Ecolab

About: Ecolab is a company organization based out in Northwich, United Kingdom. It is known for research contribution in the topics: Alkyl & Corrosion. The organization has 2860 authors who have published 3193 publications receiving 51478 citations. The organization is also known as: Economics Laboratory.

Dynamics of bacterial assemblages and removal of polycyclic aromatic hydrocarbons in oil-contaminated coastal marine sediments subjected to contrasted oxygen regimes

Abstract: To study the impact of oxygen regimes on the removal of polycylic aromatic hydrocarbons (PAHs) in oil-spill-affected coastal marine sediments, we used a thin-layer incubation method to ensure that the incubated sediment was fully oxic, anoxic, or was influenced by oxic-anoxic switches without sediment stirring. Hydrocarbon content and microbial assemblages were followed during 60 days to determine PAH degradation kinetics and microbial community dynamics according to the oxygenation regimes. The highest PAH removal, with 69 % reduction, was obtained at the end of the experiment under oxic conditions, whereas weaker removals were obtained under oscillating and anoxic conditions (18 and 12 %, respectively). Bacterial community structure during the experiment was determined using a dual 16S rRNA genes/16S rRNA transcripts approach, allowing the characterization of metabolically active bacteria responsible for the functioning of the bacterial community in the contaminated sediment. The shift of the metabolically active bacterial communities showed that the selection of first responders belonged to Pseudomonas spp. and Labrenzia sp. and included an unidentified Deltaproteobacteria—irrespective of the oxygen regime—followed by the selection of late responders adapted to the oxygen regime. A novel unaffiliated phylotype (B38) was highly active during the last stage of the experiment, at which time, the low-molecular-weight (LMW) PAH biodegradation rates were significant for permanent oxic- and oxygen-oscillating conditions, suggesting that this novel phylotype plays an active role during the restoration phase of the studied ecosystem.

Method for manufacturing a molded detergent composition

Abstract: A method for manufacturing a molded detergent composition is provided. The method includes mixing a hydrated component and a hydratable component without heating to provide a mixture, molding the mixture to provide a molded detergent composition, and solidifying the molded detergent composition as a result of movement of the water of hydration from the hydrated component to the hydratable component to provide the molded detergent composition as a solid under conditions of room temperature and atmospheric pressure. The hydratable component includes water, if present at all, at a level of less than about 2 wt. % based on the weight of the hydratable component. The hydratable component is a component which successfully competes with the hydrated component for at least a portion of the water of hydration. Solidification of the mixture takes between about 1 minute and about 15 minutes.

Portable radiation cure device

Abstract: A radiation cure device (10) has a removable light housing (20). The curing device (10) utilizes a fixed output power supply (55), a shutter mechanism (3) and is easily maneuverable because of its light weight. The light housing (20) is laterally offset and is adjustable in a lateral direction.

Stable solid compositions of spores, bacteria, fungi and/or enzyme

Abstract: The present invention relates to a stable solid cleaning composition including a borate salt and spores (bacterial or fungal), vegetative bacteria, or fungi, and to methods of using the composition.