Peristaltic Pumps For Waste Water Treatment Works (WWTWs)
One of the more common uses of our peristaltic pumps is as primary sludge pumps within Waste Water Treatment Works or Plants (WWTWs / WWTPs) with the typical entry point being the L50 and scaling all the way up to the L100. By virtue of the pumps design the lack of any rotors, glands, seals or valves to block or wear will often result in a reduction overall service and ultimately life costs.
Peristaltic Pumps: WWTW Dosing Applications
On the smaller end of the scale our L10,L15 and L25 are ideal for accurate (± 0.1%) dosing and metering applications that typically involve pumping the likes of caustic soda, polymers, sodium hypochlorite (“hypo”), powder activated carbon (PAC), lime or ferric chloride.
Peristaltic Pump Advantages:
Wear as a result of abrasion from hard solids is mitigated as a result of everything being self-contained within the hose element which is an issue with most pump types especially where rotating elements come directly into contact with the product.
In most instances the use of our peristaltic pumps negates the need to macerate the product prior to being pumped in order to avoid ragging which is a common solution associated with progressive cavity pumps.
In dosing applications sodium and calcium hypochlorite (“hypo”) tends to off-gas when pumped which can result in vapour-locking in diaphragm pumps.
Salt solutions (also common in water softening processes) can prevent valves from closing which can lead to the pumps running dry. Internally there are no valves to close within a peristaltic pump and it’s quite happy to run dry until the cows come home.
With a suction lift of around 9 metres peristaltic pumps are a simpler alternative to traditional submersible sump pumps.