The effect of dehydration and dehydration of magnesium hydroxide and magnesium oxide and magnesium oxide.Under certain conditions, magnesium hydroxide is mixed with mixing in industrial wastewater and forming ammonium phosphate magnesium, thereby removing phosphate and ammonium, and the generated sediments can be recovered as fertilizer after filtering and separation.
An analysis of the process for Magnesium hydroxide the phosphorus-containing nutrients in the anaerobic sludge revealed that:
(a) adding 200-400 MGL Magnesium hydroxide to the feed containing 50-60 MGL po3-4-p. The removal rates of phosphorus were between 84% and 93% for both reagent grade Magnesium hydroxide and recycled Magnesium hydroxide.
(b) the Magnesium hydroxide can speed up the digestion process of the anaerobic slurry. In the improved digesters, the volatile suspended solids, soluble COD, total COD and total suspended solids (SS) have been significantly reduced.
(c) the Magnesium hydroxide has the effect of improving the filtration performance of the digestion mud.
(d) the removal of phosphorus from anaerobic mud by Magnesium hydroxide is effective.
(E) from the point of view of reducing treatment cost, the treatment agent is to use the recovery Magnesium hydroxide obtained from the flue gas dephosphorization operation of a thermal power plant; Magnesium oxide has potential application value and bright prospect.