Article
Engineering, Environmental
Lin Wang, Tian Li, Huaqiang Chu, Wanzhu Zhang, Weiwei Huang, Bingzhi Dong, Daoji Wu, Feiyong Chen
Summary: The study found that FO membrane has efficient removal rates for natural DOM, but calcium ion concentration has a more severe impact on fouling flux. The concentrated feed solution has a more significant effect on fouling flux decline for natural DOM containing more small molecules. Additionally, fouling in the AL-facing-DS orientation can be compensated by reducing internal concentration polarization level.
Article
Engineering, Chemical
Francesco Ricceri, Mattia Giagnorio, Katherine R. Zodrow, Alberto Tiraferri
Summary: The study indicates that initial flux and calcium have the strongest influence on the extent of flux decline and recovery in FO and hydraulic pressure-driven processes. The impact of different draw solutions in FO becomes more apparent when the flux is relatively low.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Sukyoung Kim, Jaegyu Shim, Moon Son, Sanghun Park, Kyung Hwa Cho
Summary: This study investigated the fouling behavior of a desalination system and found that hydrophobic organic matter can affect the salt-removal performance of the system, while hydrophilic organic matter does not.
Article
Chemistry, Multidisciplinary
Dong-Ho Kim, Chulmin Lee, Thanh-Tin Nguyen, Rusnang Syamsul Adha, Chaeyeon Kim, Sang-Jun Ahn, Heejong Son, In S. Kim
Summary: Research on pressure-assisted forward osmosis (PAFO) process has shown linear correlations between microbial ATP concentration and fouling index in both wastewater and seawater influent. After 76 days of operation, analysis of fouling on filtration media and FO membranes revealed the importance of advanced pretreatment to protect the FO membranes.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Engineering, Environmental
Duksoo Jang, Youngkun Chung, Am Jang, Seoktae Kang
Summary: This study investigated the impact of organic fouling layers on the transport of micropollutants (MPs) during forward osmosis (FO) process. The results showed that the transport of MPs was governed by electrostatic and hydrophobic interactions. The presence of negatively charged functional groups in the organic fouling layers increased the rejection of negatively charged MPs, while the rejection of positively charged and neutral MPs with high Kow was significantly decreased. Adsorption analysis revealed that positively charged and hydrophobic MPs were preferentially adsorbed into the organic fouling layers, and the concentration of MPs in the fouling layer accelerated their diffusion across the FO membranes.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Shafiq M. Hizam, Muhammad Roil Bilad, Nik Abdul Hadi Nordin, Nonni Soraya Sambudi, Mohd Dzul Hakim Wirzal, Norhaniza Yusof, Chalida Klaysom, Juhana Jaafar
Summary: The study focused on fouling control in a forward osmosis system for concentrating produced water by using seawater as a draw solution. Multi-stage concentration with aeration and module inclination showed higher fluxes and concentration factor compared to single-stage concentration. Aeration effectively improved water flux and suppressed fouling, especially when the filtration cell was inclined at a certain angle.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Chemical
Mitra Golgoli, Javad Farahbakhsh, Abdul Hannan Asif, Mehdi Khiadani, Amir Razmjou, Michael L. Johns, Masoumeh Zargar
Summary: With the increase of microplastics in water and wastewater, it is necessary to study their removal using tertiary treatment systems to minimize and prevent their entrance into aquatic environments. Forward osmosis is a membrane process that shows potential in removing microplastics from wastewater, but it requires high-performance membranes with low fouling tendency. This study focuses on modifying thin film composite FO membranes with a water-stable and hydrophilic metal-organic framework, which shows improved antifouling properties against microplastics and organic foulants.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Xian-Zheng Zhu, Long-Fei Wang, Feng Zhang, Liven Wenhui Lee, Jie Li, Xiao-Yang Liu, Shuai Luo, Min-Sheng Huang, Hou-Qi Liu
Summary: This study found that the presence of TiO2 can effectively reduce membrane fouling caused by alginate in forward osmosis process, by alleviating alginate aggregation and binding fouling. The behavior and mechanisms of membrane fouling were characterized using various analytical methods.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Water Resources
Bara A. K. Al-Sakaji, Sameer Al-Asheh, Munjed A. Maraqa
Summary: This study investigated the effect of ultrasound on water flux through forward osmosis membrane for seawater desalination. The results showed that both membrane crossflow velocity and ultrasound had a positive effect on water flux enhancement, with crossflow velocity having a more significant impact. Flow configuration did not have a significant effect on water flux. The interaction between crossflow velocity and ultrasound was statistically significant for both sodium chloride and magnesium chloride draw solutions, while the interaction between crossflow velocity and flow configuration was only significant for the magnesium chloride case.
