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言語
英語
属性
Original Research
著者
Ifeoma Monica Nwajiaku
John Seye Olanrewaju
Takeo Tokunari
Shigeru Kitano
内容記述(抄録等)
Purpose
Waste management is one of the significant challenges facing Nigeria’s agricultural sector. To manage this problem, the conversion of agricultural wastes to biochar is a practical solution.

Methods
In this work, the chemical composition of biochar from rice husk and sugarcane bagasse, two predominant agricultural wastes, commonly generated in Nigeria was studied. These wastes were pyrolyzed at 300–700 and 350–700 °C for rice husk biochar (RHB) and sugarcane bagasse biochar (SBB), respectively.

Results
It was found that biochar yield and total nitrogen decreased with increasing pyrolysis temperature while ash content, pH, EC, total carbon, extractable Ca, Mg, Na, available phosphorus and silica were increased. In RHB, extractable K increased with increasing pyrolysis temperature, while in SBB it decreased with its maximum observed in RHB.

Conclusions
Rice husk pyrolyzed at high temperature may produce nutrient-rich biochar with high nutrient contents and these could ameliorate acidic soils. Finally, SBB could give high available silicon with acid pre-treatment.
掲載誌名
International Journal of Recycling of Organic Waste in Agriculture
7
開始ページ
269
終了ページ
276
発行日
2018-8-17
DOI
出版者
Springer
資料タイプ
学術雑誌論文
ファイル形式
PDF
著者版/出版社版
出版社版
業績ID
e35542
部局
生物資源科学部