Selective Adsorption and Efficient Degradation of Petroleum Hydrocarbons by a Hydrophobic/Lipophilic Biomass Porous Foam Loaded with Microbials

• DOI: 10.1021/acsami.1c15380
• Publication Date: 2021-11-05T18:40:50Z
• Authors: Lihua Chen; Kaihui Xu; Yuhan Zhang; Qimeige Hasi; Xiaofang Luo; Juanjuan Xu; An Li
• Keywords: Methyltrimethoxysilane; Degradation; Environmental Pollution; Dibenzothiophene

Highly efficient elimination of petroleum pollution is great importance for addressing environmental issues and social sustainability. In this study, we demonstrate a novel strategy by selective adsorption it an ultralight hydrophobic/lipophilic microorganism-loaded biomass porous foam (BTS-MSFT4@MTMS) followed green degradation adsorbates under mild conditions. The structure (MSFT) could provide plenty room immobilization Bacillus thuringiensis (BTS), while simple surface modification the MSFT load with BTS strain (BTS-MSFT4) methyltrimethoxysilane (MTMS) change its wettability from hydrophilic to lipophilic, which makes hydophobic water biodegradation possible. As expected, using n-hexadecane solution concentration 3% as model oily wastewater, as-prepared BTS-MSFT4@MTMS possesses both superior ca. 99% high activity rate up 86.65% within 8 days conditions 37 °C, 120 r min-1, pH = 7, rates BTS-MSFT4 free were measured be only 81.62 65.65%, respectively, same addition, results obtained study on environment tolerance show that exhibits strong different various pHs, temperatures, initial concentrations. Compared existing methods removal direct via superoleophilic materials or applying microorganisms only, suffers drawbacks low selectivity poor efficiency, our method has advantages cost-effectiveness, scalable fabrication, efficiency without secondary pollution. Moreover, such two-in-one integration into biodegradable may particularly have potential practical application in remediation.