Abstract:
Biological activated carbon（BAC） technology has been used for treating simulated wastewater containing Fe and Mn. The existence and contribution of biological effect of activated carbon（AC） on the removal of iron and manganese are discussed， and the parameters of back washing are optimized. The results of the experiment indicate that the BAC has better removal rates of Fe and Mn than AC， which proves the existence of biological effect. The removal of Fe mainly depends on chemical oxidation and physicochemical effect， and less part on biological effect.On the contrary， the removal of Mn mainly depends on biological effect. Through the experiments， the period of back washing varies much with the season and the best back washing time should last 3.5-5.0 min.
Key words:
biological activated carbon,
removal of Fe and Mn,
biological effect,
back wash
摘要：
以生物活性炭(BAC)技术处理铁锰模拟水,探讨活性炭(AC)去除铁锰时生物作用的存在性和贡献率,并优化反冲洗参数。结果表明:BAC对铁锰的去除效果优于AC,证明了存在生物作用;对铁的去除主要依靠化学氧化和物化作用,少部分依靠生物作用;而对锰的去除主要为生物作用;BAC滤柱反冲洗周期受季节影响较大,反冲洗历时以3.5～5.0 min为宜。
关键词:
生物活性炭,
除铁除锰,
生物作用,
反冲洗
CLC Number:
Tang Wenwei, Wang Qian, Zeng Xinping, Wang Zhenzhen, Hao Xiping. Study of biological effect of biological activated carbon on the removal of iron and manganese[J]. INDUSTRIAL WATER TREATMENT, 2010, 30(7): 50-53.
唐文伟, 王茜, 曾新平, 王祯贞, 郝西平. 生物活性炭去除水中铁锰的生物作用研究[J]. 工业水处理, 2010, 30(7): 50-53.