Treatment of oil spill by sorption technique using fatty acid grafted sawdust

Optimization Synthesis Conditions and Characterization of Oil Biosorbent: Sugarcane Bagasse Cellulose-Graft-Polystearylmethacrylate Copolymer

“…Oil pollution is one of the foremost environmental issues facing the public today (Ibrahim et al 2010). Although some advanced technology has been developed and used in oil pollution treatment, (such as chemical coagulation, microfiltration, and ultrafiltration), the expensive initial and operating costs inhibit the application of these methods (Hu et al 2004;Banerjee et al 2006). Therefore, an efficient, cost-effective, and environmentally sound method of removing oil pollutants from water has become extremely desirable.…”

Esterification of M. sagu bark as an adsorbent for removal of emulsified oil

“…Despite of their advantages, many natural fibres have low hydrophobicity and low buoyancy, and therefore they are only suitable for oil removal in the absence of water [7]. In response, many studies have been conducted on methods to improve the efficiency of oil removal of natural sorbent by means of alkalisation [5], chloroform treatment [3,5,13], acetylation [2,14], salt treatment [3], surfactant treatment [6,15], combination of chemical-biotechnological treatment [16], and esterification [8,17]. These studies show that appropriate chemical modification of natural sorbent could improve oil removal efficiency.…”

“…An interesting alternative in esterification of natural fibres is using fatty acid derivatives with water as a by-product [17]. Banerjee et al studied on the esterification of sawdust using oleic acid, stearic acid, and decanoic acid in hexane with H 2 SO 4 as the catalyst, at 65 8C for 6 h [17]. The results showed that esterification increased the oil sorption capacity of oleic acid-treated sawdust from 3.5 g/g (nontreated) to 6 g/g of crude oil.…”

“…Acetic acid causes residual smell, loss in material strength due to acidic hydrolysis of holocelullose, and metal fastener corrosion [21]. An interesting alternative in esterification of natural fibres is using fatty acid derivatives with water as a by-product [17]. Banerjee et al studied on the esterification of sawdust using oleic acid, stearic acid, and decanoic acid in hexane with H 2 SO 4 as the catalyst, at 65 8C Sago or Metroxylon sagu, harvested in Sarawak, Malaysia, is a low-cost, natural adsorbent.…”

“…Esterification is one of the widely used chemical modifications to increase oil removal efficiency of natural fibres [14,[17][18][19][20]. Many esterification studies on natural fibres via acetylation in the presence of acetic anhydride have been conducted [21].…”