Forskning

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At fjellvann er lagt i rør, gjør at vi går glipp av fossefall sin naturlige evne til å rense vann. Fossefall skaper en reaksjon i vannet som gjør at vannmolekylene løser seg opp, og bakterier som encellede organismer dør. Uten fossefall klumper vannmolekylene seg, noe som gir grobunn for mange encellede organismer.
I vannverk benyttes UV- stråling for rensing av drikkevann. Det er imidlertid kjent, at UV stråling ikke når frem til alle bakterier ved høy forekomst av humus/høye fargetall.

(Aftenposten 24.04.10)

Vannets videre reisevei gir ytterligere bekymringer når gamle vannrør sprekker, lekker og gir avleiring. Tiltak som myndighetene iverksetter ved akutte kriser, er å be innbyggerne om å koke drikkevannet. Det kan særlig være utfordrende for næringsvirksomhet og helsesektor.
Norsk vann anslår i en rapport fra 2017 at våre drikkevanns- områder har et investeringsbehov på 160 milliarder kroner i perioden 2016-2040.
(Kilde: rapport fra norsk vann fra 2017 for perioden 2016- 2040.
Klikk her for å se rapport

Dette viser at det er av betydning hvordan vi i fremtiden videreutvikler våre naturressurser som samtidig ivaretar miljøet, vår helse og for effektiv utnyttelse av kapital.
(Kilde: Forvaltning av vårt drikkevann)

DabV-produkt

Gjennom vår nyutviklede teknologi, DabV- enheter som lett monteres på vannrør/vannkran, kan du selv, enkelt og effektivt være med på å iverksette tiltak for å rense ditt drikkevann.

Rensing av vann med høye humus-verdier (fargetall) er ikke til hinder ved bruk av vår nyutviklede teknologi DabV. Selv ved fargetall på 56 reduseres bakterienivå med 100%.

Du kan også kjenne forskjell på smak. Nyt Det aller beste Vann.

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BIOLOGICAL INFORMATION

The effect of DabV is positive for higher (eukaryotic) organisms (humans, animals, fish and plants), whereas it removed simple unicell (prokaryotic) organisms such as E. coli, coliform and intestinal enterococci.

DABV KILLS BACTERIA EVEN AT COLOR NUMBERS HIGHER THAN 20-25

Below are results from experiments on the effects of DabV installed at a private waterworks that uses UV filter for disinfection. The waterwork supply approximately 140 households located near Bergen. One DabV unit has been installed in each of the places where water enters: in the pump housing after the UV system (to access the tap and cover both branch pipes out of the pump housing) and after the height pool.

The DabV-600 units were installed in August 2020 and over a period of 7 months the municipality took samples of both the untreated raw water (surface water) and in the pump house after the water had been through a UV system. The water that entered the water plant, where DabV was mounted in addition to the UV filtering, high colour number, reflecting high amount of organic material. Whereas it is known that UV filter is not effective in killing bacteria at higher colour number (above 20-25), with the addition of the DavB unit, the bacteria was removed even at high colour number. At the destination, at an outdoor tab and in a senior centre, thus after pasting through the pipes, most samples showed satisfied results, whereas a few samples had high bacteria content, reflecting leaking from the ground into the pipes after the DabV unit.

In summary, the results shows that DabV is effective in killing bacteria even at high colour number. Due to leakage through the pipes, which is a major challenge worldwide, it is recommended to place a DabV unit also at the destinations in addition to a unit placed central in the waterworks.

More about biology can be read here: https://bio-consult.net

Table 1. Results of experiments on the effects of adding DabV in a water plant in Bergen that use UV disinfection, supplying approximately 140 households. The DabV unit is placed before UV filtering, and observations on colour (Col), Coliform bacteria (Colif), Escherichia coli (E. coli), and Enterococcus (Ent), were taken before disinfection (1), immediately after the disinfection (2) and at two end positions (3,4). (3) is in an outdoor water tap and (4) is in an elder centre.

*) MPN is a statistical method used to estimate the viable numbers of bacteria in a sample by inoculating broth in 10-fold dilutions and is based on the principle of extinction dilution

  1. a) EUNOBE-00042149, b) EUNOBE-00042757, c) EUNOBE-00043349, d) EUNOBE-00043946, e) EUNOBE-00044748, f) EUNOBE-00045097,  g) EUNOBE-00045637, h) EUNOBE-00046264

References:

  • Aoustin et al. 2001. Ultrafiltration of natural organic matter. Sep. Purif. Technol., 22–23: 63-78.
  • Basu et al. 2007, UV disinfection of treated wastewater effluent. influence of color, reactivation and regrowth of coliform bacteria. Environment Engineer. Applied Res and Practice. 4
  • Favere et al. 2021. Safeguarding the microbial water quality from source to tap. npj Clean Water, 4,28.
  • Giannakopoulos and Suresh 1999. Theory of indentation of piezoelectric materials. Acta Material 47, 7, 2153-2164.
  • Prest et al. 2016, Biological Stability of Drinking Water: Controlling Factors, Methods, and Challenges. Review article, Front. Microbiol, 7, Article 45
  • Sillanpää et al. 2018. Removal of natural organic matter in drinking water treatment by coagulation: A comprehensive review, Chemosphere, 190, 54-71.
  • World Health Organization 2017. Guidelines for drinking-water quality: fourth edition incorporating first addendum, 4th ed + 1st add. World Health Organization. https://apps.who.int/iris/handle/10665/254637. License: CC BY-NC-SA 3.0 IGO

 

DabV behandling av vannet ditt er en av de enkleste og sikreste metodene for å unngå uønskede bakterier og parasitter i vannet. Nøye undersøkelser i laboratorium viser at du blir kvitt den skadelige bakterien E. coli — Escherichia coli når du fester en DabV på vannrørene dine.

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