Några anmärkningar om jordbruksbevattning med hjälp av avloppsvatten med utgångspunkt från Källby avloppsreningsverk
A historical review of the driving forces behind use of wastewater for irrigation for agriculture in Sweden is presented, starting with a detailed description of the work done at the wastewater treatment plant Käll-by in the city of Lund, south Sweden. Different initiatives have been taken to reduce water shortage in agriculture during the years. The background to the work done at Källby was the import stop of fertilizers in Sweden during the second world war which increased the need for utilizing nutrients in wastewater in agriculture. A system for using treated wastewater for crop irrigation was developed in Lund and lasted 1942 –1950. When the fertilizer trade opened after 1945, the interest to use wastewater decreased and the engaged farmers left the project successively. During periods of drought after 1945, farmers in Sweden have had varying interest for reusing treated wastewater, which typically have ended when the droughts end. The unclear responsibility between municipalities and farmers decreases the perseverance.