Study on adsorption treatment of wastewater containing copper with beer yeast by the orthogonal method

In this paper the wast beer yeast was used as biosorbent for the biosorption of Cu²⁺ for exploiting a new type of biosorbent.The biosorption action of Cu²⁺ was studied with waste beer yeast by the orthogonal method in diferent temperature、time、pH,initial copperion density and yeast density condition.The results show that the removal rate of Cu²⁺ can be over 92% under the condition of the adsorption temperature is 25℃,adsorption time is 90 min,value of pH is 5,the mass concentration of yeast is 2 g·L^-1 and the concentration of Cu²⁺ is 40mg·L^-1.The technique is simple,the wastewater is harnessed by other waste.Therefore,it will have better applied prospect.