VERFAHREN ZUR GUELLE-ENTSORGUNG

摘要

The process is characterised in that the urea in the liquid manure is enzymatically hydrolysed, a mechanical preclarification, if required, is carried out before or after the hydrolysis, the suspended and colloidally dissolved constituents in the liquid manure are, if required, flocculated and/or precipitated using inorganic or organic electrolytes or polyelectrolytes or mixtures thereof, the flocculated or precipitated colloids and solids from the liquid manure, if required, are separated off by flotation with subsequent mechanical separation of the flotate, the ammonia dissolved in the liquid manure is removed therefrom by degassing, a residual liquid manure being obtained, a further mechanical clarification of the residual liquid manure is carried if required, a neutralisation of the residual liquid manure is carried out if required and the residual liquid manure which is obtained from stage 5, 6 or 7 is applied to a trickling filter or is disposed of separately by aerobic bacteria or is fed to the denitrification stage of a sewage treatment plant or is divided by electrodialysis into a concentrate and a diluate, the concentrate being fed to the denitrification stage of a sewage treatment plant.