CHENGZhi-wen,CHENXiao-wei,SUNXin,et al.Control of Permeable Brick Clogging by Nanometer Titanium Dioxide[J].China Water & Wastewater,2022,38(5):102-107.
Control of Permeable Brick Clogging by Nanometer Titanium Dioxide
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第5期
Page:
102-107
Column:
Date of publication:
2022-03-01
- Abstract:
- To explore the control effect of nanometer titanium dioxide (Nano-TiO2) on ceramic permeable brick clogging, Nano-TiO2 was loaded on the surface of permeable brick in different ways, and a series of clogging control tests were carried out to measure the change of permeability coefficient with penetration time. The permeability of ceramic permeable brick was improved by introducing proper amounts of Nano-TiO2. Under loading amounts of 1 g and 4 g Nano-TiO2, the permeable bricks loaded with 1 g Nano-TiO2 by spraying and extraction methods both had good permeability. The permeability of permeable bricks loaded with titanium dioxide by spraying method was better than that by extraction method, and the initial and final permeability coefficients of permeable bricks loaded with Nano-TiO2 were 146.15% and 100% higher than those of the unloaded permeable brick, respectively. When titanium dioxide with particle sizes of 5-10 nm, 25 nm, 40 nm and 100 nm was loaded by spraying method, permeable bricks with particle sizes of 5-10 nm showed the best permeable performance and the lowest cost. Therefore, it is recommended that the optimal particle size range of Nano-TiO2 loaded by spraying method is 5-10 nm.
Last Update:
2022-03-01