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首页> 外文期刊>Journal of Environmental Management >Volatile organic compound emissions from wastewater treatment plants in Taiwan: Legal regulations and costs of control
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Volatile organic compound emissions from wastewater treatment plants in Taiwan: Legal regulations and costs of control

机译：台湾废水处理厂的挥发性有机化合物排放量：法律法规和控制成本

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This study assessed volatile organic compound (VOC) emission characteristics from wastewater treatment plants (WWTPs) in five Taiwanese industrial districts engaged in numerous manufacturing processes, including petrochemical, science-based industry (primarily semiconductors, photo-electronics, electronic products and biological technology), as well as multiple manufacturing processes (primarily Pharmaceuticals and paint manufacturing). The most aqueous hydrocarbons dissolved in the wastewater of Taiwanese WWTPs were acetone, acrylonitrile, methylene chloride, and chloroform for the petrochemical districts; acetone, chloroform, and toluene for the science-based districts; and chlorinated and aromatic hydrocarbons for the multiple industrial districts. The aqueous pollutants in the united WWTPs were closely related to the characteristics of the manufacturing plants in the districts. To effectively prevent VOC emissions from the primary treatment section of petrochemical WWTPs, the updated regulations governing VOC emissions were issued by the Taiwanese Environmental Protection Administration in September 2005, legally mandating a seal cover system incorporating venting and air purification equipment. Cost analysis indicates that incinerators with regenerative heat recovery are optimal for treating high VOC concentrations, exceeding 10,000 ppm as CH_4, from the oil separation basins. However, the emission concentrations, ranging from 100 to 1000 ppm as CH4 from the other primary treatment facilities and bio-treatment stages, should be collected and then injected into the biological oxidation basins via existing or new blowers. The additional capital and operating costs required to treat the VOC emissions of 1000ppm as CH_4 from primary treatment facilities are less than US$0.1 for perm~3 wastewater treatment capacity.
机译：这项研究评估了台湾五个工业区废水处理厂（WWTP）的挥发性有机化合物（VOC）排放特性，这些工业区从事许多制造过程，包括石化，基于科学的工业（主要是半导体，光电子，电子产品和生物技术） ，以及多种制造过程（主要是制药和油漆制造）。在石化区，台湾污水处理厂废水中溶解的烃最多的是丙酮，丙烯腈，二氯甲烷和氯仿。用于科学园区的丙酮，氯仿和甲苯；以及用于多个工业区的氯化烃和芳香烃。联合污水处理厂中的水污染物与该地区生产工厂的特征密切相关。为有效防止石化废水处理厂一级处理段中的挥发性有机化合物排放，台湾环境保护总局于2005年9月发布了有关挥发性有机化合物排放的最新法规，合法地规定了包含通风和空气净化设备的密封盖系统。成本分析表明，具有再生热量回收能力的焚化炉是处理来自分油盆的高VOC浓度（CH_4含量超过10,000 ppm）的最佳选择。但是，应收集其他一级处理设施和生物处理阶段的CH4排放浓度范围为100至1000 ppm，然后通过现有或新的鼓风机将其注入生物氧化池。对于perm〜3废水处理能力而言，处理来自主要处理设施的CH_4作为CH_4排放的1000ppm VOC所需的额外资本和运营成本低于0.1美元。

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