METHOD OF PRODUCING PEAT-BASED REAGENT FOR TREATING INDUSTRIAL WATER Russian patent published in 2014 - IPC C02F1/62 C02F1/42 B01J20/24 A62D3/30 

FIELD: chemistry.

SUBSTANCE: invention relates to treatment of industrial waste water or recycling water with weakly alkaline reaction of heavy metal ions through conversion thereof into partially water-soluble compounds whose mobility in natural media is strongly limited, and specifically to production of reagents for treating said water based on peat. The method involves crushing and grinding peat, diluting the ground peat with water, mechanically activating the obtained mixture by adding an alkali solution, subjecting to intense mechanical action and neutralising the obtained reagent with an acid. The reagent is produced using peat with natural moisture content, crushing and grinding of which is carried out while mixing said peat with water. Alkaline extraction and activation are carried out simultaneously by directly adding alkali to the activator, and the obtained product is treated with oxalic acid until full neutralisation of the obtained reagent. The water used to dilute the mixture, acid and alkali is not heated. The disclosed technique of producing the reagent is easy to implement, does not require large capital investments and is completely wasteless.

EFFECT: reagent is effective in removing heavy metals from industrial water.

2 cl, 1 tbl, 1 ex