SWT ROB 7.5 reverse osmosis unit for brackish water with pump (up to 7.5 m3/h)

The SWT ROB 7.5 industrial reverse osmosis unit is intended for deep purification and desalination of brackish water from coastal marine areas and wells, as well as for effluent treatment with a purification degree of up to 99.5% — with the permeate subsequently used as drinking water or for process needs. Rated capacity is 7.5 m³/h (7500 l/h). The typical conversion rate for fresh-type groundwater and surface water is from 50% to 65%.

This model is built on the three-element 8320-series housing and shares it with ROB 6: the 3700×1000×1800 mm frame, the 2" raw water inlet, the pump not exceeding 15 kW, and the three CF cartridges in the pre-treatment are the same for both models. The difference is in capacity and weight: 7.5 m³/h (7500 l/h) and 720 kg / 950 kg here versus 6 m³/h (6000 l/h) and 630 kg / 860 kg for ROB 6. A step above stands ROB 11.25 — a pump not exceeding 18.5 kW, 2½" connections, and four CF cartridges; models up to 4.5 m³/h are built on the narrower 2700×950×1800 mm or 1700×800×1800 mm frame with a 1½" inlet.

Raw water consumption in operating mode is 11-13 m³/h, and membrane flushing requires up to 13 m³/h; the supply line and concentrate discharge point are sized to these figures. Mechanical pre-treatment uses CF cartridges, concentrate outlet 2", permeate outlet 1½".