Electro-removal of copper, chromium, and arsenic from chromated copper arsenate treated waste wood

被引：0

作者：

de Castro, Rodrigo Jose ^{[1
]}

Kehl, Gustavo Delmar ^{[1
]}

Candaten, Luana ^{[2
]}

dos Santos, Germana Davila ^{[3
]}

Bairros da Silva, Paulo Roberto ^{[1
]}

Trevisan, Romulo ^{[1
]}

Wastowski, Arci Dirceu ^{[1
]}

机构：

[1] Univ Fed Santa Maria, Santa Maria, RS, Brazil

[2] Univ Sao Paulo, Sao Paulo, SP, Brazil

[3] Univ Fed Parana, Curitiba, PR, Brazil

来源：

ENGENHARIA SANITARIA E AMBIENTAL | 2021年 / 26卷 / 02期

关键词：

environmental risk; solid waste; chemical species; dispersive energy x-ray fluorescence spectrometry; ELECTRODIALYTIC REMEDIATION; CCA; PRESERVATION; PERFORMANCE; TIMBER; XRF; CR; CU;

D O I：

10.1590/S1413-415220190319

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

Wood is a renewable material considered eco-friendly and used for various purposes. While wood treated with chromated copper arsenate (CCA) does not deteriorate, its final disposal may entail risks due to the concentration and toxicity of the components. The removal of CCA from wood can be achieved in different ways. This study focuses on the reduction of the concentrations of Cu, Cr, and As chemical species by the electro-removal technique, aiming to obtain biomass with low deleterious potential that would allow multiple uses or safe disposal in landfills. The analytical results showed reductions of 79.5, 87.4, and 81.3% in the mean concentrations of Cu, Cr, and As, respectively. It is worth mentioning the occurrence of the fungus Xylaria sp. after treatment 6 (60 min, 5 g, and 25 V), further suggesting that the method was effective. Samples of these fungi were identified from isolates by culture in medium, DNA extraction, and sequencing of the Internal Transcribed Spacer (ITS) region.

引用

页码：211 / 219

页数：9

共 45 条

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