Regeneration and purification of wastewater and fertilization for agricultural irrigation (Machine-translation by Google Translate, not legally binding)

摘要

Regeneration and purification of wastewater and fertilization for agricultural irrigation, is an invention that consists of a purification of wastewater containing heavy metals by means of. The introduction of wastewater in (1) the ammonia addition tank where hydrated oxides of mg, cr, mn, fe and hg precipitate. (2) precipitate filter of this step. (3) recovery of precipitates from the previous filter. (4) filter of iron filings, reduction of metals ni, cu, ar, cd and pb precipitating these. (5) collection of precipitates from the iron filings filter. (6) flocculation tank, recovery of ammonia -nh3 -. (7) ammonia recirculation -nh3 - taking it to the beginning of the process. (8) neutralization tank, by adding potassium hydroxide -koh-. (9) acidification by carbon dioxide -co2 -. (10) ozonator. (11) diatomaceous filter, leaving water suitable for irrigation. (12) recovery of precipitates, resulting neutralization. (13) recovery of precipitates formed after the addition of carbon dioxide -co2 -. (Machine-translation by Google Translate, not legally binding)