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紫外分光光度法测定印染废水COD_(Cr) 被引量:13

Determination of COD_(Cr) in wastewater by ultraviolet spectrophotometry
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摘要 研究用紫外分光光度法测定印染废水CODCr的影响因素及其可行性。研究结果表明,在常温下,pH值在2.45~9.22时,pH值对UV254测定结果的影响不大;CODCr在360mg/L以下或UVA254为1.8以下时,UV254与CODCr的相关性显著;此外,利用(UV254-UV365)的吸光度,可消除废水中悬浮物对测定的影响。 An experimental study on the feasibility and influence of determination of CODCr in printing and dyeing wastewater by ultraviolet spectrophotometry was made. The results showed that temperature and pH value of the sample had little influence on UV254 under the condition of normal temperature and pH value between 2.45 - 9.22, and it was prominent correlation between UV254 and CODCr value when either CODcr value less than 360 mg/L or UV254 less than 1.8. Besides of these, the absorbance of UV254-UV365 could eliminate the effect of suspended solid in wastewater,
出处 《印染》 北大核心 2007年第2期37-39,43,共4页 China Dyeing and Finishing
基金 江苏省环境工程重点实验室开放基金资助项目(KF-2004-04)
关键词 测试 分光光度法 废水 化学需氧量 testing spectrophotometry wastewater chemical oxygen demand
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