文档介绍：Journal of Saudi Chemical Society (2011) 15, 105–112
King Saud Univer ions on nano-HAp.
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Open access under CC BY-NC-ND license.
1. Introduction of technologies have been developed to remove toxic heavy
metals from wastewater.
Because of heavy metals toxicity and non-biodegradable nat- Furthermore, automotive, electronics, metal finishing and
ure, the introduction of heavy metals in water is becoming a oil sands industries form a large economic sector in Iran. These
serious environmental and public health concern. A number industries generate a large quantity of wastewater containing
heavy metals such as Pb2+,Cd2+,Zn2+,Ni2+ and others.
Typically, the wastewater from the metal finishing industry
* Corresponding author. Tel.: +98 261 6204131. (e-coating process) contains 20 ppm each of Zn2+ and Ni2+.
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