کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4486839 1317002 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Precipitation of enzyme-catalyzed phenol oxidative coupling products: Background ion and pH effects
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Precipitation of enzyme-catalyzed phenol oxidative coupling products: Background ion and pH effects
چکیده انگلیسی

The effects of solution pH and background ion types and concentrations on the precipitation of polymeric products generated in the catalytically facilitated oxidative coupling of phenol were investigated systematically. The coupling reactions mediated by horseradish peroxidase were carried out under a specific predetermined experimental condition. Acids, bases, and/or selected salts of ions having different valences were then added to the resulting product solutions to adjust pH and ionic conditions. Subsequent analyses of product distributions between dissolved and precipitated forms revealed that ionic conditions and pH significantly impact those distributions, and associated mechanisms are discussed. The findings reported will assist feasibility assessments and process optimization with respect to engineering applications of catalyzed oxidative coupling reactions for wastewater treatment and soil decontamination.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Water Research - Volume 39, Issue 13, August 2005, Pages 3021–3027
نویسندگان
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