Closing the water loop in a maltery: reuse tests at pilot-scale.
This paper reports on the potential for water reuse in the malting sector. Core unit of a treatment train to close the water loop was a membrane bioreactor (MBR). We compared three different commercial submerged membranes for their fouling potential in this application and related this to the presence of extracellular polymeric substances (EPS). In a second step, we subjected MBR permeate to reverse osmosis and several (advanced) oxidation processes to evaluate the water quality achieved. Finally we performed a set of water reuse tests with waters obtained through different scenarios. The optimal scenario was then tested in a closed water loop over several malting cycles at pilot scale and the effect on water and malt quality was investigated.
De Wever
H
H
VITO, Environmental Technology, Boeretang 200, B-2400 Mol, Belgium. heleen.dewever@vito.be
Boënne
W
W
Danau
M
M
Vanderspiegel
N
N
Hardy
K
K
Limbos
J
J
D019149:Bioreactors; D007220:Industrial Waste; D008567:Membranes, Artificial; D009995:Osmosis; D010865:Pilot Projects; D014865:Waste Disposal, Fluid / Q000379:methods; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods
D007220:Industrial Waste; D008567:Membranes, Artificial