Our glossary explains technical terms from the area water research. We hope it facilitates the understanding of this publication. If you have comments or suggestions, please use our
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UASB – upflow anaerobic sludge blanket
UASB is a continuous process involving the constant flow of wastewater and sludge through the reactor. The system employs a counterflow configuration with the wastewater supplied at the bottom of the reactor. The special structure of the reactor well comprises a sludge bed (anaerobic reaction zone), gas/solid separator and sedimentation chamber.
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Ultra-filtration
See: Micro-filtration.
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Untreated water
Water before it has been purified or cleaned, e.g. to produce drinking water.
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Urine water
Urine from separation toilets and urinals, with or without flush water.
