Chemistry:Effluent spreading
From HandWiki
Effluent spreading is a process in which a slurry of effluent from a dairy farm's milking parlor is pumped and spread on pasture. Commonly a rotating sprinkler is used. Dairy manure contains ammonium NH4-N. In New Zealand the application of effluent is a permitted activity, although spreading in excess is an environmental hazard.
Original source: https://en.wikipedia.org/wiki/Effluent spreading.
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