[论文解读] Analysis of a wet scrubber network in the air remediation of industrial workplaces: benefit for the city air quality

Alessandro Avveduto, Cesare Dari Salisburgo+7 more|arXiv (Cornell University)|May 17, 2015

Air Quality and Health Impacts参考文献 7被引用 3

一句话总结

本研究评估了在工业场所中用于室内空气净化的三级湿式洗涤器网络，证明在玻璃纤维工厂和废热发电厂中，挥发性有机化合物（VOC）减少了40%，且对PM>1的抑制效果显著。该系统循环利用净化后的空气，提升了工人安全，并减少了工业源对城市空气的污染。

ABSTRACT

Industrial activities carried out in confined spaces are characterized by a very specific type of air pollution. The extended exposure to this kind of pollution is often highly harmful, resulting in dramatic effects both on health and safety aspects. The indoor industrial abatement systems, adopted to purify the air, are typically applied to the emission points. The processed air is subsequently emitted outside. In this study we present the experimental results of three-stage wet scrubber systems installed in the industrial workplace of a (i) fiberglass processing plant, where the highest exposure levels to volatile compounds are nowadays today monitored,and of a (ii) waste-to-energy plant, characterized by a very high particulate matter level. The adopted technology, to be used as complementing strategy,does not require special disposal procedures and the processed air is re-emitted in the same work environment for the benefit of the work operators. The operation of the scrubbers network during the working activities, in both the examined environments, has a) reduced the level of volatile compounds by about 40% and b) maintained the particulate matter concentration PM > 1 to a very low level. Industrial plants are disseminated in mega-cities and represent dangerous diffuse pollution emission sources. Remediation of highly polluted industrial plants inside our towns, especially for the conventionally untreated emissions, is of extreme benefit for the cities air quality.

研究动机与目标

• 评估三级湿式洗涤器网络在减少工业工作场所室内空气污染物方面的有效性。
• 评估洗涤器系统在高排放工业环境中对挥发性有机化合物（VOCs）和颗粒物（PM>1）的影响。
• 探究厂内空气净化系统在减少位于大都市区的工业设施所产生的面源工业污染方面的潜力。
• 展示一种无需处置的可持续空气净化策略，可提升工人安全并改善城市空气质量。

提出的方法

• 在玻璃纤维加工工厂和废热发电厂安装并运行三级湿式洗涤器网络。
• 在受限工业空间内的排放点应用洗涤器系统。
• 将净化后的空气循环回工作环境，以维持室内空气质量。
• 在洗涤器部署前后监测VOC和PM>1浓度。
• 利用实验数据量化污染削减效果和系统性能。
• 评估该系统作为现有减排策略的补充，且无需特殊废物处理程序。

实验结果

研究问题

• RQ1 三级湿式洗涤器网络在多大程度上可降低工业工作场所中的挥发性有机化合物（VOC）浓度？
• RQ2 该洗涤器系统在高排放工业环境中对颗粒物（PM>1）的控制效果如何？
• RQ3 当工业设施位于大都市区时，厂内空气净化对城市空气质量有何影响？
• RQ4 洗涤器网络是否可在无需特殊废物处理程序的前提下实施，同时保持空气质量的改善？

主要发现

• 在玻璃纤维加工工厂中，湿式洗涤器网络使挥发性有机化合物（VOC）浓度降低了约40%。
• 在废热发电厂安装洗涤器后，颗粒物（PM>1）浓度维持在极低水平。
• 该系统有效处理了来自两种不同工业源的高污染负荷排放物：VOC和PM>1。
• 洗涤器网络在无需特殊处置程序的情况下运行，支持了其可持续实施。
• 净化空气的循环利用改善了工人的室内空气质量，且未向室外环境释放污染物。
• 本研究证实，厂内洗涤器系统可显著减少来自分散工业源的城市空气污染。