Comparative experiments on the technological performance of disc filters

4th International Conference on Advanced Composite Materials and Manufacturing Engineering 2017

材料科学;化学

Liu, Guangrong^1,2 ; Jiang, Hua^1,2 ; Liao, Dongmei^2 ; Deng, Yingchun^2

Hubei Key Laboratory of Waterjet Theory and New Technology, Wuhan University, China^1

College of Power and Mechanical Engineering, Wuhan University, Wuhan, China^2

关键词: Comparative experiments;    Experimental conditions;    Filter performance;    Filtration performance;    Filtration systems;    Process performance;    Suspended solids;    Technological performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/207/1/012066/pdf
DOI  :  10.1088/1757-899X/207/1/012066

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The filtration performance of JY disc filters was compared with that of Arkal disc filters when a parallel filtration system was designed under lab-scale devices. The comparisons of working and backwash performance were made for different filtration level. The experimental results showed that the two kinds of filters had similar process performance and effluent water quality under the same experimental condition. JY filter has higher filter performance index (FPI) than Arkal disc filters with the micron rating from 20 to 55μm discs, on the other hand, FPI value of JY filter has lower FPI than Arkal disc filters with the micron rating from 100 to 200μm discs. The removal rates of suspended solid(SS) for both filters vary in the range from 64% to 91.5%, moreover, the mean removal rate of SS for JY and Arkal filter was 78.2% and 79% respectively. The removal rates of turbidity were lower than 13% and the mean removal rate of turbidity was 7% for both filters. The critical backwash time and the critical backwash water loss for both filters were 5 seconds and 15 litres respectively.