APPLICATION ON DYEING WASTEWATER TREATMENT BY TOURMALINE

Nonmetallic mineral are widely used in the decoloration treatment of printing and dyeing wastewater. At present, the tourmaline is one of the research hotspots in nonmetallic mineralogy domain, particularly its environmental chemistry behavior. The synthetic dyeing wastewater and actual dyeing wastewater were decontaminated by the tourmaline. The influencing factors, such as adsorption time, reaction temperature, pH value, dosage, dyeing wastewater concentration and sizes, were studied in this article. The experimental results indicated that tourmaline has a selectivity to dyeing solution, especially to acid blue black (10B) dyeing solution. Nonmetallic mineral are widely used in the decoloration treatment of printing and dyeing wastewater. At present, the tourmaline is one of the research hotspots in nonmetallic mineralogy domain, particularly its environmental chemistry behavior. There have been researches on the adsorption of heavy metal ion onto tourmaline in detail (R. H. Wu et al. 2002, K. Y. Zhang et al 2004, L. Guo 2004,Z. X. Zhang 2003), but weakly application in printing waste water. The exploring research in the aspect has been done in this paper in order to understand and to grasp the tourmaline's characteristics of the decolorization treating process in dyeing waste water, as well as the influence of the boundary condition to excavate suitable condition and achieve the best processing effect.