Application of Various Adsorbents in Nitrate Removal from Water
- سال انتشار: 1396
- محل انتشار: پنجمین کنفرانس بین المللی نوآوری های اخیر در شیمی و مهندسی شیمی
- کد COI اختصاصی: CHCONF05_055
- زبان مقاله: انگلیسی
- تعداد مشاهده: 539
نویسندگان
M.Sc. Student of Irrigation and Drainage, Faculty of Aburaihan, University of Tehran
M.Sc. Student of Irrigation and Drainage, Department of Water Engineering, University of Zabol
M.Sc. Student of Water Resources Engineering, Department of Water Engineering, University of Zabol
چکیده
Subsurface tile drainage is critical for crop production agriculture and the playability of managed, recreational turfgrass (i.e., golf courses and athletic playing fields). Tile drainage is primarily designed to rapidly convey water from a site, especially in the case of a storm event. Drainage networks rapidly, efficiently, and economically remove excess water from a site, thus permitting traffic for planting, harvest, and recreation. However, the environmental impacts attributed to subsurface drainage may outweigh the economic benefits. Identifying, testing, and implementing practices or strategies that reduce the environmental impacts of subsurface drainage are required to maintain a balance of productivity and environmental services. Discharge from subsurface tile drains is known to carry elevated levels of dissolved pollutants such as phosphor, nitrogen, and pesticides. Moreover, subsurface drainage that conveys discharge directly into streams and ponds bypasses natural and managed filter processes, including upland and riparian buffer zones. As a consequence, excess NO3‐N discharged into the Mississippi River has led to a growing hypoxic area downstream in the Gulf of Mexico. So agriculture is the most extensive source of nitrate-N to groundwater and increases in nitrate-N within shallow groundwater due to modern agricultural practices have been well documented. The efficiency of N applied and ultimately consumed by humans or livestock is generally low, with approximately 33% of all N added to agroecosystems consumed by humans or livestock, while 65% is lost to the atmosphere or aquatic ecosystems. Additionally it has been estimated that in the US, farmers typically over fertilize with N by 24 to 38%. As a result of this low efficiency, nitrate-N concentrations in shallow groundwater underneath agricultural lands exceed the maximum contaminant level (MCL = 10 mg L−1) in 19% of samples nationwide. In addition to fertilizer efficiency improvements, edge of field remediation processes can help achieve water quality standards for N. Since the nitrate is a stable and highly soluble ion with low potential for coprecipitation or adsorption. Thus conventional treatment technologies cannot be used. In this study, application of various adsorbents in nitrate removal from water it was discussed.کلیدواژه ها
Tile drainage, Environmental impacts, Nitrate, conventional treatmentمقالات مرتبط جدید
- سنتز نانو ماده اکسیدگرافن و بررسی تاثیر آن بر روی مقاومت شیمیایی رنگ آلکیدی
- پیش بینی نرخ های تولید چندفازی (نفت، گاز و آب) با استفاده از روش های یادگیری ماشین: مرور بر روش ها و کاربردها
- روشهای کنترل داده محور در مهندسی شیمی
- بررسی جداسازی گاز پروپیلن از پروپان در غشای ۶FDA-durene با استفاده از روش شبیه سازی مولکولی
اطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.