One hundred and ninety three odor detection thresholds, ODTs, obtained by Nagata using the Japanese triangular bag method can be correlated as log (1/ODT) by a linear equation with R(2) = 0.748 and a standard deviation, SD, of 0.830 log units; the latter may be compared with our estimate of 0.66 log units for the self-consistency of Nagata's data. Aldehydes, acids, unsaturated esters, and merca...

Electro-oxidation, also called electrochemical advanced oxidation, uses electricity to generate hydroxyl radicals to perform oxidation in wastewater treatment. A new commercially available electro-oxidation process—Zimpro® Electro-oxidation (ZEO)—is especially effective for treating the highly problematic spent caustic streams produced by sweetening operations in petroleum refineries and ethyle...

Irradiation of the LOV1 domain from the blue-light photoreceptor phototropin of the green alga Chlamydomonas reinhardtii leads to the formation of a covalent adduct of the sulfur atom of cysteine 57 to the carbon C(4a) in the chromophore FMN. This reaction is not possible in the mutant LOV1-C57G in which this cysteine is replaced by glycine. Irradiation of LOV1-C57G in the absence of oxygen but...

The application of carcinogenic hydrocarbons to skin results in a rapid destruction of the seba ceous glands (3, 7, 13), and it has been suggested that a histological screening test for carcinogens might be based upon this phenomenon (13). Inde pendent studies on skin sterols have revealed that the application of carcinogens to rodent skin de creases the amount of A7-cholestenol in the epider m...

Manure effluents (ME) of livestock enterprises represent a rich nutrient medium for the development various aerobic microorganisms (MO). During biodegradation organic components ME, wide range odor-forming substances (OFS) and greenhouse gases enter atmospheric air. The intensity main directions ME destruction depend on composition amount microbiota. A solution sodium hypochlorite can be used t...

Our industry commonly expends a great deal of energy on determining the concentrations and how to remove CO2 and H2S from sour natural gas in the design of a gas treating and processing facility. Their presence normally drives the size and cost of much of the facility. However, troublesome trace contaminants such as  mercury (Hg),  carbonyl sulfide (COS),  mercaptans (RSH),  and aromatics (...