Proceedings of the 6th International Conference of Food, Agriculture, and Natural Resource (IC-FANRES 2021)

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The Effective Adsorption of Phosphate and Nitrate Using Spent Coffee Ground Loaded Iron and the Effect for Plant Growth

Authors
Aisyah Humayro1, Hiroyuki Harada1, *, Kanako Naito1, Atsushi Hashimoto1
1Department Environmental Science, Prefectural University of Hiroshima, Shobara, 727-0023, Japan
*Corresponding author. Email: ho-harada@pu-hiroshima.ac.jp
Corresponding Author
Hiroyuki Harada
Available Online 5 January 2022.
DOI
10.2991/absr.k.220101.056How to use a DOI?
Keywords
Adsorption; SCG; Iron; Phosphate; Nitrate
Abstract

The aim of this study is to determine the effectiveness of phosphate and nitrate adsorption through several parameters, such as different initial concentrations, kinetic behaviour, the effect of pH, and ratio liquid solid. Fe-SCG showed the adsorption capacity values were 35.82 mg/g for phosphate and 20.5 mg/g for nitrate, respectively. Adsorption rate was observed rapidly in the first 60 minutes for phosphate and 90 minutes for nitrate by Fe-SCG. The kinetic experiment showed that the fitting of the pseudo-second order model was more satisfactory with coefficient correlation were 0.9586 for phosphate and 0.9783 for nitrate. The experimental data of both adsorptions were fitted well to Freundlich isotherm. The optimum pH of adsorption phosphate and nitrate by Fe-SCG were reached pH 5 and 7. In the adsorption process using Fe-SCG, iron ion had affinity to phosphate ion and become ferric phosphate. The value of phosphate adsorbed by Fe-SCG was 65.37 mg/g and nitrate were 35 mg/g in ratio liquid solid of 0.2 g/L. The germination index test values of the Fe-SCG showed values above 80, indicating that they did not have a toxic effect on plant growth. The effect of application for plant growth showed that Fe-SCG in 0.2% dose yielded the highest plant height compared to the other two doses.

Copyright
© 2022 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

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Volume Title
Proceedings of the 6th International Conference of Food, Agriculture, and Natural Resource (IC-FANRES 2021)
Series
Advances in Biological Sciences Research
Publication Date
5 January 2022
ISBN
978-94-6239-506-0
ISSN
2468-5747
DOI
10.2991/absr.k.220101.056How to use a DOI?
Copyright
© 2022 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

Cite this article

risenwbib
TY  - CONF
AU  - Aisyah Humayro
AU  - Hiroyuki Harada
AU  - Kanako Naito
AU  - Atsushi Hashimoto
PY  - 2022
DA  - 2022/01/05
TI  - The Effective Adsorption of Phosphate and Nitrate Using Spent Coffee Ground Loaded Iron and the Effect for Plant Growth
BT  - Proceedings of the 6th International Conference of Food, Agriculture, and Natural Resource (IC-FANRES 2021)
PB  - Atlantis Press
SP  - 409
EP  - 417
SN  - 2468-5747
UR  - https://doi.org/10.2991/absr.k.220101.056
DO  - 10.2991/absr.k.220101.056
ID  - Humayro2022
ER  -