Model-predicted aeration energy consumption, cost savings and final effluent quality for case studies 1 and 2
. | Case study 1 . | Case study 2 . | ||||
---|---|---|---|---|---|---|
Aeration energy parameter . | Baseline . | Simple measures . | Complex measures . | Baseline . | Simple measures . | Complex measures . |
Consumption (MWh/year) | 4,678 | 4,265 | 3,674 | 2,518 | 2,109 | 1,596 |
Consumption savings (MWh/year) | 413 | 1,004 | 409 | 922 | ||
Maximum demand savings (kW) | 47 | 115 | 47 | 105 | ||
% Consumption saving | 9 | 21 | 16 | 37 | ||
% Consumption cost saving | 10 | 23 | 23 | 41 | ||
Carbon reduction (t/year) | 409 | 992 | 405 | 913 | ||
Average final effluent concentrations | ||||||
Ammonia | 0.4 | 0.3 | 0.8 | 10 | 1 | 3.5 |
Ortho P (mgP/l) | 0.3 | 0.1 | <0.1 | 0.5 | 0.2 | <0.1 |
Nitrate/Nitrite (mgN/l) | 6 | 3 | 1 | 5 | 4 | 3 |
. | Case study 1 . | Case study 2 . | ||||
---|---|---|---|---|---|---|
Aeration energy parameter . | Baseline . | Simple measures . | Complex measures . | Baseline . | Simple measures . | Complex measures . |
Consumption (MWh/year) | 4,678 | 4,265 | 3,674 | 2,518 | 2,109 | 1,596 |
Consumption savings (MWh/year) | 413 | 1,004 | 409 | 922 | ||
Maximum demand savings (kW) | 47 | 115 | 47 | 105 | ||
% Consumption saving | 9 | 21 | 16 | 37 | ||
% Consumption cost saving | 10 | 23 | 23 | 41 | ||
Carbon reduction (t/year) | 409 | 992 | 405 | 913 | ||
Average final effluent concentrations | ||||||
Ammonia | 0.4 | 0.3 | 0.8 | 10 | 1 | 3.5 |
Ortho P (mgP/l) | 0.3 | 0.1 | <0.1 | 0.5 | 0.2 | <0.1 |
Nitrate/Nitrite (mgN/l) | 6 | 3 | 1 | 5 | 4 | 3 |