硅藻处理水玻璃旧砂湿法再生污水的影响因素及效果  

Influence Factors of WasteWater from theWet Reclaiming Sodium Silicate Used Sand Treated by Diatom and Its Effects

作　　者：余少强[1] 樊自田[1] 汪华方[1] 

机构地区：[1]华中科技大学材料成形与模具技术国家重点实验室,湖北武汉430074

出　　处：《铸造》2012年第4期412-417,共6页Foundry

基　　金：国家自然科学基金资助项目(51075163);高等学校博士学科点专项科研基金(20100142110017)

摘　　要：研究了不同影响因子对硅藻处理水玻璃旧砂湿法再生的强碱性污水的影响及其效果,影响因素包括:光照强度、光照时间、氮浓度、磷浓度、氮磷比、Fe3+浓度等。结果表明:硅藻生长速度越快、生物量越大,污水处理效果越好。处理7天后,硅藻最多能吸收碱性污水中约44.1%的Na+和48.1%的SiO32+。The effects of different environmental and nutritional factors on waste water from the wet reclaiming sodium silicate used sand treated by diatom and its effects were researched in this paper. The factors include intensity and time of illumination, concentration of nitrogen and phosphorous, nitrogen-phosphorus ratio and ferric ion concentration. The results indicate that there is a good treatment effect when the diatom has a higher growing speed and biomass. About 44.1% sodium ion and 48. l%silicate ion were removed from the waste water after seven days＇ treatment.

关 键 词：水玻璃旧砂 湿法再生污水 硅藻 生物处理 

分 类 号：TG221[金属学及工艺—铸造]