CN110526550A - A kind of deep dehydration medicament for solid phase sludge - Google Patents
A kind of deep dehydration medicament for solid phase sludge Download PDFInfo
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- CN110526550A CN110526550A CN201910773624.XA CN201910773624A CN110526550A CN 110526550 A CN110526550 A CN 110526550A CN 201910773624 A CN201910773624 A CN 201910773624A CN 110526550 A CN110526550 A CN 110526550A
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- Prior art keywords
- solid phase
- phase sludge
- sludge
- agent
- deep dehydration
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- 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
- C02F11/148—Combined use of inorganic and organic substances, being added in the same treatment step
Abstract
The invention discloses a kind of deep dehydration medicaments for solid phase sludge, the Assistant by following mass percents material composition: 5%~20% inorganic flocculating agent, 0.1%~1% seepage flow drag reducer, 79%~94% solidification proppant, 0.1%~3% broken wall agent, wherein inorganic flocculating agent is aluminium polychloride, bodied ferric sulfate, ferric trichloride, aluminum sulfate, polymeric aluminium ferrum silicate etc., seepage flow drag reducer is polyethylene oxide, diallyl dimethyl ammoniumchloride, acrylamide/sodium Acrylate/diallyldimethylammonium chloride copolymer, humic acid etc., solidification proppant is flyash, diatomite, perlite etc., broken wall agent is potassium permanganate, potassium bichromate, Calcium perchlorate, SODIUM PERCARBONATE etc..Assistant of the present invention is suitable for directly using 80% or so moisture content solid phase sludge the squeezing dehydration equipment twice pressing such as high pressure belt machine to be dehydrated to 60% or less, the technological problems such as solid phase sludge secondary dilution are avoided, and it has burn into environmental pollution component to high-temperature service without containing lime etc..
Description
Technical field
The invention belongs to sludge dewatering agent technical fields, and in particular to the sludge such as municipal administration, landscape, industry use high pressure
The devices such as belt type sludge deep dehydration machine are in solid phase sludge dehydration, suitable for the compound of the direct deep dehydration of solid phase sludge
Medicament.
Background technique
Sludge is the waste of the solid-state generated in sewage disposal process, semisolid and liquid.With industry and urbanization
The quickening of process and the development of sewage treatment industry, sewage load and degree for the treatment of are continuously improved, therefore and the dirt of generation
Mud yield increasingly increases.It is estimated that at present China municipal administration, industry, landscape sewage treatment generate sludge yield more than 100,000,000 tons/
Year, it is the important link of national water treatment field that Treatment of Sludge, which is the guarantee for implement that sewage treatment is able to finally realize,.
Final product of the sludge as water process, have complicated component, moisture content are high, the content of organic matter is high, hydrophily is strong,
It is dehydrated the features such as difficulty is big, easily smelly, seriously polluted.For moisture percentage in sewage sludge generally 90%~99%, the scale of construction is huge, in order to realize
Sludge finally is effectively treated, sludge must be dehydrated before processing, dehydration decrement is to reduce sludge subsequent treatment cost and mention
The important link of high efficiency of sludge treatment.Before 2018, the universal sludge dewatering standard of water treatment field be reach 80% with
Under, the dehydration equipment used mainly includes belt filter press, folded spiral shell machine, centrifuge, 80% sludge method for subsequent processing mainly with
Based on burial, secondary pollution and serious waste of resources.With the tightening of national environmental protection policy, 2018 end of the year countries, which push, to be executed
Sludge dewatering decrement standard mention mark, dehydration rate index is promoted to moisture content 60% hereinafter, using recycling, burial, burning again
Etc. final process mode, the dehydration equipment used be mainly plate and frame filter press.
For 60% or less new aqueous sludge dewatering standard in 2018,80% previously established dehydration equipment in 2018
Processing standard urgently upgrade and mention mark, market accounting is high, the market demand and technical need are very urgent.Currently, de- for 80%
Water quality standard upgrading proposes target technology, the method mainly used be 80% moisture content solid phase sludge is diluted with water to aqueous 97% with
After upper formation mud, adds sludge conditioner and carry out conditioning pretreatment, then squeezing second dehydration is carried out using plate and frame filter press
To 60% or less moisture content.This technique there are aqueous 80% solid phase sludge secondary dilution, dissolution dosing, twice pressing complexity and
The problems such as iterative process, dehydration equipment technique repeats, utilization efficiency is low, and sheet frame the second investment is big.
