Article
Engineering, Chemical
Hao Peng, Vatsal Shah, K. Li
Summary: The CCD method has shown superiority in producing high-performance PVDF membranes, with the ability to tailor membrane properties by changing the cooling temperature. Increasing the cooling temperature results in larger separation surface pore sizes and higher membrane permeances, especially for membranes prepared using higher molecular weight PVDF.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Applied
Zixuan Wu, Xin Ji, Quanlong He, Hongbo Gu, Wei-xian Zhang, Zilong Deng
Summary: To mitigate membrane fouling and address the trade-off between permeability and selectivity, nanocellulose fine-tuned polyvinylidene fluoride (PVDF) porous membranes were fabricated. The incorporation of cellulose nanocrystals and oxidized cellulose nanofibers improved the surface charge, hydrophilicity, porosity, and tensile strength of the membranes. The NC-PVDF membranes exhibited enhanced flux, rejection, and fouling resistance, making them promising candidates for membrane separation.
CARBOHYDRATE POLYMERS
(2024)
Article
Engineering, Chemical
Vatsal Shah, Bo Wang, Kang Li
Summary: PVDF membranes prepared by the combined crystallisation and diffusion technique showed superior permeation rates compared to conventional methods, and by blending PMMA into PVDF-DMSO solutions, the pore size was reduced from 30 nm to 15 nm without changing operational conditions. The pore size reduced with increasing PMMA concentration in the membranes, but pure water flux did not decline, and higher molecular weight PMMA resulted in smaller pore size in the membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Polymer Science
Nour Alnairat, Muna Abu Dalo, Rund Abu-Zurayk, Saida Abu Mallouh, Fadwa Odeh, Abeer Al Bawab
Summary: Silver nanoparticles were successfully synthesized using aqueous plant extract, showing high stability and antibacterial activity against E. coli and S. aureus. The nanoparticles were incorporated into PVDF membranes, demonstrating significant antibiofouling behavior. Membrane properties were characterized using various techniques, and rejection rate efficiency was evaluated using BSA, showing improved rejection rate with AgNPs.
Article
Environmental Sciences
Kai Li, Weihua Xu, Gang Wen, Zhipeng Zhou, Min Han, Shujia Zhang, Tinglin Huang
Summary: This study systematically investigated the effects of long-term ozone exposure on the properties and performance of a polyvinylidene fluoride (PVDF) ultrafiltration (UF) membrane reinforced by a polyethylene terephthalate (PET) layer. The study found that ozone exposure resulted in an increase in pore size and a decrease in surface hydrophilicity of the membrane, as well as a decrease in membrane tensile strength. Furthermore, long-term ozone exposure led to an increase in membrane permeability, a decrease in retention ability, and an increase in organic fouling propensity.
Article
Multidisciplinary Sciences
Nadeem Baig, Zeeshan Arshad, Shaikh A. Ali
Summary: The modified PVDF membrane can efficiently separate oil and water from nano-emulsions, making it a promising solution for various applications.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Kai Li, Qian Su, Shu Li, Gang Wen, Tinglin Huang
Summary: The study found that NaClO at different pH values will have different aging effects on PVDF and PES membranes, leading to increased permeability, decreased retention ability, and reduced mechanical strength of the membranes. The aging process is mainly due to the oxidation and release of polyvinyl pyrrolidone (PVP) as well as the chain scission of PVDF or PES molecules caused by NaClO.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2021)
Proceedings Paper
Materials Science, Multidisciplinary
Snehal Menon, Kiran Bansode, Somnath Nandi, V. Kalyanraman
Summary: The productivity of membrane processes is affected by fouling deposition and membrane cleaning effectiveness. Chemical membrane cleaning can restore membrane flux, but repetitive use can harm membrane structure and properties, leading to premature aging and reduced lifespan. Each chemical cleaner has different effects on membrane conformation and chemistry.
MATERIALS TODAY-PROCEEDINGS
(2021)
Article
Engineering, Environmental
Maria Salud Camilleri-Rumbau, Jose Luis Soler-Cabezas, Knud Villy Christensen, Birgir Norddahl, Jose Antonio Mendoza-Roca, Maria Cinta Vincent-Vela
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Engineering, Chemical
Mingbo Ji, Jianquan Luo, Jiang Wei, John Woodley, Anders Egede Daugaard, Manuel Pinelo
SEPARATION AND PURIFICATION TECHNOLOGY
(2019)
Article
Environmental Sciences
Maria Salud Camilleri-Rumbau, Olga Popovic, Kelly Briceno, Massimiliano Errico, Lene Fjerbwk Sotoft, Knud Villy Christensen, Birgir Norddahl
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2019)
Review
Environmental Sciences
Claudio Madeddu, Maria Cinta Roda-Serrat, Knud Villy Christensen, Rime B. El-Houri, Massimiliano Errico
Summary: The Biocascade methodology views biowaste as a resource for producing high and low-value products, optimizing biomass utilization through a hierarchical structure, and minimizing waste generation.
