To find an effective way to control heavy metals pollution,Lentinus edodes spent substrate was taken as biological adsorbent for heavy metal ions.The effects of single factors such as adsorption time,p H,dosage,initial concentration of heavy metal ions and the size of spent substrate on the adsorption were investigated.The removal rates of heavy metal ions reached the highest under the following condition:contact time of 60 min,p H of 4.0,spent substrate of 5 g/L,and spent substrate radius less than 0.5 mm....
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