نتایج جستجو برای: fenton ef

تعداد نتایج: 16940  

Journal: :Biosensors & bioelectronics 2011
Na Qu Liang-Hong Guo Ben-Zhan Zhu

A simple and sensitive electrochemical biosensor was used to detect tyrosine oxidation induced by hydroxyl radicals generated by Fenton reaction (Fe(2+)/H(2)O(2)). Poly(glu, tyr) (4:1) peptides were immobilized on indium tin oxide (ITO) electrode surface via layer-by-layer assembly technique, and Os(bpy)(3)(2+)-mediated tyrosine oxidation current was employed as the signal reporter of the biose...

2015
Firoz Shah Daniel Schwenk César Nicolás Per Persson Dirk Hoffmeister Anders Tunlid

Ectomycorrhizal fungi play a key role in mobilizing nutrients embedded in recalcitrant organic matter complexes, thereby increasing nutrient accessibility to the host plant. Recent studies have shown that during the assimilation of nutrients, the ectomycorrhizal fungus Paxillus involutus decomposes organic matter using an oxidative mechanism involving Fenton chemistry (Fe H2O2 H ¡ Fe ̇OH H2O), s...

Journal: :Journal of environmental sciences 2016
Siwei Peng Weijun Zhang Jie He Xiaofang Yang Dongsheng Wang Guisheng Zeng

Fenton oxidation is generally inhibited in the presence of a high concentration of chloride ions. This study investigated the feasibility of using benzoquinone (BQ) and hydroxylamine hydrochloride (HA) as Fenton enhancers for the removal of glycerin from saline water under ambient temperature by accelerating the ferric system. It was found that organics removal was not obviously affected by chl...

Journal: :Ultrasonics sonochemistry 2015
Stefanos Giannakis Stefanos Papoutsakis Efthymios Darakas Antoni Escalas-Cañellas Christian Pétrier César Pulgarin

In this study, we attempt for the first time to couple sonication and photo-Fenton for bacterial inactivation of secondary treated effluent. Synthetic wastewater was subjected to sequential high-frequency/low power sonication, followed by mild photo-Fenton treatment, under a solar simulator. It was followed by the assessment of the contribution of each component of the process (Fenton, US, hv) ...

Journal: :Water research 2008
Alejandro Moncayo-Lasso César Pulgarin Norberto Benítez

The generation of disinfection by-products during water treatment can be controlled by reducing the levels of precursor species prior to the chlorination step. The Natural Organic Matter (NOM) is the principal organic precursor and conventional removal of pollutants such as coagulation, flocculation and filtration do not guarantee the total NOM removal. In this study the degradation of NOM mode...

Maryam Khashij , Mehdi Mokhtari , Seyyed Alireza Mousavi ,

Introduction: Dyes are visible materials and are considered as one of the hazardous components that make up industrial waste. Therefore it is removed from bodies of water, using various methods. In this regard, the Fenton oxidation process is one of the most effective ways to remove colored contaminants in aquatic environments, which has many applications today. Materials and Methods: In this...

Journal: :Acta biochimica Polonica 2017
Izabela Sadowska-Bartosz Sabina Galiniak Grzegorz Bartosz

Deoxyribose test has been widely used for determination of reactivities of various compounds for the hydroxyl radical. The test is based on the formation of hydroxyl radical by Fe2+ complex in the Fenton reaction. We propose a modification of the deoxyribose test to detect strong iron binding, inhibiting participation of Fe2+ in the Fenton reaction, on the basis of examination of concentration ...

2016
CJ Fenton

I agreewith Fenton and Fenton that the current evidence on the paleo diet might be considered early or preliminary and that further research is critically needed. There is a risk of great societal harm if dietary guidelines and recommendations are issued without a strong foundation of evidence from methodologically robust randomized controlled trials (RCTs), ideally trials comparing different d...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی ساری - دانشکده کشاورزی 1390

به منظور بررسی روابط فیلوژنی برخی زیگومیست (zygomycete) های خاکزی نمونه برداری از عمق 15-10 سانتی متری خاک های برخی مناطق زراعی و غیر زراعی استان مازندران و گلستان به عمل آمد. پس از جداسازی و خالص سازی زیگومیست ها در محیط اختصاصی رزبنگال 61 جدایه از خاک های این دو استان بدست آمد که بعد از مشاهده کلنی ها، تهیه اسلاید میکروسکوپی و انطباق با کلید های شناسایی موجود در هفت جنس قرار گرفتند. از این بی...

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