Evaluate the ability and reaction mechanism of ammonium in synthetic water samples with the • OH radical. The research results show that at pH ≤ 7.0, meaning that over 99.5% of ammonium exists in the form of NH 4 + ions , after 5 hours of UV irradiation, the ammonium removal efficiency is ...
Table 2.6B. Effect of SRT on COD treatment capacity Time (day) COD concentration inlet (mg/L) COD load (Kg COD/m3 days ) COD output concentration (mg/L) Efficiency (%) 1 858.61 2,289 83.31 90.30 2 892.12 2,379 84.12 90.57 3 852.16 2,272 85.31 89.99 4 868.23 2,315 86.12 90.08 5 877.29 2,339 87.58 ...
This shows the disadvantages of the process when there is excess iron. High concentrations of Fe 2+ or Fe 3+ lead to the formation of iron precipitates at higher pH values (pH > 2.5) and reduce the current efficiency. Besides, in 2006, Deng and colleagues reported that increasing Fe 2+ ion ...
