Sorbent system based on acetylated microfibrillated cellulose for remediation of oil aquatic environments

Abstract

The growth of oil exploration and transport in marine environments brings concern over potential environmental disasters caused by oil spills. Thus, various materials are being developed and studied in order to minimize environmental impacts caused by these oil spills. Among these materials, the use of sorbents has appeared as a great potential technique for the treatment of effluents, by separating and collecting oil in the aqueous medium. This work describes the development of a sorbent system based on acetylated microfibrillated cellulose. Initially, cellulose fibers were modified by an acetylation reaction and thereafter, by a mechanical process using a wheel mill grinding. To produce the sorbent system, fibers were coated by three different types of envelopes to prevent leakage during the sorption experiment. Main results indicate a higher oil sorption by sorbents with higher oil viscosity and higher grammage of the envelope. Acetylated microfibrillated cellulose showed low water adsorption and high selectivity to oil and greater oil sorption values than commercially sorbent currently used, based on polypropylene fibers.

Preparation of porous biomass‐based sponge with zein‐alginate for oil absorption

“…For three kinds of organic solvents with low viscosity, the absorption capacity increased with their density increasing. It indicated that the absorption capacity of the materials depended on the density and viscosity of organics, which was consistent with the reported results (Lu et al, 2019; Zimmermann, Zattera, & Santana, 2019). It was also found that solvents and oils could be desorbed from ZSSiOsp, the oil desorption efficiency of sponge for chloroform was got to 90.3%, while RSO was only 65.3% as it had high viscosity.…”

“…In order to investigate the absorption capacity of ZSSiOsp, three kinds of organics were selected as targeted substrates. They were organic solvent, such as hexane, toluene (Tol) and chloroform, petroleum was consistent with the reported results (Lu et al, 2019;Zimmermann, Zattera, & Santana, 2019). It was also found that solvents and oils could be desorbed from ZSSiOsp, the oil desorption efficiency of sponge for chloroform was got to 90.3%, while RSO was only 65.3% as it had high viscosity.…”

Surface and Interface Engineering for Nanocellulosic Advanced Materials

“…The reaction for cellulose fibers can be performed at a relatively high concentration. [ 91 ] Dried cellulose fibers can be modified with a solvent‐free process, in which reactant is used to disperse cellulose [ 81,82,86,87,92 ] or a gas‐phase reaction is performed. [ 89 ] Rojas and co‐workers proposed that the heterogeneous acetylation of wood fibers could weaken the interfibrillar hydrogen bonds, which facilitates nanofibrillation.…”