Cleaning of concentrated emulsion sewage of electric-weld pipe lines

Existing processes of cleaning emulsion sewage are based on either physicochemical technology with application of complex of reagents – nonorganic electrolytes and organic flocculants, resulting in obtaining highly-mineralized purified water, which cannot be used for technical water supply, or based on complicated technologies of electrocoagulation and ultrafiltration. This required elaboration of a new technology and equipment for cleaning concentrated emulsion sewage, in particular, those containing emulsol of Wedolit EP-5 grade, used for hydro-mechanical expanders of electric-weld pipe lines. The technology stipulates a successive introduction of a reagent – suspension of alumo-silicate based hard-phased sorbent and solution of flocculant of cation type Praestol-650ВС – into emulsion sewage, their mixing with emulsion water in a definite mode, sedimental differentiation of the formed phases in a precipitator-flocculator “ЭП ОФ”, gravitation concentration and dewatering of the obtained sediment at vacuumfilter. The dewatered sediment can be utilized in cement industry and metallurgy. It was shown that application of the hard-phase sorbent does not result in an increase of mineralization of purified water and enables to use it for technical purposes. The group of companies “ECO-PROJECT”, Ekaterinburg, accomplished a project for Chelyabinsk pipe-rolling plant, elaboration and manufacturing of equipment, as well as commissioning and start-up of the equipment. The elaborated technical solutions in the process of equipment running showed a high efficiency and can be used as a base for creation of facilities of any productivity for cleaning multi-type emulsion sewage at enterprises of various industries.

Role of Liquid-Liquid Phase Transitions in Mechanism of Erythrocyte Protection During Cooling with CRIHBT-115 Cryopreservative Agent

The presence in the system of critical liquid-liquid phase transition (PT) by the mechanism, resulting in formation of dispersion system, namely high-concentrated emulsion, has been established here during cooling when using polarized light microscopy and fixation of critical opalescence phenomenon in erythrocyte concentrate with glycerol-containing cryopreservative agent, designed at the Central Research Institute of Haematology and Blood Transfusion (Russia) (CRIHBT-115 ). The studied cryobiological system displayed no signs of crystallization. A phase behaviour of cryopreservative and supernatant has been studied during cooling-warming cycle. Changes in the volume of cryopreservative and erythrocyte concentrate were comparatively and qualitatively evaluated during cooling. The mechanism of protective action of cryopreservation solution has been determined. The similarity between physical and chemical processes during cooling-warming of erythrocyte cytoplasm and garlic meristem cells (germinal plant tissue) when entering cold anabiosis has been established.

Characterising shear-induced dynamics in flowing complex fluids using differential dynamic microscopy

We show how DDM measures microscopic dynamics in oscillatory or steady shear flows and use the technique to explore the yielding of a concentrated emulsion.

Azine- and Imine-linked Conjugated PolyHIPEs through Schiff-Base Condensation Reaction

A new type of transition metal-free π-conjugated polyHIPEs is obtained by a Schiff-base condensation reaction coupled with a concentrated emulsion-based templating technique. The resulting highly porous azine- or imine-linked poly(arylene)...

EFFECTIVENESS OF THE INSECTICIDE AVANT, CE (CONCENTRATED EMULSION) IN THE PEST CONTROL OF EUROPEAN GRAPE MOTH ON VINEYARDS OF THE REPUBLIC OF CRIMEA

The article presents data of the use of the insecticide Avant, CE (150 g / l indoxacarb) in the standard rate of consumption 0.25 and 0.30 l / ha, for protecting of vineyards from Europen grape moth with average and high population density of the pest. Usage of this preparation allowed to protect the vineyards reliably and obtain a significantly higher crop yields rather than in the control. The biological effectiveness of the insecticide Avant, CE was high during the entire period of protective measures and amounted to 78.4-82.4% in the rate of application 0.25 l / ha, and 85.8-88.7% in rate of application 0.3 l / ha.