The performance of the integrated wastewater treatment system utilizing solar energy as power was investigated.
Figure 4 shows the variation of pollutant concentrations in the oxidation ditch in a 24-hr period.
It was found that the concentrations of COD, NH4+ -N, TN and TP had notable variation between the inner channel and the outer channel.
Therefore, the inner and outer channels of the experimental oxidation ditch were simulated with two bioreactors, one high load and one low load, which would benefit enhancing pollutant removal in the inner channel and maintaining the effluent quality in the outer channel.
As shown in Fig. 4, the effluent concentrations of COD and TP were lower than 23 and 2 mg/L respectively; NH4 + -N could be completely nitrified, and its effluent concentration was lower than 2 mg/L; TN could be removed in the inner and outer channels respectively, and the effluent TN concentration was about 15 mg/L.
The performance of the integrated wastewater treatment system utilizing solar energy as power was investigated.Figure 4 shows the variation of pollutant concentrations in the oxidation ditch in a 24-hr period.It was found that the concentrations of COD, NH4+ -N, TN and TP had notable variation between the inner channel and the outer channel.Therefore, the inner and outer channels of the experimental oxidation ditch were simulated with two bioreactors, one high load and one low load, which would benefit enhancing pollutant removal in the inner channel and maintaining the effluent quality in the outer channel. As shown in Fig. 4, the effluent concentrations of COD and TP were lower than 23 and 2 mg/L respectively; NH4 + -N could be completely nitrified, and its effluent concentration was lower than 2 mg/L; TN could be removed in the inner and outer channels respectively, and the effluent TN concentration was about 15 mg/L.
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The performance of the integrated wastewater treatment system utilizing solar energy as power was investigated.
Figure 4 shows the variation of pollutant concentrations in the oxidation ditch in a 24-hr period.
It was found that the concentrations of COD, NH4+ -N, TN and TP had notable variation between the inner channel and the outer channel.
Therefore, the inner and outer channels of the experimental oxidation ditch were simulated with two bioreactors, one high load and one low load, which would benefit enhancing pollutant removal in the inner channel and maintaining the effluent quality in the outer channel.
As shown in Fig. 4, the effluent concentrations of COD and TP were lower than 23 and 2 mg/L respectively; NH4 + -N could be completely nitrified, and its effluent concentration was lower than 2 mg/L; TN could be removed in the inner and outer channels respectively, and the effluent TN concentration was about 15 mg/L.
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