Process for treating waste mother liquid of H acid in dye factory

Process for treating waste mother liquid of H acid in dye factory

A process for reclaiming the waste mother liquid of H acid from dye factory includes such steps as recovering sodium sulfate from said waste mother liquid, preparing water-coal slurry from coal and residual waste mother liquid in weight ratio of (1-2):(1-8) and adding lime stone to regulate its pH v...

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Hauptverfasser: KAIZHEN WU, BAOQING XIAO
Format: Patent
Sprache:eng
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CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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BAOQING XIAO
description A process for reclaiming the waste mother liquid of H acid from dye factory includes such steps as recovering sodium sulfate from said waste mother liquid, preparing water-coal slurry from coal and residual waste mother liquid in weight ratio of (1-2):(1-8) and adding lime stone to regulate its pH value greater than or equal to 7. The resultant water-coal slurry can be used as part or all of the fuel of boiler. Its advantages include less investment, low cost and high safety and feasibility.
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TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Process for treating waste mother liquid of H acid in dye factory
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