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Scenedesmus biomass productivity and nutrient removal from wet market wastewater, a bio-kinetic study

Apandi, Najeeha and Radin Mohamed, Radin Maya Saphira and Al‑Gheethi, Adel and Gani, Paran and Ibrahim, Alfituri and Mohd Kassim, Amir Hashim (2018) Scenedesmus biomass productivity and nutrient removal from wet market wastewater, a bio-kinetic study. Waste and Biomass Valorization. pp. 1-18. ISSN 1877265X

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Abstract

The current study aims to investigate the production of microalgae biomass as a function for different wet market wastewater ratios (10, 25, 50, 75 and 100%) and Scenedesmus sp. initial concentrations ( 10^4, 10^5, 10^6, 10^7 cells/mL) through the phycoremediation process. The biomass production, total nitrogen (TN), total phosphorus (TP) and total organic compounds (TOC) were determined daily. The pseudo-first order kinetic model was used to measure the potential of Scendesmus sp. in removing nutrients while the Verhulst logistic kinetic model was used to study the growth kinetic. The study revealed that the maximum productivity of Scenedesmus sp. biomass was recorded with 106 cells/mL of the initial concentration in 50% wet market wastewater (98.54 mg/L/day), and the highest removal of TP, TN, and TOC was obtained (85, 90 and 65% respectively). Total protein and lipid contents in the biomass yield produced in the wet market wastewater were more than that in the biomass produced in the BBM (41.7 vs. 37.4 and 23.2 vs. 19.2%, respectively). The results of GC–MS confirmed detection of 44 compounds in the biomass from the wet market wastewater compared to four compounds in the BBM. These compounds have several applications in pharmaceutical and personal care products, chemical industry and antimicrobial activity. These findings indicated the applicability of wet market wastewater as a production medium for microalgae biomass.

Item Type: Article
Uncontrolled Keywords: Pseudo-first order kinetic model; Verhulst logistic kinetic model; growth rate; Scenedesmus sp.
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD201-500 Water supply for domestic and industrial purposes
Divisions: Faculty of Civil and Environmental Engineering > Department of Water and Environmental Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 23 Jun 2019 07:00
Last Modified: 23 Jun 2019 07:00
URI: http://eprints.uthm.edu.my/id/eprint/11232
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