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.

Enhanced method for monitoring the deposition of organic materials in a papermaking process

Abstract: A method for monitoring the deposition of one or more organic materials dispersed in an aqueous medium in a papermaking process comprising: measuring the rate of deposition of the organic materials from the aqueous medium on-to a quartz crystal microbalance having a top side contacting with the aqueous medium coated with a layer containing a non-swelling epoxy resin or a silicon containing polymer, and a second, bottom side isolated from the aqueous medium is disclosed. Additionally, a method for measuring the effectiveness of an inhibitor that decreases the deposition of the organic materials in a papermaking process is also disclosed.

Native European eels as a potential biological control for invasive crayfish

Abstract: SUMMARY 1 Invasive species may have strong negative impacts on ecosystems Invasive crayfish are well known to cause ecological imbalances in freshwater systems and have become targets in eradication programmes 2 The red swamp crayfish (Procambarus clarkii) is vulnerable to predation by several fish species The European eel (Anguilla anguilla) appears to be a very good candidate given its benthic feeding activity and ability to recognise prey by odour 3 Our study took place from 2009 to 2013 in a closed system in south-eastern France in which ponds were sampled twice a year by passive capture methods to evaluate trends in populations of potential prey Eel population dynamics were assessed by means of a multistate capture–recapture model, and diet assessment was performed using stable isotope analysis in October 2010 and October 2012 4 Our results show that the invasive crayfish was the most important prey in the eel diet, and every size-class of crayfish was preyed upon by the predator 5 A high predator density, approaching carrying capacity for the European eel in this system, strongly affects P clarkii populations, leading them to their collapse, but not eradication

Non-corrosive oven degreaser concentrate

Abstract: The invention relates to a non-corrosive degreasing concentrate and ready to use formulation. In particular, non-corrosive compositions capable of removing polymerized grease as effectively as some alkali metal hydroxide (i.e. caustic) based degreasers without requiring the use of personal protective equipment are disclosed.

How territoriality and host-tree taxa determine the structure of ant mosaics

Abstract: Very large colonies of territorially dominant arbo- real ants (TDAAs), whose territories are distributed in a mo- saic pattern in the canopies of many tropical rainforests and tree crop plantations, have a generally positive impact on their host trees. We studied the canopy of an old Gabonese rainforest (ca 4.25 ha sampled, corresponding to 206 Blarge^ trees) at a stage just preceding forest maturity (the Caesalpinioideaedominated;theBurseraceaewereabundant). The tree crowns sheltered colonies from 13 TDAAs plus a co- dominant species out of the 25 ant species recorded. By map- ping the TDAAs' territories and using a null model co- occurrence analysis, we confirmed the existence of an ant mosaic. Thanks to a large sampling set and the use of the self-organizing map algorithm (SOM), we show that the dis- tribution of the trees influences the structure of the ant mosaic, suggesting that each tree taxon attracts certain TDAA species rather than others. The SOM also improved our knowledge of the TDAAs' ecological niches, showing that these ant species are ecologically distinct from each other based on their rela- tionships with their supporting trees. Therefore, TDAAs should not systematically be placed in the same functional group even when theybelongto the same genus. We conclude by reiterating that, in addition to the role played by TDAAs' territorial competition, host trees contribute to structuring ant mosaics through multiple factors, including host-plant selec- tionbyTDAAs,theageofthetrees,thepresenceofextrafloral nectaries, and the taxa of the associated hemipterans.

Hydrogen sulfide scavengers

Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.