نتایج جستجو برای: decolourization

تعداد نتایج: 244  

Journal: :Ultrasonics sonochemistry 2007
Carlos Basto Carla Joana Silva Georg Gübitz Artur Cavaco-Paulo

We report in this study that the sonication of laccase from Trametes villosa and bovine serum albumin promotes the formation of protein aggregates with high molecular weight. The formation of aggregates leads to the deactivation of the enzyme, fact that was confirmed by the analysis of the enzyme stability (half-life time) upon ultrasound treatment. This inactivation was mainly caused by the ra...

2012
Wioletta Przystaś Ewa Zabłocka-Godlewska Elżbieta Grabińska-Sota

Increasing environmental pollution is connected with broad applications of dyes and imperfection of dyeing technology. Decolourization of triphenylmethane brilliant green and disazo Evans blue by bacterial and fungal strains and toxicity (phyto- and zootoxicity) of degradation by-products were investigated. Influence of incubation method on dyes removal was evaluated (static, semi-static, shake...

2016
N. Uma Maheswari S. Sivagami

Rapid industrialization has necessitated the manufacture and use of different chemicals in day to day life. Water is life but now-a-days due to advancement in industrialization, it a spoiling a lot. In the present study, an attempt was made to examine the isolation and identification of Bacillus species from marine soil, Nagapattinum seashore, Tamil Nadu, India. Dyes are collected from in aroun...

2016
Rajvir Kaur Harpreet Kaur

The present work has been carried out to study the mechanism of electrochemical degradation of Congo red dye. Electrolysis has been carried out in a single-chamber electrochemical cell having graphite anode and platinum cathode in the presence of KCl as supporting electrolyte under amperostatic conditions. The potential across the electrodes has been adjusted so that a constant 30 mA current pa...

2004
Robert Maas Sanjeev Chaudhari

The microbial decolourization of Reactive Red 2 (RR2) dye has been studied under anaerobic conditions. Three semicontinuous bioreactors were operated with dye concentrations—R1 (control: 0 mg RR2 l−1), R2 (100 mg RR2 l−1) and R3 (200 mg RR2 l−1). The parameters monitored were, oxidation–reduction potential (ORP), methane production, colour and chemical oxygen demand (COD) removal during the fee...

Journal: :Fibres and Textiles in Eastern Europe 2016

2005
O. S. AZEEZ

This research work is aimed at decolourizing gum Arabic using activated charcoal so as to improve the quality of gum Arabic before the use of additives on the gum Arabic. The experiment was conducted on laboratory scale, the filter fixed bed method was used and the adsorbent (activated charcoal) is a granular of 500μm mesh size. The pH, viscosity and transmittance of each solution were measured...

Journal: :International journal of recent technology and engineering 2021

The color of dye aqueous solution which cannot be removed by coagulation was selected to decolourize it through adsorption process using novel adsorbents namely Flocs Ferric Sulphate, Aluminium sulphate and Manganese sulphate. In order know efficacy adsorbents, batch sorption studies equilibrium were conducted. Good removal achieved with at pH::4 Sulphate pH::10, will applicable reduce the indu...

Journal: :Research Journal of Environmental Sciences 2008

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2016
Jing-Jie Zhang Yu-Hui Wu Jin-Ya Mei Guang-Ping Zheng Ting-Ting Yan Xiu-Cheng Zheng Pu Liu Xin-Xin Guan

A series of composites consisting of anatase TiO2 nanocrystals and three-dimensional (3D) graphene aerogel (TiO2-GA) were self-assembled directly from tetrabutyl titanate and graphene oxides via a one-pot hydrothermal process. TiO2 was found to uniformly distribute inside the 3D network of GA in the resulting composites with large surface areas (SBET > 125 m(2) g(-1)) and high pore volumes (Vp ...

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