Painting industry wastewaters contain some organic compounds that are refractory to biodegradation and must be eliminated by advanced wastewater treatment. Borondoped diamond (BDD) electrodes exhibit various important characteristics, such as a wide potential window of water stability, chemical resistivity and the tendency to resist deactivation. In this work BDD electrodes were employed for the electrooxidation of organics present in wood painting wastewater. Electrolysis was carried out in an undivided cell under current limited control with a current efficiency of near to 100%. Electrooxidation using the BDD electrode enables to significantly reduce the amount of main organic components in wastewater and chemical oxygen demand (COD) up to 93%. The effectiveness of the electrooxidation slightly depends on pH and decreases with increase in pH. The specific energy consumption amounts to 20–27 kWh/kg COD when the anodic current density is 10–20 mA/cm². Electrooxidation using the BDD electrode can be a promising method for the painting wastewater decontamination.

Issues:

2017 - Vol.28
No. 1, No. 2, No. 3, No. 4

2016 - Vol.27
No. 1, No. 2, No. 3, No. 4

2015 - Vol.26
No. 1, No. 2, No. 3, No. 4

2014 - Vol.25
No. 1, No. 2, No. 3, No. 4

2013 - Vol.24
No. 1, No. 2, No. 3, No. 4

2012 - Vol.23
No. 1, No. 2, No. 3, No. 4

2011 - Vol.22
No. 1, No. 2, No. 3, No. 4

2010 - Vol.21
No. 1, No. 2-4

2009 - Vol.20
No. 1, No. 2, No. 3, No. 4

2008 - Vol.19
No. 1, No. 2, No. 3-4

2007 - Vol.18
No. 1, No. 2, No. 3, No. 4

2006 - Vol.17
No. 1, No. 2-3, No. 4

2005 - Vol.16
No. 1, No. 2, No. 3-4

2004 - Vol.15
No. 1, No. 2, No. 3, No. 4

2003 - Vol.14
No. 1, No. 2, No. 3, No. 4

2002 - Vol.13
No. 1, No. 2, No. 3, No. 4

2001 - Vol.12
No. 1, No. 2, No. 3, No. 4