Work plan to be completed: (1) On-site inspection and documentation of the operational compliance of 41 Dioxin emission source factories; (2) On-site supervision of 113 Dioxin emission source declaration materials, inspection report review and documentation, and 31 factory inspections, regular check, improvement, operation permit application, etc.; (3) Dioxin inspection of 20 discharge pipelines; (4) detection of heavy metal emission characteristics of 5 key industrial pipelines; (5) PM2.5 emission characteristics detection of 7 key industrial pipelines; (6) 3 places of environmental air dioxins concentration monitoring in 2-season Dioxin pollution-concentrated areas and Taoyuan Agricultural Monitoring Station of Environmental Protection Agency; (7) Verification of odor pollution sources and establishment of air pollutant data in Haihu Kengkou Industrial Zone of Luzhu District (8) EPA Air Quality Monitoring Station - Guanyin ambient air pm2.5 monitoring and data analysis; (9) Survey of SO3 and salt emission characteristics in P030 Flue Gas of CPC Taoyuan Oil Refinery, M27 processing heavy oil sample’s vanadium concentration of CPC Taoyuan Oil Refinery, Boamax Industrial, E-Kay, and other components of the raw materials used in the pollution source processing, to assist in confirming the amount of air pollution payment, monitoring of environmental atmospheric HAP concentration, and support the investigation and test of totally 29 samples of environmental pollution cases; (11) To hold a briefing session; (12) Thermal induction high-resolution camera drone purchasing and operator training.
The plan examines the test reports, test plans and other relevant data of 113 Dioxin emission sources in Taoyuan City, and performs the on-site test supervision of 31 Dioxin emission sources. The plan personnel monitor and check the factory feed volume and the pollution prevention equipment operation in the sampling process, which comply with the regulations and the specifications.
On-site inspections totally check 41 Dioxin emission sources. The inspection work aims at the on-site operating parameters such as the amount of Dionix emission sources, the operation of incineration equipment, the operation status of pollution control equipment, and the sampling facility conditions by the scientific instruments. In the inspection of this year, the combustion gas analyzer is used to conduct the on-site inspection of CO in the exhaust gas of Dioxin emission source. It finds that CO hourly average of several solid waste incinerators is 100 ppm higher than CO hourly average specification of the small and medium-sized waste incinerator in Dioxin control and emission standards, and 120 ppm of the waste incinerator air pollutant emission standard; the waste-fueled boiler also has the problem of high CO monitoring concentration, especially for boilers with mixed sludge.
In the inspection execution of 20 tubes of Dioxin emission source, there is one not conforming to the standards, RIHUAN Technology (small medical waste incinerator), and confirms Dioxin has significantly reduced after the pollution sources and control equipment have been improved in Taiwan Everlight Chemical Third Factory, TUNG-DING, and BAOFU XINGYE; audits Lusheng and Dazheng Asphalt adopting new materials and milled materials as the asphalt mixing materials, and confirms the Dioxin emissions from different materials; finds OPAC monitoring value of Cheng Loong Dayuan Mill is greater than 4%, and the filter bag is damaged, so Dioxin may be over the standard; Xinrong Company is prone to abnormal operation after one week of incineration, and Dioxin may be over the standard; the combustion gas amount is adopted to measure the average hourly concentration of CO in RIHUAN, and the measured concentration of CO is 10.0 ~ 76,360 ppm, with an average of 2,757 ppm. On-site understanding of the operation status finds that one of the medical wastes collected by the factory is the waste injection needles, whose heat value is too high (7,000 kcal/kg or more), which will be burned violently and immediately in the incinerator, and the oxygen demand will be large, so that there will be incomplete combustion.
For 2017 Dioxin emission estimate in Taoyuan City, the total emission of the pollution source Dioxin is 3.608 g-TEQ/year, which is about 1/14 of the 2017 national discharge of Dioxin (52.1 g-TEQ/year) estimated by Environmental Protection Agency.
