نتایج جستجو برای: methylene blue removal
تعداد نتایج: 217723 فیلتر نتایج به سال:
Two vegetable wastes, cork bark and grape stalks, were investigated for the removal of methylene blue from aqueous solution. The effects of contact time, dye concentration, pH, and temperature on sorption were studied relative to adsorption on a commercially-activated carbon. The highest adsorption yield was obtained within the pH range 5 to 10 for grape stalks and 7 to 10 for cork bark. The so...
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...
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...
Background and purpose: Industries are one of the main sources of producing wastewater accounting for 20% of water pollution. Treatment of dye wastewaters is one of the major challenges in textile industry. The aim of this study was to investigate the performance of advanced oxidation processes, Fenton-Peracetic acid and Photo-Fenton-Peracetic acid for removal of methylene blue (MB) dye from ...
a 59 year old man is presented with adenocarcinoma of the stomach. in order to evaluate for the presence of the non-lifting sign, methylene blue was injected 2 mm from the perimeter of the tumor. since the tumor lifted, snare removal of the tumor was done, safely. partial gastrectomy was performed 2 weeks after endoscopic removal of the tumor which revealed no residual tumor or lymph node metas...
In the present study the use of cheap and ecofriendly biosorbents have been studied as an alternative substitution for commercial activated carbon for the removal of methylene blue from waste water. Batch adsorption study was carried out using inflorescence of Celosia argentea L, stem of Cicer arietinum and cob of Zea mays L as a raw agro waste material. This study investigates the potential us...
A novel polyaniline/Bi(2)SnTiO(7 )composite polymer was synthesized by chemical oxidation in-situ polymerization method and sol-gel method for the first time. The structural properties of novel polyaniline/Bi(2)SnTiO(7) have been characterized by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy and X-ray spectrometry. The lattice parameter of Bi(2)SnTiO(7) was f...
A 59 year old man is presented with adenocarcinoma of the stomach. In order to evaluate for the presence of the non-lifting sign, methylene blue was injected 2 mm from the perimeter of the tumor. Since the tumor lifted, snare removal of the tumor was done, safely. Partial gastrectomy was performed 2 weeks after endoscopic removal of the tumor which revealed no residual tumor or lymph node ...
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