Jump to main content
US EPA
United States Environmental Protection Agency
Search
Search
Main menu
Environmental Topics
Laws & Regulations
About EPA
Health & Environmental Research Online (HERO)
Contact Us
Print
Feedback
Export to File
Search:
This record has one attached file:
Add More Files
Attach File(s):
Display Name for File*:
Save
Citation
Tags
HERO ID
1251058
Reference Type
Journal Article
Title
Application of a CCA-treated wood waste decontamination process to other copper-based preservative-treated wood after disposal
Author(s)
Janin, A; Coudert, L; Riche, P; Mercier, G; Cooper, P; Blais, JF
Year
2011
Is Peer Reviewed?
Yes
Journal
Journal of Hazardous Materials
ISSN:
0304-3894
EISSN:
1873-3336
Volume
186
Issue
2-3
Page Numbers
1880-1887
Language
English
PMID
21216528
DOI
10.1016/j.jhazmat.2010.12.094
Web of Science Id
WOS:000288344000120
Abstract
Chromated copper arsenate (CCA)-treated wood was widely used until 2004 for residential and industrial applications. Since 2004, CCA was replaced by alternative copper preservatives such as alkaline copper quaternary (ACQ), copper azole (CA) and micronized copper quaternary (MCQ), for residential applications due to health concerns. Treated wood waste disposal is becoming an issue. Previous studies identified a chemical process for decontaminating CCA-treated wood waste based on sulfuric acid leaching. The potential application of this process to wood treated with the copper-based preservatives (alkaline copper quaternary (ACQ), copper azole (CA) and micronized copper quaternary (MCQ)) is investigated here. Three consecutive leaching steps with 0.1 M sulfuric acid at 75°C for 2 h were successful for all the types of treated wood and achieved more than 98% copper solubilisation. The different acidic leachates produced were successively treated by coagulation using ferric chloride and precipitation (pH=7) using sodium hydroxide. Between 94 and 99% of copper in leachates could be recovered by electrodeposition after 90 min using 2 A electrical current. Thus, the process previously developed for CCA-treated wood waste decontamination could be efficiently applied for CA-, ACQ- or MCQ-treated wood.
Keywords
Copper; CCA-treated wood; CA-treated wood; MCQ-treated wood; ACQ-treated wood; Acid leaching; Precipitation; Electrodeposition
Tags
IRIS
•
Arsenic (Inorganic)
1. Literature
PubMed
Toxline, TSCATS, & DART
•
Inorganic Arsenic (7440-38-2) [Final 2025]
1. Initial Lit Search
PubMed
ToxNet
4. Considered through Oct 2015
6. Cluster Filter through Oct 2015
Home
Learn about HERO
Using HERO
Search HERO
Projects in HERO
Risk Assessment
Transparency & Integrity