Landfill leachate pretreatment process

Landfill leachate pretreatment process

The invention discloses a landfill leachate pretreatment process in which the landfill leachate is pretreated by adopting the following pretreatment device. The pretreatment device comprises a coagulation unit and a filter pressing unit, wherein the coagulation unit comprises an oxidation reaction c...

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Hauptverfasser: CHEN WEIPENG, QIN LIANSONG, WEN LIANHE, FANG YIMIN, CHEN FUDA, HUANG XINQIN
Format: Patent
Sprache:chi ; eng
Schlagworte:
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator CHEN WEIPENG
QIN LIANSONG
WEN LIANHE
FANG YIMIN
CHEN FUDA
HUANG XINQIN
description The invention discloses a landfill leachate pretreatment process in which the landfill leachate is pretreated by adopting the following pretreatment device. The pretreatment device comprises a coagulation unit and a filter pressing unit, wherein the coagulation unit comprises an oxidation reaction chamber, a lime reaction chamber, a sodium hydroxide reaction chamber and a sodium carbonate reaction chamber which are communicated in sequence; the filter pressing unit comprises at least two filter presses, the filter presses are communicated with the sodium carbonate reaction chamber; landfill leachate enters the oxidation reaction chamber, the lime reaction chamber, the sodium hydroxide reaction chamber and the sodium carbonate reaction chamber in sequence for reaction and then enters the filter pressing unit, and the filter presses are fed in sequence, circulating in this way, only one filter press is used for feeding each time, and the obtained press filtrate is the pretreated leachate. According to the landf
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subjects CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Landfill leachate pretreatment process
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