واکنشگرهای شیمیایی/کاتالیستی فعال شونده توسط نور
ترجمه نشده

واکنشگرهای شیمیایی/کاتالیستی فعال شونده توسط نور

عنوان فارسی مقاله: واکنشگرهای شیمیایی/کاتالیستی فعال شونده توسط نور نوآورانه به سوی آلوده کننده های در حال ظهور
عنوان انگلیسی مقاله: Innovative light-driven chemical/catalytic reactors towards contaminants of emerging concern mitigation: A review
مجله/کنفرانس: مجله مهندسی شیمی – Chemical Engineering Journal
رشته های تحصیلی مرتبط: شیمی
گرایش های تحصیلی مرتبط: شیمی کاتالیست، شیمی محیط زیست
کلمات کلیدی فارسی: رآکتورهای نوری، تشدید فرایند، طراحی رآکتور، فرایندهای کاتالیسی/شیمایی القا شده با نور
کلمات کلیدی انگلیسی: Photoreactors, Process intensification, Reactor design, Light induced chemical/catalytic processes.
نوع نگارش مقاله: مقاله مروری (Review Article)
نمایه: Scopus – Master Journals List – JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.cej.2020.124865
دانشگاه: University of Porto, Portugal
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2020
ایمپکت فاکتور: 11.315 در سال 2019
شاخص H_index: 198 در سال 2020
شاخص SJR: 2.315 در سال 2019
شناسه ISSN: 1385-8947
شاخص Quartile (چارک): Q1 در سال 2019
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 73
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
آیا این مقاله مدل مفهومی دارد: ندارد
آیا این مقاله پرسشنامه دارد: ندارد
آیا این مقاله متغیر دارد: ندارد
کد محصول: E15057
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست انگلیسی مطالب

Abstract


1- Introduction


2- Insights on contaminants of emerging concern (CECs)


3- Treatment technologies


4- Process intensification


5- Conclusions


Acknowledgments


References

نمونه متن انگلیسی مقاله

Abstract


Urban wastewater treatment plants (WWTPs) are among the major sources of contaminants of emerging concern (CECs) release to surface water. This is mainly associated with the low performance of conventional technologies (e.g. activated sludge, sand filtration and UV disinfection processes) for the removal of residual amounts (ng L-1 – μg L-1) of CECs. In this review, a list of CECs commonly detected in the aquatic environments is presented. Light-driven chemical/catalytic processes for CECs removal, namely UV/oxidant and photocatalysis, are presented with discussion of their process, advantages, drawbacks, and the main attainments. In this context, process intensification has been gaining high relevance for wastewater treatment purposes due to its potential to overcome the main treatment limitations. Accordingly, an overview of advances to overcome the limitations in light-driven chemical/catalytic processes for CECs mitigation was carried out, focusing mainly on the design of novel reactors and devices. Some aspects related to reactor configuration, removal mechanism, devices applied, illumination system, comparison criteria, and catalyst immobilization through implementation of novel reactors designs are also discussed. Regarding the reactor design, several devices exhibit a satisfactory mass transfer due to a large surface-tovolume ratio or enhanced mixing conditions. However, improvements in photon transfer are still the biggest challenge to be overcome. The irradiation of the entire reaction solution and/or catalyst surface has shown to be challenging in many reactor configurations. Nevertheless, the reactor design and treatment process to be applied for CECs removal must be selected according to the site-specific conditions, in order to accomplish CECs mitigation and attain the best reactor performance.


Introduction


About 71 percent of the Earth’s surface is water-covered, however less than 3 percent of this amount can be considered as freshwater [1]. In addition, this limited resource is under threat from the  pollution, mainly caused by human factors. Power generation, industrial, agriculture and mining activities among others are some of the contributors to the aquatic compartments contamination, 6 which affects directly life on Earth [2]. Approximately two-thirds of the world’s population experiences water shortage for at least one month in a year [3]. Additionally, the World Health 8 Organization (WHO) reported that, in the year of 2017, 2 billion people living in various regions all over the world used drinking-water source contaminated with faeces [4]. In fact, it is estimated that almost 1.8 billion people worldwide might face moderate or severe water scarcity by 2025 [5].  Commonly, materials and chemicals used in daily human activities are continuously introduced into the environment. These so-called Contaminants of Emerging Concern (CECs) are one of the main causes of water pollution and, hence, being often related to the risks to human and biota health [6]. Therefore, as water safety and quality are fundamental to human development and well-being, the scientific community has been applying great efforts to the development of efficient technologies for water purification.

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