Renseeffektivitet og hygieniseringsforhold i et gråvannrenseanlegg

Worldwide there are many of both to mat and groundwater bodies that were affected by several serious pollution sources. Moreover, some of these bodies of water used for drinking source. One of biggest sources of these pollutants are untreated waste water, which comes either in direct contact with the water bodies through the discharge of untreated waste water via the overflow to centralized wastewater treatment are sent to these water bodies. Or by indirect emissions through leaks in the sewer network that infiltrated into groundwater and further to the nearest surface water. A local wastewater management could be the key to achieving the best results in terms of economic issues related to water transport and water treatment in the central facilities, and ecological issues associated with line leaks and overflow events. In order to get this in place, you have to separate the sewage into two fractions, namely black water (toilet water) and gray water (not toilet faction). In this way one can easily treat both fractions in that black water accumulates and then sediments into a septic tank. While gray water can be processed for example in a mini purification plant. This study focuses on testing a gray water treatment plants both in terms of purifying efficiency with respect to water quality parameters (TSS, total phosphorus, COD, BOD) and hygienisation of greywater relative to microbial microorganisms (viruses and bacteria). In the test period it was used two model organism a virus baktriofag Salmonella typhimurium phage 28b as a model for the enteric viruses and bacteria total coliform (including E. coli) as an indicator of sewage-related bacteria and other living organisms. Construction at test-period proved to be effective against the removal / inactivation of total koliforme- and E. coli with 1,7log10 and the other water quality parameters (TSS, total phosphorus, COD, BOD). While it was not registered any cleaning effect against viruses baktriofag Salmonella typhimurium phage 28b.