Adsorption Characteristics and Transport Behavior of Cr(VI) in Shallow Aquifers Surrounding a Chromium Ore Processing Residue (COPR) Dumpsite
المؤلفون المشاركون
Liu, Yu
Li, Yin
Hu, Yucheng
Mostofa, Khan M. G.
Li, Siliang
Liu, Zhenying
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-11-03
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
This study explored the stratigraphic distribution and soil/shallow aquifer characteristics surrounding a chromium ore processing residue (COPR) dumpsite at a former chemical factory in China.
Total Cr levels in top soils (5–10 cm) nearby the COPR dumpsite were in the range of 8571.4–10711.4 mg/kg.
Shallow aquifers (1–6 m) nearby the COPR dumpsite showed a maximum total Cr level of 9756.7 mg/kg.
The concentrations of Cr(VI) in groundwater nearby the COPR dumpsite were 766.9–1347.5 mg/L.
These results display that the top soils, shallow aquifers, and groundwater of the study site are severely polluted by Cr(VI).
Then, three aquifers (silt, clay, and silty clay), respectively, collected from the depth of 1.4–2.4 m, 2.4–4.8 m, and 4.8–11.00 m were first used to evaluate the adsorption characteristics and transport behavior of Cr(VI) in shallow aquifers by both batch and column experiments.
The adsorption of Cr(VI) on tested aquifers was well described by pseudo-second-order equation and Freundlich model.
The adsorption capacities of Cr(VI) on three aquifers followed the order: clay > silty clay > silt.
The kinetics proved that Cr(VI) is not easily adsorbed by the aquifer mediums but transports with groundwater.
Thermodynamics indicated that Cr(VI) adsorption on tested aquifers was feasible, spontaneous, and endothermic.
Cr(VI) adsorption on tested aquifers decreased with increasing pH.
Furthermore, the transport of Cr(VI) in adsorption columns followed the sequence of clay < silty clay < silt.
Desorption column experiments infer that the Cr(VI) adsorbed on aquifers will desorb and release into groundwater in the case of rainwater leaching.
Therefore, a proper treatment of the COPR and a comprehensive management of soils are vital to prevent groundwater pollution.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liu, Yu& Li, Yin& Hu, Yucheng& Mostofa, Khan M. G.& Li, Siliang& Liu, Zhenying. 2019. Adsorption Characteristics and Transport Behavior of Cr(VI) in Shallow Aquifers Surrounding a Chromium Ore Processing Residue (COPR) Dumpsite. Journal of Chemistry،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1171140
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liu, Yu…[et al.]. Adsorption Characteristics and Transport Behavior of Cr(VI) in Shallow Aquifers Surrounding a Chromium Ore Processing Residue (COPR) Dumpsite. Journal of Chemistry No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1171140
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liu, Yu& Li, Yin& Hu, Yucheng& Mostofa, Khan M. G.& Li, Siliang& Liu, Zhenying. Adsorption Characteristics and Transport Behavior of Cr(VI) in Shallow Aquifers Surrounding a Chromium Ore Processing Residue (COPR) Dumpsite. Journal of Chemistry. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1171140
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1171140
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر