Beskrivelse

MEMBIO brings together three research institutions, two waterworks and two
companies to develop much-needed water treatment biotechnologies for removing
pesticides and chlorinated solvents from contaminated drinking water resources.
The idea is to combine membrane separation and microbial degradation in sand
filters as a new technology to remediate polluted drinking water. The membrane
filtration produces clean drinking water, but also residual water with high pollutant
concentrations. This residual water will then be treated in a biological filter added
specific pesticide degrading bacteria, including the BAM degrading Aminobacter sp.
MSH1 and the phenoxy acid herbicide degrading Pseudonmonas sp. PM1. The
membranes will be designed to also concentrate nutrients, thereby stimulating
degrading bacteria in the sand filter. Native ammonium oxidizing bacteria in the
filter will also be stimulated as these bacteria are known to degrade chlorinated
solvents. Specific aims of MEMBIO include to 1) optimize the membrane technology
to produce low volumes of highly concentrated residual water, 2) compare the
efficiency of the membrane technology to treat groundwater of different
geochemical origin, 3) design membranes to produce concentrated water with an
optimal combination of nutrients (N, P and organic C) providing the best conditions for biodegradation, 4) optimize the survival of introduced degrader bacteria and improve their degradation efficiency, 5) combine new ecological approaches with state-of- the-art molecular techniques to predict ecosystem function and its ability to accept the introduction of a new degrader bacterium, and to test how we can manage and steer the microbial communities to most efficiently degrade the contaminants, 6) determine key factors controlling degrader bacteria adhesion and to select sand filter materials securing long-lasting adhesion and survival of the bacteria, and 7) transfer the developed technologies from laboratory scale experiments to large scale demonstration (Proof of Principle).
MEMBIO will bring considerable advances to water treatment biotechnology and
enhance Danish know-how about membrane technologies and bioremediation. The main outcome will be prototype systems for commercialisation in a number of highly relevant water treatment scenarios, including existing sand filters at
waterworks and mobile systems to be placed close to groundwater abstraction
wells.

Lægmandssprog

Rent drikkevand er en begrænset ressource både i Danmark og globalt. I Danmark
får vi alt vores drikkevand fra grundvand, men det er en ressource, der er truet af
forurening med blandt andet pesticider og klorerede opløsningsmidler. Der er
derfor et stort behov for udvikling af nye teknologier til oprensning af forurenet
drikkevand. MEMBIO vil udvikle økonomisk og miljømæssigt bæredygtige
teknologier, der kan rense drikkevand forurenet med pesticider og klorerede
opløsningsmidler, uden at der akkumuleres uønskede nedbrydningsprodukter. Ved teknologien vil membranfiltrering og biologisk oprensning blive kombineret på en helt ny måde, der vil fjerne al forureningen fra vandet. Membranfilteringen fjerner først forureningen fra vandetstrømmen, men derved skabes også store mængder restvand med koncentreret forurening. Dette restvand vil efterfølgende blive renset i et biologisk filter, således at vandet kommer til at overholde kvalitetskriterierne for drikkevand. Membranfilteringen vil blive optimeret, således at også nærringsstoffer koncentreres i restvandet for på den måde at stimulere nedbryderbakterierne. Det biologiske filter vil blive tilsat specifikke pesticidnedbrydende bakterier og samtidig vil ammoniumoxiderende bakterier blive stimuleret, da disse er kendt for at kunne nedbryde klorerede opløsningsmidler. MEMBIO teknologien vil kunne udnyttes i alle lande, der anvender grundvand som drikkevand og efter yderligere udvikling også i lande der anvender overfladevand.
AkronymMEM2BIO
StatusIgangværende
Effektiv start/slut dato01/03/201631/12/2019

Samarbejdspartnere

  • Aalborg Universitet
  • Aarhus University, Department of Environmental Science
  • APPLIED BIOMIMETIC A/S
  • SILHORKO-EUROWATER A/S
  • TREFOR
  • Din Forsyning
  • GEUS
ID: 232623890