کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4472423 1315068 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analyzing nutrient distribution in different particle-size municipal aged refuse
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Analyzing nutrient distribution in different particle-size municipal aged refuse
چکیده انگلیسی

To investigate the feasibility of using aged municipal solid waste as farmland soil, it is essential to study its nutritive compositions for plant growth. Previous studies have demonstrated that the properties of different particle-size aged refuse are very different, therefore, the present study was conducted to evaluate the adequacy of three elements (N, P, K) and the fractionation of inorganic P in the aged refuse with a particle-size distribution of 900 to 300, 300 to 150, 150 to 105, 105 to 90 and 90 to 0 μm. The results indicate that (1) total quantities of N, P, K were much larger than that in the general soil and the quantities of available N, P and K were also adequate; (2) total content of P was sufficient, but the ratio of available-P to total P was not high enough; (3) with the decrease of particle size, the contents of these elements presented different trends. The results implicate that total contents of N, P and K were enough for the aged refuse being exploited as cultivated soil, and different gradation of aged refuse could be added to improve poor soils. It provides scientific evidence for utilizing different particle-size aged refuse comprehensively.


► The contents of nutrients in different particle-size aged refuse are investigated.
► Total quantities of N, P and K are much larger than that in the general soil.
► The quantities of available N, P and K are also adequate.
► With the decrease of particle size, the contents of different elements presented different trends.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Waste Management - Volume 31, Issue 11, November 2011, Pages 2203–2207
نویسندگان
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