Microbial cells immobilized on natural biomatrix as a new potential ecofriendly biosorbent for the biotreatment of reactive dye contamination

Celik S., Duman N., Sayın F., Tunali Akar S., Akar T.

JOURNAL OF WATER PROCESS ENGINEERING, cilt.39, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 39
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.jwpe.2020.101731
  • Dergi Adı: JOURNAL OF WATER PROCESS ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, INSPEC
  • Anahtar Kelimeler: Biosorption, Breakthrough, Immobilization, Platanus orientalis, Reactive Red 198, Reactive Yellow 2, FIXED-BED BIOSORPTION, PLATANUS-ORIENTALIS, AQUEOUS-SOLUTIONS, RED 198, ADSORPTION-KINETICS, METHYLENE-BLUE, MASS-TRANSFER, REMOVAL, EQUILIBRIUM, BATCH
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Dye pollution in the aquatic environment is one of the main environmental and public health issue nowadays. Biosorptive removal of such dyes by biocomposite materials have recently emerged a good potential. For this purpose a novel microbial cell-immobilized Platanus orientalis leaf tissue (NSPOL) was prepared through a passive immobilization, in this study. Its bioremoval potential was investigated for Reactive Red 198 (RR198) and Reactive Yellow 2 (RY2) dyes at different conditions, including pH, biomaterial dosage, contact time and flow rate. Biosorption of RR198 and RY2 by NSPOL was found to be a fast process. Biosorption data were well predicted with the pseudo-second-order kinetic model for both dyes. Decolorization patterns fitted well with Langmuir isotherm model. Maximum monolayer biosorption capacities were recorded as 51.12 and 37.59 mg g(-1) for RY2 and RR198, respectively. IR and SEM analysis revealed the biosorption of dyes onto biocomposite. Regeneration experiments showed that the biosorption performance of NSPOL was consistent towards RR198 and RY2 removal upto 5 recycles. After 5 biosorption-desorption cycles, the regeneration efficiency of NSPOL was still higher than 98 % for RY2 dye. Overall, batch and column studies indicated that suggested biocomposite may be a good and economic alternative for the removal of reactive azo dye contamination from aquatic media. Possible mechanism for biosorptive dye removal may be H-bonding, pi-pi and electrostatic interactions.