Innovative. Compact. Durable

A new sewage treatment plant is being built in Weesp. The ICEAS treatment plant meets the highest standards, is compact and requires relatively little energy. With this innovative purification plant, Weesp is again ready for the future.

Water Board Amstel, Gooi and Vecht is having the ICEAS treatment plant built on the site of the current sewage treatment plant (RWZI) in Weesp. This WWTP is dated and will no longer be able to meet the discharge requirements for water discharge in 2020. Waterschap Amstel, Gooi en Vecht tendered the wastewater treatment plant using the Uniform Administrative Terms for Integrated Contracts (UAV-GC) for design & construct with one year of maintenance. It formulated the requirements to be met by the installation and left it to the executing parties to develop the best installation for this purpose. 

Purification tank for the ICEAS purification process. (Image: Fabion)

Project startup

"Waterschap Amstel, Gooi en Vecht ultimately chose the ICEAS technology," says Andre Edelenbos, CSO of the Moekotte Group. "Because many parties are involved in the realization of such an installation, a project start-up was first organized from within the construction consortium - after the contract was awarded. In an informal setting, the partners got to know each other better. This was followed by weekly meetings with the core team consultation group. In these, the same parties work together and share their know-how for the best installation. In this, the Moekotte Group is responsible for the electrical installations." 

ICEAS

In ICEAS treatment, the entire purification process - reacting, decanting, decanting and stabilizing - takes place in one tank. This is in contrast to traditional water treatment plants, where the process is divided into several tanks. The new process saves on space and construction costs, creating opportunities such as expansion. "The population of Weesp has increased significantly in recent years and is expected to continue to increase," says Wolter Wolthers, project manager of the Moekotte Group. "With the larger capacity of the treatment plant and the possibilities for expansion, Weesp will soon be ready for the future." 

Visualization of the treatment plant. (Image: 3Dimensions vof)

Start-up

The engineering firm made the initial design, which was developed into a final design and then into an execution design. Wolthers: "After that, the civil contractor could get to work on the construction work and the mechanical contractor on installing the equipment. The Moekotte Group came into the picture particularly when the electrical installations had to be wired and connected."

"Every project has its ups and downs, and this project was no exception in that," Edelenbos then confessed. "We had imposed a tight schedule on ourselves. This was only achievable with perfect engineering in the preliminary stages. In practice, you are confronted with changes, which delay the process. The good side of the matter is that everyone stayed in conversation with each other and we looked for solutions together. All parties always had the same goal in mind
held."