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Andrei Zaharia, Valentin Nedeff, Juan A. López-Ramírez, Emilian Mo?negu?u, Narcis Bârsan, Mirela Lehadus-Panaite, Jamroziak Krzysztof and Claudia Tomozei
In recent years, more and more emphasis has been placed on the use of home filtration systems as a coarse pre-filtration step. The PP (polypropylene) filter cartridge is one of the most common of these systems, with the role of retaining solid suspension...
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Liangtian Wang, Jie Zhou, Yuexin Chang and Hao Xu
In recent years, electrochemical descaling technology has gained widespread attention due to its environmental friendliness and ease of operation. However, its single-pass removal efficiency could be higher, severely limiting its practical application. T...
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Cristina E. Almeida-Naranjo, Víctor H. Guerrero and Cristina Alejandra Villamar-Ayala
Emerging contaminants (ECs) are causing negative effects on the environment and even on people, so their removal has become a priority worldwide. Adsorption and the associated technologies where this process occurs (filtration/biofiltration) have gained ...
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Wenzheng Zhang, Jiumao Cai, Guoliang Zhai, Lei Song and Mouchao Lv
The sand media filter is a crucial component of micro-irrigation filtration systems. Investigating the effects of various factors on filtration performance and the migration patterns of sediment particles within the filter can enhance the healthy operati...
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Chao Han, Hongping Xie, Bin Bai, Rongjun Zhang, Yingchao Gao and Zhekun Zhao
For the massive quantities and negative impacts of dredged mud slurry, its disposal and utilization have become one of the most noticeable issues in the world. In this paper, the flocculation-solidification-high pressure filtration combined method is pro...
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Jin Woo Kim, Saerom Park, Young Whan Sung, Hak Jin Song, Sung Woo Yang, Jiwoo Han, Jeong Wook Jo, Im-Soon Lee, Sang Hyun Lee, Yong-Keun Choi and Hyung Joo Kim
Commiphora myrrha (T.Nees) Engl. resin extracts were prepared via immersion in extraction solvents (hot water, DMSO, hexane, ethanol, and methanol) which have various physical properties, such as different polarity and dielectric constant values. Methano...
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Jinze Sun, Shujie Liu, Jiwei Zhang, Qinghao Tian, Zhijie Yu and Zuodong Xie
As a widely used material in underground engineering, clay?cement slurry grouting is known for its initial poor anti-seepage and filtration capacity, the low strength of the resulting stone body, and its tendency towards brittle failure. To explore effic...
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Milena Martarelli, Luigi Montalto, Paolo Chiariotti, Serena Simoni, Paolo Castellini, Gianmarco Battista and Nicola Paone
This paper presents an experimental study on acoustic attenuation of different types of face masks in use by the general population during the COVID-19 pandemic. In particular, measurements are performed on ten samples of masks, of which four are medical...
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Joelle M. Segovia, Ching-Hsuan Huang, Maxwell Mamishev, Nanhsun Yuan, Jiayang He and Igor Novosselov
During the COVID-19 pandemic, reusable masks became ubiquitous; these masks were made from various fabrics without guidance from the research community or regulating agencies. Though reusable masks reduce the waste stream associated with disposable masks...
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Piotr Kaminski, Katarzyna Tyskiewicz, Zygmunt Fekner, Marcin Gruba and Zbigniew Kobus
This study investigated the impact of subcritical water extraction parameters on the polyphenols and flavonoids content in extracts made of the bark of walnut (Juglans regia L.), as well as antioxidant activity measured using the DPPH and FRAP methods. T...
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