Abstract:
:In the present study, a hybrid treatment system (biological and ozonation) was developed and used in the decolorization of Congo red (CR) dye. The biological treatment was performed in packed bed bioreactor (PBBR) containing Arjuna (Terminalia Arjuna) seeds biochar immobilized with Providencia stuartii, whereas ozonation was carried out in an ozone reactor. The process variables such as temperature, process time, and inoculum size were optimized and found to be 30 °C, 2 48 h, and 3 × 105 CFU/mL, respectively with 92.0 ± 5.0% of dye decolorization. Furthermore, biologically treated effluent was subject to ozone treatment for the decolorization of the remaining CR dye. The hybrid approach reveals almost complete decolorization of Congo red (CR) dye. The kinetic study of microbial growth was examined by Monod model. In addition, the cost analysis estimation for the removal of CR dye was done, and removal per liter was found to be economic.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Goswami M,Chaturvedi P,Kumar Sonwani R,Dutta Gupta A,Rani Singhania R,Shekher Giri B,Nath Rai B,Singh H,Yadav S,Sharan Singh Rdoi
10.1016/j.biortech.2020.123203subject
Has Abstractpub_date
2020-07-01 00:00:00pages
123203eissn
0960-8524issn
1873-2976pii
S0960-8524(20)30474-0journal_volume
307pub_type
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