Studies on Contaminated Mine Soil and Its Remediation Using Soil Washing Technique - A Case Study on Soil at Kolar Gold Fields
محل انتشار: ماهنامه بین المللی مهندسی، دوره: 35، شماره: 1
سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 155
فایل این مقاله در 12 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_IJE-35-1_023
تاریخ نمایه سازی: 10 اردیبهشت 1401
چکیده مقاله:
Uncontrolled mining and the tailings produced can cause significant environmental impacts such as water, air, and soil pollution. In the present study, a contaminated soil of gold mines located in Karnataka state of India was studied to know the geotechnical behavior of this soil as a foundation material and to suggest a suitable soil remediation technique to avoid contamination of surrounding water bodies. The in-situ dry unit weight of soil at the selected locations varied from ۱۵.۷۱ to ۱۸.۷۵ kN/m۳. The effective shear strength parameters determined from Triaxial test results were in the range of ۴.۸ – ۸.۲ kN/m۲ and ۱۹.۴۰ – ۲۹.۸۰, respectively, for the cohesion and angle of internal friction. The soil samples were analyzed for bearing capacity and settlement using GEO۵ software tool, and the economical dimensions of the footings were estimated. It was observed that the soil has sufficient bearing capacity, and the settlements are within the allowable range. The chemical analysis of the soil samples showed considerable amounts of heavy metals present in the mined soil. Though the strength of the soil is good, the contaminants in the soil may cause groundwater contamination and damages to the footings. Hence, the soil washing technique as a remediation technique was also studied through column leaching tests using different leaching solutions and found that diluted Hydrochloric acid (HCl) with Ethylenediaminetetraacetic acid (EDTA) can effectively remove the heavy metals from the soil.
کلیدواژه ها:
نویسندگان
Sumalatha J
Department of Civil Engineering, M S Ramaiah Institute of Technology, Bangalore, India
M. Kumar C. L.
Department of Civil Engineering, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, Karnataka, India
Shwetha K. G.
Department of Civil Engineering, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, Karnataka, India
P. Sunagar
Department of Civil Engineering, M S Ramaiah Institute of Technology, Bangalore, India
E. Noroozinejad Farsangi
Faculty of Civil and Surveying Engineering, Graduate University of Advanced Technology, Kerman, Iran
مراجع و منابع این مقاله:
لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :