Ozone-Induced Biodegradability Enhancement and Color Reduction of a Complex Pharmaceutical Effluent

Autor: Suvidha Gupta, Sameena N. Malik, Satish K. Lokhande, T. Saratchandra, Sandeep N. Mudliar, Abhinav Sharma, Vishal Waindeskar
Rok vydání: 2015
Předmět:
Zdroj: Ozone: Science & Engineering. 37:538-545
ISSN: 1547-6545
0191-9512
DOI: 10.1080/01919512.2015.1064762
Popis: The treatment of a complex pharmaceutical effluent using a combination of ozonation and biological treatment is reported with the use of ozonation as a pre- and posttreatment. Pretreatment facilitated biodegradability index (BI = BOD/COD) enhancement of up to 0.44 along with COD and color reduction of up to 42% and 33%, respectively. Subsequent anaerobic biodegradation of effluent indicated negligible biogas generation; however, aerobic biodegradation of pretreated effluent resulted in COD reduction (73%) and color reduction (62%), which was also indicated by the biokinetic parameters. Further, ozonation as a posttreatment led to higher overall COD (87%) and color (93%) removal.
Databáze: OpenAIRE
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