Article
Engineering, Chemical
Senem Yokus, Oyku Nur Bilgin, Ezgi Unal Yilmaz, Hilal Gundogdu, Senem Yazici Guvenc, Emine Can-Guven, Gamze Varank
Summary: This study investigated the treatment of leachate nanofiltration concentrate, which is high-strength wastewater, using advanced electrocoagulation with the addition of persulfate. The optimal operating conditions for the process were determined, and under these conditions, the removal efficiencies for COD, TOC, UV254, and color were found to be 62.6%, 54.3%, 74.2%, and 88.0%, respectively.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Environmental
A. Ronaldo Anuf, K. Ramaraj, Vishnu Sankar Sivasankarapillai, Ragupathy Dhanusuraman, J. Prakash Maran, G. Rajeshkumar, Abbas Rahdar, Ana M. Diez-Pascual
Summary: This study investigates the impact of electro coagulation (EC) method on the treatment of rice mill waste using two different electrode materials (iron and aluminum). The study evaluates the influence of various parameters on the reduction of COD, TDS, and TSS in the waste. The results indicate that the aluminum electrode is more effective in treating rice mill waste compared to the iron electrode using the EC method.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Chemistry, Physical
Naima Faghmous, Djallel Bouzid, Marwa Boumaza, Asma Touati, Olivier Boyron
Summary: This study optimized insulin-loaded chitosan-coated W/O/W multiple emulsions by investigating the effect of process variables using Box-Behnken design. The optimized multiple emulsion showed desirable particle size, zeta potential, and entrapment efficiency for insulin delivery. The in vitro drug release behavior followed a specific model and indicated the potential of chitosan-coated W/O/W multiple emulsions as an effective oral drug delivery system for insulin.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Mehmet Ali Topcu, Aydin Ruesen, Sadik Alper Yildizel
Summary: This paper proposes a hydrometallurgical process for copper recovery from copper anode slime, using ionic liquid leaching-precipitation-calcination routes. The optimal leaching conditions were determined by the hybrid Taguchi/Box-Behnken optimization, achieving a 95% copper leaching efficiency. The precipitation with ammonium hydroxide solution at room temperature and calcination at 600℃ resulted in a highly pure copper recovery as CuO. This hydrometallurgical process is simple, environmentally friendly, and suitable for copper recovery from copper anode slime.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Biotechnology & Applied Microbiology
Charlie Guittin, Faiza Macna, Isabelle Sanchez, Xavier Poitou, Jean-Marie Sablayrolles, Jean-Roch Mouret, Vincent Farines
Summary: This study aims to understand the relationship between yeast metabolism and the synthesis of fermentation aromas under lipid-excess conditions in Cognac production, taking into account the effects of turbidity, assimilable nitrogen, and fermentation temperature. The research found that high lipid levels promote the synthesis of higher alcohols, with little impact on acetate esters and ethyl esters.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Engineering, Environmental
Kawthar Yahya, Mohamedou Ba, Imed Msadok, Ammar Mlayah, Ezzeddine Srasra, Noureddine Hamdi
Summary: Phosphate-loaded industrial wastewaters have caused significant environmental issues in the Gulf of Gabes-Tunisia. This study compared the phosphate adsorption capacities of two types of Tunisian activated clays and optimized the phosphate removal efficiency using response surface methodology. The results showed that both activated clays demonstrated high adsorption capacities and could be considered as a cost-effective and efficient alternative for phosphate removal from industrial wastewaters.
