کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4570816 1332076 2017 7 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Technosols designed for rehabilitation of mining activities using mine spoils and biosolids. Ion mobility and correlations using percolation columns
ترجمه فارسی عنوان
Technosols طراحی شده برای بازسازی فعالیت های معدنی با استفاده از غنایم معدن و لجن. تحرک یونی و همبستگی با استفاده از ستون‌های پرکولاسیون
کلمات کلیدی
تحرک یونی؛ آبیاری؛ غنایم معدن؛ لجن فاضلاب
Ion mobility; Irrigation; Quarry spoils; Sewage sludge
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی


• An evaluation of the ion mobility in Technosols has been carried out.
• Significant nitrate concentrations are present in leachates.
• The EC correlated well with the cation concentrations, except with K.
• Significant correlations were obtained between sulfates and Mg, Ca, K concentrations.

The restoration technologies in areas degraded by extractive activities are more efficient under the use of their own spoils. Reducing deficiencies in physical properties, organic matter, and nutrients with a contribution of treated sewage sludge is proposed. This experiment was based on a controlled study using columns. The work was done with two limestone quarry spoils, both very rich in calcite. Two biosolid doses were undertaken (30,000 and 90,000 kg/ha of sewage sludge) in addition to different quarry spoils used as substrates. The water contribution was provided by a device simulating short duration rain. The leached water was collected 24 h after the last application. Nitrate, ammonium, phosphate, sulfate, and chloride ions were determined, as well as Ca, Mg, Na and K, the pH and electrical conductivity. The electrical conductivity limit value is < 1000 μS/cm. These values will be met from the fourth irrigation application onward, while the values up to that point were far superior. Significant nitrate concentrations appeared that may pose an environmental contamination risk. A comparison between the concentrations of the chemical elements obtained in the leachates from our experiment and the established limit values for water of the third quality group has been performed. The electrical conductivity correlated well with the cations, with the exception of potassium. For sulfates, significant correlations were obtained with the Mg2 +, Ca2 +, and K+ cations. The chlorides showed excellent correlation with the sodium. The good correlations obtained for some physical–chemical parameters can help to establish indicators of environmental quality of leachates over time.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: CATENA - Volume 148, Part 1, January 2017, Pages 74–80
نویسندگان
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