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ارزیابی چرخة حیات سنتز کربن نیترید گرافیتی با رویکرد استفاده در صنایع مستقر در حوضۀ خلیج فارس | ||
| نشریه محیط زیست طبیعی | ||
| دوره 74، شماره 4، اسفند 1400، صفحه 855-868 اصل مقاله (483.17 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jne.2022.326730.2245 | ||
| نویسندگان | ||
| نرگس مهبودی1؛ محسن نوروزی* 2؛ هاجر آبیار3 | ||
| 1دانشجوی کارشناسی ارشد، گروه علوم و فناوری زیستی، دانشکده علوم و فناوری نانو و زیستی، دانشگاه خلیج فارس، بوشهر، ایران | ||
| 2استادیار گروه علوم و فناوری زیستی، دانشکده علوم و فناوری نانو و زیستی، دانشگاه خلیج فارس، بوشهر، ایران | ||
| 3استادیار گروه محیط زیست، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران | ||
| چکیده | ||
| استفاده از فتوکاتالیست ها به‌منظور حذف آلاینده ها به‌دلیل ویژگی های منحصر به فرد خود، در سال های اخیر مورد توجه محققان قرار گرفته است. کربننیتریدگرافیتی (g-C3N4) از جمله به‌روزترین و کارآمدترین فتوکاتالیست های سازگار با محیطزیست است اما استفاده از ترکیبات نوآرا، بدون توجه به ارزیابی چرخۀ حیات آن ها منطبق بر نگرش توسعۀ پایدار نیست. در مطالعه حاضر برای نخستین بار ارزیابی چرخۀ حیات فتوکاتالیست g-C3N4 استفاده شده جهت گوگردزدایی پساب صنایع منطقۀ پارس‌جنوبی در سواحل خلیج فارس انجام شد. در این پژوهش جهت ویژه سازی مصرف آب از روش ReCiPe، محاسبة میزان مصرف انرژی از روش CED، محاسبۀ انتشار گازهای گلخانه ای از روش GGP و ردپای بوم شناسی از روش EP استفاده گردید. نتایج به‌دست آمده نشان داد که بیشترین تأثیر محیطزیستی سنتز g-C3N4، عمدتاً بر روی بومسازگان های آبی و به‌ویژه بوم سم شناسی آب دریا و آب شیرین با مجموع 74/06% و در درجۀ دوم بر روی سمیت انسانی (6.15%) است. آثار مخرب محیطزیستی به کمک بهرهگیری از شاخصهای نهایی نیز به ترتیب بهصورت آسیب به منابع (63/05%)> آسیب به سلامت انسان (34/56%)> آسیب به بومسازگان (2.39 %) برآورد گردید. آنالیز حساسیت نیز مصرف الکتریسته را بهعنوان موثرترین پارامتر بروز آثار مخرب محیطزیستی تعیین نمود. بر اساس نتایج به‌دست آمده می توان بیان داشت که بهره گیری از انرژیهای تجدیدپذیر و جایگزینی آنها با منابع فسیلی، میتواند نقش موثری در کاهش پیامدهای محیطزیستی حاصل از سنتز g-C3N4 ایفا نماید. نتایج حاصل از این مطالعه می تواند بهعنوان راهبردی مقدماتی در زمینۀ ارزیابی چرخۀ حیات ترکیبات نوآرا، پیش از کاربست بزرگ مقیاس آنها استفاده شود. | ||
| کلیدواژه‌ها | ||
| ارزیابی چرخة حیات؛ کربن نیترید گرافیتی؛ گازهای گلخانه‌ای؛ بو‌م‌شناسی دریایی؛ میزان تقاضای انرژی | ||
| عنوان مقاله [English] | ||
| Life cycle assessment of graphite carbon nitride synthesis with application approach in industries located in the Persian Gulf basin | ||
| نویسندگان [English] | ||
| Narges Mehboudi1؛ Mohsen Nowrouzi2؛ hajar abyar3 | ||
| 1M.Sc. Student, Department of Science and Biotechnology, Faculty of Nano and Bio Science and Technology, Persian Gulf University, Bushehr, Iran | ||
| 2Assistant Professor, Department of Science and Biotechnology, Faculty of Nano and Bio Science and Technology, Persian Gulf University, Bushehr, Iran | ||
| 3Assistant Professor, Department of Environmental Sciences, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran | ||
| چکیده [English] | ||
| The use of photocatalysts to remove contaminants has received more attention in recent years due to its unique properties. Carbon nitride graphite (g-C3N4) is one of the most up-to-date and efficient types of environmentally friendly photocatalysts. It should be noted that the use of novel compounds without considering the evaluation of their life cycle is not consistent with the attitude of sustainable development. In the present study, for the first time, an LCA analysis was performed for the g-C3N4 photocatalyst used to desulfurize industrial effluents in the South Pars region, on the shores of the Persian Gulf. In this case, the ReCiPe method was used to specialize in water consumption, chemical energy demand (CED) for calculating energy consumption, greenhouse gas protocol (GGP) for calculating greenhouse gas emissions, and ecological footprint (EP) method. The results showed that the greatest environmental impact of g-C3N4 synthesis mainly appeared in aquatic ecosystems, in specific marine and freshwater ecotoxicity with a total of 74.06% and by human toxicity (6.15%). The final indicator application showed the destructive environmental effects as follows: resources (63.05%) > human health (34.56%) > ecosystems (39.39%), respectively. Sensitivity analysis also determined the consumption of electricity as the most effective parameter for the occurrence of harmful effects on the environment. Therefore, based on the obtained results, it is stated that the use of renewable energies and their replacement with fossil-based energy sources can play an effective role in reducing the environmental consequences of the g-C3N4 synthesis. The results of this study can be also used as a preliminary strategy to conduct further studies in the field of LCA and environmental impact assessment of novel compounds before their large-scale application. | ||
| کلیدواژه‌ها [English] | ||
| Life Cycle Assessment, Graphite Carbon Nitride, Greenhouse Gases, Marine Biology, Energy Demand | ||
| مراجع | ||
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