接种稀释水的空白对BOD_5测定的影响

从接种液种类、空白 BOD5大小、接种液最佳添加范围等方面对 BOD5测定进行探讨 ,提出以接纳工业废水的河水作为最佳接种液 ,雨季时以土壤浸取液更适合。探讨了接种液空白值对 BOD5标液和工业废水的影响。结果表明 ,河水空白应控制在 0 .1～0 .8mg/ L,土壤浸取液空白控制在 0 .0 1～ 0 .1 0 mg/ L为宜。

Influences of inoculated diluting water on BOD_5 determination

s:Effects of the inoculated solution type,the BOD 5 blank and the inoculated solution volume on BOD 5 determination was studied.The results showed that the river water,which took in industrial wastewater,was suitable inoculated solution in general,while the soil extraction was much better in raining time.The influences of inoculated solution blank on the BOD 5 standard solution and industrial wastewater were studied also.The data obtained indicated that the blank of river water and soil extraction should be controlled within 0 1~0 8 mg/L and 0 01~0 10 mg/L respectively.