APPLIED WATER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Mengsi Xu, Pin Zhao, Chuyang Y. Tang, Xiawen Yi, Xinhua Wang
Summary: This study prepared a conductive thin film composite forward osmosis (TFC-FO) membrane by incorporating MXenes nanolayer on the surface of a polyethersulfone membrane. The addition of MXenes reduced electric resistance, improved membrane porosity, and enhanced membrane performance. The modified TFC-FO membrane demonstrated effective mitigation of organic fouling under electric field and exhibited good stability during fouling experiments.
CHINESE CHEMICAL LETTERS
(2022)
Article
Environmental Sciences
Sristina Baruah, Asfak Patel, Arvind Kumar Mungray, Alka A. Mungray
Summary: Forward osmosis (FO) has gained attention in desalination due to its low or no hydraulic pressure operation, reduced membrane fouling, and high-water recovery. Nevertheless, pre-treatment of seawater is required to minimize membrane fouling caused by suspended solid particles. Finding a suitable draw solute (DS) remains a significant research focus. This study demonstrates the potential of a novel deep eutectic solvent (DES) as the ideal DS by successfully extracting water after a 500% dilution of DS.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Chemical
Semion Brover, Yaal Lester, Asher Brenner, Eyal Sahar-Hadar
Summary: Ultrafiltration (UF) is used as pretreatment for reverse osmosis (RO) desalination, with key operational parameters needing to be optimized for sustainable and cost-effective operation. Adjusting filtration flux, length of filtration cycle, coagulant dosing, and membrane cleaning procedure can improve UF performance, while also considering reversible and irreversible fouling.
Article
Environmental Sciences
Mitra Golgoli, Tushar Kanti Sen, Mehdi Khiadani, Amir Razmjou, Michael L. Johns, Masoumeh Zargar
Summary: This study focuses on the fouling of forward osmosis (FO) membranes by microplastics (MPs) of different sizes, and the interactional impacts of MPs and humic acid (HA) on FO membrane performance. The presence of MPs and HA together causes a higher decline in flux for FO membranes than when either HA or MPs are present alone. The reverse salt flux increases in the presence of MPs and decreases when HA is present. All fouled membranes recover their full flux after hydraulic cleaning, indicating the efficiency of FO systems for treating wastewater with high fouling potential. This study highlights the necessity of considering MPs in studying fouling behavior and mitigation strategies for membranes used in wastewater treatment.
Article
Engineering, Chemical
Andreas Kastl, Edo Bar-Zeev, Markus Spinnler, Thomas Sattelmayer
Summary: The study found that compared to pulsating flows, the deposition rate of particles can be up to 2.6 times higher in a steady state. As a result, the average deposition decreased by a factor of 3.5 from steady state (109 +/- 67 beads mm(-2)) to pulsating feed flow (31 +/- 17 beads mm(-2)) after 4 hours of deposition. These results provide new fundamental insights into the constraints and advantages of using pulsating flows for fouling mitigation in forward osmosis systems.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
MhdAmmar Hafiz, Radwan Alfahel, Ali Altaee, Alaa H. Hawari
Summary: This study evaluated the feasibility of using forward osmosis as a pretreatment method for seawater desalination. The results showed that the process was effective in removing scaling ions and had a low cost.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
R. Valladares Linares, A. D. Wexler, Sz. S. Bucs, C. Dreszer, A. Zwijnenburg, H. -C. Flemming, J. C. Kruithof, J. S. Vrouwenvelder
DESALINATION AND WATER TREATMENT
(2016)
Article
Engineering, Chemical
Szilard S. Bucs, Nadia Farhat, Amber Siddiqui, Rodrigo Valladares Linares, Andrea Radu, Joop C. Kruithof, Johannes S. Vrouwenvelder
DESALINATION AND WATER TREATMENT
(2016)
Article
Engineering, Chemical
Rodrigo Valladares Linares, Zhenyu Li, Victor Yangali-Quintanilla, Qingyu Li, Johannes S. Vrouwenvelder, Gary L. Amy, Noreddine Ghaffour
Article
Engineering, Chemical
