Article
Engineering, Environmental
Bruno Bicudo, Doris van Halem, Shreya Ajith Trikannad, Giuliana Ferrero, Gertjan Medema
Summary: This study demonstrates the feasibility of low voltage iron electrocoagulation for municipal secondary effluent treatment, showing effective removal of microbial indicators, Antibiotic Resistant Bacteria (ARB), and viruses. Increasing the charge dosage of iron electrodes can enhance bacterial removal efficiency.
Article
Engineering, Environmental
Mrinal Roy, Case M. van Genuchten, Luuk Rietveld, Doris van Halem
Summary: Arsenic is a toxic element found in many groundwater sources around the world. Traditional removal techniques often require chemical treatment, but a novel bio-FeEC system was developed in this study, which effectively removes arsenic without the need for chemicals.
Article
Engineering, Environmental
Sara Glade, Siva R. S. Bandaru, Mohit Nahata, Jay Majmudar, Ashok Gadgil
Summary: This paper discusses the challenges faced by small, low-income, and rural communities in the US in accessing clean drinking water contaminated with arsenic, and describes efforts to use conventional iron electrocoagulation (Fe-EC) to address these challenges. Field trials in a rural California community successfully demonstrated the effectiveness of high current density operation, external H2O2 dosing, and proper waste management in removing arsenic from water and meeting state standards.
Article
Biotechnology & Applied Microbiology
Syeda Nishat Ashraf, Jay Rajapakse, Les A. Dawes, Graeme J. Millar
Summary: The study investigated the use of iron (steel) electrodes in a continuous electrocoagulation (EC) process to treat coal seam gas (CSG) associated water with high turbidity (421 NTU). It was found that extending the hydraulic retention time (HRT) promoted removal of dissolved substances, while turbidity was optimally reduced at an HRT of 30 seconds. Additionally, polarity reversal time (PRT) was found to reduce power consumption.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Multidisciplinary
Khalid Bani-Melhem, Muhammad Rasool Al-Kilani
Summary: The electrocoagulation (EC) process is effective for the treatment of highly loaded grey water (HLGW) using iron or mild steel electrodes under different current densities. The removal efficiencies of COD and turbidity were above 85%, with better performance observed for mild steel electrodes. The study suggests further investigations on the effect of metal alloy type and electrode physical properties in EC technology for HLGW treatment.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Plant Sciences
Boon Huat Cheah, Yu-Ling Chen, Jing-Chi Lo, I-Chien Tang, Kuo-Chen Yeh, Ya-Fen Lin
Summary: The study compared the physiological, transcriptional, and biochemical properties of rice subjected to zinc starvation or excess, revealing that both forms of zinc stress inhibited root and shoot growth, with different gene expressions showing unique responses to each form of zinc stress.
PLANT CELL AND ENVIRONMENT
(2021)
Article
Chemistry, Multidisciplinary
Daisy Das, Barun Kumar Nandi
Summary: The study focused on using electrocoagulation to treat process water from an iron ore beneficiation plant, successfully removing various metal ions with high efficiency. Ideal operating conditions were identified for effective treatment, leading to significant removal rates while maintaining low energy consumption and operational costs.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Jinhee Lee, Yong-Tae Kim, Jinsub Choi
Summary: Electrocoagulation is an emerging technology that offers flexibility, easy setup, and eco-friendliness for pollutant removal in wastewater. This study explores environment-friendly strategies for the separation, retreatment, and utilization of microplastics through electrocoagulation. The findings demonstrate efficient separation of Fe3O4-formed flocs on polyethylene (PE) particles using magnetic force and effective photolysis of PE after removing Fe3O4. The removed Fe3O4 can be recycled into iron-oxalate compounds for battery applications, while heat treatment of Fe3O4-PE flocs leads to the formation of Fe3O4 core-carbon shell nanoparticles with excellent anode performance in lithium-ion batteries.
Article
Environmental Sciences
Manilal A. Madhavan, Soloman P. Antony
Summary: A novel electrocoagulation system with polarity shift ability was designed for the treatment of produced water, aiming to reduce electrode passivation issues. Experimental results showed that polarity changeover in the switching mode operation significantly improved oil removal efficiency compared to the conventional mode.
