TREATMENT FOR THE SETTING OF PRE-TREATED WATERS OF THE CHEESE INDUSTRY IN ARTIFICIAL HUMID ZONES PLANTED WITH ZIZANIOID VETIVERIA

摘要

The present invention relates to a process for setting in an arsenic wet zone (ZHA) of cheesy effluents, pretreated by basic chemical precipitation and neuritisation through carbonation (atmospheric, industrial, industrial) or acid ( 1). ZHA IS PLANTED WITH ZIZANIOID VEINS (5) IN EXTENDED CLAY AGGREGATES (LECA® NR 10-20) (4) AND CONTINUOUS MODE (2), (3) WITH VERTICAL SUBSUPERICAL FLOW (6). THE HEIGHT OF THE ZHA OF 35-70 CM, INCLUDING 2% (8) AND 10% FLOOD RATE. THIS PROCESS ALLOWS THESE EFFLUENTS TO BE TAKEN IN A LOW HYDRAULIC RETENTION TIME, FROM THE 4 HOUR ORDER, AND WITH USE OF MECHANICAL ORGANIC LOADS AND COD CONCENTRATION UP TO 206 GM-2D-1 AND 1690 MGO2L-1, RESPECTIVELY, NO RESOURCE TO CHEMICAL REAGENTS AND WITHOUT PRODUCTION OF LAMAS.