This project had been implemented on the focus and efforts of applying control measurement since 2012 for the air pollutants in Kaohsiung city to reach the announced VOCs regulations compliance and emission reduction target. The overall project performance up to 2013 could be demonstrated into seven main categories including VOCs emission sources inspection and control, leaking detection of equipment and components and control, the technical assistance for VOCs emission reduction, the odor sources patrolling works and control, vapor recovery functional test of petroleum stations, propagation works for VOCs pollution prevention and organizing the local environmental patrolling group for routine inspection.
With regard to VOCs emission sources inspection and control, the on-site inspection of 451 VOCs emission sources in compliance requirement were conducted. The sources included 101 petrochemical industry plants, one Polyurethane synthetic leather plant, 19 semiconductor industry plants, 7 dry cleaning industry plants, 10 photo-electronics industry plants, 4 tape industry plants, 19 varnishes manufacturing plants, 13 PCB manufacturing plants, 4 Plastics industry plants, 3 surface treatment for mobile vehicle industry plants, 3 printing industry plants and 267 petroleum stations. In order to enhance the performance of regulation compliance, propaganda and on-site technical assistance had been implemented by team specialists. Finally, it came to the result increasing rate of tape industry plants from 67% the very beginning to 100% the end of project and petrochemical industry plants from 34% to 92%, in accordance with overall VOCs regulation.
With regard to leakage detection of equipment and components and control, 30,021 units in production process and 5,819 units in loading and unloading zone were detected by deploying of TVA-1000B detector during project period. The leakage rate was 0.97% by 213 units in process and 0.91% by 74 units in tank zone, and 1.27% by 74 units in the loading and unloading zone. Also Gas Find FLIR was applied by 200 hours process fugitive leakage monitoring with overall screening of 20,000 potential fugitive points and 160 samplings were detected leakage. The emission reduction after repairing and maintenance was estimated 244.7 ton per year. The leakage conc. standard in Kaousiung had been regulated more stringent from 10,000 ppm to 2,000ppm under the authority of Taiwan Clean Air Act since 2012. From this project some action plans were taken to minimize the fugitive leakage and following emission reduction, such as the on-site technical and management education to build up more integrated active repairing and maintenance program by the deploying of FLIR, TVA and PID detectors, and also the penalty was imposed once they were not well maintained according to regulation standard. The effect could be demonstrated by the increasing rate in accordance to the leakage definition standard of 1000ppm from 98.67% to 99.08%, the change rate from 0.43% to 0.1% among 2,000~10,000ppm, and the leakage limitation rate of above 10,000ppm was lowered from 0.47% to 0.11%.
With regard to the technical assistance for VOCs emission reduction, the specialists group was formulated to implement the VOCs emission reduction for important potential pollutants by on-site diagnosis and providing technical consulting and applicable improvement suggestions. Twelve plants were conducted this process and six of them had been traced and found new installation of pollution prevention facilities causing an estimation of 76.4 ton per year VOCs reduction. The other six plants were taking measurements by the operation tuning and maintenance to reach the improvement.
With regard to the odor sources patrolling works and control, 14,310 patrolling records in 157 days had been conducted among the major industries in Kaohsiung, frequent odor complaint roads and plant sites. According to the results of odor intensity and frequency, the odor sampling and analysis were implemented. The VOCs analysis result of two out of 17 stacks were not in accordance with the regulation standard. The odor sampling and analysis at the ambient boundary and stacks of plants showed three and six were not in accordance with the regulation standard, separately. And also the required technical improvement suggestions were provided actively.
With regard to vapor recovery functional test of petroleum stations, the air to liquid tests had been conducted for all stations and found 93.8% in accordance with the regulation. Also for self-control and facility maintenance purpose, technical training, propagation and evaluation works were included to enhance the overall recovery efficiency.
In order to propagate the recent enacted regulation with more stringent leakage limitation standard, 2,000 regulation pamphlets and flyers and 1,000 promotional products had been distributed among a series of technical training and transfer courses and symposium in this project. And also some major topics and project performance were post and announced via local city news or internet webs.
For the prevention of air pollution complaint and maintaining better air quality, this project team took head to recruit 43 more members to the organization of Dalinpu Area Environmental Patrolling Assistance Volunteers to strengthen the local patrolling group for routine pollution inspection and response. The standard procedure and series of technical training were conducted to educate and build-up their ability for better understanding of related knowledge and skills.