Article
Environmental Sciences
Carolina Vicente, Joao R. Silva, Andreia D. Santos, Joao F. Silva, Jorge T. Mano, Luis M. Castro
Summary: Electrocoagulation was studied as a method for treating furniture industry wastewater containing polyvinyl acetate (PVAc). The study evaluated the effects of inter-electrode distance, current density, and mode on treatment performance. The results showed that low inter-electrode distance and Alternating Pulsed Current (APC) mode resulted in reduced energy consumption and better treatment performance. Despite the promising results, the treatment procedures were insufficient to meet the legal requirements for water discharge.
Article
Engineering, Environmental
Rana Uwayid, Eric N. Guyes, Amit N. Shocron, Jack Gilron, Menachem Elimelech, Matthew E. Suss
Summary: Capacitive deionization (CDI) is an emerging membraneless water desalination technology that achieves ion separation by electrostatic adsorption on charged electrode plates. Sulfonated activated carbon electrodes enable perfect divalent cation selectivity in CDI, with significant removal of divalent cations and zero removal of monovalent cations. This technology offers high efficiency, low cost, and low energy consumption.
Review
Engineering, Environmental
Locksley F. Castaneda, Juan F. Rodriguez, Jose L. Nava
Summary: This review examines the removal of fluoride from natural groundwater using electrocoagulation, with aluminum and aluminum alloys proving to be the most effective materials for fluoride removal. Iron, on the other hand, does not meet WHO guidelines for fluoride removal. The use of parallel plate continuous EC reactors allows for flow rate control and uniform electrode wear, with relatively low operating costs.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Green & Sustainable Science & Technology
Khalid S. Hashim, Andy Shaw, Rafi Alkhaddar, Patryk Kot, Ahmed Al-Shamma'a
Summary: Organic matter is a common pollutant in freshwater sources and can negatively impact the performance of water treatment plants. Current research has successfully combined electromagnetic radiation and electrocoagulation technologies to purify water contaminated with organic matter-heavy metal complexes.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Multidisciplinary
Jagdeesh Kumar, Himanshu Joshi, Sandeep K. Malyan
Summary: In this study, nanofiltration (NF) membrane and electrocoagulation (EC) processes were used to remove copper, nickel, and zinc from water. The results showed that EC was more efficient than NF in removing the studied metals, and both methods had advantages over conventional precipitation and adsorption processes.
APPLIED SCIENCES-BASEL
(2022)
Article
Environmental Sciences
Olga Solcova, Pavel Krystynik, Pavel Dytrych, Jakub Bumba, Frantisek Kastanek
Summary: The article discusses simple methods for decontaminating groundwater near brownfields contaminated with organic and inorganic substances. The methods include coagulation-sedimentation, oxidation-reduction, and adsorption. However, potential costs and scalability issues restrict their practical applications.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Chemistry, Multidisciplinary
Soumaya Gmar, Alexandre Chagnes, Ilhem Ben Salah Sayadi, Jean-Francois Fauvarque, Mohamed Tlili, Mohamed Ben Amor
SEPARATION SCIENCE AND TECHNOLOGY
(2017)
Article
Electrochemistry
Naila Ben Grich, Anis Attour, Marie Le Page Mostefa, Sirine Guesmi, Mohamed Tlili, Francois Lapicque
ELECTROCHIMICA ACTA
(2019)
Article
Chemistry, Applied
Kotbia Labiod, Sabir Hazourli, Marwa Bendaia, Mohamed Tlili, Adel AitBara, Radouane Graine, Hazem Meradi
Summary: This study evaluates the adsorption capacity of an abundant natural diatomite to remove the harmful organic pollutant carmoisine. The results show that the adsorption process is effective and influenced by various factors.
