سال انتشار: ۱۳۸۸

محل انتشار: اولین کنفرانس بین المللی تصفیه فاضلاب و بازیافت آب، فناوری ها و یافته های نو

تعداد صفحات: ۵

نویسنده(ها):

S.A Raeisosadat – Department of Biotechnology, University of Kerala, Kariavattom Campus, Trivandrum 695 -581, Trivandrum, Kerala, India
S Sudhakar – Department of Biotechnology, University of Kerala, Kariavattom Campus, Trivandrum 695 -581, Trivandrum, Kerala, India

چکیده:

ART is a technology with tremendous scope in which a single reactor can integrate biological and chemical oxidation. A huge column packed with activated carbon that is immobilized with chemo autotrophs makes up the reactor. Oxidation of organics in wastewater is done by oxygen supplied in the form of compressed air from the bottom of the reactor. The activated carbon maintains its activity throughout the operation while the counter-current movement of the liquid and air streams enables the dissolved organics to get oxidised and desorbs the converted products .The domestic wastewater treated through ART system has reduced BOD by 94%, COD by 90% and sulphides by 100%. ART helps in the removal of organics estimated as BOD and COD from wastewater generated in leather garment manufacturing, textile-yarn-dyeing , sago, chemical, and pharmaceutical industries. The plant cost, operating cost and maintenance cost are comparatively low. Also 90%less sludge production is reported. The presence of organic and inorganic chemicals, both pathogenic and non-pathogenic organisms, makes domestic wastewater prone to complications in treatment. Classical biological treatment systems do not remove dissolved organics and microorganisms satisfactorily. This new system is efficient enough to recover the water for reuse purpose.