REMOVAL OF METHYLENE BLUE DYE FROM WASTEWATER BY ADSORPTION ONTO SEMI-INPENETRATING POLYMER NETWORK HYDROGELS COMPOSED OF ACRYLAMIDE AND ACRYLIC ACID COPOLYMER AND POLYVINYL ALCOHOL

M. Zendehdel, A. Barati, H. Alikhani and A. Hekmat

Iranian Journal of Environmental Health Science & Engineering 7 ( 5 ): 431 - 436 , 2010