نتایج جستجو برای: methylene blue dye
تعداد نتایج: 114071 فیلتر نتایج به سال:
OBJECTIVE To describe photosensitization after prenatal exposure to a toxic amount of methylene blue and to alert pediatricians that, in a review of the literature, photosensitization (which this dye is capable of) has not been reported as a complication of prenatal exposure. DESIGN AND PATIENTS A descriptive report of physical findings and significant laboratory tests in a very low birth wei...
The time of administration has varied from 24 hours to 5 weeks before delivery,2 and in most cases exchange transfusion or phototherapy, or both, was required to control the jaundice. In 2 cases respiratory distress was reported as well3 4 although it is difficult to determine whether or not this was related to the dye. In this case the L/S ratio at the time of amniocentesis was 2-4. Although m...
Introduction: Colored Wastewater due to various environmental problems should be treated before discharge to the environment. Colors have many variety and different methods used for color wastewater treatment, the most widely methods that used is the absorption process by the low-cost adsorbent. To determine the isotherms and kinetics adsorption Process, absorption of methylene blue cationic dy...
The use of biodegradation methods by microorganisms in the removal of industrial dyes are widely considered owing to their high efficiency and compatibility to the environment. Therefore, this study aims to evaluate the biodegradation of methylene blue (MB) from aqueous solution by bacteria isolated from contaminated soil. This study was performed in laboratory scale on bacteria isolated and pu...
Background and purpose: Dyes are one of the most contaminants in textile industrial wastewater that are often carcinogenic, mutagenic and non-degradable. Therefore, their removal from effluents is very essential to avoid environmental consequences. The purpose of this study was to gain a better insight into the adsorption process and using an economic technology for dye waste water treatment. F...
Background and Objective: Chemical dyes used in the textile wastewater besides having harmful effect on the environment, have carcinogenic and mutagenic effects. Methylene blue has harmful effect on living organisms in short period of exposure. The goal of this study was optimization of the catalytic ozonation process by pumice modified by magnesium nitrate in removal of methylene blue dye ba...
Herein, we report a case of sentinel lymph node mapping in a uterine cervix cancer patient, referring to the nuclear medicine department of our institute. Lymphoscintigraphy images showed inappropriate intra‐cervical injection of radiotracer. Blue dye technique was applied for sentinel lymph node mapping, using intra‐cervical injection of methylene blue. Two blue/cold sentinel lymph nodes, with...
Introduction: Azo groups of dyes used widely for coloring yarn. Methylene blue is one of this group's dyes therefore with benzene rings in its structure caused the toxicity and its persistence in the environment. So that the its deficiency of proper treatment can cause the irreparable damage to the environment. One of the ways to removal these dyes from natural sources are absorbed by the absor...
Introduction: Dyes are materials with a complex structure that enter the environment from textile processes such as dyeing and washing. The aim of this study was to investigate the efficiency of the absorption process using Zeolite @ ZnO in removing methylene blue dye from textile wastewater. Methods: The structure and morphology of nanoparticles were examined using XRF, FTIR and FESEM techniq...
In the present work, the influence of temperature on kinetics and equilibrium of methylene blue sorption from synthetic aqueous solutions, in single dye solutions, using almond peel as a sorbent material has been investigated in batch conditions. Temperature played an important part in sorption phenomenon: the methylene blue sorption increased as temperature increased. The pseudo second-order m...
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