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Removal of refractory compounds by ultraviolet and anodized TiO_2 metal membrane with reactive nano-sized cylindrical tubes on its surface

机译:紫外线和阳极氧化的TiO_2金属膜表面带有活性纳米圆柱管去除难处理的化合物

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We investigated the treatment performance of conventional membrane separation, UV irradiation, UV/O_3 system and UV/anodized TiO_2 membrane technology for the removal of N-Nitrosodimethylamine (NDMA) from water. The RO membrane did not prove to be effective for NDMA removal. The UV/anodized TiO_2 membrane process decomposed almost 100% of NDMA in the range of all NDMA concentrations. UV/A-Ti-M system was achieved the complete removal of NDMA within 20 mg l~(-1) of NDMA concentration, indicating that the UV/ anodized TiO_2 membrane process is a promising treatment technology for treating NDMA contaminated water. With regards to by-products, DMA yield increased with an increase in initial NDMA concentration, whereas MA yield decreased.
机译:我们研究了常规膜分离,UV照射,UV / O_3系统和UV /阳极氧化TiO_2膜技术从水中去除N-亚硝基二甲胺(NDMA)的处理性能。反渗透膜未证明对去除NDMA有效。在所有NDMA浓度范围内,UV /阳极氧化TiO_2膜工艺几乎分解了100%的NDMA。 UV / A-Ti-M体系在NDMA浓度20 mg l〜(-1)范围内实现了NDMA的完全去除,表明UV /阳极氧化TiO_2膜工艺是一种有前途的处理NDMA污水的处理技术。对于副产物,DMA产量随初始NDMA浓度的增加而增加,而MA产量则下降。

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