The two seasons of ambient air dioxin testing has been completed. The sampling points are Shuimei Engineering Office Building, Guanyin District Shuoshi Primary School, and Taoyuan Agricultural Monitoring Station. The average concentration of 3 sampling points in August of 2017 was 0.030 pg-TEQ/Nm3, ranging from 0.020 to 0.040. pg-TEQ/Nm3; the average concentration of 3 sampling points in February of 2018 was 0.097 pg-TEQ/Nm3, ranging between 0.018 ~ 0.218 pg-TEQ/Nm3. The monitoring values of the three sampling points are lower than the annual average 0.6 pg-TEQ/Nm3 of the ambient air quality in Japan.
The plan has investigated the PM2.5 emission characteristics of five types of pollution sources, such as gas boilers, incinerators, oil-fired boilers, coal-fired boilers, and printing and dyeing finishing machines. The oil-fired boilers are subdivided for oil types and with or without control equipment; according to the results of FPM2.5 and CPM2.5 emissions, the emission concentration of gas boilers is relatively low and stable, and the emission concentration of most samples is mainly FPM; for the investigation of PM2.5 emissions of oil-fired boilers, at present, the concentration of FPM is that the heavy oil boiler without control equipment = heavy oil boiler with control equipment > diesel boiler, and the CPM concentration is that the heavy oil boiler without control equipment > heavy oil boiler with control equipment > diesel boiler, which shows the oil-fired boilers installed with control equipment have some removal capacity for PM2.5.
This plan manually samples and analyzes the online gas in the atmosphere with PQ200 and Harvard sampler and the PM2.5 components by gas component monitor at Guanyin Air Quality Monitoring Station. From the analysis data, the correlation between PM2.5 and Cl-, NO3-, NH4+ and SO42- is high. Judging the pollution source of the highly correlated components, it can be found that NO3- and HNO2- are from the southwest. From the relative position data of the station and the adjacent pollution source, the source should be Tatan Power Plant; Cl-, SO42-, NH4+, and NH3 come from the northwestern west. The location is Taoyuan Environmental Science and Technology Park. At present, there are many incinerators in the park. Three of them are equipped with SNCR. SNCR usually results in excessive NH3 injection and ammonia escape caused by mixing unevenly, NH4+ and NH3 are thus measured at Guanyin Station, and Cl- and SO42- are also the pollutants emitted by the incinerator.
The plan verifies the high concentration of vinyl chloride (VCM) through the implementation of odor pollution source investigation in Haihu Primary School, which drifts from the northeast of Haihu Primary School; through the comparison data to the check results of previous year in the fixed pollution source management system, it confirms that it is caused by M01 processing - polyvinyl chloride plastics manufacturing process dispersal of Taoyuan Factory of Ocean Plastics Co., Ltd. On April 27, 2018, Taiwan Manning checks the equipment component and finds that there are still sewage pipes uncovered and the concentration is as high as 2,000 ppm, and the Company's responsible personnel confirm that the high value of vinyl chloride occurs when there is PVC polymerization tank grooving operation, resulting in the increase in the perimeter concentration of the downwind area; the acetone, methylene chloride, cyclohexane, and methanol are drifted from the southeast of Haihu Elementary School; through the comparison in the fixed pollution source management system, it finds it was contributed by Formosa Laboratories Inc. Luzhu Plant and Luzhu Second Plant - other western medicine manufacturing procedures.
This plan assists in the problem that the pipe P030 has a white smoke tailing and is not easy to dissipate of the catalyst refining process (M27) of CPC Taoyuan Oil Refinery in the exhaust emission analysis and investigation. P030 flue gas has a high concentration of sulfate of 20.1 mg/m3, followed by nitrate of 0.684 mg/m3, chloride salt of 0.611 mg/m3, and the annual discharge is 45.0 metric tons. According to the literature, the fine particles formed by the salt should be the cause of the white smoke tailing and high opacity; the literature data also shows H2SO4 and fine particles in the flue gas will have a significant effect on the opacity. If the flue gas contains 16 ppm H2SO4 and 5 mg/m3 fine particles less than 1 micron in diameter, the opacity will be greater than 35%.
