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. 2020 Dec 14;10(12):421. doi: 10.3390/membranes10120421

Table 2.

Conventional activated sludge unit LCI.

Element Input Output Quantity/Day Quantity/FU Unit Notes
Sewage Treatment Unit Capacity 1.9 × 108 L/year
(20 years lifetime)		 2.60 × 10−4 5.22 × 10−7 items EcoSpold 2
Wastewater Qin 528 m3/day 528 1.06 m3
Influent Pump Electricity 7.67 kW × 7.34 h/day 56.3 1.13 × 10−1 kWh
Equalization Tank Mixer Electricity 1.2 kW × 24 h/day 28.8 5.77 × 10−2 kWh
Denitrification Mixer Electricity 1.2 kW × 24 h/day 28.8 5.77 × 10−2 kWh
Nitrification Blowers Electricity 2 × 10 kW × 24 h/day 480 9.62 × 10−1 kWh
Sedimentation Bridge Electricity 0.75 kW × 24 h/day 18 3.61 × 10−2 kWh
Sludge Circulation Pump Electricity 4 kW × 24 h/day 96 1.92 × 10−1 kWh
Sludge Removal Pump Electricity 0.25 kW × 6 h/day 1.5 3.01 × 10−3 kWh
Q Sludge Out 269.3 Kg/day 269.3 5.40 × 10−1 Kg to landfill
Sludge Transportation 35 Km × 29 m3/day 9425.5 1.89 × 101 Km Kg Lorry EURO6
10 tons
PAC (flocculent) 90.6 kg/day 90.6 1.82 × 10−1 Kg EcoSpold 2
iron(II) chloride
Polyelectrolyte 0.966 kg/day 0.97 1.94 × 10−3 Kg EcoSpold 2
aluminium sulfate, powder
Mixer Electricity 0.41 kW × 24 h/day 9.84 1.97 × 10−2 kWh
Polyelectrolyte Pump Electricity 0.40 kW × 24 h/day 9.6 1.92 × 10−2 kWh
Flocculation Mixer Electricity 0.41 kW × 24 h/day 9.84 1.97 × 10−2 kWh
Drum Filter Electricity 0.50 kW × 6 h/day 3.0 6.01 × 10−3 kWh
Treated Wastewater Qout 499 m3/day 499 1.00 m3