钨尾砂生物陶粒的制备及性能研究

金属矿山 ›› 2008, Vol. 38 ›› Issue (04): 146-148.

钨尾砂生物陶粒的制备及性能研究

冯秀娟^1,2，余育新²

1.华中科技大学；2.江西理工大学

收稿日期:2007-02-20 出版日期:2008-04-15 发布日期:2011-07-20
基金资助:
江西省教育厅科技计划项目（编号：赣教技字［2007］215号）。

Research on Preparation of Biological Ceramsite from Tungsten Tailing and Its Performance

Feng XiuJuan^1.2，Yu Yuxin²

1.Huazhong Univesity of Science and Technology；2.Jiangxi University of Science and Technology

Received:2007-02-20 Online:2008-04-15 Published:2011-07-20

摘要/Abstract

摘要： 以江西大余下垄钨矿的尾砂为原料，炉渣、粉煤灰、粘土为辅料，采用焙烧法进行了制备多孔生物陶粒滤料的试验研究。结果表明，在钨尾砂、炉渣、粉煤灰、粘土的体积比为4∶1.5∶1.5∶1，焙烧温度为1 100 ℃条件下，制备出的生物陶粒粒子密度为1.61 g/cm³、堆积密度为1.10 g/cm³、比表面积为9.7 m²/g、酸可溶率为0.17%、碱可溶率为0.33%、筒压强度为8.1 MPa。用该生物陶粒处理COD_Cr为817 mg/L的实际污水，挂膜速度快，微生物附着量大，易反冲洗，20 d COD_Cr下降率达到93%以上。

关键词: 钨尾矿, 生物陶粒, 挂膜

Abstract: Test research on preparing porous biological ceramsite by roasting with tailings from Xialong Tungsten Mine in Dayu, Jiangxi as the raw material and furnace slag, coal ash and clay as auxiliary materials.The results indicate that when the volumetric ratio of tungsten tailing, slag, coal ash and clay is 4∶1.5∶1.5∶1 and the roasting temperature is 100 ℃, the biological ceramite prepared has a density of 1.61 g/cm³, bulk density of 1.10 g/cm³, specific surface area of 9.7 m²/g, acid soluble rate of 0.17%, alkaline soluble rate of 0.33%, and cylinder-mould strength of 8.1 MPa.When used to treat sewage with 817 mg/L COD_Cr, this biological ceramsite exhibited the advantages of rapid biofilm formation, large microbe attachment and easy backwashing, and reduced 20 d COD_Cr by more than 93%.

Key words: Tungsten tailing, Biological ceramsite, Film

冯秀娟, 余育新. 钨尾砂生物陶粒的制备及性能研究[J]. 金属矿山, 2008, 38(04): 146-148.

FENG Xiu-Juan, YU Yu-Xin. Research on Preparation of Biological Ceramsite from Tungsten Tailing and Its Performance[J]. Metal Mine, 2008, 38(04): 146-148.

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