钛白废水综合治理工艺探讨

Wastewater Treatment Process of Titanium Dioxide

钛白废水综合治理工艺作为一个系统工程构思,在明确钛白废水产生原因及主要污染因子后,首先提出钛白废水一次石粉中和,经压滤得到白石膏和FeSO4溶液,然后按FeSO4溶液浓度的高、低分别处理:高浓度FeSO4溶液用于制备铁红晶种;低浓度FeSO4溶液则进行二次石灰乳中和,经压滤得到红石膏和回收水。该方案不仅能较好地治理钛白废水,得到高价值副产品,而且治理成本低,使用设备简单。

Comprehensive titanium wastewater treatment process as a systems engineering concept, Titanium waste water and the main causes of pollution factors, the first proposed a powder of titanium waste water, through the filter presses are white gypsum and FeSO4 solution, and then press the FeSO4 concentration of high and low were treated： the high concentration of FeSO4 solution for the preparation of iron oxide red seeds; low concentrations of FeSO4 solution and then in a second Milk of lime, through the filter presses are red gypsum and back water. The program not only to better wastewater treatment of titanium dioxide, are high-value products,and lower treatment costs, the use of simple equipment.