Tags

Type your tag names separated by a space and hit enter

Treatment of hospital laundry wastewater by UV/H2O2 process.
Environ Sci Pollut Res Int. 2017 Mar; 24(7):6278-6287.ES

Abstract

Hospitals consume a large volume of water to carry out their activities and, hence, generate a large volume of effluent that is commonly discharged into the local sewage system without any treatment. Among the various sectors of healthcare facilities, the laundry is responsible for the majority of water consumption and generates a highly complex effluent. Although several advanced oxidation processes (AOPs) are currently under investigation on the degradation of a variety of contaminants, few of them are based on real wastewater samples. In this paper, the UV/H2O2 AOP was evaluated on the treatment of a hospital laundry wastewater, after the application of a physicochemical pretreatment composed of coagulation-flocculation and anthracite filtration. For the UV/H2O2 process, a photoreactor equipped with a low-pressure UV-C lamp was used and the effects of initial pH and [H2O2]/chemical oxygen demand (COD) ratio on COD removal were investigated through a randomized factorial block design that considered the batches of effluent as blocks. The results indicated that the initial pH had no significant effect on the COD removal, and the process was favored by the increase in [H2O2]/COD ratio. Color and turbidity were satisfactorily reduced after the application of the physicochemical pretreatment, and COD was completely removed by the UV/H2O2 process under suitable conditions. The results of this study show that the UV/H2O2 AOP is a promising candidate for hospital laundry wastewater treatment and should be explored to enable wastewater reuse in the washing process.

Authors+Show Affiliations

Department of Chemical Engineering, State University of Maringá, Av. Colombo, 5790 - Bloco D90, CEP 87020-900, Maringá, PR, Brazil. jaquelinepz@hotmail.com.Department of Chemical Engineering, State University of Maringá, Av. Colombo, 5790 - Bloco D90, CEP 87020-900, Maringá, PR, Brazil.Department of Statistics, State University of Maringá, Av. Colombo, 5790 - Bloco D90, CEP 87020-900, Maringá, PR, Brazil.Department of Chemical Engineering, State University of Maringá, Av. Colombo, 5790 - Bloco D90, CEP 87020-900, Maringá, PR, Brazil.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27234839

Citation

Zotesso, Jaqueline Pirão, et al. "Treatment of Hospital Laundry Wastewater By UV/H2O2 Process." Environmental Science and Pollution Research International, vol. 24, no. 7, 2017, pp. 6278-6287.
Zotesso JP, Cossich ES, Janeiro V, et al. Treatment of hospital laundry wastewater by UV/H2O2 process. Environ Sci Pollut Res Int. 2017;24(7):6278-6287.
Zotesso, J. P., Cossich, E. S., Janeiro, V., & Tavares, C. R. G. (2017). Treatment of hospital laundry wastewater by UV/H2O2 process. Environmental Science and Pollution Research International, 24(7), 6278-6287. https://doi.org/10.1007/s11356-016-6860-5
Zotesso JP, et al. Treatment of Hospital Laundry Wastewater By UV/H2O2 Process. Environ Sci Pollut Res Int. 2017;24(7):6278-6287. PubMed PMID: 27234839.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Treatment of hospital laundry wastewater by UV/H2O2 process. AU - Zotesso,Jaqueline Pirão, AU - Cossich,Eneida Sala, AU - Janeiro,Vanderly, AU - Tavares,Célia Regina Granhen, Y1 - 2016/05/28/ PY - 2015/12/29/received PY - 2016/05/09/accepted PY - 2016/5/29/pubmed PY - 2017/5/23/medline PY - 2016/5/29/entrez KW - Advanced oxidation processes KW - Coagulation-flocculation KW - Hospital effluents KW - Hospital laundry wastewater KW - Hydrogen peroxide KW - Hydroxyl radicals KW - UV/H2O2 process KW - Ultraviolet irradiation SP - 6278 EP - 6287 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 24 IS - 7 N2 - Hospitals consume a large volume of water to carry out their activities and, hence, generate a large volume of effluent that is commonly discharged into the local sewage system without any treatment. Among the various sectors of healthcare facilities, the laundry is responsible for the majority of water consumption and generates a highly complex effluent. Although several advanced oxidation processes (AOPs) are currently under investigation on the degradation of a variety of contaminants, few of them are based on real wastewater samples. In this paper, the UV/H2O2 AOP was evaluated on the treatment of a hospital laundry wastewater, after the application of a physicochemical pretreatment composed of coagulation-flocculation and anthracite filtration. For the UV/H2O2 process, a photoreactor equipped with a low-pressure UV-C lamp was used and the effects of initial pH and [H2O2]/chemical oxygen demand (COD) ratio on COD removal were investigated through a randomized factorial block design that considered the batches of effluent as blocks. The results indicated that the initial pH had no significant effect on the COD removal, and the process was favored by the increase in [H2O2]/COD ratio. Color and turbidity were satisfactorily reduced after the application of the physicochemical pretreatment, and COD was completely removed by the UV/H2O2 process under suitable conditions. The results of this study show that the UV/H2O2 AOP is a promising candidate for hospital laundry wastewater treatment and should be explored to enable wastewater reuse in the washing process. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/27234839/Treatment_of_hospital_laundry_wastewater_by_UV/H2O2_process_ L2 - https://dx.doi.org/10.1007/s11356-016-6860-5 DB - PRIME DP - Unbound Medicine ER -