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The average proportion of extraneous water in the sewage plant inlet of the Abwasserzweckverband Nagold (Nagold Wastewater Special-Purpose Association) is 70% and thus clearly exceeds the value of the increased extraneous water levy to the district administrator's office. But even without this regulatory pressure, the operator of the sewage plants is already highly motivated to reduce the proportion of clear water in the association's territory. Find out in this report what contribution a SAERTEX-LINER makes to minimizing extraneous water inflows.

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Are you looking for a sustainable rehabilitation option for supply or wastewater pipes?

Rehabilitation using trenchless technology is in itself more sustainable than conventional construction methods. In addition, we have set ourselves the goal of increasing our contribution to CO2 savings even further. The topic of sustainability is therefore an integral part of our corporate strategy, which is continuously driven forward by Michael Lensing as Sustainability Manager at SAERTEX multiCom.

Watch the film about it.

In order to make trenchless pipeline rehabilitation more sustainable, SAERTEX multiCom introduced the SAERTEX-LINER UPgreen at the end of 2020. The company has since used this key innovation in the sustainable production of GRP liners as standard for all SAERTEX-LINERS in the product range with UP resins. To date, the new technology has enabled savings of one million kilograms of CO₂.

The regular existence of excessively large annular spaces between the CIPP and the existing pipeline after installation has been recently the subject of controversial discussions among experts. The various reasons for the annular space as well as the effects on structural integrity are discussed.In the following technical report by Dr.-Ing. Ricky Selle a systematic approach to the topic is made. The possible reasons for the formation of annular spaces are pointed out and classified in terms of their potential. On this basis, the effects on structural integrity of the liners can be quantified. 

The styrene-free SAERTEX-LINER ENVIRONMENT was the first GRP liner with styrene-free VE resin on the market to be approved by DIBt. This improves the range of products offered by SAERTEX multiCom for the trenchless rehabilitation of wastewater pipes, especially for applications where it is important to avoid the typical odor of styrene.