Advanced wastewater treatment using microalgae: effect of temperature on removal of nutrients and organic carbon

7th International Conference on Environment and Industrial Innovation

生态环境科学;工业技术

Mohamad, Shurair^1 ; Fares, Almomani^1 ; Judd, Simon^2 ; Bhosale, Rahul^1 ; Kumar, Anand^1 ; Gosh, Ujjal^1 ; Khreisheh, Majeda^1

Department of Chemical Engineering, Qatar University, P.O box 2713, Doha, Qatar^1

Gass Processing Center, Qatar University, P.O box 2713, Doha, Qatar^2

关键词: Effect of temperature;    High temperature;    Operational temperature;    Phosphorus removal;    Primary effluent;    Secondary effluent;    Treatment process;    Wastewater treatment system;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/67/1/012032/pdf
DOI  :  10.1088/1755-1315/67/1/012032

来源: IOP

【 摘 要 】

This study evaluated the use of mixed indigenous microalgae (MIMA) as a treatment process for wastewaters and CO2 capturing technology at different temperatures. The study follows the growth rate of MIMA, CO2 Capturing from flue gas, removals of organic matter and nutrients from three types of wastewater (primary effluent, secondary effluent and septic effluent). A noticeable difference between the growth patterns of MIMA was observed at different CO2 and different operational temperatures. MIMA showed the highest growth grate when injected with CO2 dosage of 10% compared to the growth for the systems injected with 5% and 15 % of CO2. Ammonia and phosphorus removals for Spirulina were 69%, 75%, and 83%, and 20%, 45% and 75 % for the media injected with 0, 5 and 10% CO2. The results of this study show that simple and cost-effective microalgae-based wastewater treatment systems can be successfully employed at different temperatures as a successful CO2 capturing technology even with the small probability of inhibition at high temperatures.