Silica build-up is monitored inside the boiler drum. The silica concentration is distributed between the water and vapour phases in a boiler.As the temperature and pressure are increased, more silica becomes present in the steam. ... This is the removal of contaminated water from the boiler. ...
Polymeric (colloidal) silica formed from reactive silica in water deposits on equipments and membranes used in the desalination and treatment of water and wastewater. Fouling of the equipment used has caused problems leading to numerous investigations into silica removal processes and fouling prevention ...
Studies of mechanism of silica polymerization reactions in the combination of silica sol and potassium sodium waterglass via isothermal heat conduction mic... Isothermal heat conduction microcalorimetry was adopted as a novel characterization method to investigate the polymerization processes of silica when ...
groundwater exchange, and direct atmospheric N deposition. Inorganic fertilizer and animal manure are the dominant anthropogenic sources of N in many large US river basins (Puckett1995; Howarth et al.2011b; Hong et al.2011). Although Nr removal from individual fields can vary widely...
prepared mesoporous silica NPs doped with manganese ferrite and cerium NPs (MFC-MSNs) have a synergistic effect on O2 generation and ROS removal, resulting in the effective polarization of M1 to M2 macrophages in vitro and in vivo. MFC-MSNs were intravenously administered to a rat rheumatoid ...
Abstract The removal of reactive red M-2BE dye textile from aqueous solution was performed using multi-walled carbon nanotubes (MWCN) and powdered activated carbon (PAC). Kinetic adsorption modeling has been performed using machine learning (ML) algorithms of artificial neural networks, adaptive-neuro...
Similarly, formation of 2,5-hexanediol from 2- hexanol was catalysed by a P450 isozyme different from cytochrome P450-phenobarbital-B and present in liver but not in lung microsomes. In silica-treated rats, pulmonary total activity of cytochromes P450 (all isoenzymes) was increased, and so was...
The purpose of this study is to investigate the adsorption behavior of the Reactive Yellow 14 (RY14) azo dye from an aqueous solution onto silica gel (SG),... SE Aggadi,M Ennouhi,Y Kerroum,... - 《Aqua — Water Infrastructure Ecosystems & Society》 被引量: 0发表: 2023年 Combined ab...
Hence, silaffins are believed to act as biocatalysts for the precipitation of silica from seawater or fresh water environments. By varying the relative mixtures of silaffins and polyamines, along with solution pH, Kroger, et al. have been able to control the precipitation of silica from ...
The effects of suspended-sediment concentration on the biological uptake of silica and the chemical behavior of particle-reactive elements are examined for the continental shelf waters near the mouth of the Amazon River. Dissolved silica and suspended-sediment concentrations measured during periods of hig...