R. Valladares Linares, L. Fortunato, N. M. Farhat, S. S. Bucs, M. Staal, E. O. Fridjonsson, M. L. Johns, J. S. Vrouwenvelder, T. Leiknes
DESALINATION AND WATER TREATMENT
(2016)
Article
Engineering, Chemical
Victor Augusto Yangali-Quintanilla, Allan Hjarbaek Holm, Marc Birkner, Sebastien D'Antonio, Helena Wulff Coco Stoltze, Mathias Ulbricht, Xing Zheng
JOURNAL OF MEMBRANE SCIENCE
(2016)
Article
Engineering, Environmental
Szilard S. Bucs, Rodrigo Valladares Linares, Johannes S. Vrouwenvelder, Cristian Picioreanu
Article
Engineering, Environmental
Amber Siddiqui, Nadia Farhat, Szilard S. Bucs, Rodrigo Valladares Linares, Cristian Picioreanu, Joop C. Kruithof, Mark C. M. van Loosdrecht, James Kidwell, Johannes S. Vrouwenvelder
Article
Engineering, Environmental
R. Valladares Linares, Z. Li, V. Yangali-Quintanilla, N. Ghaffour, G. Amy, T. Leiknes, J. S. Vrouwenvelder
Article
Engineering, Chemical
Luca Fortunato, Szilard Bucs, Rodrigo Valladares Linares, Corrado Cali, Johannes S. Vrouwenvelder, TorOve Leiknes
JOURNAL OF MEMBRANE SCIENCE
(2017)
Article
Engineering, Environmental
Youngjin Kim, Sheng Li, Lijo Francis, Zhenyu Li, Rodrigo Valladares Linares, Ahmad S. Alsaadi, Muhannad Abu-Ghdaib, Hyuk Soo Son, Gary Amy, Noreddine Ghaffour
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Engineering, Chemical
Zhenyu Li, Rodrigo Valladares Linares, Szilard Bucs, Luca Fortunato, Claus Helix-Nielsen, Johannes S. Vrouwenvelder, Noreddine Ghaffour, TorOve Leiknes, Gary Amy
Article
Engineering, Chemical
Szilard S. Bucs, Rodrigo Valladares Linares, Nadia Farhat, Asif Matin, Zafarullah Khan, Mark C. M. van Loosdrecht, Rong Yang, Minghui Wang, Karen K. Gleason, Joop C. Kruithof, Johannes S. Vrouwenvelder
DESALINATION AND WATER TREATMENT
(2017)
Article
Engineering, Chemical
Gary Amy, Noreddine Ghaffour, Zhenyu Li, Lijo Francis, Rodrigo Valladares Linares, Thomas Missimer, Sabine Lattemann
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Andres F. Torres-Franco, Deborah Leroy-Freitas, Cristina Martinez-Fraile, Elisa Rodriguez, Pedro A. Garcia-Encina, Raul Munoz
Summary: Anaerobic and microalgae-based technologies have emerged as sustainable alternatives for municipal wastewater treatment. However, the presence of viruses in the treated wastewater is a major concern for reuse applications. This study assessed the ability of these technologies to reduce viruses during secondary wastewater treatment. The results showed that all technologies were effective in reducing the concentration of viruses, with microalgae-based treatment exhibiting the highest potential for reducing the disinfection requirements of treated wastewater.
Article
Engineering, Environmental
Young Gwang Kim, Sae Yun Kwon, Spencer J. Washburn, Scott C. Brooks, Ji Won Yoon, Lucien Besnard
Summary: The study uses Hg isotope ratios to identify the sources and exposure pathways of mercury in bivalves, finding that dissolved Hg phases in the water column are the primary source and exposure pathway to bivalves. This provides new insights into using bivalves as bioindicators for sediment quality monitoring.
Article
Engineering, Environmental
Hui Geng, Ying Xu, Rui Liu, Dianhai Yang, Xiaohu Dai
Summary: This study investigates the effect of cation exchange resin (CER) on the sequential recovery of hydrogen and methane from anaerobic digestion (AD) and the corresponding mechanisms. The results show that CER can simultaneously enhance the production of hydrogen and methane by promoting the solubilisation, hydrolysis, and acidification of organic matter. Additionally, CER facilitates effective contact between bacteria and organic particulates and reduces the energy barrier for mass transfer during methane production. The study also reveals changes in the microbial community structure and metagenomics during the AD process.
Article
Engineering, Environmental
Xiaojing Lin, Zhan Jin, Shunfeng Jiang, Zhiquan Wang, Suqing Wu, Ke Bei, Min Zhao, Xiangyong Zheng
Summary: Dehumidification combined with addition of absorbent resin supplement (ARS) was used to achieve rapid evaporation of non-pretreated urine, resulting in high water evaporation efficiency and nutrient recovery.
