Skip navigation
Please use this identifier to cite or link to this item:
Title: Identification and advanced oxidation of chloro-organics from bleaching wastewater of pulp and paper mill
Authors: Choudhary Ashutosh Kumar
Kumar Satish
Sharma Chhaya
Published in: Journal of Indian Pulp and Paper Technical Association
Abstract: This study evaluates the effectiveness of ozonation process for the treatment of pulp and paper mill wastewater from bleaching section. The wastewater was characterized for different chloro-organic compounds i.e. adsorbable organic halides (AOX), chlorophenolics, and chloro resin & fatty acids (cRFA). Six categories of chlorophenolics (chlorophenols (CP), chlorocatechols (CC), chloroguaiacols (CG), chlorosyringol (CS), chlorosyringaldehyde (CSA), and chlorovanilline (CV)) and four cRFA were detected in the bleaching wastewater. For ozonation studies, optimization of process variables including initial pH of wastewater and ozone dosage was done in terms of chemical oxygen demand (COD) and color removal efficiency. Under optimized conditions of pH (9.0) and dosage of ozone (1.3 mg O3/mg COD), the removal efficiency for AOX, chlorophenolics, and cRFA was 73, 89, and 92%, respectively. After ozonation, the biodegradability of wastewater was increased about two times. This process proved to be more effective for the removal of cRFA and highly chlorinated chlorophenolics.
Citation: Journal of Indian Pulp and Paper Technical Association (2015), 27(2): 106-120
Issue Date: 2015
Appears in Collections:Journal Publications [PT]

Files in This Item:
There are no files associated with this item.
Show full item record

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.