FIELD: chemistry.
SUBSTANCE: method involves steps for homogenising the filtrate, alkaline treatment of the filtrate with lime with subsequent reagent normalisation of pH of the filtrate using aqueous spent etching solutions from metal-processing factories which contain FeCl2 or FeSO4 with concentration of 17-25 wt %, with specific consumption of 1.0-5.0 mg/l of filtrate, bubbling the filtrate, blowing ammonia and biogenous compounds and electroflotocoagulation of the filtrate, after which the cleaned filtrate is taken to an evaporation pond.
EFFECT: higher environmental safety with high degree of purification of complex multi-component effluents, reduced treatment costs.
3 tbl, 2 ex
| Title | Year | Author | Number |
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| METHOD TO RECYCLE FILTRATE OF SOLID DOMESTIC WASTE AND ASH LANDFILL | 2010 |
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| METHOD FOR PURIFYING DRAIN WATER OF SOLID DOMESTIC WASTE POLYGONS | 2000 |
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