| 英文摘要 |
This plan collected and analyzed yearly test data of quality and quantity for dioxin and odor producing factories. In order to control the unqualified status and reports of major pollution sources, this plan analyzed the application of the law for the data and established a dioxin and odor producing factory database, which was a reference for the factory evaluation list.
The dioxin producing factory list mainly contained unqualified status. Later the Arc furnace that has no pollution control device and the public reports or public concerns about pollution sources (ex. crematorium ) were added to the list. The pollution sources which the EPA had specifically listed were also added. The odor producing factory list referenced past reports and to the lists created by the EPB. It also referred to the significant index of the public report frequency and the factory scale in order to adjust the list at the conference. This plan helped scholars, experts and the EPB communicate so that related experiences and present source controls could be provided. There were 30 dioxin and 50 odor factories listed for evaluation. Moreover, a meeting was held to explain the follow-up actions to each local EPB resulting in a final factory list for evaluation. The EPA had sent out an official letter to 80 factories on May 28, 2010 in order to complete an on-the-spot evaluation.
This plan collected foreign control targets and strategies of both dioxin and odor pollutants for domestic reference and future control, including pollutant control processes and present regulations in Japan, the European Union, United States, New Zealand and Great Britain.
This plan completed an on-the-spot evaluation of standard processes, and
completed all of the on-the-spot evaluations and examinations in October 2010; these evaluations included 30 dioxin and 51 odor producing factories. It combined opinions from the evaluation committees and established files on 81 evaluated factories. This will be a recommendation to each local EPB for future improvement.
The following are the results from the evaluations.
1) Dioxin is produced at the crematorium due to the combustion of coffin paint and the incineration of various mortuary objects. Furthermore, the crematorium is utilized at high capacity during auspicious days resulting in lower combustion efficiency. Most cremators have exceeded their equipment’s designed life span, or lack the appropriate equipment resulting in dioxin pollution.
2) Concerning the odor pollution of 20 different industries, the sources come from materials, fugitive processes, fugitive on waste water processing station, inappropriate operations and poor design of control equipment. For example, when mixing and heating asphalt, the odor comes from fugitive and venting. Therefore, appropriate equipment design, proper operations and regular maintenance are required.
This plan requested scholars and subject matter experts to draft the technology manual for two dioxin and three odor producing industries. The manual was amended and a counsel meeting was held to revise and finalize the manual. This plan also combined the information of the best available control technology and cost of control equipment for dioxin and odor pollutants. It also analyzed the unit cost of the proper control equipment in order to provide a reference to other related industries for improvement.
According to the past EPA control results for reducing odor pollutants, the draft of control measures was created for the animal husbandry and the compost industry. As to the odor pollution of asphalt mixing in the past two years, this plan combined the control inspection results from the EPA Executive Yuan of north area and the EPB in New Taipei City, and then drafted the control regulations for asphalt mixing. This provides the EPA odor control reference for the follow-up actions.
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