Article
Engineering, Environmental
Junseok Heo, Daeeun Kwon, Emma Beirns, Giin-Yu Amy Tan, Po-Heng Lee, Jeonghwan Kim
Summary: An anaerobic fluidized bed ceramic membrane bioreactor (AFCMBR) with polyvinylidene difluoride (PVDF) as the bio-carrier was used to treat synthetic low-strength wastewater containing high dosage of methylparaben. The study investigated the effect of hydraulic retention time (HRT) on the removal efficiency of methylparaben and the impact of methylparaben on methane content in the biogas produced. Results showed that fluidization of the PVDF biocarrier played a key role in cleaning the membrane and the fouling rate was effectively reduced with intermittent backwashing. Continuous feeding of methylparaben did not affect microbial activity, and biodegradation through biofilm formation was the dominant pathway for methylparaben removal.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Agricultural Engineering
Qi Song, Zheng Sun, Yong Chang, Weifeng Zhang, Yingzhi Lv, Jiayi Wang, Fenghao Sun, Yanxue Ma, Yuling Li, Fengbo Wang, Xiaoguang Chen
Summary: The study demonstrated a novel biological method to treat wastewater from the textile industry, proving its feasibility. By combining different types of bioreactors, efficient removal of COD and NH4+-N from PCW was achieved, providing a new alternative to traditional chemical methods.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Gulay Bayramoglu, M. Yakup Arica
Summary: The white rot fungus Lentinus sajor-caju was immobilized in Ca-alginate beads to increase fungal biodegradation activity for three different phenolic compounds. The immobilized biomass showed stable mechanical strength and high degradation rates, indicating a promising approach for phenol removal in wastewater treatment.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Engineering, Environmental
Majed Alsubih, Rachida El Morabet, Roohul Abad Khan, Nadeem A. Khan, Amadur Rahman Khan, Gaurav Sharma
Summary: The study combined a fluidized aerobic bed reactor with a tube settler for hospital wastewater treatment, showing promising results in terms of pollutant removal and treatment efficiency. This indicates that fluidized aerobic bed reactor can be successfully employed for hospital wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Daeeun Kwon, Woobin Bae, Jeonghwan Kim
Summary: The FO-MD process, combined with AFBR, significantly improved the removal efficiency of nutrients such as ammonia nitrogen. However, challenges such as the accumulation of ammonia nitrogen in the DS and reverse salt flux through the FO membrane remain to be addressed.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
Fatiha Lassouane, Hamid Ait-Amar, Susana Rodriguez-Couto
Summary: The study found that immobilized crude laccase showed high efficiency in degrading BPA, and by optimizing the experimental conditions, good degradation results were achieved in shake-flask and fluidized bed bioreactor scales.
BIOCHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Ion Iliuta, Maria C. Iliuta
Summary: Attaching microbial cells to micro-particles surface can enhance the biodegradation efficiency in packed-bed column bioreactors, especially under low phenol concentrations and liquid velocities.
Article
Environmental Sciences
Muhammad Maaz, Muhammad Aslam, Muhammad Yasin, Asim Laeeq Khan, Azeem Mushtaq, Tahir Fazal, Ahmed Muteb Aljuwayid, Mohamed A. Habila, Jeonghwan Kim
Summary: This study investigated the use of biochar in a fluidized bed membrane bioreactor to mitigate membrane fouling. Different types of macroalgal biochar were synthesized at different pyrolysis temperatures and characterized. The results showed that macroalgal biochar could effectively reduce membrane fouling, especially at low gas sparging rate.
Article
Agricultural Engineering
Anita Parzentna-Gabor, Damian Kasperczyk, Krzysztof Barbusinski, Eldon R. Rene, Krzysztof Urbaniec
Summary: The main aim of this study was to optimize and maximize the impacts of biodegradation of odor and volatile organic compounds (VOCs) in a wastewater treatment plant using a compact trickle bed bioreactor (CTBB) on a pilot scale. The CTBB was tested with gases from a tank containing semi-liquid fats, oils, and fat waste and showed pollutant removal efficiency ranging from 81.5% to 99.5% for VOCs, 87.5% to 98.9% for H2S, and >99% for NH3. In the liquid phase, the removal efficiency was higher at pH = 7.0 than at pH = 5.0.
