Utilization of cockle shell powder as an adsorbent to remove phosphorus-containing wastewater

Nayeem, Abdullah and Farahin, Mizi and Mohd Faizal, Ali and Jun Haslinda, Shariffuddin (2023) Utilization of cockle shell powder as an adsorbent to remove phosphorus-containing wastewater. Environmental Research, 216 (114514). pp. 1-8. ISSN 0013-9351. (Published)


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The paper demonstrates the capability of using cockle shells as an adsorbent for phosphorus removal from simulated petrochemical wastewater, focusing on the actual condition of the petrochemical facultative pond. In this study, the physicochemical properties of shell powder were determined, such as the functional groups, surface morphology, crystalline structure, and surface area using FTIR, SEM, EDX, XRD, and BET. It was observed that the optimum conditions for effective phosphorus removal are under the presence of rotational speed (125rpm), higher dosage (7 g/L), and larger surface area (smaller particle size) of the shell powder. Fine powder achieved up to 52.27% of phosphorus removal after 40 min compared to coarse powder which could only give 16.67% removal. Additionally, calcined shell powder demonstrated a higher phosphorus removal rate, i.e., up to 62.37%, compared to raw shell powders. The adsorption isotherm was studied using Langmuir and Freundlich models, but the isothermal data fit better for the Freundlich model (R2 = 0.9836). Overall, this study has successfully generated a greener and low-cost adsorbent.

Item Type: Article
Uncontrolled Keywords: Cockle shells; waste to wealth; phosphorous removal; adsorption; wastewater treatment
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
T Technology > TD Environmental technology. Sanitary engineering
T Technology > TP Chemical technology
Faculty/Division: Institute of Postgraduate Studies
College of Engineering
Faculty of Chemical and Process Engineering Technology
Depositing User: Miss. Ratna Wilis Haryati Mustapa
Date Deposited: 21 Oct 2022 02:59
Last Modified: 21 Oct 2022 02:59
URI: http://umpir.ump.edu.my/id/eprint/35498
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