The hyper-eutrophic conditions in impoundments used for irrigation around South Africa’s major cities promote the co-existence of linear alkylbenzene sulfonate (LAS) and other pollutants such as metals. combined effects LAS metals, when water is to irrigate crops, has not been properly investigated light human health risks prevailing local conditions. To understand potential risks, pot-culture ...

Information about in situ toxicity of the bioavailable pools of adsorptive soil pollutants is a prerequisite for proper ecological risk assessment in contaminated soils. Such toxicity data may be obtained by assays allowing for direct exposure of introduced test microorganisms to the toxicants, as they appear in solid solution equilibria in the natural soil. We describe a novel sensitive solid-...

A cold-active endoglucanase-producing bacterium was isolated from the Beaufort Sea of Arctic Ocean and identified as Pseudoalteromonas sp. ArcC09. Cellulolytic activity ArcC09 reached a maximum 60 U/mg when cultivated in ZoBell medium for 72 h at 15 °C. This purified endoglucanase, with molecular mass 28 kDa, exhibited pH 7.0 55 The endoglucanase 10% 36% its maximal even low temperatures 5 °C °...

Linear alkylbenzene (LAB) is a cost-effective and biodegradable intermediate in the production of detergents surfactants. Recently, due to spread Coronavirus high global need for detergent, LAB essential. Kerosene raw material linear paraffin with purity, which are finally converted olefins by dehydrogenation. The mono-olefins react benzene existence catalyst produce used sulfonate (LAS), as de...

Dodecylbenzene sulfonate (DBS) is a component of linear alkylbenzene sulfonate (LAS), an anionic surfactant, mainly used in household detergents. Due to the large quantity of DBS in use, there is concern over adverse environmental effects. This work examined the toxicokinetics and toxicity of the 2-phenyl isomer of dodecylbenzene sulfonate in 4-d, 10-d, and partial life-cycle tests on the midge...