摘要
以 Cu S O4 - K Al( S O4)2 - Na2 Mo O4 作催化剂,在 H2 S O4 - H3 P O4 体系中快速测定废水 C O Dcr 新方法.回流时间由标准法的2 h ,缩短至0 .5 h ,以 Ag N O3 - Cr K( S O) 4 代替 Hg2 S O4 消除 C I- 干扰。
A new method of quickly determining wastewater COD was studied in the systems of H 2SO 4-H 3PO 4with the catalytic agent CuSO 4-KAL(SO 4) 2-NaMoO 4 in the paper.The heating circumfluence time of speciman was shortened from two hours to a half hour,and the interference of CL was refrained with AgNC 3-CrK(SO 4) 2instead of Hg 2SO 4 to remove pollution from Hg +.
出处
《环境与开发》
1999年第3期35-36,共2页
Environment and Exploitation