PMID- 37451007
OWN - NLM
STAT- MEDLINE
DCOM- 20230808
LR  - 20230808
IS  - 1873-2828 (Electronic)
IS  - 1350-4177 (Print)
IS  - 1350-4177 (Linking)
VI  - 98
DP  - 2023 Aug
TI  - Acoustic cavitation for the process intensification of biological oxidation of 
      CETP effluent containing mainly pharmaceutical compounds: Understanding into 
      effect of parameters and toxicity analysis.
PG  - 106524
LID - S1350-4177(23)00236-5 [pii]
LID - 10.1016/j.ultsonch.2023.106524 [doi]
LID - 106524
AB  - The current work investigates the efficacy of acoustic cavitation (AC) based 
      pretreatment as a process intensification method for improving the conventional 
      biological oxidation (BO) treatment of the effluent from common effluent 
      treatment plant (CETP) mainly containing pharmaceutical compounds. The effluent 
      acclimatized with cow dung-based sludge was utilized for the aerobic oxidation 
      with an optimum condition of 1:3 ratio of sludge to effluent and 6 h as duration. 
      COD reduction of 19.58% was achieved with the conventional biological oxidation, 
      which was demonstrated to be improved by incorporating acoustic cavitation-based 
      pretreatment approaches under optimized conditions of 125 W and 70% duty cycle 
      for only AC as well as oxidant loadings as 1000 mg/L for H(2)O(2), 250 mg/L 
      Fe(II) with 1000 mg/L H(2)O(2) for Fenton, 1000 mg/L for KPS and 0.5 L/min for 
      the O(3) during the combination approaches. The improved COD reduction after the 
      use of pretreatment approaches followed by the BO of 6 h duration was 29.26%, 
      72.42%, 85.47%, 45.68% and 69.26% for the AC, AC + H(2)O(2), AC + Fenton, 
      AC + KPS and AC + O(3) based approaches respectively. The toxicity assay of the 
      effluent before and after every pretreatment approach using bacterial strains 
      ofStaphylococcus aureusandPseudomonas aeruginosaensured the biodegradability of 
      the treated effluent as no toxic intermediates could be seen. Overall, the 
      present work elucidated the effectiveness of acoustic cavitation-based 
      pretreatment approaches for the improvement of conventional BO of CETP effluent.
CI  - Copyright (c) 2023 The Author(s). Published by Elsevier B.V. All rights reserved.
FAU - Lakshmi, N J
AU  - Lakshmi NJ
AD  - Department of Chemical Engineering, Institute of Chemical Technology, Matunga, 
      Mumbai 400019, India.
FAU - Gogate, Parag R
AU  - Gogate PR
AD  - Department of Chemical Engineering, Institute of Chemical Technology, Matunga, 
      Mumbai 400019, India. Electronic address: pr.gogate@ictmumbai.edu.in.
FAU - Pandit, Aniruddha B
AU  - Pandit AB
AD  - Department of Chemical Engineering, Institute of Chemical Technology, Matunga, 
      Mumbai 400019, India.
LA  - eng
PT  - Journal Article
DEP - 20230710
PL  - Netherlands
TA  - Ultrason Sonochem
JT  - Ultrasonics sonochemistry
JID - 9433356
RN  - 0 (Sewage)
RN  - BBX060AN9V (Hydrogen Peroxide)
RN  - 0 (Pharmaceutical Preparations)
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - *Sewage/microbiology
MH  - Waste Disposal, Fluid/methods
MH  - Hydrogen Peroxide
MH  - Oxidation-Reduction
MH  - Acoustics
MH  - Pharmaceutical Preparations
MH  - *Water Pollutants, Chemical
PMC - PMC10368907
OTO - NOTNLM
OT  - Acclimatized sludge
OT  - Acoustic Cavitation
OT  - Biological oxidation
OT  - Common Effluent Treatment Plant
OT  - Process intensification
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2023/07/15 10:42
MHDA- 2023/08/08 06:42
PMCR- 2023/07/10
CRDT- 2023/07/14 18:02
PHST- 2023/04/16 00:00 [received]
PHST- 2023/06/20 00:00 [revised]
PHST- 2023/07/09 00:00 [accepted]
PHST- 2023/08/08 06:42 [medline]
PHST- 2023/07/15 10:42 [pubmed]
PHST- 2023/07/14 18:02 [entrez]
PHST- 2023/07/10 00:00 [pmc-release]
AID - S1350-4177(23)00236-5 [pii]
AID - 106524 [pii]
AID - 10.1016/j.ultsonch.2023.106524 [doi]
PST - ppublish
SO  - Ultrason Sonochem. 2023 Aug;98:106524. doi: 10.1016/j.ultsonch.2023.106524. Epub 
      2023 Jul 10.