The goal of this experiment is to evaluate the effectiveness of different leachate pre-treatment options in terms of COD and ammonia removal. This research focused on the evaluation of physical-chemical methods for pre-treatment of leachate that would be effective and rapid in order to satisfy the requirements of the sewer discharge by-laws. The four pre-treatment options evaluated were: air st...

Methyl tertiary butyl ether (MTBE) is a synthetic chemical that was historically used as an octane booster additive to gasoline. Increasingly there have been concerns about its toxicity and potential carcinogenicity. Because of these concerns, 18 states regulate MTBE levels in groundwater and 17 have banned its use in gasoline. Because of its chemical characteristics, MTBE contaminated sites ar...

has been studied and the formation of acrolein as a product confirmed by gas chromatography-mass spectrometry. Oxi dation of 4-methylcyclophosphamide generates methyl vinyl ketone. This is interpreted to indicate that the acrolein and methyl vinyl ketone arise from oxidation of position 4 of the ring of cyclophosphamide. The Fenton oxidation of both cyclophosphamide and 4-methylcylophosphamide ...

0021-9517/$ see front matter 2010 Elsevier Inc. A doi:10.1016/j.jcat.2010.03.010 * Corresponding author. Fax: +1 510 642 4778. E-mail addresses: [email protected], iglesia@cch Kinetic and isotopic methods were used to establish the identity and kinetic relevance of elementary steps and the effects of cluster size for NO oxidation on supported Pd catalysts. O2 activation on vacancies within n...

Oxidation in 3 types of bovine milk with different fatty acid profiles obtained through manipulation of feed was evaluated by analytical methods quantifying the content of potential antioxidants, the tendency of formation of free radicals, and the accumulation of primary and secondary oxidation products. The milk samples were evaluated in parallel by descriptive sensory analysis by a trained pa...

In this work, a novel thinner derived from natural botany Chinese Larch Tree was obtained by combination lignin with phenol using H2O2 as oxidant and the acting efficiency of lignosulfonate in the drilling fluids is greatly enhanced after oxidation with H2O2. Both the chemical structure and the adsorptive ability of the oxidation...

Atmospheric oxidation reactions are known to affect the chemical composition of organic aerosol (OA) particles over timescales of several days, but the details of such oxidative aging reactions are poorly understood. In this study we examine the rates and products of a key class of aging reaction, the heterogeneous oxidation of particle-phase organic species by the gas-phase hydroxyl radical (O...

This review summarizes the history and most recent advances in aptamers and ribozymes that bind and use redox(reduction–oxidation) cofactors. Redox reactions, catalyzed by protein enzymes in an extant world, play a central role in the metabolism of numerous biological molecules in the living organisms. The burden of catalyzing these reactions in a preprotein-based world (i.e., the hypothesized ...

Organic molecules are currently investigated as redox species for aqueous low-cost redox flow batteries (RFBs). The envisioned features of using organic redox species are low cost and increased flexibility with respect to tailoring redox potential and solubility from molecular engineering of side groups on the organic redox-active species. In this paper 33, mainly quinone-based, compounds are s...