Experimental Study on Application of natural Zeolite to Disposal of Waste Water Containing Heavy Metal Contamination

The adsorption capability of natural zeolite can be improved by modification. After the disposal of plating waste water with modified zeolite the content of Cr 6+ and Zn 2+ in it can decrease to under some content, which is stipulated by state standard. The Zeolite can be reused after desorption with the mixed solution of HCl and NaCl.