文献类型：期刊文献

英文题名：Enhancing protein-based foam stability by xanthan gum and alkyl glycosides for the reduction of odor emissions from polluted soils

作者：Gu, Hao[1];Ma, Lijuan[1];Zhao, Tao[1];Pan, Tao[1];Zhang, Pengkang[1];Liu, Bangguo[1];Chen, Xiurong[1,2]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Resou, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China

年份：2023

卷号：398

外文期刊名：JOURNAL OF CLEANER PRODUCTION

收录：;EI(收录号：20231013666416);WOS:【SCI-EXPANDED(收录号:WOS:000964820700001)】；

基金：This research was supported by the National Key Research and Development Program of China (2019YFC1806104) .

语种：英文

外文关键词：Soil remediation; Odorous substances; Odor control; Foam stability; Foaming ability

摘要：Odorous contamination would occur in the polluted soils' remediation of the abandoned industry factory. To suppress odorous substances' emissions, a novel foam was prepared with plant protein, xanthan gum, and alkyl glycosides. Since xanthan gum and alkyl glycosides have the characteristics of prolonged foam half-life and enhanced foaming ability, the optimal ratio of xanthan gum to alkyl glycosides is crucial during foam formu-lation determination. When xanthan gum concentration increased from 0.00% to 0.30%, the viscosity of the foaming solution increased from 12 to 223 mPa center dot s, while the surface tension declined by 12.3%. As a result, the foam half-life increased from 0.3 to 56 h, and the foaming volume decreased by 25.5%. On contrary, with the addition of alkyl glycosides, the surface tension decreased significantly, and the foaming volume increased by 36.5% under the xanthan gum concentration of 0.30%. Therefore, the optimal content of xanthan was 0.30% in the presence of 100 mM alkyl glycoside. Then, this novel foam could prevent 67% of p-xylene from escaping within 24 h. In actual sites, novel foams showed a barrier rate of over 75% on different odorous substances most of the time.