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Adsorption of Cu(II) ions from aqueous solutions on biochars prepared from agricultural by-products

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Adsorption of Cu(II) ions from aqueous solutions on biochars prepared from agricultural by-products
นักวิจัย : Pellera, Frantseska-Maria , Giannis, Apostolos , Kalderis, Dimitrios , Anastasiadou, Kalliopi , Stegmann, Rainer , Wang, Jing-Yuan , Gidarakos, Evangelos
คำค้น : DRNTU::Engineering::Environmental engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Pellera, F.-M., Giannis, A., Kalderis, D., Anastasiadou, K., Stegmann, R., Wang, J.-Y., et al. (2012). Adsorption of Cu(II) ions from aqueous solutions on biochars prepared from agricultural by-products. Journal of environmental management, 96(1), 35-42. , 0301-4797 , http://hdl.handle.net/10220/18073 , http://dx.doi.org/10.1016/j.jenvman.2011.10.010
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of environmental management
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

In this study, the adsorption of Cu(II) from aqueous solutions by agricultural by-products, such as rice husks, olive pomace and orange waste, as well as compost, was evaluated. The aim was to obtain sorbent materials (biochars) through hydrothermal treatment (300 °C) and pyrolysis (300 °C and 600 °C). The effect of adsorbent dose, pH, contact time and initial Cu(II) concentration in batch-mode experiments was investigated. The optimum Cu(II) adsorption conditions was found to occur at 5–12 g/L adsorbent dose, initial pH 5–6, and reaction time 2–4 h. Furthermore, the adsorption kinetics were best described by the pseudo-second order model for all the tested materials, while the adsorption equilibrium best fitted by the linear and Freundlich isotherms. Comparing rice husks and olive pomace, the higher adsorption capacity resulted after pyrolysis at 300 °C. With respect to the orange waste and compost, the highest adsorption capacity was observed using biochars obtained after hydrothermal treatment and pyrolysis at 300 °C.

บรรณานุกรม :
Pellera, Frantseska-Maria , Giannis, Apostolos , Kalderis, Dimitrios , Anastasiadou, Kalliopi , Stegmann, Rainer , Wang, Jing-Yuan , Gidarakos, Evangelos . (2555). Adsorption of Cu(II) ions from aqueous solutions on biochars prepared from agricultural by-products.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Pellera, Frantseska-Maria , Giannis, Apostolos , Kalderis, Dimitrios , Anastasiadou, Kalliopi , Stegmann, Rainer , Wang, Jing-Yuan , Gidarakos, Evangelos . 2555. "Adsorption of Cu(II) ions from aqueous solutions on biochars prepared from agricultural by-products".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Pellera, Frantseska-Maria , Giannis, Apostolos , Kalderis, Dimitrios , Anastasiadou, Kalliopi , Stegmann, Rainer , Wang, Jing-Yuan , Gidarakos, Evangelos . "Adsorption of Cu(II) ions from aqueous solutions on biochars prepared from agricultural by-products."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Pellera, Frantseska-Maria , Giannis, Apostolos , Kalderis, Dimitrios , Anastasiadou, Kalliopi , Stegmann, Rainer , Wang, Jing-Yuan , Gidarakos, Evangelos . Adsorption of Cu(II) ions from aqueous solutions on biochars prepared from agricultural by-products. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.