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The problem: In 2002, Fook Tin noticed an increasing demand for products with spray-painted top covers and weighing sensor housing. However, volatile organic compounds (VOCs) released during spray painting can cause severe air pollution and pose a risk to health.
Their solution: To reduce the emission of VOCs from paints. By doing this they would also be complying with Guangdong Environmental Standards (DB44/27-2001). Fook Tin undertook its own air pollution reduction programme by automating the spray painting process and developing a designated paint spraying room with a water curtain.
Fook Tin invested around HK$950,000 to design and install the new facilities. The key features of the programme were:
- Air scrubbers to collect mist from spray painting
- Automation of spraying and drying by using sensors to control paint usage
- Installation of a VOC removal system
The figure below shows the VOC removal process.
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Benefits: By implementing the air pollution reduction programme, Fook Tin was able to reduce its impact on air quality, enhance productivity, remove potential health hazards for workers, improve product quality, and also meet the Guangdong authorities' air emission target. Fook Tin was also able to achieve a handsome annual saving. The repayment period for the investment is about 4 years.
 | Workers lining up units to be sprayed |  | The VOC removal system on the roof of the factory |
