Analysis On the Total Contents and the Speciations of Heavy Metals in the tannery sludge
The contents and the chemical speciations of heavy metals in tannery sludge were analyzed in the paper. The results showed that the heavy metal in tannery sludge were mainly copper, zinc, cadmium, lead, chromium, chromium, and the content of lead and chromium were highest in the tannery sludge, respectively reached at 835.21mg/kg and 1756.95mg/kg. Zn and Cd were mainly existed in the steady state, accounting for 78％ and 57％ of the total, and Cr and Pb mainly existed in the residue state, accounted for 89％ and 90％ of the total. A proportion of the nonsteady Cr and Pb were less, however the content of Cr and Pb were so high, and the content of the nonsteady Cr and Pb were considerable. Therefore treatment of heavy metals of tannery sludge, especially Pb and Cr, should be pay more attention.
tannery sludge heavy metal total content status
Tang Ping Zhu Feng Xie Zheng-miao
College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou,China
国际会议
三峡
英文
25-28
2012-05-18（万方平台首次上网日期，不代表论文的发表时间）