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《Journal of Shanghai Normal University(Natural Sciences)》 2011-01
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Improved biodegradability of pyridine by means of photocatalysis

YAN Rong,WANG Jie-wei,ZHANG Yong-ming(College of Life and Environment Sciences,Shanghai Normal University,Shanghai 200234,China)  
Pyridine,one of bio-recalcitrant compounds,was treated with photocatalysis to break its molecular structure.It could not be oxidized by potassium dichromate until photocatalysis,which was proved by COD increasing with photocatalytic time increasing.Pyridine was taken as organic carbon source to reduce nitrate in denitrification,and experimental results indicated that nitrate removal percentage with photocatalysis was increased as 4.2 times as that without photocatalysis.When pyridine was treated with photocatalysis and used as organic carbon source for denitrification of 30 min,the nitrate removal percentage was equivalent to the same effect by adding 150 mg/L of glucose as carbon source,which suggested that biodegradability of pyridine was improved after photocatalysis,which could realize pyridine and nitrate removal at the same time.
【Fund】: 国家自然科学基金(50978164);; 高等学校博士学科点专项科研基金(20070270003);; 上海市教育委员会创新基金重点项目(ZZ0982);; 上海市重点学科建设项目(S30406)
【CateGory Index】: X703
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