BIORESOURCE TECHNOLOGY
(2023)
Article
Environmental Sciences
Yilin Dong, Jie Zhang, Qiuwen Wang, Dongyu Xu, Shaoxuan Pang, Luiza C. Campos, Zhijun Ren, Pengfei Wang
Summary: This study aimed to enhance the removal and mineralization efficiency of ciprofloxacin (CIP) using the integrated photocatalysis and fluidized bed biofilm reactor (FBBR) by introducing a magnetic field (MF) and B-doped Bi3O4Cl as the photocatalysts. The results showed that the addition of MF increased the degradation rate and total organic carbon (TOC) degradation rate, as well as accelerated microbial metabolism. The use of MF improved the performance of the integrated system and provided an efficient method for the treatment of wastewater containing antibiotics.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Green & Sustainable Science & Technology
Mengqi Zheng, Yongri Bai, Hongjun Han, Zhengwen Zhang, Chunyan Xu, Wencheng Ma, Weiwei Ma
Summary: The use of carbon-based fluidized bed reactors in coal industry provided efficient treatment of pyrolysis wastewater, with high degradation rates and stability. The reactors also exhibited superior performance in phenolic degradation and oxidative resistance compared to activated sludge reactors.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
Arindam Sinharoy, Manoj Kumar, Rayanee Chaudhuri, Sudeshna Saikia, Kannan Pakshirajan
Summary: This study investigated the simultaneous removal and recovery of selenite and heavy metals from wastewater using an inverse fluidized bed bioreactor (IFBR). The presence of heavy metals, especially copper, negatively affected the selenite removal efficiency. The overall removal efficiency of heavy metals was over 70%, and the recovery efficiency ranged from 45.1% to 73.9% for selenium and from 59.2% to 69.8% for heavy metals.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Xiaowu Huang, Wenkui Mi, Yuen Him Chan, Shubham Singh, Huichuan Zhuang, Shao-Yuan Leu, Xiang-zhong Li, Xiangdong Li, Po-Heng Lee
Summary: Using seawater for toilet flushing can save scarce freshwater resources in densely-populated coastal cities like Hong Kong. Saline sewage treatment using energy-efficient anammox-based processes shows great potential, but its feasibility is still uncertain. This study successfully operated a pilot-scale anammox process in a granular activated carbon fluidized-bed membrane bioreactor (FMBR) with only inoculating saline anaerobic digestion sludge, achieving comparable nitrogen removal rates while treating real chemically enhanced primary treatment saline sewage.
Article
Polymer Science
Anna Zywicka, Daria Ciecholewska-Jusko, Radoslaw Drozd, Rafal Rakoczy, Maciej Konopacki, Marian Kordas, Adam Junka, Pawel Migdal, Karol Fijalkowski
Summary: This study demonstrated the effectiveness of a novel magnetically assisted external-loop airlift bioreactor (EL-ALB) equipped with rotating magnetic field (RMF) generators for Komagataeibacter xylinus inoculum preparation and subsequent bacterial cellulose (BC) production. The RMF-assisted EL-ALB allowed for a high-density and stable inoculum with consistent BC production, without inducing cellulose-deficient mutants. The BC obtained had reproducible properties and mechanical strength, making it suitable for future applications in tissue engineering, wound healing, and drug delivery.
Article
Engineering, Environmental
Van-Giang Le, Dai-Viet N. Vo, Nhat-Huy Nguyen, Yu-Jen Shih, Chi-Thanh Vu, Chih-Hsiang Liao, Yao-Hui Huang
Summary: This study successfully recovered and reused nitrogen and phosphorus from swine wastewater using fluidized-bed homogeneous granulation technology, achieving high recovery efficiency and purity. Under certain conditions, the optimal up-flow velocity and magnesium concentration significantly affect the recovery efficiency and crystal size.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
