生物质基活性炭对对硝基苯酚吸附性能比较

Comparison of adsorption properties of biomass based activated carbon for p-nitrophenol

对硝基苯酚毒性大,难于生物降解,是化工、农药和染料等行业废水中常见的有机污染物。采用木质活性炭、椰壳活性炭和煤质活性炭对对硝基苯酚吸附性能进行研究,对比不同活性炭对对硝基苯酚的吸附效果,考察不同活性炭吸附对硝基苯酚的经济效益,吸附强度和吸附量顺序为:椰壳活性炭﹥煤质活性炭﹥木质活性炭,选择煤质活性炭吸附对硝基苯酚。

p - Nitrophenol is a common organic pollutants in the wastewater of chemical industry, pesti- cide,dyestuff and so on due to its high toxicity and difficult biodegradation. The adsorption behaviors of wooden activated carbon, coconut shell activated carbon and coal activated carbon for p - nitrophenol were studied, and their adsorption effects for p - nitrophenol were compared. The economic benefits of p - nitro- phenol adsorption on different activated carbon materials were investigated. The order of adsorption strength and adsorption capacity was as follows：coconut shell activated carbon 〉 coal activated carbon 〉 wooden activated carbon. The coal activated carbon was chosen for p - nitrophenol adsorption.