Article
Microbiology
Robert Ruginescu, Madalin Enache, Octavian Popescu, Ioana Gomoiu, Roxana Cojoc, Costin Batrinescu-Moteau, Gabriel Maria, Maria Dumbravician, Simona Neagu
Summary: This study evaluated the enzyme activities of some halotolerant strains and characterized their functional parameters. Bacillus strains showed the highest catalytic activities. The selected Bacillus strains produced enzymes that were active over wide ranges of salinity, temperature, and pH.
Article
Crystallography
Quanshuai Song, Jianrui Zha, Yulong Bai, Long Chen, Yao Zhang, Hong Guo
Summary: The painted stone carvings from Pujiang Museum in Chengdu were discovered in the Ming tombs near Chengdu Metro Line 7. These tombs, which were the burial sites of the eunuchs serving the Shu King, were primarily made of stone and adorned with valuable paintings and carvings. However, these artworks experienced significant damage from salt during their burial. Through various scientific analyses, including optical microscopy, Raman spectroscopy, ion chromatography, X-ray fluorescence spectroscopy, X-ray powder diffraction, and petrographic microscopy, the researchers identified the salt composition and its impact. The majority of the salt on the painted layer was found to be CaSO4 center dot 2H(2)O. The deterioration of the paint layer caused by gypsum occurred in two stages: before excavation and during in situ preservation. This research serves as a foundation for the removal and prevention of salt efflorescence.
Article
Environmental Sciences
Yarong Song, Kirthi Chetty, Ulf Garbe, Jing Wei, Hao Bu, Liza O'moore, Xuan Li, Zhiguo Yuan, Timothy McCarthy, Guangming Jiang
Summary: This study presents an innovative bio-concrete mixed with anaerobic granular sludge to mitigate sewer corrosion, showing higher corrosion resistance compared to control concrete. The activity of sulfate-reducing bacteria derived from the granular sludge is the main reason for the improved corrosion resistance of bio-concrete.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Zhufan Lin, Shaoan Cheng, Zhen Yu, Jiawei Yang, Haobin Huang, Yi Sun
Summary: This study investigated an anode-cathode polarity inversion method to rapidly cultivate high-performance nitrate-reducing bio-cathode and found a correlation between the oxidation performance and the reduction performance. The bioelectrode with high bio-anodic bio-oxidation electroactivity achieved a significantly higher nitrate removal rate compared to the bioelectrode with low bio-oxidation electroactivity. The findings provide a novel strategy for enhancing bio-cathodic nitrate removal performance and have potential implications for the development of bio-cathodes with specific functions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Studies
Xinhu Li, Min Guo
Summary: Wind erosion affects surface soil properties by removing fine soil particles, but the presence of a salt crust can prevent wind erosion and protect fine soil particles. This study investigated paired samples from salt-crusted and non-crusted surface soils in the Tarim River Basin. The results showed that salt-crusted soils had finer particles compared to soils without a salt crust, and the silt content showed the largest difference between paired soils. The salt content and salt crust strength varied greatly among sites, and there was only a weak relationship between salt content and crust strength. The study concluded that wind erosion and salinization cause spatial heterogeneity in soil texture, especially for silt particles, and the variation in salt crust strength should be considered in future management.
Article
Microbiology
Yukihiro Kimura, Kazuna Nakata, Shingo Nojima, Shinji Takenaka, Michael T. Madigan, Zheng-Yu Wang-Otomo
Summary: Halorhodospira (Hlr.) species are the most halophilic and alkaliphilic purple bacteria. Hlr. halochloris is the only known photoautotroph that can perform photosynthesis under thermophilic, halophilic, and alkaliphilic conditions. Electrostatic charges play a crucial role in the spectroscopic properties and thermal stability of Hlr. halochloris.
Article
Chemistry, Multidisciplinary
Pilar Bosch-Roig, Lourdes Perez-Castro, Angeles Fernandez-Santiago, Ignacio Bosch
Summary: This study developed an innovative bio-desalination protocol for the cleaning of a granite pavement at Conxo Chapel, demonstrating the potential and advantages of biocleaning technology in cultural heritage restoration.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Environmental
Liangjing Zhang, Peng Lv, Yuan He, Shiwei Li, Jinhui Peng, Libo Zhang, Kaihua Chen, Shaohua Yin
Summary: The chloride salt in rare earth smelting wastewater was effectively removed using Friedel's salt precipitation and ultrasonic enhancement, with optimal conditions determined through systematic investigation. The effect of ultrasonic enhancement was significant in improving chloride removal efficiency, meeting effluent concentration requirements.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Energy & Fuels
Shuyuan Deng, Bo Wang, SanBao Su, Shanshan Sun, Yuehui She, Fan Zhang
Summary: This study investigated the field application of a bio-inhibitor (nitrate and nitrite injection) for souring control in an oilfield. The results showed that the bio-inhibitor effectively removed H2S from the injected water, leading to cost-effective treatments for souring control.
Article
Engineering, Environmental
Yi-Hao Tong, Yu-Zhe Wu, Zhen-Liang Xu, Li-Han Luo, Sun-Jie Xu
Summary: This study developed a new loose nanofiltration (NF) membrane for treating textile wastewater. The membrane, made of ethylene vinyl alcohol (EVAL) and modified MIL-101(Fe), exhibited high water permeability and superior rejection of dyes. It also demonstrated excellent antifouling capacity and long-term stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Kotryna Cekuolyte, Renata Gudiukaite, Vaidas Klimkevicius, Veronika Mazrimaite, Andrius Maneikis, Egle Lastauskiene
Summary: This study focuses on the biosynthesis of silver nanoparticles using the cell-free secretomes of four Geobacillus bacterial strains, and the synthesized nanoparticles were characterized using various techniques.
Article
Environmental Sciences
Naif Abdullah Al-Dhabi, Mariadhas Valan Arasu
Summary: Chlortetracycline (CTC) degradation using potential microbial consortia or individual bacterial strains is an effective method for improving bioremediation potential. The co-culture of bacterial strains has the ability to efficiently degrade CTC and the degradation potential is influenced by factors such as pH, initial concentration, and incubation time. Additionally, immobilized bacterial cells showed improved degradation potential compared to free cells, demonstrating the effectiveness and feasibility of biodegradation in wastewater.
ENVIRONMENTAL RESEARCH
(2022)
Article
Humanities, Multidisciplinary
Nikita Shah, Emilie Froment, Kate Seymour
Summary: This article discusses the formation and removal of a lead-rich salt crust on an eighteenth century Dutch oil painting. The crust was successfully removed using the chelating agent EDTA, resulting in a significant improvement in the painting's appearance.
Article
Biochemical Research Methods
Lianghui Wang, Kunning Lin, Huige Guo, Yuanbiao Zhang
Summary: A simple resorcinol method using a microplate reader was established for nitrate determination in seawater. The method showed good correlation and high application potential for field determination.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Shiva Ashoori, Maryam Naderpour, Mohammad M. Ghezelayagh, Reza Malekabadi Zadeh, Farshid Raissi
Summary: Single-electron devices have the capability to detect changes in the electric field caused by the presence of one single electron, making them potential tools for identifying microorganisms in liquids. However, their practical use is hindered by their small size, complex fabrication techniques, and cryogenic operational temperature. In this study, a room temperature single-electron structure is introduced, demonstrating its ability to distinguish liquids based on their dipole moments.