کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
682895 888992 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Distribution of C and N mineralization of a sludge compost within particle-size fractions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Distribution of C and N mineralization of a sludge compost within particle-size fractions
چکیده انگلیسی

The contribution of particle-size fractions to carbon (C) and nitrogen (N) mineralization of sludge compost was investigated. Particle-size fractionation was performed using “dry” (sieving of total dry compost) and “wet” (dispersion of compost in water, followed by sieving) fractionation methods, then C and N mineralization of the separated fractions were measured during incubation in soil. The “dry” fractionation did not allow the actual particle-size distribution of compost to be estimated accurately. Out of all the “wet” fractions, the [0–50 μm] fraction was the most significant fraction in compost mass and contributed the most to the N mineralization of sludge compost in soil. Its low degradability, positive N mineralization and similarities with sludge OM suggest that the most humified sludge organic matter was located in this fraction, which would probably contribute to C storage and N availability after compost application in soil. Other fractions (>200 μm) were more readily biodegradable and induced N immobilization.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 101, Issue 4, February 2010, Pages 1254–1262
نویسندگان
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