The scope of work of this project includes: draft the emissions standards for air pollutants emitted from the glass manufacturing industry. And to enhance the review and draft of all the relevant air pollutant emissions standards for stationary pollution sources. The details are as follows： (1)Complete the draft air pollutant emission standards for glass manufacturing industry 1. Revise NOx emission standard：Current NOx emission from the traditional glass furnaces has already complied with the existing BACT regulation, recently the LCD glass furnaces expand rapidly and their NOx emission is higher compare with the traditional glass furnaces. Besides，the NOx concentrations are higher from the oxyfuel combustion compared with the airfuel combustion , however NOx emission coefficient of the former is lower. Because of this characteristic，NOx concentration will be regulated for those with airfuel combustion. And the emission coefficient will be regulated for those with oxyfuel combustion. According to the international trend and technical, economic as well as administrative feasibility, the NOx emission standards are revised as: 300 ppm for those with airfuel combustion and 2.22 kg/Gcal for those with oxyfuel combustion. 2. Requirement for Arsenic-free process: Based on this year’s investigation data, Arsenic concentration emitted from those with airfuel combustion were between 810-4~410-3 mg/Nm3, which is lower than the emission standards (0.5~1mg/Nm3) in other countries. Based on the above data, the maximum total emission is calculated to be 0.002 ton Ar/year, which is also lower than the US NESHAP’s standard for newly built glass furnaces (0.44 ton Ar/year). Simulation was also done by applying the above investigation data with ISC model, the estimated maximum ground concentration is 0.07 ng As/Nm3 (annual average)，which is also lower then the EU environmental air quality guideline ( 6 ng As /Nm3 ). The above data show that air quality was improved significantly after applying Arsenic-free process or APCD (Air Pollution Control Device) by the glass furnaces factories. However, the Arsenic incident at Taichung Science Park indicated that inadequate operation of the APCD may pose significant impact on surrounding environment. Therefore, we suggest that the Taiwan EPA can request mandatory installation of dust detector to prevent baghouse leakage，or request for the use of arsenic-free process. As the arsenic-free process is adopted internationally, and it is also technical feasible，the EPA advisory counselor suggest to push for arsenic-free process. 3. Review of other standards: We suggested the calibration base for oxygen content in the exhaust to be revised to 15%; to increase the emission standards for particles in exhaust to be 50mg/Nm3; and to increase emission standards for SOx in exhaust to be 100ppm. (2) To review and revise the emissions standards of Stationary Pollution Source Air Pollutants 1. SOx：We suggested promoting usage of liquid fuel with sulfur content less than 0.3% at the KaoPing Air Quality Area, and the SOx emission standard to be set at 150ppm based on the mass balance calculation. 2.NOx：We suggested that NOx emission concentration from the existing stationary pollution sources should comply with the NOx standard required for newly established stationary pollution sources within specific timeframe. Newly established stationary pollution sources should adopt low nitrogen combustion technology, and their total NOx emission should be 20% lower than the present one. Which means the newly established stationary pollution sources should adopt LNB technology. 3. Particulate matter: For solid fuel, the particulate emission standard will be set at 50 and 150mg/Nm3 according to their operational scale. For non-solid fuel, the particulate matter emission standard will be set at 50, 100 and 150 mg/Nm3 according to their operational scale. 4. CO：Current CO emission standard is 2000 ppm, we suggested the followings to be added in the regulation ‘For Metal smelting process using coke or coal as reductant or other processes authorized by central competent authorities, the CO control standard can be adopted from the estimated concentration resulted from air quality modeling that will comply with the local air quality standard.’ 5. Adjustment of other Articles: Article 5 was revised as ‘When it is not possible to select a appropriate testing location for an area outside the peripheral boundary of a public or private premises (for example, due to topographic constrain or presence of public facilities), then an appropriate testing location can be chosen within three meters inside the surrounding boundaries of the factory.’ Article 6 was revised as ‘sampling collection times for peripheral boundary testing shall be one hour for particulate matter pollutants, and can be executed continuously.’ Article 10 was revised as ‘Those public and private premises that adopt pollution control measures or process improvement which can effectively reduce air pollutant emission and the emission concentration is 40% lower than the emission standards shall submit written data to the local competent authority, and after receiving approval, may build an emissions pipe lower than the specified height in designated in Article 10.」

Glass Manufacturing Industry、Emissions Standards、Stationary Pollution Sources