TEKNISKA MÖJLIGHETER ATT FÖRBÄTTRA VÅRA VA-SYSTEM / Technical Possibilities to Improve Our Water Supply and Sewerage Systems
The paper describes the technical improvements which can be effected in our existing water supply and sewerage networks in order to secure the present function demands regarding public health and environment. A substantial development work has been accomplished in this field during the later years and ongoing R&D projects are described. At present there are methods available for computer modelling of networks and for inspection and renovation of them. The trenchless excavation (“No-Dig”) has developed economically feasible tools for working in the networks with a minimum of disturbances for the street environment. On-going development projects include control of quality in water supply networks as well as the coordination of networks and treatment, i.a. using computer models for wastewater treatment. An important task ahead would be to establish regulatory levels for the function demands in networks, esp. for the sewerage.