Currently there are some equipment that can directly carry out solid phase sludge press dewatering, may be implemented aqueous to 80%
Dewatering technology of mud carries out proposing mark upgrading, after adding pre-treatment medicaments to solid phase sludge, directly carries out the two of solid phase sludge
Secondary press dewatering achievees the purpose that moisture percentage in sewage sludge.Such as high pressure band press filter dewatering machine, equipment and technology have fabulous
Market prospects and space.But it is pretreated due to directly being carried out currently without matched, special, efficient solid phase sludge
The mating medicament of second dehydration, can not be cooperated with equipment using common lime and common iron aluminium salt class medicament reach 60% it is aqueous with
Under technical requirements.Therefore, such solid phase sludge second dehydration equipment and technology are caused in the application in market and is promoted by pole
The technical advantage of big limitation, technological design is not not fully exerted.The General Medicines such as lime are not able to satisfy solid phase not only
Sludge, which directly improves, is dehydrated purpose up to standard, while its secondary pollution, has corruption to high-temperature service without containing lime etc. in component
The dosage component of erosion influence, environmental pollution.
Summary of the invention
After for the device for dehydrating sladge waste dehydration such as belt filter press, folded spiral shell machine, centrifuge
Solid phase sludge is only capable of reaching 80% or so moisture content, is unable to satisfy 60% or less new aqueous sludge dewatering in 2018 and mentions mark liter
The problem of grade renovation technique demand, one kind is provided and does not need to be diluted with water solid phase sludge, is added directly to 80% or so
In moisture content solid phase sludge, using belt filter press, the dehydration equipments such as spiral shell machine, centrifuge are folded by the direct twice pressing of solid phase sludge
Dehydration is reduced to the deep dehydration medicament of 60% or less moisture content.
For above-mentioned purpose, the deep dehydration medicament of the present invention for solid phase sludge is by following mass percents
Material composition:
5%~20% inorganic flocculating agent, 0.1%~1% seepage flow drag reducer, 79%~94% solidification proppant, 0.1%~
3% broken wall agent.
The above-mentioned deep dehydration medicament for solid phase sludge, the preferably material composition by following mass percents:
8%~15% inorganic flocculating agent, 0.3%~0.8% seepage flow drag reducer, 83%~90% solidification proppant, 1%~
2% broken wall oxidant.
Above-mentioned inorganic flocculating agent is aluminium polychloride, bodied ferric sulfate, ferric trichloride, aluminum sulfate, polymeric aluminium ferrum silicate
In any one or more, preferred polymeric aluminium chloride.
Above-mentioned seepage flow drag reducer is polyethylene oxide, diallyl dimethyl ammoniumchloride, acrylamide/acrylic acid
Any one or more in sodium/diallyldimethylammonium chloride copolymer, humic acid, preferably diallyl dimethyl chlorination
Ammonium.
Above-mentioned solidification proppant is flyash, diatomite, any one or more in perlite, preferably perlite.
Above-mentioned broken wall agent is potassium permanganate, potassium bichromate, Calcium perchlorate, any one or more in SODIUM PERCARBONATE, excellent
Select potassium permanganate.
Solid phase sludge of the present invention is the solid phase sludge of moisture content 80%~85%, the dosage of the Assistant
It is the 3%~10% of solid phase sludge quality, wherein inorganic flocculating agent is dissolved into the solution that mass concentration is 30%~35% with water
After carry out mixing add, broken wall agent with water be dissolved into mass concentration be 8%~12% solution after carry out mixing add.
Assistant of the present invention is suitable for 80% after the equipment dehydration such as belt filter press, folded spiral shell machine, centrifuge
The solid phase sludge of moisture content or so, directly carried out using original equipment twice pressing dehydration mention mark upgrade to 60% or less moisture content
Dedicated solid phase sludge Assistant is a kind of based on seepage flow drag reduction, sludge seepage flow skeleton theory and improvement sludge pressing dehydration property
The tailored version composite sludge conditioner of energy scheduling theory.Inorganic flocculating agent in its component utilizes its flocculation dewatering effect release sludge
In gap/combine water；Seepage flow drag reducer solidifies the seepage channel that proppant is established between sludge micelle/group, and it is de- to reduce sludge
Water filtrational resistance improves dehydration efficiency；Broken wall agent improves dirty on the basis of oxygenolysis sludge micelle outer layer low molecule organic matter
Earth rubber group's table/interfacial activity discharges water intracellular, capillary water in micelle after decomposing broken wall.
