Removal of nitrobenzene from aqueous solution by a novel lipoid adsorption material (LAM) adsorbent
Persistent organic pollutants (POPs) have been of great concern due to their characteristics of toxicity, persistency and bioaccumulation 1-3. Many of these compounds may present high risks to ecological and human health even at low concentrations 4,5. Nirtobenzene, a member of POPs, is widely used in the production of different types of products, such as dyes, explosives and pesticides 6. Although methods to remove residual POPs from the environment have been taking on increasing attention in recent years, such as adsorption, ozonation, and advanced oxidation processes 8-10, most hazardous POPs with low water solubility are especially difficult to be eliminated from water. Activated carbon has been widely used as an effective adsorbent for several organic compounds of concern in water and wastewater treatment 11,12. However, the high cost of activated carbon materials and their regeneration presents difficulties which limit their application. Previous researchers have shown that the fatty tissue of organisms can accumulate hydrophobic chemicals and that the level of accumulation has a positive correlation with the quantity of fat 13-15. Based on this bioaccumulation as a function of the quantity of fat tissue, an innovative lipoid adsorption material (LAM), with a hydrophobic nucleolus (triolein) and hydrophilic membrane structure (polyamide), was synthesized and used for atrazine removal 16. To completely characterize the adsorption performance of this innovative adsorbent. This study focused on investigating the adsorption behavior of nitrobenzene, a model contaminant, on the novel triolein-embedded adsorbent, while compared to that on the commercially used granular activated carbon (GAC).
Qinxue Wen Zhiqiang Chen Jiaxiang Lian
School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090,P.R.China
国际会议
北京
英文
95-96
2011-11-24（万方平台首次上网日期，不代表论文的发表时间）