PROCESS FOR CHEMICAL ELIMINATION OF NITRATE AND/OR NITRITE CONTENT OF WATERS

PROCESS FOR CHEMICAL ELIMINATION OF NITRATE AND/OR NITRITE CONTENT OF WATERS

The proposed method involves the addn. of a stoichiometric amt. of reducing chemical pref. hydrazine, and an inhibitor to prevent the formation of ammonia pref. hydrogen peroxide. After mixing in the reagents the pre-treated water is passed to a chemical reactor contg. a granular material having a l...

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Hauptverfasser: SOMLYODI,LASZLO,HU, KISS,JANOS,HU, BITSKEY,TIBOR,HU, JUHASZ,JOZSEF,HU, SZILAGYI,FERENC,HU, LICSKO,ISTVAN,HU
Format: Patent
Sprache:eng
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CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator SOMLYODI,LASZLO,HU
KISS,JANOS,HU
BITSKEY,TIBOR,HU
JUHASZ,JOZSEF,HU
SZILAGYI,FERENC,HU
LICSKO,ISTVAN,HU
description The proposed method involves the addn. of a stoichiometric amt. of reducing chemical pref. hydrazine, and an inhibitor to prevent the formation of ammonia pref. hydrogen peroxide. After mixing in the reagents the pre-treated water is passed to a chemical reactor contg. a granular material having a large surface area, pref. activated carbon. The purified water and the gaseous nitrogen liberated are removed. If necessary post-chlorination is carried out. - The method requires minimal capital investment, it has large clean-up capacity, and produces no waste prods. needing further treatment. The method can be carried out continuously or intermittently.
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subjects CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title PROCESS FOR CHEMICAL ELIMINATION OF NITRATE AND/OR NITRITE CONTENT OF WATERS
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