生物改性竹炭对污水净化效果的研究

对不同最终炭化温度(300~700℃)的竹炭进行比表面的测定,结果表明炭化温度为700℃的竹炭具有较大的比表面积(385m²/g)。将炭化温度为700℃的竹炭进行生物改性处理,利用竹炭本身的吸附能力及微生物菌群的生物降解作用,对污水进行处理,实验结果表明:生物改性竹炭对污水中COD去除率达到94.00%,氨氮的去除率达到96.67%,色度去除率达到88.73%,浊度去除率达到92.56%。通过扫描电镜分析生物改性竹炭,观察到竹炭的表面和内部孔隙均分布着丰富的微生物菌群。可见,以竹炭作为载体,为微生物聚集、繁殖生长提供了良好的场所,在适当的温度及营养条件下,能够同时发挥竹炭的吸附作用和微生物的生物降解作用,使水质得到净化。

Study of Biological Bamboo Charcoal in Waste Water Purification

The specific surface area was tested for bamboo charcoals with different final carbonization temperature,and the result showed that when carbonization temperature of bamboo charcoal reached 700℃, the bamboo charcoal had larger specific surface area(385 m2/g).After biologic treatment,the bamboo charcoal with the carbonization tempertature of 700℃was used to treat water by makin use of the adsorption ability of bamboo charcoal and the biodegradation of microorganisms.The experiments showed that by using biolo...