ADSORPTION SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Sonia Mokni, Mohamed Tlili, Naceur Jedidi, Abdennaceur Hassen
Summary: Antibiotics are emerging micropollutants and can be harmful to human health and the environment. Conventional wastewater treatment methods are ineffective in removing antibiotics, making effluents a major source of antibiotic pollution. Electrocoagulation (EC) has shown promise in treating refractory pharmaceuticals but has been less studied for antibiotics. This study applied EC for the first time to remove ofloxacin and chloramphenicol, two widely dispersed antibiotics. Results showed that EC with Al-electrodes effectively removed these antibiotics from aqueous solution. OFL was mainly removed through adsorption on electro-generated Al(OH)(3) flocs, while cathodic degradation was responsible for CAP reduction. The EC process also eliminated the antibacterial activity of OFL and CAP.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Crystallography
Raghda Hamdi, Mohamed Mouldi Tlili
Summary: In this study, the influence of chemical additives on the formation of calcium carbonate (CaCO3) was investigated using the CO2-degasification method. The results showed that the additives affected both the crystallization kinetics and the microstructure of CaCO3. Sulfate and magnesium ions had a greater influence on nucleation than crystal growth, and the simultaneous addition of these ions had an accentuated effect on both processes. Additionally, the additives promoted the formation of aragonite, a new crystal polymorph, in addition to the initial polymorphs of calcite and vaterite.
Article
Chemistry, Multidisciplinary
Raghda Hamdi, Mohamed Mouldi Tlili
Summary: This study introduces a novel method to investigate the early stages of nucleation in calcium carbonate crystallization. The research demonstrates the existence of different ion pairs during the prenucleation stage and the influence of foreign salts on their formation rate and nucleation kinetics.
Article
Engineering, Chemical
Raghda Hamdi, Mohamed Tlili
DESALINATION AND WATER TREATMENT
(2019)
Article
Engineering, Chemical
Naila Ben Grich, Anis Attour, Marie Le Page Mostefa, Mohamed Tlili, Francois Lapicque
DESALINATION AND WATER TREATMENT
(2019)
Article
Water Resources
Soumaya Gmar, Nawel Helali, Ali Boubakri, Ilhem Ben Salah Sayadi, Mohamed Tlili, Mohamed Ben Amor
APPLIED WATER SCIENCE
(2017)
Article
Engineering, Chemical
Hanen Azaza, Amira Doggaz, Lassaad Mechi, Virgil Optasanu, Mohamed Tlili, Mohamed Ben Amor
DESALINATION AND WATER TREATMENT
(2017)
Article
Geosciences, Multidisciplinary
Amjad Kallel, Anis Attour, Ismail Trabelsi
ARABIAN JOURNAL OF GEOSCIENCES
(2017)
Article
Engineering, Environmental
Francisco de Borja Ojembarrena, Elena Fuente, Angeles Blanco, Carlos Negro
Summary: Accumulation of Cr(VI) in industrial fiber cement process water can affect product quality and health, and it needs to be removed to avoid environmental risks. The study found that cationic cellulose nanocrystals (CCNCs) have higher adsorption efficiency and lower cost compared to conventional adsorbents.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Review
Engineering, Environmental
Shentan Liu, Yangchen Zhang, Xiaojuan Feng, Sang-Hyun Pyo
Summary: This paper summarizes the common problems of constructed wetlands (CWs) and proposes corresponding optimized solutions, including thermal insulation and additional aeration in cold climates, choosing suitable plant species and planting patterns to enhance phytoremediation in CWs, using various methods to monitor and evaluate CW clogging, implementing anti-clogging measures, controlling greenhouse gas emissions during CW treatment, constructing and utilizing CW databases, designing appropriate CW types, and implementing strict technical management and supervision.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Norzila Mohd, Nazlina Haiza Mohd Yasin, Wan Hasnidah Wan Osman, Mohd Sobri Takriff
Summary: This study demonstrates that Chlamydomonas sp. is effective in removing nutrients from palm oil mill effluent and shows particular efficiency in the removal of ammonium and phosphate.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Mingzhen Zhang, Guijian Liu, Ruijia Liu, Jinzhao Xu, Wen Si, Yong Wei
Summary: Tieguanyin tea stem was used to synthesize modified biochar for the adsorption of copper and zinc. Among the modified biochar, Fe-BCs had the highest adsorption capacity, with Fe-BC650 being the best adsorbent. It reached adsorption equilibrium in 1 minute and had a maximum adsorption capacity of 303.5996 mg/g for Cu (II) and 254.0711 mg/g for Zn (II) in single-metal solutions. However, there were antagonistic impacts between Cu2+ and Zn2+.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Lingling Zhao, Qiaoshu Zhou, Yun Yang, Yuan Zhang, Yewei Qiu, Yanjun Chen, Xian Jin, Xiangjun Yang, Shixiong Wang
