CN110104936A - The method of nano polyaluminium chloride processing fermented sludge - Google Patents

The method of nano polyaluminium chloride processing fermented sludge Download PDF

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Publication number
CN110104936A
CN110104936A CN201810088869.4A CN201810088869A CN110104936A CN 110104936 A CN110104936 A CN 110104936A CN 201810088869 A CN201810088869 A CN 201810088869A CN 110104936 A CN110104936 A CN 110104936A
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CN
China
Prior art keywords
sludge
polyaluminium chloride
moisture content
nano
nano polyaluminium
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Withdrawn
Application number
CN201810088869.4A
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Chinese (zh)
Inventor
刘玉环
潘东风
刘洋
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Liaoning Environmental Protection Technology Co Ltd
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Liaoning Environmental Protection Technology Co Ltd
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Priority to CN201810088869.4A priority Critical patent/CN110104936A/en
Publication of CN110104936A publication Critical patent/CN110104936A/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention belongs to a kind of methods of nano polyaluminium chloride processing fermented sludge.It is to be diluted to 95% dilution sludge using by the fermented sludge of moisture content 80%, it is diluted in sludge-tank in moisture content up to 95%, it is separately added into ferric trichloride, nano polyaluminium chloride and quick lime, sludge filter press is injected by high and low press pump, obtains moisture content mud cake below 60%.The present invention is suitable for the processing to the various fermented sludges in city, cheap using reagent cost, and process flow makes finished product moisture content of the cake 60% hereinafter, whole qualified discharges convenient for operation.

Description

The method of nano polyaluminium chloride processing fermented sludge
Technical field
The present invention relates to a kind of processing method of solid waste, especially a kind of nano polyaluminium chloride processing fermentation is dirty The method of mud.
Background technique
Municipal sewage plant generates the sludge of moisture content 80% at present, in the state of hot weather, does not obtain for a long time Processing in time, can occur the fermentation problem (being commonly called as dead mud) of sludge.Such fermented sludge is in sludge filter press treatment process It cannot handle completely.Main cause is to can not meet the requirement of sludge filter press treatment process route, therefore finished product can not be formed Mud cake is in fluidised form shape, causes finished product sludge that can not dispose, and forms secondary pollution to environment.The present invention to solve this problem, mentions A kind of method for having gone out nano polyaluminium chloride processing fermented sludge, is added aluminium polychloride in processing method, to fermentation shape State sludge carries out quenched modification, makes finished product moisture content of the cake 60% hereinafter, whole qualified discharges.
Summary of the invention
It is handled the object of the present invention is to provide a kind of using nano polyaluminium chloride processing fermented sludge, makes product mud Cake moisture content is 60% hereinafter, whole qualified discharges.
The purpose of the present invention is what is realized by following methods: the method that nano polyaluminium chloride handles fermented sludge is to adopt It is diluted to 95% dilution sludge with by the fermented sludge of moisture content 80%, is diluted in sludge-tank in moisture content up to 95%, is separately added into three Iron chloride, nano polyaluminium chloride and quick lime, by high and low press pump inject sludge filter press, obtain moisture content 60% with Lower mud cake.
When quenched to yeastiness sludge modified, after adding ferric trichloride by traditional handicraft, stir 15 minutes -20 minutes, Nano polyaluminium chloride is added, due to powerful charge neutrality and bridge formation ability, being quickly generated positive charge hydroxyl is in polymerization state, Huge absorption is generated to fermented sludge colloidal solid, cracks effect, makes fermented sludge colloidal solid broken wall, de- steady, generation flocculation Effect, and then formed and built bridge, i.e., fermented sludge colloidal solid is strapped on the micro- end active group of polymerizable molecular, is further formed The coarse wadding body of bridging shape promotes that water is combined to discharge, to create feasible condition for the high press-dehydrating of fermented sludge.
Profitable effect of the invention is:
The present invention is suitable for the processing to the various fermented sludges in city, cheap using reagent cost, and process flow makes convenient for operation Finished product moisture content of the cake is 60% hereinafter, whole qualified discharges.
Binding experiment makees with further instruction specific method of the present invention below.
Specific embodiment
The method of nano polyaluminium chloride processing fermented sludge is to be diluted to 95% using by the fermented sludge of moisture content 80% Sludge is diluted, is diluted in sludge-tank in moisture content up to 95%, is separately added into ferric trichloride, nano polyaluminium chloride and quick lime, passed through Excessively high, low-lift pump injects sludge filter press, obtains moisture content mud cake below 60%.
It is separately added into 5% ferric trichloride of wet mud amount in diluting tank fermented sludge, stirs 20 minutes, adds wet dirt The nano polyaluminium chloride of mud amount 1.5% -2% stirs 25 minutes, adds wet mud amount 6-10% lime water, stirs 140 points Clock after being sufficiently stirred, injects sludge filter press through low pressure, high-pressure pump respectively, filters pressing 180 minutes -210 minutes, mud cake is discharged.

Claims (4)

1. the method for nano polyaluminium chloride processing fermented sludge, it is characterised in that: the fermented sludge of moisture content 80% to be diluted to 95% dilution sludge, dilutes in sludge-tank in moisture content up to 95%, is separately added into ferric trichloride, nano polyaluminium chloride and raw stone Ash is handled by sludge filter press, obtains moisture content mud cake below 60%.
2. by the method for the processing fermented sludge of nano polyaluminium chloride described in claim 1, it is characterised in that: wet dirt is added 5% ferric trichloride of mud amount stirs 20 minutes.
3. by the method for the processing fermented sludge of nano polyaluminium chloride described in claim 1, it is characterised in that: wet dirt is added The nano polyaluminium chloride of mud amount 1.5% -2% stirs 25 minutes.
4. by the method for the processing fermented sludge of nano polyaluminium chloride described in claim 1, it is characterised in that: wet dirt is added Mud amount 6-10% lime water stirs 140 minutes.
CN201810088869.4A 2018-01-30 2018-01-30 The method of nano polyaluminium chloride processing fermented sludge Withdrawn CN110104936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810088869.4A CN110104936A (en) 2018-01-30 2018-01-30 The method of nano polyaluminium chloride processing fermented sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810088869.4A CN110104936A (en) 2018-01-30 2018-01-30 The method of nano polyaluminium chloride processing fermented sludge

Publications (1)

Publication Number Publication Date
CN110104936A true CN110104936A (en) 2019-08-09

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Family Applications (1)

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CN201810088869.4A Withdrawn CN110104936A (en) 2018-01-30 2018-01-30 The method of nano polyaluminium chloride processing fermented sludge

Country Status (1)

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CN (1) CN110104936A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110372175A (en) * 2019-08-30 2019-10-25 重庆艾克洛环保科技有限公司 A kind of sludge conditioner and sludge drying processing method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110372175A (en) * 2019-08-30 2019-10-25 重庆艾克洛环保科技有限公司 A kind of sludge conditioner and sludge drying processing method

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