Effectiveness of N,O-carboxymethyl chitosan on destabilization of Marine Diesel, Diesel and Marine-2T oil for oil spill treatment

被引：56

作者：

Doshi, Bhairavi ^{[1
]}

Repo, Eveliina ^{[1
]}

Heiskanen, Juha P. ^{[2
]}

Sirvio, Juho Antti ^{[3
]}

Sillanpaa, Mika ^{[1
]}

机构：

[1] Lappeenranta Univ Technol, Lab Green Chem, Sammonkatu 12, Mikkeli 50130, Finland

[2] Univ Oulu, Res Unit Sustainable Chem, POB 3000, FI-90014 Oulu, Finland

[3] Univ Oulu, Fibre & Particle Engn Res Unit, POB 4300, FI-90014 Oulu, Finland

来源：

CARBOHYDRATE POLYMERS | 2017年 / 167卷

关键词：

N; O-carboxymethyl chitosan; Oil droplets; Micro emulsions; Oil spill treatment; Marine diesel; Adsorption; CARBOXYMETHYL-CHITOSAN; AQUEOUS-SOLUTION; WATER; DEACETYLATION; EXPOSURE; RED;

D O I：

10.1016/j.carbpol.2017.03.064

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Oil spills are the significant sources of hydrocarbons entering in the receiving aquatic environment. An efficient method to remove hydrocarbons from water resources is adsorption. In this study, water soluble N,O-carboxymethyl chitosan (NO-CS) was synthesized by carboxymethylation of chitosan in a hydro-alcoholic medium at 50 degrees C by chloroacetic acid. The polymer was characterized through degree of deacetylation, degree of substitution, FTIR and H-1 NMR. Effectiveness of NO-CS as an adsorbent was studied as a function of dosage, salinity and pH to destabilize the Marine diesel (Oil-1), Diesel (Oil-2) and Marine-2T oil (Oil-3) into small oil droplets of less than 100 pm. Optical microscope was used for studying the size of oil droplets and adsorption effect of the oils on this polymer. The destabilization of marine diesel was the most effective among the studied three oils, which showed excellent adsorption at sea water alkalinity and salinity. (C) 2017 The Authors. Published by Elsevier Ltd.

引用

页码：326 / 336

页数：11

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