WATER ENVIRONMENT RESEARCH
(2022)
Article
Engineering, Environmental
Jie Li, Yumin Cao, Jianbo Lu, Changcai Qin, Wei Zhang, Xintong Zhang, Xuesong Yi, Wenzheng Yu
Summary: This study investigated the efficacy and mechanism of As(V) removal by Ti electrocoagulation (Ti EC) using batch test. The Box-Behnken design method was used to optimize the main process parameters, and a quadratic polynomial mathematical model was developed. The flocs generated by Ti EC were nano-aggregates with high reactivity, and the As(V) removal mechanisms involved various processes. Ti EC showed high efficiency in removing As(V) from real water samples. Overall, Ti EC has the potential to be a green, cost-effective, and efficient water treatment technology for As(V) removal.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Zoltan Kovacs, Csanad Molnar, Urska Lavrencic Stangar, Vasile-Mircea Cristea, Zsolt Pap, Klara Hernadi, Lucian Baia
Summary: ZnO photocatalysts were synthesized via solvothermal method and an experimental design was used to investigate the influence of parameters on both photocatalytic activity and crystal structure, with water content of the solvent identified as the primary factor influencing the responses.
Article
Polymer Science
Sara A. Abosabaa, Aliaa N. ElMeshad, Mona G. Arafa
Summary: The study aimed to propose chitosan as a nanocarrier for caffeine, optimizing the preparation of chitosan nanoparticles loaded with caffeine for enhanced topical penetration. The results demonstrated successful implementation of Box-Behnken design for chitosan-based nanoparticles, confirming the effectiveness of the optimized formulation through experimental validation.
Article
Green & Sustainable Science & Technology
Tumpa R. Sarker, Sonil Nanda, Ajay K. Dalai
Summary: This study investigates the optimal conditions for producing H2-rich fuel gas from canola hull pellets using supercritical water gasification. Temperature was found to be the most important parameter, followed by biomass-to-water ratio and residence time. The highest H2 yield of 3.43 mol/kg was achieved at 575 degrees C, 45 min, and a biomass-to-water ratio of 1:20. Comparative evaluation showed that torrefaction treatment significantly enhanced gas yield and composition. Hydrochar produced at higher temperatures had better quality.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Biotechnology & Applied Microbiology
Abeer El Shahawy, Radwa H. Mohamadien, Esraa M. El-Fawal, Yasser M. Moustafa, Mohamed Mohamed Khairat Dawood
Summary: This study investigated the treatment of petroleum wastewater effluent using hybrid techniques (photo-Fenton oxidation and adsorption) to effectively remove organic pollutants such as COD and phenol. The results showed that the use of photo-Fenton oxidation followed by adsorption with Phragmites australis achieved significant removal percentages for COD and phenol. The study suggests that P. australis is a promising natural adsorbent material for wastewater treatment.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Inorganic & Nuclear
Amel Chibani, Sana Ncib, Afef Barhoumi, Wided Bouguerra, Elimame Elaloui
Summary: The purpose of this study was to investigate the removal of sulfate from water using electrocoagulation. The optimal conditions were determined and a mathematical model describing the process was established. The results showed that electrocoagulation had a good performance in removing sulfate from seawater and brackish water.
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS
(2023)
Article
Pharmacology & Pharmacy
Sahar M. AlMotwaa, Waad A. Al-Otaibi
Summary: This study aimed to optimize the production conditions of Santolina chamaecyparissus essential oil-in-water nano-emulsion, and demonstrated its enhanced antibacterial and anticancer activities at a low oil concentration.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Juan Cheng, Jingqi Gao, Jie Zhang, Wenjuan Yuan, Shiying Yan, Jie Zhou, Jian Zhao, Su Feng
Summary: The study found that under optimal conditions, Shewanella putrefaciens achieved a maximum Cr(VI) removal efficiency of 85.68%. pH and temperature were significant factors that influenced the biosorption effect. Scanning electron microscopy revealed granular complexes formed on the surfaces of Shewanella putrefaciens after Cr(VI) biosorption, and Fourier transform infrared spectroscopy analysis indicated the distribution of Cr(VI) was related to specific functional groups on the cell surface.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Engineering, Environmental
Senem Yazici Guvenc, Emine Can-Guven, Gamze Varank
Summary: The study investigated the treatment of paint production industry wastewater using the EC-PS process, achieving 64% COD and 98.1% CN removal rates under optimal conditions. Removal efficiencies increased with higher PS dose, current density, and reaction time, with the best results obtained under acidic pH conditions. Both sulfate and hydroxyl radicals participated in the process as shown in scavenging studies.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
