Toxicity effects of nickel electroplating effluents treated by photoelectrooxidation in the industries of the Sinos River Basin

被引：6

作者：

Benvenuti, T. ^{[1
]}

Rodrigues, M. A. S. ^{[2
]}

Arenzon, A. ^{[3
]}

Bernardes, A. M. ^{[1
]}

Zoppas-Ferreira, J. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Programa Posgrad Engn Minas Met Mat PPGEM, Lab Corrosao Protecao & Reciclagem Mat, BR-91501970 Porto Alegre, RS, Brazil

[2] Univ Feevale, Programa Posgrad Qualidade Ambiental, BR-93352000 Novo Hamburgo, RS, Brazil

[3] Univ Fed Rio Grande do Sul, Ctr Ecol, Lab Ecotoxicol, BR-91501970 Porto Alegre, RS, Brazil

来源：

BRAZILIAN JOURNAL OF BIOLOGY | 2015年 / 75卷 / 02期

关键词：

nickel plating effluent; organic additives; photoelectrooxidation; toxicity; ELECTROCHEMICAL RECOVERY; WASTE-WATER; OXIDATION; DEGRADATION; WASTEWATERS; METALS;

D O I：

10.1590/1519-6984.1113

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The Sinos river Basin is an industrial region with many tanneries and electroplating plants in southern Brazil. The wastewater generated by electroplating contains high loads of salts and metals that have to be treated before discharge. After conventional treatment, this study applied an advanced oxidative process to degrade organic additives in the electroplating bright nickel baths effluent. Synthetic rinsing water was submitted to physical-chemical coagulation for nickel removal. The sample was submitted to ecotoxicity tests, and the effluent was treated by photoelectrooxidation (PEO). The effects of current density and treatment time were evaluated. The concentration of total organic carbon (TOC) was 38% lower. The toxicity tests of the effluent treated using PEO revealed that the organic additives were partially degraded and the concentration that is toxic for test organisms was reduced.

引用

页码：17 / 24

页数：8

共 7 条

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