零价铁载体填料主料结合方式对生物强化效果的影响研究  

EFFECT OF ZERO-VALENT IRON FILLER COMBINATION MODE ON BIOCHEMICAL STRENGTHENING TREATMENT

作　　者：李杰[1] 张艳梅[1] 王亚娥[1] 

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070

出　　处：《水处理技术》2015年第3期41-44,共4页Technology of Water Treatment

基　　金：国家自然科学基金项目(51468030)

摘　　要：将海绵铁(一种零价铁多孔材料)载体和聚氨酯软性泡沫塑料载体结合起来应用于废水处理,可大大加强体系生化处理性能。采用SBR反应器,对校园生活污水进行处理,研究了富铁多孔复合载体填料主料结合方式对生物强化效果的影响。结果表明,不同的载体结合方式下反应器降解COD和NH3-N差异不大,但脱氮除磷方面2种载体均匀装填时的处理效果要好于其它结合方式,出水TN可降低50 mg/L左右,尤其突出了体系的强化除磷作用,TP去除率始终保持在90%以上,达到出水0.68 mg/L的高效处理。同时,进行了复合载体均匀结合方式下抗磷冲击负荷的性能研究,实验表明进水TP负荷在6×10-3 kg/(m3·d)附近时体系除磷效果达到最佳。The combination of sponge iron, a kind of zero-valent iron cellular material, and polyurethane soft foam plastic was applied to the wastewater treatment, which could greatly improve the biochemical treatment efficiency. Effect of iron-rich porous composite filler, s bonding forms on biochemical strengthening treatment of campus domestic sewage was investigated by SBR reactors. The results showed that there was no significant difference in the degradation of COD and ammonia nitrogen in SBR reactors with different carrier-form modes. However, the treatment efficiency of these two combinations was better than those of other combination modes when the filling was well-proportioned in the aspect of nitrogen and phosphorus removal. The total nitrogen in the treated effluent was reduced by about 50 mg/L; The intensified effect of phosphorus removal was highlighted especially, and the removal rates of TP was maintained over 90% and the concentration of TP in the effluent fell to 0.68 mg/L efficiently. Meanwhile, the performance of anti-shock phosphorus loading was studied, and the result indicated that the influent total phosphorus load of 6×l0^3 kg/（m3·d） would achieve the best phosphorus removal efficiency.

关 键 词：海绵铁 聚氨酯泡沫 结合方式 强化除磷 

分 类 号：X703[环境科学与工程—环境工程]