伯胺类捕收剂的初级生物降解性能

通过改进的振荡培养法对典型伯胺类捕收剂十二胺（DA）和十八胺（OA）的初级生物降解性能进行分析评价。通过可见光谱扫描得出DA和OA浓度测定的最大吸收波长均为412 nm，由此得出其浓度测定标准曲线，并通过采用加热、加酸和再溶解的方法对OA进行测定，振荡培养法测出DA和OA的初级生物降解度分别为99.0%和97.9%。研究结果表明:在振荡培养的条件下，DA和OA均为易生物降解捕收剂，DA的初级生物降解性能优于OA，并且该条件下生物降解得到强化，使得OA生物降解性能得到有效提高，为处理含伯胺类浮选药剂的矿山废水提供理论参考。 

Primary Biodegradation of Primary Amine Collectors

Improved shaking culture test was applied to analyze the primary biodegradation of Dodecylamine（DA）and Octadecylamine（OA）.According to visible spectra scanning，maximum wave length of DA and OA was 412 nm.In the improved shaking culture test，concentration of OA was determined by heating，adding concentrated hydrochloric acid，and re-dissolving method.According to shaking culture test，primary biodegradability of DA and OA was 99.0% and 97.9%.Results showed that under condition of shaking culture test，DA and OA were both easily biodegradable，and primary biodegradation of DA was easier than OA.In the same conditions，microorganism was augmented making biodegradability of OA improved effectively.The primary biodegradation law of DA and OA could be applied as theoretical basis for treatment of mine wastewater containing primary amine collectors.