Study on the Decolorization of Dyeing Wastewater with Peat

The decolorization of simulated dyeing wastewater on peat adsorbent was studied.The influences of various factors on the decolorization were investigated.The experimental results indicate that: Peat has a good decolorization capability at a wide pH range.When the dosage of peat are 80 mg/100 mL and 65 mg/100 mL,the decolorization rate of the reactive yellow K-6G and the reactive blue K-R simulated dyeing wastewater are 84.6% and 86%.The adsorption behaviors of modified attapulgite accord with Langmuir and Freundlich adsorption isothermal equations.