完全氧化法测定高氯废水的COD_(Cr)

The COD measurement for concentrated chlorides containing samples

从热力学的角度出发，导出了在ＣＯＤ测定过程中Ｃｌ－ 的完全氧化条件。通过不同浓度的含氯邻苯二甲酸氢钾标准溶液和含氯乙醇标准水样的测定表明， 在所提出的完全氧化条件下，由所测得的表观ＣＯＤ减去Ｃｌ－ 的理论ＣＯＤ便得到水样的真实ＣＯＤ，测定结果与实际吻合较好。最后，对测定过程中的有关问题进行了讨论。

The completely oxidation conditions of Cl - is worked out from the thermodynamic principles and tested and verified by a series of lab works in this paper Under the conditions, the real COD from the organic substances in a sample can be obtained by subtract the appeared value of chlorides from that of measured, the former can be perfectly predicted from the concentration of chlorides in the sample