Water Sample Testing of Landfill Leachate Wastewater
Water Sample Testing of Landfill Leachate Wastewater
I. Purpose of the experiment
To test the water sample and evaluate the COD removal effect after the experiment.
II. Experimental procedure
(1) The water sample was subjected to catalytic oxidation aeration for 60, 100, 140 and 180 min, and samples were taken to measure the water sample COD.
III. Test results
Ozone dosage (min) | COD (mg/L) | COD removed (mg/L) | COD removal rate (%) |
Water sample | 2715 | —— | —— |
60 | 2095 | 620 | 22.83% |
100 | 1895 | 820 | 30.20% |
140 | 1610 | 1105 | 40.69% |
180 | 1570 | 1145 | 57.83% |
IV. Experimental conclusions
(1) After catalytic oxidation of the water sample, at 180 min of ozone aeration the water sample COD was 1570 mg/L, a reduction of 1145 mg/L.
(2) After 140 min of aeration, the COD removal effect of the water sample declined noticeably.
