A method for the treatment of nitrogen - and / or phosphorus - and / or organic substances - and / or heavy metals enhaltendem waste water

摘要

The invention concerns a method for treating an effluent (A) containing in particular nitrogen and/or phosphorus and/or organic matter and/or heavy metals. The invention is characterised in that it consists in: adding a base (B) so as in particular to volatilize part of the ammonia nitrogen in the form of gaseous ammonia and/or precipitate at least part of the organic matter; in subjecting the resulting mixture of effluent and base (A + B) to electroflocculation and in separating the flocs (F) formed during electroflocculation and the sludge (E) possibly present in the liquid phase (D) which constitutes the purified effluent.