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Highly Efficient Removal of Organic Pollutants with HCO-Enhanced Ru(III)/NaClO Process.
Int J Mol Sci
January 2025
Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China.
The design of efficient advanced oxidation processes (AOPs) in the presence of bicarbonate has long attracted considerable attention in the field of environmental catalysis. In this study, sodium bicarbonate (NaHCO) as one of the most abundant substances in actual water, was introduced to a NaClO/Ru(III) system to enhance the removal of acid orange 7(AO7). NaHCO could significantly improve the removal efficiency of the Ru(III)/NaClO process in HCO at a pH range of 6.
View Article and Find Full Text PDFEffect of antacid gastric syrups on surface properties of dental restorative materials: an in vitro analysis of roughness and microhardness.
BMC Oral Health
January 2025
Faculty of Dentistry, Department of Restorative Dentistry, Inonu University, Malatya, Turkey.
Objectives: The aim of this in-vitro study was to evaluate the effects of antacid gastric syrups on the surface roughness and microhardness of restorative dental materials.
Materials And Methods: Three different composite resins, nanohybrid, microhybrid and giomer, and four antacid gastric syrups were used in the study. A total of 150 samples were obtained by preparing 50 (10 mm x 2 mm) disk-shaped samples of each composite type.
Biocementation beyond the Petri dish, scaling up to 900 L batches and a meter-scale column.
Sci Rep
January 2025
Environmental Biotechnology, Institute of Microbiology, Department of Environment, Construction and Design, University of Applied Sciences and Arts of Southern Switzerland (SUPSI), 3 Medusoil SA, EPFL Innovation Park Building A, Manno, Switzerland.
Microbial-induced calcite precipitation (MICP), which leverages ureolytic microorganisms, has received significant attention during the past decade as a promising method for sustainable building and geoenvironmental applications. However, transitioning from lab-scale experimentation to volumes suitable for practical use poses challenges. This study addresses these obstacles by screening and analyzing over 50 strains sourced from (i) a natural environment in the canton of Ticino in Switzerland; (ii) microorganism banks; and (iii) an industry-scale bioreactor.
View Article and Find Full Text PDFCotreatment strategy for hazardous arsenic-calcium residue and siderite tailings via arsenic fixation as scorodite.
J Environ Sci (China)
July 2025
Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
Siderite tailings is a potentially cost-free iron (Fe) source for arsenic (As) fixation in hazardous arsenic-calcium residues (ACR) as stable scorodite. In this study, a pure siderite reagent was employed to investigate the mechanism and optimal conditions for As fixation in ACR via scorodite formation, while the waste siderite tailings were used to further demonstrate the cotreatment method. The cotreatment method starts with an introduction of sulfuric acid to the ACR for As extraction and gypsum precipitation, and is followed by the addition of HO to oxidize As(III) in the extraction solutions and finalized by adding siderite with continuous air injection for scorodite formation.
View Article and Find Full Text PDF[Preparation of multi-layer compound microcapsules and their application in self-healing of concrete cracks].
Sheng Wu Gong Cheng Xue Bao
January 2025
College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
Concrete is widely used in building construction, civil engineering, roads, bridges, etc., but concrete cracking remains a major issue in the engineering industry. To develop an effective and feasible concrete repair technology, this study combined microbial and microencapsulation technologies to prepare a multi-layer compound microcapsule using the piercing method.
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