Flocculation-precipitation treatment method and equipment for waste paper deinking waste water

An intermittent or continuous flocculation-precipitation process for treating waste decolouring water generated during making pulp with used paper features use of aluminium sulfate (Al2(SO4)3) and poly aluminium chloride £Al2(OH)mCl6-m|n as flocculant. Its purifier designed specially is composed of...

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Bibliographic Details
Main Authors JIUZHONG CHEN, JINQUAN WAN, ZHONGHAO CHEN
Format Patent
LanguageEnglish
Published 21.02.2001
Edition7
Subjects
APPARATUS THEREFOR
CHEMISTRY
METALLURGY
PAPER-MAKING
PRODUCTION OF CELLULOSE
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
REGENERATION OF PULPING LIQUORS
TEXTILES
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:An intermittent or continuous flocculation-precipitation process for treating waste decolouring water generated during making pulp with used paper features use of aluminium sulfate (Al2(SO4)3) and poly aluminium chloride £Al2(OH)mCl6-m|n as flocculant. Its purifier designed specially is composed of nozzle, Venturi tube, internal and external cylindrical bodies, a pair of reaction areas consistingof horn skirt rings, fluidized clarifying area, mixed reflex area and dregs precipitation area. Its advantages are short stay period of waste water and high treating efficiency and effect.
Bibliography:Application Number: CN19971004281