Preparation of Polysilicate Aluminium Ferric (PSFA) Using Effluents and its Application on Banknote Printing Wastewater Treatment
Based on the concept of waste control by waste,a kind of inorganic polymeric flocculants which was called Polysilicate Aluminium Ferric (PSFA) was made from bentonite,wastewater containing Al3+,wastewater containing Fe3+ and sulfuric acid under normal temperature conditions,and it was adopted to treat banknote printing wastewater.The experiment results revealed that the maximal Chemical Oxygen Demand (COD) removal efficiency of 95.52% with residual COD of 3571mg/L and color removal efficiency of 96% with residual color of 40 times could be achieved at the optimal dosage of 48g/L wastewater,a number of big and dense alum flocs appeared quite fast,the flocs and water could be obviously separated in a short time,the pH of coagulating effluent of which color was light green was about 4.01,the effects of coagulation were very well.
Banknote Printing Wastewater Polysilicate Aluminium Ferric (PSFA) Flocculants Wastewater Recycling Coagulants
Zumin Qiu Dongjing Liu Junming Qiu
School of Environmental and Chemical Engineering, Nanchang University, China, Nanchang 330031
国际会议
昆明
英文
1376-1380
2011-12-28（万方平台首次上网日期，不代表论文的发表时间）