Oct 25, 2011
In order to continuously minimize the environmental impact of exhaust and wastewater produced from process operations, CMI invested about NT$220 million in the installation and improvement of air pollution control and wastewater treatment equipment in 2010.
Installation and Improvement of Air Pollution Control and Water Pollution Prevention Systems
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Installation and Improvement of Pollution Prevention Systems
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Plant Site
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Air Pollution Control
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Construction of the regenerative thermal oxidizer (RTO).
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Plant A, TNSP Plant Site
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Wastewater Treatment Site Sedimentation Basin and Basin Air-sealing Improvement Project
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Plant B, TNSP Plant Site
Plant F, TNSP Plant Site
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Changed to combustion-type local scrubber to cope up with CVD machines and added the CVD dust collection system.
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Plant T1, JNSP Plant Site
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Added the rotor concentrator VOC and THC systems
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Plant T2, JNSP Plant Site
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Water Pollution Prevention
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ITO Process Machine Resin Tower Project
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Plant B, TNSP Plant Site
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Installed the TMAH recycling system
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Tree Valley Branch, TNSP Plant Site
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Installed the phosphoric acid evaporator system
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Tree Valley Branch, TNSP Plant Site
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Installed the nitrogen stripping system
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Tree Valley Branch, TNSP Plant Site
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Purchased the sulfides (total sulfur) analyzer XG-100V
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Plant F, TNSP Plant Site
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AOAO Anaerobic Technology Implementation Project
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Plant T1, JNSP Plant Site
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Process Wastewater Recycling Improvement Project
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Longhua Plant Site, China
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Wastewater Treatment Station Construction Project
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Ningbo Plant Site, China
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Added new process recycling water systems
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Ningbo Plant Site, China
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Added steam condensation recycling systems
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Ningbo Plant Site, China
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Sewage Treatment Station Improvement Project
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Nanhai Plant Site, China
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Industry-Academic Cooperation Projects
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Project Type
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Project Title
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Air Pollution Improvement
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Stack Emission Air Pollutant Monitoring and Minimization Project
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Integrated Stack Exhaust Contents and Odors Investigation Project
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Exhaust Spread Simulation Project
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Wastewater Treatment
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TFT-LCD Process Wastewater Nitrogen Pollutant Treatment Technology Development Project (year 3)
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Optoelectronics Industry Wastewater Recycling Project
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Waste-to-Resources
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Organic Sludge to Resources Research Project
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In 2010, CMI implemented the industry-first evaporator phosphoric acid concentration system to effectively minimize environmental impact a step forward.
System advantages：
-Produces less sludge than conventional treatment to effectively minimize waste.
-Ensures the recycling and reuse of concentrated waste phosphoric acid.
-System water can be recycled for process use.
-Reduces total phosphoric concentration in effluent to minimize environmental impact.
Recognizing that using large amounts of tetramethylammonium hydroxide (TMAH) in the process will bring heavy load to the wastewater treatment system and produce a large quantity of organic sludge, CMI began aggressive R&D with suppliers to invent the industry-first TMAH recycling system. With extraction and purification, liquid waste is recycled for reuse. System tests were completed during 2008 and 2009, system construction and application for use were completed in 2010, and official operations will begin in 2011.
Having faith for this land, CMI has spent greater efforts and more investments on planning and implementing environmental impact minimization. As a result, the performance in pollution control is increasing.
The recycling and reuse projects promoted in 2010 included: TMAH liquid waste recycling, waste stripper and waste aluminum etchant recycling efficiency enhancement; waste gypsum and waste calcium silicate board to resources; and clean room wiper reduction.
In 2010, the total quantity of waste was 105,640 tons, and the average waste-to-resource rate was 88.5%. The highest waste-to-resource rate at 94% goes to Plant T3 of JNSP Plant Site. In the future, we will uphold the clean production concept and continue to promote R&D and implementation of waste minimization at the source of process and waste-to resource at the end of process.。
Waste-to-Resource Rate of CMI Plants in 2010 and Targets for 2011, Unit: %
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Waste-to-Resources
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TNSP
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JNSP
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LH
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NB
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NH
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NJ
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SH
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Actual Achievement in 2010
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91.1
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91.6
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88.8
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77.0
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79.5
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72.2
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83.0
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Target for 2011
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92.6
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91.6
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*
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78.0
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82.0
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75.0
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84.0
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* The target of Longhua Plant Site for 2011 is not set because the production line diversion is in progress.
