By L. Buys, K. Mengersen, S. Johnson, N. van Buuren, A. Chauvin
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Extra resources for Creating a Sustainability Scorecard as a predictive tool for measuring the complex social, economic and environmental impacts of industries, a case study: Assessing the viability and sustainability of the dairy industry
The presence of acidic auxochromes increases the negative charge of the dye molecules, enabling ionic interactions with the – NH3+ groups in chitosan. Chitosan or its derivatives have mainly been applied to remediate acidic or acid-azoic dyes that contain sulfonate groups (–SO3À) (Table 4). Chitosan has also been used for sorbing congo red (Chatterjee et al. 2007), reactive black 5 (Guibal et al. 2005), reactive red 222 (Wu et al. 2000), direct scarlet B (Annadurai 2000), acid blue 161 (Aksu et al.
K. Yong et al. contaminants from wastewater. Chitosan is known to have a high capacity for sorbing oily contaminants (Yong and Wong 2013). Because chitosan is positively-charged at low pH values, it may be an effective coagulant for anionic organic contaminants such as dyes, tannins and humic acids. , phenol and bisphenol A (BPA)) have been remediated by using chitosan incorporated with enzymes (Suzuki et al. 2010), clay (Fan et al. 2007) and Cu(II) hydroxide nanoparticles (Jaiswal et al. 2012).
In: Elvers B, Arpe H-J (eds) Ullmann’s encyclopedia of industrial chemistry. Wiley-VCH, Weinheim, pp 471–481 Hirano S, Itakura C, Seino H, Akiyama Y, Nonaka I, Kanbara N, Kawakami T (1990) Chitosan as an ingredient for domestic animal feeds. J Ag Food Chem 38:1214–1217 Hsien T-Y, Rorrer GL (1995) Effects of acylation and crosslinking on the material properties and cadmium ion adsorption capacity of porous chitosan beads. Sep Sci Technol 30:2455–2475 Hu X, Wang R, Ao Y (2006) Effects of chitosan on soil physical and chemical properties.