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Insights into real cotton-textile dyeing wastewater treatment using solar advanced oxidation processes.
Environ Sci Pollut Res Int. 2014 Jan; 21(2):932-45.ES

Abstract

Different advanced oxidation processes (AOPs) were applied to the treatment of a real cotton-textile dyeing wastewater as a pre-oxidation step to enhance the biodegradability of the recalcitrant compounds, which can be further oxidized using a biological process. Tests were conducted on a lab-scale prototype using artificial solar radiation and at pilot scale with compound parabolic collectors using natural solar radiation. The cotton-textile dyeing wastewater presents a lilac color, with a maximum absorbance peak at 641 nm, alkaline pH (pH = 8.2), moderate organic content (DOC = 152 mg C L(-1), COD = 684 mg O2 L(-1)) and low-moderate biodegradability (40 % after 28 days in Zahn-Wellens test). All the tested processes contributed to an effective decolorization and mineralization, but the most efficient process was the solar-photo-Fenton with an optimum catalyst concentration of 60 mg Fe(2+) L(-1), leading to 98.5% decolorization and 85.5% mineralization after less than 0.1 and 5.8 kJUV L(-1), respectively. In order to achieve a final wastewater with a COD below 250 mg O2 L(-1) (discharge limit into water bodies imposed by the Portuguese Legislation-Portaria no. 423/97 of 25 June 1997), considering the combination of a solar-photo-Fenton reaction with a biological process, the phototreatment energy required is 0.5 kJUV L(-1), consuming 7.5 mM hydrogen peroxide, resulting in 58.4% of mineralization [Formula: see text].

Authors+Show Affiliations

LSRE-Laboratory of Separation and Reaction Engineering-Associate Laboratory LSRE/LCM, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23832802

Citation

Soares, Petrick A., et al. "Insights Into Real Cotton-textile Dyeing Wastewater Treatment Using Solar Advanced Oxidation Processes." Environmental Science and Pollution Research International, vol. 21, no. 2, 2014, pp. 932-45.
Soares PA, Silva TF, Manenti DR, et al. Insights into real cotton-textile dyeing wastewater treatment using solar advanced oxidation processes. Environ Sci Pollut Res Int. 2014;21(2):932-45.
Soares, P. A., Silva, T. F., Manenti, D. R., Souza, S. M., Boaventura, R. A., & Vilar, V. J. (2014). Insights into real cotton-textile dyeing wastewater treatment using solar advanced oxidation processes. Environmental Science and Pollution Research International, 21(2), 932-45. https://doi.org/10.1007/s11356-013-1934-0
Soares PA, et al. Insights Into Real Cotton-textile Dyeing Wastewater Treatment Using Solar Advanced Oxidation Processes. Environ Sci Pollut Res Int. 2014;21(2):932-45. PubMed PMID: 23832802.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Insights into real cotton-textile dyeing wastewater treatment using solar advanced oxidation processes. AU - Soares,Petrick A, AU - Silva,Tânia F C V, AU - Manenti,Diego R, AU - Souza,Selene M A G U, AU - Boaventura,Rui A R, AU - Vilar,Vítor J P, Y1 - 2013/07/07/ PY - 2013/04/15/received PY - 2013/06/11/accepted PY - 2013/7/9/entrez PY - 2013/7/9/pubmed PY - 2014/5/9/medline SP - 932 EP - 45 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 21 IS - 2 N2 - Different advanced oxidation processes (AOPs) were applied to the treatment of a real cotton-textile dyeing wastewater as a pre-oxidation step to enhance the biodegradability of the recalcitrant compounds, which can be further oxidized using a biological process. Tests were conducted on a lab-scale prototype using artificial solar radiation and at pilot scale with compound parabolic collectors using natural solar radiation. The cotton-textile dyeing wastewater presents a lilac color, with a maximum absorbance peak at 641 nm, alkaline pH (pH = 8.2), moderate organic content (DOC = 152 mg C L(-1), COD = 684 mg O2 L(-1)) and low-moderate biodegradability (40 % after 28 days in Zahn-Wellens test). All the tested processes contributed to an effective decolorization and mineralization, but the most efficient process was the solar-photo-Fenton with an optimum catalyst concentration of 60 mg Fe(2+) L(-1), leading to 98.5% decolorization and 85.5% mineralization after less than 0.1 and 5.8 kJUV L(-1), respectively. In order to achieve a final wastewater with a COD below 250 mg O2 L(-1) (discharge limit into water bodies imposed by the Portuguese Legislation-Portaria no. 423/97 of 25 June 1997), considering the combination of a solar-photo-Fenton reaction with a biological process, the phototreatment energy required is 0.5 kJUV L(-1), consuming 7.5 mM hydrogen peroxide, resulting in 58.4% of mineralization [Formula: see text]. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/23832802/Insights_into_real_cotton_textile_dyeing_wastewater_treatment_using_solar_advanced_oxidation_processes_ L2 - https://dx.doi.org/10.1007/s11356-013-1934-0 DB - PRIME DP - Unbound Medicine ER -