Cultivation of Chlorella pyrenoidosa as a raw material for the production of biofuels in palm oil mill effluent medium with the addition of urea and triple super phosphate
Journal Title: Environmental Health Engineering and Management Journal - Year 2020, Vol 7, Issue 1
Abstract
Background: The utilization of microalgae as a renewable energy is an important aspect in solving shortage of future oil reserve in 15 years. One of the renewable energy sources is microalgae biodiesel. Palm oil mill effluent (POME) is a wastewater that has a high content of organic materials. These organic materials can be used as growth nutrients for microalgae. Chlorella pyrenoidosa is one of the most potential microalgae used as a raw material for the production of biodiesel since it contains lipids (8%-35%). Methods: Chlorella pyrenoidosa was cultured on the POME medium with concentrations of 0%, 25%, 50%, 75%, and 100%v with addition of synthetic nutrients (urea: TSP) at the ratios of 2:1 ; 1:2 ; 0.5:1 in a 500 mL Erlenmeyer flask, at pH 6-8, aeration using aquarium pumps, and using LED lights (3000 lux). Results: It was revealed that at POME concentration of 25% and with addition of urea: TSP at a ratio of 2:1, the optimum specific growth rate (0.306/day) with the highest number of cells was 3.530 × 107 cells/mL and the highest lipid content was 36% of its dry weight. The removal efficiency of POME could be obtained from the removal efficiency of chemical oxygen demand (COD), total nitrogen, and orthophosphate (P-PO4), which was 70, 90.42, and 81.12%, respectively. Conclusion: According to the results, under appropriate culture conditions, C. pyrenoidosa can produce lipids with good use of nutrients contained in the POME medium.
Authors and Affiliations
Shinta Elystia , Sri Rezeki Muria , Herta Furaida Erlangga
Keywords
Related Articles
- EP ID EP678620
- DOI 10.34172/EHEM.2020.01
- Views 255
- Downloads 0
Assessment of pollution and ecological risk of heavy metals in the sediments of the western coast of Persian Gulf: A case study in Dayer port
Background: In recent years, the pollution of heavy metals in the beaches has been noticed due to the increase of human activities. This study aimed to evaluate heavy metal pollution, its ecological risk, and possible...
Modeling of wastewater treatment plant in Hama city using regression and regression trees
Background: Modeling of wastewater treatment plants is necessary to predict their later works. In this research, three methods were compared to predict some parameters at the outlet of wastewater treatment plant in Ham...
Chromium removal and water recycling from electroplating wastewater through direct osmosis: Modeling and optimization by response surface methodology
Background: Considering the carcinogenic effects of heavy metals, such as chromium, it is essential to remove these elements from water and wastewater. Direct osmosis is a new membrane technology, which can be a proper...
A new treatment design for water contaminated with phenol
Background: Several important designs have been applied to remove toxic and hazardous organic substances like phenol and phenol compounds from wastewater, but there is a need to seek an alternative design to effectively...
Metal exposure and breast malignancy: A case-control study of Malwa Region of Punjab
Background: Breast cancer is triggered by uncontrollable breast cell development. These metals may build up in human serum and tissues, causing estrogenic/malignant consequences. Therefore, metals are being studied to...