WASTE AND BIOMASS VALORIZATION
(2021)
Article
Environmental Sciences
Maria Cinta Roda-Serrat, Thalles Allan Andrade, Janus Rindom, Peter Brilner Lund, Birgir Norddahl, Massimiliano Errico
Summary: The recovery efficiency of waste valorization processes depends on an interplay of different conditions, and optimization through establishing mathematical relations is a strong tool. In this study, the extraction of anthocyanins from chokeberry juice pomace was optimized using response surface methodology, with optimal conditions identified for maximizing anthocyanin concentration and total anthocyanin content extracted. The developed model predicted the overall anthocyanin content and concentration in the extract, as well as final pH and total dissolved solids satisfactorily, setting the ground for further process design.
WASTE AND BIOMASS VALORIZATION
(2021)
Review
Environmental Sciences
Maria Salud Camilleri-Rumbau, Kelly Briceno, Lene Fjerbaek Sotoft, Knud Villy Christensen, Maria Cinta Roda-Serrat, Massimiliano Errico, Birgir Norddahl
Summary: This review paper focuses on the physico-chemical characteristics of manure and digestates, as well as the design of membrane-based systems for processing these liquid fractions. It discusses solid-liquid separation technologies, membrane fouling mechanisms and operating conditions, providing insights for optimizing membrane performance and efficiency in handling farm effluents.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Biotechnology & Applied Microbiology
Signe H. Ptak, Massimiliano Errico, Knud Christensen
Summary: The study found that the elastase inhibition activity of fucoidan extracts is influenced by innate algae factors and glucose content. Some species are more suitable for cosmetic use, and the harvest time may need to be optimized.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Article
Fisheries
Signe H. Ptak, Anders L. Hjuler, Sebastian Ditlevsen, Xavier Frette, Massimiliano Errico, Knud Christensen
Summary: This study investigated the impact of season and geographical location on the sulphur content of fucoidan extracts, finding variations in sulphation levels among different species, likely influenced by their growth environment and reproductive strategies.
AQUACULTURE RESEARCH
(2021)
Article
Engineering, Chemical
Thalles Allan Andrade, Fabiane Hamerski, Damian Estuardo Lopez Fetzer, Maria Cinta Roda-Serrat, Marcos Lucio Corazza, Birgir Norddahl, Massimiliano Errico
Summary: This study aimed to investigate the optimum conditions for ultrasonic-assisted pressurized liquid extraction of anthocyanins from Aronia melanocarpa pomace. Through optimization of pressure, temperature, ultrasound intensity, and solvent concentration, the total anthocyanin content extracted was increased by 19% at 80 degrees Celsius.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Review
Food Science & Technology
Massimiliano Errico, Jose A. P. Coelho, Roumiana P. Stateva, Knud V. Christensen, Rime Bahij, Stefania Tronci
Summary: This paper explores the transformation of biowastes from food industry and agriculture into high-value products through four examples. The goal is to provide insight into the principles of green transition and a circular economy. The study thoroughly analyzes different extraction methods, with a particular emphasis on cutting-edge green technologies. The objective is to promote the sustainable utilization of biowaste and support the green transition to a more environmentally conscious economy.
Article
Biotechnology & Applied Microbiology
Leonardo Sibono, Stefania Tronci, Ron Hajrizaj, Knud Christensen, Massimiliano Errico, Massimiliano Grosso
Summary: The enzymatic hydrolysis of dried brewers' spent grain without pretreatment was investigated. Enzymatic hydrolysis experiments were conducted using Cellic(R) CTec2 as the enzyme complex and the glucose yield was optimized with respect to temperature, solid loading, and enzyme loading. The optimized enzymatic hydrolysis yielded 11.71 ± 0.09 g(glucose) g(DM)(-1) at 48.6°C, 6.7% w/w biomass loading, and 0.22 mL g(DM)(-1) enzyme concentration, corresponding to 44% of the theoretical yield. The temporal profile of glucose concentration was modeled using Chrastil's model and a modified version, with the modified Chrastil's model providing more precise parameter estimation compared to the classical one.
BIOCHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Massimiliano Errico, Claudio Madeddu, Mathilde Flemming Bindseil, Signe Dall Madsen, Sylvie Braekevelt, Maria Salud Camilleri-Rumbau
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2020)