污水处理厂污泥制备活性炭的研究.pdf

, Journal ofAnhuiAgr.i Sci. 2010, 38( 31) : 17632- 17635 许勇 傅真治 1, 2 1, 2 3 邵瑞华 , 房 平 , 司全印 ( 1. , 710055; 2. , 710048; 3. , 710004) [目的]研究影响污泥活性炭性能的因素[方法]以污水处理厂未消 脱水污泥为原料, 采用氯 锌炭 活 法制备了污泥活 性炭, 选取氯 锌浓度活 温度活 时间液固比为影响因素, 以碘值和亚甲基蓝作为评价指标, 通过正交实验确定了活性炭的最佳 制备条件; 分析了各影响因素对活性炭性能的影响程度[结果]若以碘吸附值作为评价指标, 最佳水平组合为活 剂浓度 3 mol/L活 温度 450 活 时间30m in液固比为 1. 5 1, 污泥活性炭碘值为 358. 68 mg/g; 若以亚甲基蓝吸附值作为评价指标, 最佳水平组合为 活 剂浓度 4m ol/L活 温度 550 活 时间90m in液固比为 1. 5 1, 污泥活性炭亚甲基蓝吸附值为 45. 9m g/g[结论]各影响因素 对活性炭性能的影响为: 活 温度 活 时间 活 剂浓度 液固比通过电镜分析活性炭孔结构, 污泥活性炭以过渡孔为主 污泥; 活性炭; 活 ; 吸附 X 703 A 0517- 6611( 2010) 31- 17632- 04 Research on Preparation of Activated Carbon from Sewage Sludge SHAO Ruihua et al ( Coll g of Env ironm ntal andM unicipal Engin r ing, X i! an U niv rsity of A rchit ctur and T chnology, X i! an, Shaanx i 710055) Abstract [ Obj ctiv ] Th ami was to study th factors influ ncing th prop rty of th s wag sludg bas d activat d carbons. [M thod] Th activat d carbonw as pr par d from s w ag sludg by carbonization and activation w ith zinc chlor id ( ZnC l ) as activating ag nt. W ith th zinc 2 chlorid conc ntration, activation t mp ratur , activation tmi and liquidsolid ratio as th influ ncing factors, and th adsorption capacity of m thyl n blu and Iod in as th valuation ind x, th optmi um pr paration conditionsw r d t rm in d by orthogonal t st and th influ nc of ach influ ncing factor on th prop rty of activat d carbon w as analyz d. [ R sult] W ith th adsorption capacity of iod in as th valuation in d x, th pr paration param t rs w r obtain d as follows: th activator conc ntration was 3m ol/,l th activation t mp ratur was 450 , ac tivation tmi was 30 m inut s, liqu idsolid ratio 1. 5 1, and th iodin valu is 358. 68mg/g; w ith th adsorption capacity of iod in as th val uation ind x, th optmi a