Biogas treatment plant - Gas supply utility Liechtenstein
The biogas of the wastewater treatment plant shall conditioned to be fed as biomethane into the local gas networks. The treatment method should provide the possibility to feed in the biomethane both into the low-pressure as well as into the medium pressure network. The chosen treatment process (amine scrubbing) allows as well for an improvement in the heat balance of the wastewater treatment plant as for meeting the feed-in requirements. For optimum use of...[more]
Field tests of ecomorphology in Canton Grison
The Agency for Nature and Environment of the Canton Grisons engaged HOLINGER to survey and assess selected water courses according to the documentation of the BUWAL (Federal Office for the Environment FOEN) - Ecomorphology Level F (1998). In a first phase, HOLINGER collected ecomorphology data in the Upper Rhine Valley and the Misox in autumn 2011. In summer 2012, the data of the catchment areas Hinterrhein and Albula were included (a total of 450 km). In the 4th...[more]
Replacement and new construction of spring water pumping station
The spring water pumping station Dachsberg was created around 1898. In the wake of the heavy rains in July 2009, the spring water has been tarnished in the reservoir chambers by penetrating surface or slope water. The renovation includes the construction of a well house with a stainless steel inner liner. This is moved into one of the existing water chambers.[more]
Limmat Auenpark Werdhölzli, Zurich
On behalf of the Building Department of the Canton of Zurich, represented by the AWEL, the consortium ARGE AUENPARK led by HOLINGER works on the flood control project Limmat Auenpark Werdhölzli. The final design project is in elaboration since May 2011 and expected to be completed by summer 2013. Between the dam Höngg and the highway bridge A1, extensive restoration measures, such as new flat shores, gravel islands, breakwaters and a large footbridge will be...[more]
Channel reopening in a densely populated residential area
The village brook in the town of Therwil (Canton of Basel-Landschaft) has a HQ100 outflow of 8 m3/s. But in the culverted section of the Hinterweg, there is only a discharge capacity of 3.5 m3/s. After elaborating the preliminary design and carrying out the economic assessment, HOLINGER has now been entrusted with the preparation of the construction and final design project. The planned channel reopening will lead to a complete transformation of the Hinterweg which...[more]
stephan.kuenzler(at)holinger.com