METHOD FOR TREATING EUTROPHIC WATER BY USING NITRIC ACID AND FORMIC ACID

摘要

A method for treating eutrophic water by using nitric acid and formic acid is provided. In order to treat eutrophic water and solve the problem of periodic outbreak of blue algae caused by eutrophic water, the nitric acid and the formic acid are added into the eutrophication water and/or the nitric acid is added into sediment interface of the eutrophic water with depth of 10-50 cm, wherein the water exchange is slow, the exogenous phosphorus pollution is controlled effectively while the endogenous phosphorus pollution is serious. The acid process in the water and the sediment improves the oxidation-reduction condition of the water-sediment interface, reduces the content of phosphorus in the water and the release strength of the sediment phosphorus, and further reduces the strength and frequency of outbreak of the blue algae and finally eliminates the outbreak condition of blue algae.