<3.89%), and stack emissions (0.01%–0.05%). Atmospheric emission factors of Tl from different CFPPs are in the range of 0.04–0.09 mg Tl·t−1 coal, 0.02–0.04 μg·(kW·h)−1, or 0.002–0.004 g Tl·TJ−1. Using these emission factors, a total of 3.96 ± 1.32 kg (range: 2.64–5.94 kg) Tl is estimated to be released into the atmosphere annually from CFPPs in Guizhou in 2017. To avoid the cross-media contamination from the combustion products, careful treatment of the captured fly ash, bottom ash, and gypsum is needed, considering that a large amount of Tl (average: 728 kg·yr−1; range: 664–792 kg·yr−1) is retained in these solid combustion products and the possibility of formation of more toxic Tl3+ during the combustion process.
意义:铊(T1)是一种罕见但有毒的元素。识别和量化其来源是控制其污染的高优先级。燃煤发电厂(CFPPS)被认为是TL的重要来源但是,这一领域对少数实地研究进行了。在本文中,我们调查了五个粉煤电厂发电厂的TL的命运据贵州省,中国西南部,发现堆气中的TL浓度为0.006-0.011μg·nm-3,占TL总输入的0.05%偏离环境大气。大多数TL(总产量的88.7%-97.4%)被ESP / ESP-FF飞行灰烬扣除。与2017年从古卓的CFPPS排放到大气层的小额(〜4千克YR-1)相比,每年更多的TL(超过700公斤)最终在固体煤燃烧产品中最终,这使得需要仔细处理这种固体燃烧废物,以防止动员TL进入环境。