摘要
To convert the non biodegradable sodium lignin sulfonate into biodegradable substances, the sodium lignin sulfonate in the water was ozonized and the pH value, dissolved organic carbon(DOC), ultraviolet absorbency at λ =254 nm(UVA) and the biodegradability of the ozonation effluent were measured. The non biodegradable sodium lignin sulfonate can be partly converted into biodegradable substances by ozonation (about 38 76%). In the ozonation process, there is little DOC decrease, but much UVA decrease and obvious pH drop.
测定臭氧氧化前后水样的pH值、溶解性有机碳 (DOC)、紫外光 (λ =2 54nm)吸光度以及生物降解性的变化 ,研究将水中的生物不可降解的木质素磺酸钠转化为生物可降解物质的方法 .臭氧氧化可以将生物不可降解的木质素磺酸钠部分转化为生物可降解物质 (生物可降解DOC可达 38 76 % ) .在臭氧氧化过程中 ,DOC没有多大变化 ,但UV吸光度和