Article
Engineering, Environmental
Yangli Che, Chaoran Lin, Shen Li, Jiao Liu, Longhai Zhu, Shilei Yu, Nan Wang, Haoshuai Li, Mutai Bao, Yang Zhou, Tonghao Si, Rui Bao
Summary: Hydrodynamic processes play a crucial role in the transmission of sediments, microbial assembly, and organic carbon redistribution in the ocean. Through experiments and analysis, we found that hydrodynamics shape the assembly of microbial communities and control the redistribution of different sourced organic carbon, thereby influencing microbial-mediated biogeochemical transformation.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Engineering, Environmental
Dan Li, Jieyi Sun, Yibo Fu, Wentao Hong, Heli Wang, Qian Yang, Junhong Wu, Sen Yang, Jianhui Xu, Yunfei Zhang, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: Sulfidation-oxidation treatment of magnetite (Fe3O4) enhances the production of dark center dot OH, which can efficiently degrade dissolved organic matter (DOM) and accelerate carbon cycling.
Article
Engineering, Environmental
Cheng Yu, Kaijun Wang, Kaiyuan Zhang, Ruiyang Liu, Pingping Zheng
Summary: This study implemented a microaerobic-aerobic configuration in a full-scale municipal wastewater treatment facility and investigated the effects on sludge characteristics, pollutant removal, microbial community, and granulation mechanisms. The results showed successful transition from flocculent-activated sludge to well-defined AGS after two months of operation. The primary pathways for pollutant removal were simultaneous nitrification, denitrification, and phosphorus removal. Moreover, the incorporation of internal separators induced shifts in the flow pattern, which promoted granulation.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Article
Engineering, Environmental
Shengyue Chen, Jinliang Huang, Peng Wang, Xi Tang, Zhenyu Zhang
Summary: Accurate prediction of river water quality is crucial for sustainable water management. This study introduces wavelet analysis and transfer learning techniques to assist LSTM modeling, proposing a newly coupled modeling approach that improves short-term prediction of river water quality.
Article
Engineering, Environmental
Bang Du, Xinmin Zhan, Piet N. L. Lens, Yifeng Zhang, Guangxue Wu
Summary: Efficient anaerobic digestion relies on the cooperation of different microorganisms with different metabolic pathways. This study investigated the effects of different operational modes and the addition of powdered activated carbon (PAC) on ethanol metabolic pathways. The results showed that the SBR mode and the presence of CO2 facilitated ethanol metabolism towards propionate production, while the CFR mode with extended solids retention time enriched Geobacter. Adjusting operational modes and PAC addition can modulate anaerobic ethanol metabolism and enrich Geobacter.
Article
Engineering, Environmental
Wanfa Wang, Si-Liang Li, Jun Zhong, Yuanbi Yi, Fujun Yue, Zenglei Han, Qixin Wu, Ding He, Cong-Qiang Liu
Summary: This study compares the carbon biogeochemical processes in karst and non-karst regions within large thermal stratified river-reservoir systems. The results demonstrate that karst reservoirs have a reduced potential for carbon emissions and highlight the importance of considering geologic settings to improve accuracy in regional and global CO2 emission estimates.
Article
Engineering, Environmental
Chunxia Jiang, Zelong Zhao, Dong Zhu, Xiong Pan, Yuyi Yang
Summary: This study analyzed the occurrence and distribution of antibiotic resistance genes (ARGs) in different environmental media of the Yangtze River using metagenomics. Core resistome dominated by multidrug resistance genes was found in all samples, while rare resistome dominated by various resistance genes was more prevalent in plasmids. Specific bacteria were identified as hosts for both core and rare resistomes, with high clinical concern ARGs found in the rare resistome. Particle-associated environment provided the most ideal conditions for resistome hosts. This study provided insights into the genetic locations of ARGs and the community assembly mechanisms of ARG hosts in freshwater environments.
Article
Engineering, Environmental
Yu Zhang, Yongtao He, Linchun Jia, Lei Xu, Zheng Wang, Yueling He, Ling Xiong, Xumeng Lin, Hong Chen, Gang Xue
Summary: By synergizing organic carbon source, thiosulfate, and zero-valent iron, efficient mixotrophic denitrification of oligotrophic secondary effluent can be achieved. Thiosulfate plays a vital role in promoting TN removal efficiency, while corrosion of Fe0 releases OH- to neutralize H+ from thiosulfate-driven denitrification, creating a suitable environment for denitrification. The coordination of thiosulfate and Fe0 maintains the dominance of Thiobacillus for denitrification.