Cellulosic substrates for removal of pollutants from aqueous systems: A review. Part 4. Dissolved petrochemical compounds

Abstract

Dissolved petroleum-based compounds, e.g. solvents, pesticides, and chemical reagents such as phenolic compounds, can pose significant hazards to the health of humans and ecosystems when they are released to the environment. This review article considers research progress related to the biosorption and removal of such contaminants from water using cellulose-derived materials. The fact that cellulosic materials show promise in removing such sparingly soluble materials from water lends support to a hypothesis that lignocellulosic materials can be broadspectrum adsorbents. Also, the hydrophobic character and sorption capabilities can be increased through thermal treatment and the preparation of activated carbons. As shown in many studies, the efficiency of uptake of various petrochemical products from water also can be increased by chemical treatments of the adsorbent. It appears that more widespread adoption of biosorption as a means of removing petroleumbased products from water has been limited by concerns about the used, loaded biosorbent. Disposal or regeneration options that need to be considered more in future research include enzymatic and biological treatments, taking advantage of the fact that the biosorbent material is able to collect, immobilize, and concentrate various contaminants in forms that are suited for a number of packed bed or batch-type degradative treatment systems.

Implications of apparent pseudo-second-order adsorption kinetics onto cellulosic materials: A review

“…This problem, when applying Eqs. 1 and 3 to typical adsorption phenomena on solid substrates, was already noted in some earlier publications (Hubbe et al 2012a;Hubbe 2013;Hubbe et al 2014). In particular, a pair of adsorption sites each bound to a solid substrate would act as a single site of adsorption during a realistic rate-limiting step in the process (Hubbe et al 2014).…”

“…1 and 3 to typical adsorption phenomena on solid substrates, was already noted in some earlier publications (Hubbe et al 2012a;Hubbe 2013;Hubbe et al 2014). In particular, a pair of adsorption sites each bound to a solid substrate would act as a single site of adsorption during a realistic rate-limiting step in the process (Hubbe et al 2014). For this reason, the fact that adsorption kinetics often can be well fitted to PSO kinetics may need to be explained starting with different assumptions.…”

“…The selection of the Langmuir isotherm for such fits can be justified based on their well-established theoretical foundation (Langmuir 1918). Also, systems of adsorbates and adsorbents that have been found to fit well to a Langmuir model generally have been judged to be promising with respect to suitability for efficient removal of various solutes from solution (Hubbe et al 2014). Tan and Hameed (2017) noted that Douven's system can give excellent mathematical fits to data that also fit the PSO model.…”

Hydrogel Based on Tricarboxi-Cellulose and Poly(Vinyl Alcohol) Used as Biosorbent for Cobalt Ions Retention

“…Polysaccharides have adsorbent properties, which are exploitable in concentration-separation-purification processes as (bio)adsorbents with high specificity [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ].…”

Dissolution of organic components of straw by ionic liquid

“…Cellulose is widely used in various fields because of its excellent properties (Hubbe and Lucia 2015). For example, Hubbe et al (2014) reviewed the usage of cellulose-based adsorption materials to remove petrochemical pollutants from water. In addition, hemicellulose can be used to reduce water pollution (Ayoub et al 2013).…”