FERRIC SULFATE BY HUMIDITY BUFFER TECHNIQUE AND RAMAN SPECTROSCOPY AT 0.1 MPa. W. G. Kong, Alian Wang and I-Ming Chou Dept. Earth and Planetary Sciences and McDonnell Center for Space Sciences, Washington University, St. Louis, MO 63130, USA ([email protected]), 2 School of Space Science and Physics, Shandong University, Weihai, 264200, China. 3 954 National Center, U.S. Geological Survey,...

Introduction: The most important environmental problem of automotive industries is the produced wastewater due to its various processes. The flocculation and coagulation along with chemical sequestration are among important processes for removing contaminants from wastewaters. The aim of this study is to investigate the efficiency of coagulation and flocculation process along with chemical sequ...

The aim of the present research is studying the effect of potassium permanganate addition on the pre-oxidation and coagulation of the surface water. River Nile and El Rayah El Tawfeky of Benha city, Egypt were the surface water supply used in this research. The results showed that El Rayah El Tawfeky raw water had higher turbidity concentration and humic acids absorbance (8.5 NTU and 0.024, res...

Introduction: Almost all flow models for martian gullies to date have assumed liquids that exhibit viscosities on the order of 1 cP (10 Pa.s) such as pure water [1,2] and liquid carbon dioxide [3]. Alternatively, salt solutions have been suggested based on thermodynamic and kinetic arguments as a way to stabilize liquid water in present day martian conditions [4,5]. We have recently proposed th...

INTRODUCTION Formocresol has been a popular pulpotomy medicament for many years. It is considered the "gold standard" in pediatric dentistry. However, concerns have been raised over its use in children. It has been reported that formocresol has toxic and mutagenic effects in cell culture, dental crypts, and precancerous epithelial cells. Therefore, additional biocompatible treatment alternative...

The presence of iron, used both as a nutrient and as an electron acceptor, was demonstrated to give an advantage to Escherichia coli bacteria in drinking water. Slight additions of ferrous sulfate to water with initial low iron concentrations led to a significant increase in the number of E. coli bacteria. The presence of ferric oxide in water under anaerobic conditions increased bacterial cult...

PURPOSE This investigation collected clinical and radiographic data from a retrospective chart review of patients receiving ferric sulfate pulpotomies with a sub-base of zinc oxide eugenol in a clinical practice over a five-year period. METHODS AND MATERIALS Clinical and radiographic data were available for 242 primary molars in 171 children with follow-up times ranging from 4-57 mos (mean = ...

Abstract Acid sulfate soils release metal laden, acidic waters that affect the environment, buildings, and human health. In this study, 16S rRNA gene amplicons, metagenomes, metatranscriptomes all demonstrated distinct microbial communities activities in unoxidized potential acid soil, overlying transition zone, uppermost oxidized actual soil. Assembled genomes mRNA transcripts also suggested a...

The purpose of this study was to compare the effect hemostatic agent containing aluminum chloride with ferric sulfate on shear bond strength resin-modified glass ionomer cement(RMGIC) dentin in primary tooth. Twenty extracted non-carious human teeth were collected study. specimens cut expose and polished. randomly seperated into 3 groups for treatment; group I: polyacrylic acid(PAA), RMGIC; II:...