Novel iron-manganese pollution automatic monitoring and accurate controlling process

Abstract

The invention provides a novel iron-manganese pollution automatic monitoring and accurate controlling process. The process is characterized by including following steps: utilizing an automatic reagent feeding system to adjust pH value and oxidize iron-manganese ions; using a manganese sand filter material to remove remaining iron-manganese ions and part of iron-manganese solid-state substances; using a quartz sand filter material to remove water turbidity and suspended substances. Automatic feeding of sodium hydroxide and potassium permanganate is utilized to adjust the pH value and oxidize the iron-manganese ions, and low-valence-state iron-manganese is oxidized into high-valence-state iron-manganese; then through the manganese sand filter material, the iron-manganese irons which are not removed thoroughly are further adsorbed and oxidized, and a part of solid-stage iron-manganese can be intercepted; finally through the quartz sand filter material, the water turbidity and the suspended substances are further removed. The process is high in automation level and convenient to manage.

Description

technical field [0001] The invention relates to the application field of water treatment technology, in particular to a combined process that can deal with iron and manganese pollution and can automatically control precise reaction parameters according to the content of iron and manganese in influent. Background technique [0002] Iron and manganese metal elements are common in rocks and soils in nature. The excess of iron and manganese in surface water mainly occurs in water plants that use large reservoirs as water sources, mostly due to geological pollution. Excessive iron in groundwater and surface water originally existed in a low-priced form, but because the contact between surface water and air increased the dissolved oxygen content in the water, and low-priced iron was easily oxidized, thus forming sediment in the water body, so the iron in surface water Easier to remove. However, the low-priced manganese in surface water (reservoir water) exists mostly in the form...

AI Technical Summary

Problems solved by technology

In the process of removing iron and manganese by chemical agents, there are several technical difficulties: it is difficult to control the dosage of oxidant; it is difficult to control the quality of effluent water (problem of excessive dosage of oxidant, etc.);

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