Summary: This research presents a method for selectively recovering gold from e-waste water using metal sulfides microspheres prepared by hydrothermal technique. The results show that the assistance of visible light significantly improves the gold adsorption performance of metal sulfides. The metal sulfides exhibit excellent gold adsorption properties, high selectivity, ultra-high adsorption capacity, and good recyclability.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Laishram Saya, W. Rameshwor Singh, Sunita Hooda
Summary: Organic-inorganic nanoblends, such as polysaccharide-blended-inorganic ones, have versatile applications and have gained significant research attention. In this study, a magnetic guar gum/graphene oxide nanocomposite blended with CuO was successfully prepared and investigated for its adsorption capacity for ciprofloxacin removal. The results showed that the nanocomposite exhibited excellent adsorption capacity and the adsorption process was spontaneous.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Umit Ecer, Sakir Yilmaz
Summary: A novel and effective catalyst Co@MIL-68(Fe)@Fe3O4@CM-BC was synthesized and used for the catalytic reduction of crystal violet in aqueous environments. The catalyst showed high efficiency in degrading crystal violet under specific conditions, and exhibited good regeneration performance.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Chi Zhang, Miao Zhang, Haohan Yang, Wei Cai, Jun Wu
Summary: Enhancing the bioaugmentation of common nitrifiers in the partial nitrification/anammox process can decrease the activity of nitrite oxidizing bacteria and increase the activity of anammox bacteria, leading to improved total nitrogen removal efficiency.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Runzhang Zuo, Dajun Ren, Yangfan Deng, Canhui Song, Yubin Yu, Xiejuan Lu, Feixiang Zan, Xiaohui Wu
Summary: This study found that fine bubble aeration in membrane bioreactors (MBR) can better control membrane fouling and reduce energy consumption. However, compared to fine bubble aeration, coarse bubble aeration released more proteins and polysaccharides, resulting in a decrease in functional bacteria and enzymes involved in nitrogen and phosphorus pathways.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Ch Tahir Mehmood, Jiekai Dai, Hanjun Zhao, Ziyi Zhong
Summary: Wirelessly powered photocatalyst-coated spheres (WPS) have been developed and demonstrated for various applications, including photodegradation and fouling control. These WPS are cost-effective, easy to fabricate, and have excellent visible light sources, making them suitable as carriers for photocatalysts.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Yifan Wang, Xiaoxuan Kang, Yuting Li, Ruyi Li, Chang Wu, Luyao Wang, Chongqing Wang, Tao Yang, Ming Ge, Zhangxing He
Summary: Cobalt/carbon nanofibers (Co/CNF) were prepared and exhibited excellent catalytic activity in the degradation of tetracycline by activating peroxodisulfate (PDS). The effects of process parameters on tetracycline removal were studied, and the reaction mechanism was confirmed through experiments.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Ting Wei, Yaqian Zhao, Jia Guo, Bin Ji, Alvaro Pun Garcia, Abraham Esteve Nunez
Summary: This study developed a novel lightweight substrate (Al-NLS) composed of aluminum sludge and polyurethane, and investigated its effectiveness in constructed wetlands (CWs). Results showed that Al-NLS had favorable adsorption capacities for phosphorus and removal efficiencies for pollutants in real domestic wastewater. It also positively influenced the microbial community. Therefore, Al-NLS can be considered as a new alternative substrate in CWs technology.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Dabojani Das, Achinta Bordoloi, Heyang Yuan, Daniel J. Caldwell, Rominder P. S. Suri
Summary: This study evaluates the degradation kinetics of antibiotic resistance genes and mobile genetic elements in water matrices by ozone treatment. The results show that extracellular antibiotic resistance genes can be effectively removed, while intracellular genes are more resistant to degradation. The impact of wastewater matrix on gene degradation is minimal.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)