摘要
水体有机物污染程度的综合指标有CODCr、CODMn、BOD5、TOC等,其中TOC指标是以碳的含量表示水体中有机物总量的综合指标,我国目前尚未将TOC列为常规监测项目,但是TOC作为水体重要指标将越来越受到重视。采集广州地区的常见水样:珠江水、池塘水、河涌水、污水厂进水、污水厂出水各10份用岛津公司的TOC-VCPH型总有机碳分析仪来分析,通过测定样品总碳和无机碳含量,计算二者的差值可得到总有机碳的测定值;用重铬酸钾氧化法(GB11914-89)测定了常见水样的COD。讨论了TOC和COD之间的关系,求出常见水样的COD和TOC一元回归方程,数据表明TOC和COD之间存在比较好的线性关系,可以用TOC指标代替或者计算出COD值。
Synthesis index of water organism pollution has CODcr, CODMn, BOD5, TOC, etc. TOC is the most important. Collecting ord/nary water sample in Guangzhou, such as Zhujiang Water, Pond Water, River Water, Sewage Water, analyzed them with Shimadzu TOC-VCPH Organic Carbon Analyzer. TOC concentration could be obtained by subtracting the TIC （Total Inorganic Carbon） concentration from the TC （Total Carbon）concentration. The results show that TOC has a very good correlation with COD, by means of TOG regression equations. It shows that the COD numerical value can be deduced from TOC determination. The TOG numerical value can be used as rapid pollution monitoring for the water. It can be used as a fast and cheap parameter of index of organic pollution.
出处
《中国测试》
CAS
2009年第3期90-92,共3页
China Measurement & Test
基金
广州市属高校科技计划项目(62060)
