E3S Web of Conf.
Volume 405, 20232023 International Conference on Sustainable Technologies in Civil and Environmental Engineering (ICSTCE 2023)
|Number of page(s)||13|
|Published online||26 July 2023|
Application of a membrane photobioreactor combined with microalgae for shrimp culture wastewater treatment
1 Faculty of Chemical Engineering and Food Technology, Nong Lam University, 700000, Ho Chi Minh City, Vietnam
2 Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam
3 Faculty of Environmental, Ho Chi Minh City University of Natural Resources and Environment, Ho Chi Minh City, 700000, Vietnam
4 Institute for Environment and Resources, Vietnam National University Ho Chi Minh City, Ho Chi Minh City, 700000, Vietnam
5 Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam
* Corresponding author: email@example.com
Shrimp farming has emerged as a multi-billion-dollar industry in our country, creating numerous economic benefits. However, this sector has several negative environmental impacts. Recent studies on the utilization of microalgae for wastewater treatment are of current interest due to their environmental remediation ability, as well as their potential to generate economic value from the biomass produced after treatment. This study aimed to evaluate the wastewater treatment efficiency of Chlorella Vulgaris using a PMBR membrane photobiological model in shrimp aquaculture. The evaluation process included an acclimatization phase and a treatment effectiveness evaluation phase, which lasted a total of 101 days. Algae biomass, the removal efficiency of COD, N-NO -, N-NO -, N-NH +, and P-PO 3-, and membrane fouling behavior were analyzed. The initial results demonstrated that the algae were well-adapted to shrimp aquaculture wastewater. The removal efficiency of N-NO -, N-NO -, N-NH +, and P-PO 3- and COD was 88.55%, 76.15%, 84.58%, 78.07%, and 81.33%, respectively. The algae biomass steadily increased from 91.3 mg/L to 327.69 mg/L, reaching an average level of about 208 mg/L. Additionally, the transmembrane pressure (TMP) evaluation indicated that the necessary time for membrane fouling removal was approximately 25-26 days.
© The Authors, published by EDP Sciences, 2023
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