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is an efficient method, which separates surfactants and pollutants in surfactant enhanced aquifer remediation (SEAR). The effects of Tween 80 mass concentration, contaminations and extractions natures... of Tween 80 losses from large to small rate is n-hexadecane, n-decane and n-hexane. Key words: solvent extraction; surfactants; separation; loss 随着我国经济和社会的迅猛发展,地下水有机污染日趋严重[1-2],高效修复治理技术的应用迫在眉睫[3-4].在众多修复技术中......
of amphion polymer, sulfonation polymer, high effectively preventive water-blocking surfactants, ideal packing temporary bridging agents (TBA) and film-forming agents, etc., were developed. New low...-blocking surfactants, ideal packing TBA, film-forming agents etc. Its rheological property, inhibition, compatibility and regained permeability were experimentally evaluated. Both lab-evaluation......
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(SEM) and cyclic-voltammogram (CV) techniques. The results revealed that the morphologies of the Cu3V2O7(OH)2·2H2O (CVOH) nanocrystals could be controlled by changing copper salts, surfactants and pH... synthesized under different conditions, by varying copper sources (CuSO4, Cu(NO3)2, Cu(CH3COO)2, or CuCl2), Cu2+ concentration (0.03-0.075 mol/L), surfactants (PVP, SDBS or CTAB), pH values (3-11......
: The biodegradability of alkyl xanthates was evaluated by the methods of BOD5/CODCr, static–flasks test and OECD-301B(ISO 9439) according to the testing standard for biodegradability of surfactants and other...): 1212-1218. [6] Adam R, Grochowalski D G, Cooper J A. Effect of surfactants on plasticizer biodegradation by bacillus subtilis ATCC 6633[J]. Biodegradation, 2007, 18(3): 283-293. [7] Singh D K......