Study trend of Biodegradability of Phenolic Compounds during Photo-Fenton Advanced Oxidation Process
Publish place: 5th International Congress on Chemical Engineering
Publish Year: 1386
نوع سند: مقاله کنفرانسی
زبان: English
View: 1,512
This Paper With 8 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ICHEC05_085
تاریخ نمایه سازی: 7 بهمن 1386
Abstract:
Phenolic acids constitute a major group of pollutants which are recalcitrant to common biological treatment. In this study synthetic wastewater containing a mixture of p-coumaric and p-hydroxybenzoic acids was evaluated for photo-Fenton pretreatment. The changes in biodegradability (ratio of biochemical oxygen demand to total organic carbon (TOC)) and mineralization (TOC removal) were monitored. While there was a significant biodegradability enhancement during the photo-Fenton process, there was little mineralization (less than 6%) taking place over the course of oxidation. Longer oxidation time did not further improve the pretreatment; rather it decreased the biodegradability of the solution through complete mineralization of the biodegradable intermediates. Resin fractionation of treated solutions indicated an increase in hydrophilic fraction and a decrease in hydrophobic fraction. Indeed, there was a clear and direct correlation between hydrophilic nature of the organics and the biodegradability of the solution, indicating that hydrophilic compounds are more biodegradable. The formation of aldehydes further supported the linkages between biodegradable and hydrophilic compounds.
Keywords:
Authors
Ahmadi
Department of Chemical Engineering, School of Engineering, Razi University, Kermanshah, Iran
Mohseni
Department of Chemical & Biological Engineering, University of British Columbia, ۲۳۶۰ East Mall, Vancouver, BC, V۶T ۱Z۳ Canada;
Vahabzadeh
Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran
Bonakdarpour
Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :