adoption of membrane-process water treatment systems is planned. |
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| Market for MBR |
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The market for MBR systems is poised for growth of over 10% annually. The adoption of MBR systems is expanding in applications ranging from industrial wastewater treatment to sewage treatment, providing an effective means to cope with water shortages and tighter wastewater regulations throughout the world as water pollution issues grow in urgency.
Asahi Kasei Chemicals has obtained steadily increasing MBR orders in China, and its Microza™ MBR system has recently been adopted for a large wastewater treatment facility at a major LCD manufacturer in Korea as well. |
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| Recent major projects selecting Microza™ water treatment systems |
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| Asia's largest membrane-process water clarification plant, in Hangzhou, China |
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Microza™ was selected for a 300,000 m3/day membrane-process water clarification plant in Hangzhou, Zhejiang, China. This project stands out as the forerunner among projects for large-sale membrane-process drinking water plants in China, and upon completion, scheduled in 2011, this plant will be the largest membrane-process water clarification plant in Asia. Raw feed water for this plant will be drawn from the Qian Tang Jiang River, which after coagulation and sedimentation will be treated using the Microza™ membrane filtration system to supply the city of Hangzhou with high-quality tap water.
Prior to the selection of Microza™ for this project, Asahi Kasei Chemicals performed tests in Hangzhou over an extended period to demonstrate the system's superior performance. With the establishment of its Microza™ module assembly plant and technical support center in Hangzhou in 2005, Asahi Kasei Chemicals further enhanced its capability to provide swift, high-quality service and technical support for this project and throughout China.
Many other large-scale membrane-process drinking water plants are currently under planning throughout China as rising living standards lead to increased needs for high-quality tap water, particularly water treated using membrane filtration which provides greater safety and reliability than traditional treatment methods.
Process design and system fabrication for the project in Hangzhou is performed by Pall Corp., strategic partner of Asahi Kasei Chemicals in the field of water treatment. |
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Plant outline |
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| Location: |
Hangzhou, Zhejiang, China |
| Water usage: |
Drinking water |
| Capacity: |
300,000 m3/day |
| Contractor: |
Pall Corp. |
| Scheduled start-up: |
December 2011 |
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| One of Korea's largest membrane-process water clarification plants, in Geumsan |
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The Korean government is pursuing the recovery of the reliability of the water supply as a critical national task, and in 2009 formally approved the adoption of membrane-process systems in large-scale water treatment plants. Microza™ was selected by Korea Water Resources Corp. (K-water), Korea's largest drinking water supplier, for a 27,000 m3/day membrane-process water clarification plant. At this scale, the plant will be one of Korea's largest upon completion, scheduled in 2011.
There is a nationwide program in Korea to adopt membrane-process systems at half of all drinking water treatment plants over the next ten years, and the project in Geumsan will play an important role as the forerunner in this program. |
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Plant outline |
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| Location: |
Geumsan, Chungcheongnam-do |
| Water usage: |
Drinking water |
| Capacity: |
27,000 m3/day |
| Contractor: |
Pan Asian Water Co., Ltd. |
| Scheduled start-up: |
December 2011 |
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| MBR system for wastewater treatment at major LCD manufacturer |
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Microza™ MBR has been adopted in a wastewater treatment facility of a global major LCD manufacturer, in recognition of the high quality of treated water it provides-even with a small space requirement. The first phase of the facility has been operating reliably since its start-up in February 2008, and the second phase since April 2010. |
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Facility outline |
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| Process: |
Wastewater treatment by MBR |
| Capacity: |
Phase 1 - 4,200 m3/day, Phase 2 - 4,200 m3/day |
| Contractor: |
Silver Star Engineering Co., Ltd. |
| Start-up: |
Phase 1 - February 2008, Phase 2 - April 2010 |
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| About Microza™ |
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Microza™ is a hollow-fiber membrane with major applications in water treatment, industrial processes, and membrane bioreactor (MBR) systems. Microza™ membranes made of polyvinylidene fluoride (PVDF), in particular, exhibit outstanding physical strength and chemical resistance, enabling long-term stable performance in water treatment applications.
Microza™ holds the leading share of the US market for membrane-process water clarification systems, the world's largest market for such systems, and adoption of Microza™ has been growing strongly in China and other Asian countries such as Singapore, Korea, and the Philippines, which face water shortages and growing needs for improved water quality.
Asahi Kasei Chemicals will continue to pursue growth in orders for large-scale water-treatment facilities throughout the world, particularly in Asian countries where the number and scale of such projects is forecasted to increase steadily, helping to solve a wide range of environmental problems related to water resources. |
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| Recent major orders received in China |
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Microza™ systems have been installed at more than 100 sites in China, with a total combined water treatment capacity of over 150 million m3/day. |
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| Location |
Capacity
(m3/day) |
Start-up |
Use |
| Zhejiang |
300,000 |
2011 |
Drinking water |
| Beijing |
100,000 |
2007 |
MBR for river clarification |
| Zhejiang |
48,000 |
2008 |
Pretreatment for seawater desalination |
| Guangdong |
45,000 |
2009 |
Industrial water |
| Guangdong |
45,000 |
2007 |
Industrial water |
| Guangdong |
44,000 |
2010 |
Industrial water |
| He Bei |
42,000 |
2009 |
Industrial water |
| Beijing |
40,000 |
2008 |
MBR for sewage treatment |
| He Bei |
37,000 |
2009 |
Industrial water |
| Beijing |
35,000 |
2007 |
MBR for sewage treatment |
| Beijing |
30,000 |
2010 |
Industrial water |
| Beijing |
28,000 |
2007 |
Industrial water |
| Guangdong |
25,000 |
2007 |
MBR to treat chemical plant effluent |
| Yunnan |
24,000 |
2008 |
Industrial water |
| Heilongjiang |
24,000 |
2009 |
MBR to treat chemical plant effluent |
| Shanxi |
20,000 |
2008 |
MBR for sewage treatment |
| Beijing |
20,000 |
2010 |
Industrial water |
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