This liquid requires further treatment as it is high in nitrogen and phosphorus, particularly if the sludge has been anaerobically digested. The treatment can take place in the sewage treatment plant itself (by recycling the liquid to the start of the treatment process) or as a separate process.
verb (used with object), abrogated, abrogating. 1. to abolish by formal or official means; annul by an authoritative act; repeal: to abrogate a law. 2. to put aside; put an end to. Origin of abrogate. Latin.
Ab Initio Definition: Latin: from the start; from the beginning. A proposition in law that as within a court's jurisdiction, a certain document which purports to affect legal rights, or an act which purports to affect legal rights, is or was nul and void from the start, from its beginning, because of some vitiating element.