KN-B removal from water by non-thermal plasma.
The degradation of Reactive Black 5 (KN-B) in water using double-dielectric barrier discharge (DDBD) was studied. Experimental results showed that the KN-B degradation rate increased as the initial pH decreased. Low concentrations of Fe(2+) enhanced the degradation, whereas high concentrations of Fe(2+) hindered the degradation. The results showed that DDBD did not noticeably reduce total organic carbon but did reduce the pH value and improve the biodegradability of the solution significantly. Furthermore, the UV-Vis spectra of the dye showed that the chromophore group was damaged and that the solution was decolorized after the 10-min degradation process.
School of Environmental Science and Engineering, Dong Hua University, Shanghai 201620, China E-mail: liuyanan@gmail.com.
Ya-nan
YN
Liu
Lu
L
Tian
Rui
R
Li
Shu-fang
SF
Mei
Gang
G
Xue
Stéphanie
S
Ognier
D002244:Carbon / Q000032:analysis; D004396:Coloring Agents / Q000737:chemistry*; D004563:Electrochemistry; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000737:chemistry; D009282:Naphthalenesulfonates / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods
D004396:Coloring Agents; D009282:Naphthalenesulfonates; D014874:Water Pollutants, Chemical; D002244:Carbon; D007501:Iron; C063421:Remazol black B