METHOD AND SYSTEM OF DESTRUCTION OF VOLATILE COMPOUNDS IN WASTEWATER
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Abstract
The invention proposes a method of destruction of volatile organic and inorganic compounds in wastewater, this method includes following stages: stripping the aforementioned volatile compounds in a stripping-chemisorption column; preliminary heating the gaseous medium containing these volatile compounds in a first heat regenerator; thermal, flare or thermo-catalytic oxidation of the volatile compounds in circulating gaseous medium; cooling the gaseous medium in a second heat regenerator; chemisorption of acidic gases from the gaseous medium in the stripping-chemisorption column with stripping at the same time additional amount of the volatile compounds from the wastewater. After specific period, direction of the gaseous medium flow is alternated. The proposed method can be executed at elevated temperature. The invention includes as well systems realizing the proposed method.
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Citations
49 Claims
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1-16. -16. (canceled)
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17. A system for processing water contaminated with volatile compounds, comprising:
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a stripping unit including a first inlet for contaminated water, a second inlet for a circulating gaseous medium, and an outlet; wherein the stripping unit is operative to strip volatile compounds from the contaminated water and into said circulating gaseous medium, and for extraction of oxidation products from said circulating gaseous medium; an oxidation unit having an inlet coupled to said stripping unit outlet, to oxidize the volatile compounds in said circulating gaseous medium, and to form oxidation products in said circulating gaseous medium; an outlet from the oxidation unit for the oxidation product-carrying gaseous medium coupled to the second inlet of said stripping unit; and a heat regeneration system to preheat said volatile compound-containing circulating gaseous medium entering said oxidation unit from said stripping unit, and to cool the oxidation product-carrying gaseous medium exiting the oxidation unit. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method of processing water contaminated with volatile organic and inorganic compounds, the method comprising:
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delivering the contaminated water and a circulating gaseous medium to a stripping unit; stripping the volatile compounds from the contaminated water and into the circulating gaseous medium; oxidizing the volatile compounds in said circulating gaseous medium, the resulting oxidation products being carried in said circulating gaseous medium; preheating said circulating gaseous medium before oxidation of the volatile compounds; cooling said oxidation product-carrying circulating gaseous medium, said preheating and cooling being performed in a heat regeneration system; and removing said oxidation products carried in said circulating gaseous medium in said stripping unit. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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Specification