Beneficial effects of the present invention are as follows:
1, Assistant of the present invention is a kind of pharmaceutical preparations that the direct second dehydration of solid phase sludge uses, and is suitable for belt pressure
The solid phase sludge of 80% moisture content, recycles device for dehydrating sladge waste after the device for dehydrating sladge waste dehydration such as filter, folded spiral shell machine, centrifuge
Direct second dehydration decrement mentions mark and upgrades to the solid phase sludge twice pressing Assistant below of moisture content 60%.This processing mode
Belong to the processing mode of innovative solid phase sludge second dehydration.
2, Assistant of the present invention avoid by aqueous 80% solid phase sludge secondary dilution, dissolution dosing, squeezing answer
Miscellaneous and iterative process is realized and is dehydrated to after the direct dosing of the solid phase sludge of 80% moisture content, and its dehydration indexes improves
To 60% hereinafter, realizing through solid phase sludge press apparatus from 80% or so moisture content Direct Dehydration to 60% or less moisture content
Mention mark transformation, can sufficiently develop and meet the needs of market is to such solid phase sludge second dehydration medicament and technology, solve
Solid phase sludge realizes the technical problem of direct press apparatus dehydration.
3, Assistant of the present invention is suitable for continuously the device for dehydrating sladge waste such as high pressure belt machine of sludge dewatering matching,
Continuity, the secondary Direct Dehydration decrement for realizing solid phase sludge, greatly improve compared with the batches sludge treatment capacity such as sheet frame, take up an area and subtract
It is small and realize moveable sludge emergency dewatering projects.
4, in Assistant of the present invention without containing lime, chlorine root substance etc. to the dosage component of high-temperature service, environmental pollution,
To the processing of subsequent recycling sludge and using no negative effect, and good environmental adaptability, it adds easy to operate, it can be achieved that medicament
It is added directly into solid sludges and realizes dehydration.
Specific embodiment
Below with reference to embodiment, the present invention is described in more detail, but protection scope of the present invention is not limited only to these realities
Apply example.
Embodiment 1
The Assistant of the present embodiment is made of following substances:
Inorganic flocculating agent: 5g aluminium polychloride；
Seepage flow drag reducer: 0.1g polyethylene oxide；
Solidify proppant: 94.8g flyash；
Broken wall agent: 0.1g potassium permanganate.
Embodiment 2
The Assistant of the present embodiment is made of following substances:
Inorganic flocculating agent: 20g aluminium polychloride,；
Seepage flow drag reducer: 1.0g polyethylene oxide；
Solidify proppant: 76.0g flyash；
Broken wall agent: 3.0g potassium permanganate.
Embodiment 3
The Assistant of the present embodiment is made of following substances:
Inorganic flocculating agent: 10g aluminium polychloride；
Seepage flow drag reducer: 0.5g polyethylene oxide；
Solidify proppant: 89.0g flyash；
Broken wall agent: 0.5g potassium permanganate.
Embodiment 4
The Assistant of the present embodiment is made of following substances:
Inorganic flocculating agent: 10g bodied ferric sulfate；
Seepage flow drag reducer: 0.5g diallyl dimethyl ammoniumchloride；
Solidify proppant: 89.0g diatomite；
Broken wall agent: 0.5g potassium bichromate.
Embodiment 5
The Assistant of the present embodiment is made of following substances:
Inorganic flocculating agent: 10g ferric trichloride；
Seepage flow drag reducer: 0.5g acrylamide/sodium Acrylate/diallyldimethylammonium chloride copolymer；
Solidify proppant: 89.0g perlite；
Broken wall agent: 0.5g Calcium perchlorate.
Embodiment 6
The Assistant of the present embodiment is made of following substances:
Inorganic flocculating agent: 10g aluminum sulfate, mass percentage 10%；
Seepage flow drag reducer: 0.5g acrylamide/sodium Acrylate/diallyldimethylammonium chloride copolymer；
Solidify proppant: 89.0g perlite；
Broken wall agent: 0.5g SODIUM PERCARBONATE.
