Distribution and risk assessment of heavy metals in sewage sludge after ozonation.

@article{Zhang2017DistributionAR,
  title={Distribution and risk assessment of heavy metals in sewage sludge after ozonation.},
  author={Jian Zhang and Yu Tian and Jun Zhang and Ning Li and Lingchao Kong and Ming Yu and Wei Zuo},
  journal={Environmental science and pollution research international},
  year={2017},
  volume={24 6},
  pages={
          5118-5125
        }
}
In this paper, transformation of chemical forms of heavy metals (Cu, Zn, Ni, Pb, Cr, Cd, Mn, and Mg) in sewage sludge (SS) during ozonation was investigated. Meanwhile, the risk of heavy metals to environment in ozonated sludge (OS) and SS was estimated according to risk assessment code (RAC). The residual rates of heavy metals were over 72.8 %, which demonstrated that the heavy metals in SS were mainly existed in the OS after ozonation. The results indicated that the ozonation had an effect on… CONTINUE READING
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