Process for treating water with high content of iron and manganese

Abstract

The invention relates to a process for treating water with high content of iron and manganese, which is characterized by adopting the aeration and natural oxidation method and a hydrocyclone device to remove iron and manganese. When the content of the iron in the ground water is more than 15mg / L, the process for treating water with high content of iron and manganese comprises the following concrete steps: making the ground water enter a primary oxygenated water tank to be aerated and oxidized, making the aerated and oxidized ground water enter a static tube mixer, adding flocculant to the static tube mixer by using a first drug adding device, making the water mixed with the flocculant enter a mechanical flocculation tank, adding lime solution to the mechanical flocculation tank from a first inlet of the mechanical flocculation tank by using a second drug adding device, making the water treated by the mechanical flocculation tank enter an iron removing filter, making the water flowing out of the iron removing filter enter a secondary oxygenated water tank, making the water flowing out of the secondary oxygenated water tank enter a manganese removing filter to move the residual iron and exceeding manganese, making the water flowing out of the manganese removing filter flow into a clear water pool, and lifting the water into a water pipe network by using a pump. Each liter of the water treated by adopting the process contains the iron of 0.3 mg or less and the manganese of 0.1 mg or less, and the quality of the water meets the quality of inlet water of a chemical water treatment system in the power plant.

Description

technical field [0001] The invention relates to the technical field of groundwater treatment, in particular to a process for treating water with high iron and manganese content. Background technique [0002] In some areas in Northeast China and eastern Inner Mongolia, groundwater contains relatively high levels of iron and manganese. In power plant engineering design, for groundwater with high iron and manganese content, such as manganese content in 1.0-1.6mg / L, iron content in 10-23mg / L, SiO 2 The water quality with a content of 20-35mg / L cannot meet the water quality requirements of the power plant chemical water treatment system by using the conventional contact oxidation filtration method. Especially the water treatment process of groundwater with high iron and manganese content is a difficult subject. Contents of the invention [0003] The purpose of the present invention is to provide a high iron and manganese water treatment process. [0004] The purpose of the p...

AI Technical Summary

Problems solved by technology

In power plant engineering design, for groundwater with high iron and manganese content, such as manganese content in 1.0-1.6mg / L, iron content in 10-23mg / L, SiO 2 The water quality with a content of 20-35mg / L cannot meet the water quality requirements of the power plant chemical water treatment system by using the conventional contact oxidation filtration method.

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