Abstract: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 feeding cycles. The oxidation-reduction potential values for the first few days were above −150 mV, which later on … Show more
“…Degradation of dyes is difficult due to their complex structure and synthetic nature (Swamy and Ramsay, 1999;Maas and Chaudhari, 2005). In addition, most of the dyes are resistant to light, water and oxidizing agents and so treatment by conventional processes is impossible (Shaul et al, 1991).…”
“…Degradation of dyes is difficult due to their complex structure and synthetic nature (Swamy and Ramsay, 1999;Maas and Chaudhari, 2005). In addition, most of the dyes are resistant to light, water and oxidizing agents and so treatment by conventional processes is impossible (Shaul et al, 1991).…”
“…The color from textile industries is mainly due to dyeing process. There are more than 10,000 dyes used in textile industry and 280,000 t of textile dyes are discharged every year [2]. Degradation of dyes especially azo dyes, which contribute to about 70% of all used dyes, is difficult due to their complex structure and synthetic nature.…”
“…There are more than 10,000 dyes used in textile industry and 280,000 t of textile dyes are discharged every year worldwide [2]. Degradation of dyes especially azo dyes, which contribute to about 70% of all used dyes, is difficult due to their complex structure and synthetic nature.…”
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