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Conference papers
TURBOSCRUBBER® - BLEACH PLANT SCRUBBER APPLICATION, 19PEERS

TURBOSCRUBBER® - BLEACH PLANT SCRUBBER APPLICATION, 19PEERS

Conference papers
EPP_P_Lib: An Object?Oriented IPSEpro Library for Modeling Kraft Recovery Processes, 2018 PEERS

EPP_P_Lib: An Object?Oriented IPSEpro Library for Modeling Kraft Recovery Processes, 2018 PEERS

Conference papers
How to use TDS measurements to evaluate the performance of diffuser washers • mill study, 2018 PEERS

How to use TDS measurements to evaluate the performance of diffuser washers • mill study, 2018 PEERS

Conference papers
Reduction of Particulate and NOx Emissions from Kraft Recovery Boilers Using Catalytic Filtration Technology, 2018 PEERS

Reduction of Particulate and NOx Emissions from Kraft Recovery Boilers Using Catalytic Filtration Technology, 2018 PEERS

Conference papers
Digester Scale Control: Fundamentals and Best Practices for Responding to Process Variations, 2018 PEERS

Digester Scale Control: Fundamentals and Best Practices for Responding to Process Variations, 2018 PEERS

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Open Access
Fundamental molecular characterization and comparison of the O, D0, and E stage effluents from hardwood pulp bleaching, TAPPI Journal 2019

ABSTRACT: The present study characterized effluents from the O, D0, and E stages using nuclear magnetic reso-nance (NMR) and gel permeation chromatography (GPC) techniques to better understand the chemical nature of the dissolved organics formed from the bleaching of a high-yield hardwood kraft pulp. Understanding the structures and molecular weight distribution of these organics is the first step in developing methods to mitigate these contam-inates in the discharged effluents. The results indicated that the molecular weight distribution (MWD) of the dis-solved organics from oxygen delignification effluent is broader than those from D0 and E stage effluents. In addition, the O stage filtrate contained considerable amounts of lignin and xylan fragments, which showed its efficiency in removing such materials. The effluent from the D0 stage contained a lower amount of high molecular weight frag-ments and a higher amount of low molecular weight fragments versus the O-stage filtrate. Aromatic structures were nearly absent in the D0 stage filtrate, but the degraded organic material, presumably from oxidized lignin, contained olefinic (C=C) and carbonyl (C=O) functional groups. Furthermore, higher molecular weight fragments were detected in the E-stage effluent, presumably due to the extensive solubilization and removal of the oxidized lignin generated from the D0 pulp.

Conference papers
Expansion Of Chemical Recovery Capacity At Södra Cell Värö M

Expansion Of Chemical Recovery Capacity At Södra Cell Värö Mill, Sweden, 2017PEERS

Conference papers
Current Steam Turbine Technology and its Applicability in th

Current Steam Turbine Technology and its Applicability in the Pulp and Paper Market, 2017PEERS

Conference papers
PRE-EVAPORATION CHOICES For INCREMENTAL EVAPORATIVE CAPACITY

PRE-EVAPORATION CHOICES For INCREMENTAL EVAPORATIVE CAPACITY In EXISTING MILLS, 2017PEERS

Conference papers
Leaching and Crystallization Methods for Chloride and Potass

Leaching and Crystallization Methods for Chloride and Potassium Removal from Recovery Boiler Fly Ash, 2017PEERS

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