کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
575779 1453059 2016 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reclamation of zinc-contaminated soil using a dissolved organic carbon solution prepared using liquid fertilizer from food-waste composting
ترجمه فارسی عنوان
احیا خاک آلوده با استفاده از یک محلول کربن آلی محلول تهیه شده با استفاده از کود مایع از کمپوست زباله های مواد غذایی
کلمات کلیدی
کربن ارگانیک حل شده کمپوست زباله های مواد غذایی، کود مایع، شستشو خاک، فلز روی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
چکیده انگلیسی
A liquid fertilizer obtained through food-waste composting can be used for the preparation of a dissolved organic carbon (DOC) solution. In this study, we used the DOC solutions for the remediation of a Zn-contaminated soil (with Zn concentrations up to 992 and 757 mg kg−1 in topsoil and subsoil, respectively). We then determined the factors that affect Zn removal, such as pH, initial concentration of DOC solution, and washing frequency. Measurements using a Fourier Transform infrared spectrometer (FT-IR) revealed that carboxyl and amide were the major functional groups in the DOC solution obtained from the liquid fertilizer. Two soil washes using 1,500 mg L−1 DOC solution with a of pH 2.0 at 25 °C removed about 43% and 21% of the initial Zn from the topsoil and subsoil, respectively. Following this treatment, the pH of the soil declined from 5.4 to 4.1; organic matter content slightly increased from 6.2 to 6.5%; available ammonium (NH4+-N) content increased to 2.4 times the original level; and in the topsoil, the available phosphorus content and the exchangeable potassium content increased by 1.65 and 2.53 times their initial levels, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 301, 15 January 2016, Pages 100-105
نویسندگان
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