Reinventing Sewer Management – Article from Waterforum, October 2025

Rolapac: smarter, cleaner, higher yield, and low-maintenance

What if a single smart innovation could drastically reduce fat build-ups, vibrations, blockages, and CO₂ emissions in sewage pumping stations—while also generating financial savings?

Sound futuristic? Not with Rolapac. This patented technology transforms a long-standing and persistent issue into a sustainable energy source.

The rest of the article can be read at:

https://www.waterforum.net/rioolbeheer-opnieuw-uitgevonden/

Rolapac Floating Layer Removal System – Sustainable Maintenance of Pumping Stations
Article on the Winnovatie website, February 2022

Urban areas are increasingly experiencing floating layers in sewage pumping stations. Waste that does not belong in the sewer clumps together into a “floating fat layer” on the wastewater surface. This includes hair, wet wipes, fats, sanitary products, and condoms. When this material is drawn into the pumps, it causes blockages. Cleaning these pumps is expensive and employees work under undesirable working conditions. This was also the case at the Scheveningen sewage pumping station of Delfland Services.

The rest of the article can be read at:

https://www.winnovatie.nl/innovaties-openbaar/2257591.aspx

Floating Layer Removal in Intake Chambers – Article on the Delfluent Services Website

Since 2005, the Scheveningen Pumping Station, has been responsible for transporting wastewater. With two pumps and multiple suction inlets inside the intake chamber, the station can pump more than 28,000 litres of water per minute.

Floating Layer Removal in Intake Chambers
Shortly after the commissioning of the Scheveningen Pumping Station, it became clear that the pumps were frequently clogging due to hair, wet wipes, fats, sanitary products, and condoms. These materials bond together, forming a “floating fat layer” on the wastewater entering the station. This floating layer is drawn into the pumps, causing blockages that prevent them from pumping wastewater. The pumps must then be cleaned to prevent untreated wastewater from overflowing into surface water.

To avoid pump contamination, the intake chamber had to be cleaned three to five times a year, over two to three days, using various suction and flushing trucks. These activities caused noise nuisance and CO₂ emissions in the surrounding residential area. In addition, maintenance workers had to enter the chamber to clean it manually, and dozens of tonnes of waste had to be removed. This waste was then transported to incineration facilities for disposal.

The rest of the article can be read at:

https://www.delfluent.nl/nl/duurzame-innovaties/drijflaagverwijdering-in-ontvangstkelders

Rolapac Floating Layer Removal System – Article from H2O Magazine, October 2021

Urban areas are increasingly confronted with the formation of floating layers in sewage pumping stations. Fats, wipes, and other materials that do not belong in the sewer clump together. These floating layers lead to high costs, and their removal exposes maintenance teams to undesirable working conditions.

The Rolapac floating layer removal system prevents these layers from forming and significantly reduces the cleaning costs of a pumping station. In addition, it plays a strong role in supporting more sustainable maintenance practices.

Download the full article (in dutch) here: