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Start-up of oxygen-limited autotrophic partial nitrification-anammox process for treatment of nitrite-free wastewater in a single-stage hybrid bioreactor.

Author(s): Hosseinpour B, Saborimanesh N, Yerushalmi L, Walsh D, Mulligan CN

Environ Technol. 2019 Aug 04;:1-9 Authors: Hosseinpour B, Saborimanesh N, Yerushalmi L, Walsh D, Mulligan CN

Article GUID: 31378146
Pilot-scale application of a single-stage hybrid airlift BioCAST bioreactor for treatment of ammonium from nitrite-limited wastewater by a partial nitrification/anammox process.

Author(s): Saborimanesh N, Walsh D, Yerushalmi L, Arriagada EC, Mulligan CN

Environ Sci Pollut Res Int. 2019 Jul 02;: Authors: Saborimanesh N, Walsh D, Yerushalmi L, Arriagada EC, Mulligan CN

Article GUID: 31267396
Photocatalytic degradation of sulfamethoxazole by hierarchical magnetic ZnO@g-C3N4: RSM optimization, kinetic study, reaction pathway and toxicity evaluation.

Author(s): Mirzaei A, Yerushalmi L, Chen Z, Haghighat F

J Hazard Mater. 2018 Oct 05;359:516-526 Authors: Mirzaei A, Yerushalmi L, Chen Z, Haghighat F

Article GUID: 30086522
Sonocatalytic removal of ampicillin by Zn(OH)F: Effect of operating parameters, toxicological evaluation and by-products identification.

Author(s): Mirzaei A, Haghighat F, Chen Z, Yerushalmi L

J Hazard Mater. 2019 Apr 22;375:86-95 Authors: Mirzaei A, Haghighat F, Chen Z, Yerushalmi L

Article GUID: 31054533
Title:Sonocatalytic removal of ampicillin by Zn(OH)F: Effect of operating parameters, toxicological evaluation and by-products identification.
Authors:Mirzaei A,  Haghighat F,  Chen Z,  Yerushalmi L
Link:https://www.ncbi.nlm.nih.gov/pubmed/31054533?dopt=Abstract
Category:J Hazard Mater
PMID:31054533
Dept Affiliation: ENCS
1 Department of Building, Civil and Environmental Engineering, Faculty of Engineering and Computer Sciences, Concordia University, Montreal, Quebec, Canada.
2 Department of Building, Civil and Environmental Engineering, Faculty of Engineering and Computer Sciences, Concordia University, Montreal, Quebec, Canada. Electronic address: zhichen@bcee.concordia.ca.

Description:

Sonocatalytic removal of ampicillin by Zn(OH)F: Effect of operating parameters, toxicological evaluation and by-products identification.

J Hazard Mater. 2019 Apr 22;375:86-95

Authors: Mirzaei A, Haghighat F, Chen Z, Yerushalmi L

Abstract

Zinc hydroxyfluoride (Zn(OH)F) sonocatalyst was prepared by using solvothermal method and was characterized by using various techniques. The sonocatalytic degradation of ampicillin (AMP) in water by sonolysis, bare ZnO and Zn(OH)F was investigated in terms of AMP removal, mineralization, detoxification of solution, and remaining by-products at the end of process. Results revealed that the sonocatalytic performance of Zn(OH)F was significantly greater than that of bare ZnO. Under the optimum conditions, the removal percentage of AMP by Zn(OH)F was ~97% after 90?min reaction, while 51% and 36% COD and TOC removal were achieved after 120?min reaction, respectively. The study of Zn(OH)F stability revealed that the degradation efficiency of AMP was reduced by only 5% even after being reused for four experiments. The toxicity of initial and treated solutions was assessed by using agar-well diffusion method and ToxTrak™ toxicity assay, and the results indicated a substantial reduction in the toxicity of solution after the treatment. The formation of some by-products during the sonolysis and sonocatalysis was evaluated by LC-HR-MS/MS method. LC-HR-MS/MS results showed that the concentration of most by-products, which were produced after 90?min treatment by US/Zn(OH)F process, was considerably lower than those obtained during sonolysis and US/ZnO processes.

PMID: 31054533 [PubMed - as supplied by publisher]