| 摘要 |
The invention relates to the water treatment, industrial and domestic wastewater, particularly to the multistage treatment with the use of baromembranous processes in combination with electrochemical, chemical and thermal treatment, and can be used for the purification of high-mineralized wastewater with the high content of ammonium compounds and organic substances. The problem – increasing of purification degree from ammonium by its high content, load dropping to membrane and the simplification of purification process scheme of ammonium-containing wastewater, the preparation of complex mineral fertilizer. For the realization of the assigned problem the process has been proposed, consisting in electrochemical treatment, in two-stage reactant treatment, on the first stage – by coagulation, on the second – by complex agent based on magnesium oxide and orthophosphoric acid, besides the sludge of the second stage is separated and dehydrated, and the obtained water is directed to baromembranous afterpurification. The realization of the proposed process provides deep purification from ammonium compounds, residual content of which allows their discharge to the sewage collector, and allows obtaining complex mineral fertilizer. |
