Juan Sun , Jing Qu , Shuixiang Xie , Tong Zhao , Fang Liu , Chunshuang Liu
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引用次数: 0
Abstract
Efficient and rapid cleanup of marine oil spills is crucial for environmental protection and resource recovery. Biomass aerogel has a broad application prospect in oil spill treatment, but is often limited by the complex preparation process and the use of toxic cross-linking agents. In this study, the hydrophobic gelatin-based aerogels (HGAs) were simply prepared for marine oil spill recovery based on self-crosslinking of gelatin, bubbles produced by surfactants and high-speed stirring, and chemical vapor deposition using methyl trichlorosilane (MTCS). The results showed that the HGAs exhibited a three-dimensional porous structure with a water contact angle of 131.6°. Their adsorption capacities for various oils and organic solvents ranged from 60.4 to 146.5 g/g, which was linearly related to the oil density and depended on the number of pores within the material. The oil adsorption by the HGAs reached equilibrium within 30 s, following the pseudo-second-order kinetic model and the HGAs were highly stable in different temperature, pH, and salinity conditions. Simple squeezing can recover 80 % of the spilled oil, and retain 86 % of the initial adsorption capacity after 10 adsorption-squeeze cycles. Additionally, the HGAs had an excellent continuous oil-water separation performance, demonstrating significant potential and practicability in marine oil spill recovery.
期刊介绍：
The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies
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