Embodiment 7
The Assistant of the present embodiment is made of following substances:
Inorganic flocculating agent: 15g aluminum sulfate；
Seepage flow drag reducer: 0.5g acrylamide/sodium Acrylate/diallyldimethylammonium chloride copolymer；
Solidify proppant: 84.0g perlite；
Broken wall agent: 0.5g SODIUM PERCARBONATE.
Embodiment 8
The Assistant of the present embodiment is made of following substances:
Inorganic flocculating agent: 5g polymeric aluminium ferrum silicate；
Seepage flow drag reducer: 0.5g humic acid；
Solidify proppant: 94.0g perlite；
Broken wall agent: 0.5g SODIUM PERCARBONATE.
Embodiment 9
The Assistant of the present embodiment is made of following substances:
Inorganic flocculating agent: 5g aluminium polychloride；
Seepage flow drag reducer: 0.5g humic acid；
Solidify proppant: 89.0g perlite；
Broken wall agent: 0.5g potassium permanganate.
In order to prove beneficial effects of the present invention, inventor is aqueous to 80% or so using the Assistant of Examples 1 to 9
The solid phase sludge of rate carries out second dehydration, and the specific method is as follows:
By the aqueous solution that mass concentration is 33% is made in inorganic flocculating agent configuration, to be configured to mass concentration be 10% for broken wall agent
Aqueous solution, then all components are added in solid phase sludge, mechanical stirring pre-process 3min；Then make pretreated solid
Phase sludge, which enters, carries out press dewatering in high pressure band press filter dewatering machine；The pressure of high pressure band press filter dewatering machine is greater than
0.2MPa, press dewatering time 1.5min or more.Test equipment mud extraction moisture content, the results are shown in Table 1.
Testing result of the different Assistants of table 1 to solid phase sludge dewatering
As it can be seen from table 1 Assistant of the present invention is used for the directly secondary pressure of solid phase sludge of moisture content 80%~85%
After squeezing dehydration, it can meet country and mention 60% index request below after mark.
Claims (8)
1. a kind of deep dehydration medicament for solid phase sludge, it is characterised in that the Assistant by following mass percents object
Matter composition:
5%~20% inorganic flocculating agent, 0.1%~1% seepage flow drag reducer, 79%~94% solidification proppant, 0.1%~3%
Broken wall agent；
Above-mentioned inorganic flocculating agent is aluminium polychloride, appoints in bodied ferric sulfate, ferric trichloride, aluminum sulfate, polymeric aluminium ferrum silicate
It anticipates one or more；
Above-mentioned seepage flow drag reducer is polyethylene oxide, diallyl dimethyl ammoniumchloride, acrylamide/sodium Acrylate/bis-
Any one or more in allyl dimethyl ammonium chloride copolymer, humic acid；
Above-mentioned solidification proppant is flyash, diatomite, any one or more in perlite；
Above-mentioned broken wall agent is potassium permanganate, potassium bichromate, Calcium perchlorate, any one or more in SODIUM PERCARBONATE.
2. the deep dehydration medicament according to claim 1 for solid phase sludge, it is characterised in that the Assistant is under
State the material composition of mass percent:
8%~15% inorganic flocculating agent, 0.3%~0.8% seepage flow drag reducer, 83%~90% solidification proppant, 1%~2%
Broken wall oxidant.
3. the deep dehydration medicament according to claim 2 for solid phase sludge, it is characterised in that: the inorganic flocculation
Agent is aluminium polychloride.
4. the deep dehydration medicament according to claim 2 for solid phase sludge, it is characterised in that: the seepage flow drag reduction
Agent is diallyl dimethyl ammoniumchloride.
5. the deep dehydration medicament according to claim 2 for solid phase sludge, it is characterised in that: the solidification support
Agent is perlite.
6. the deep dehydration medicament according to claim 2 for solid phase sludge, it is characterised in that: the broken wall agent is
Potassium permanganate.
7. the deep dehydration medicament of solid phase sludge is used for described in any one according to claim 1~6, it is characterised in that: institute
State the solid phase sludge that solid phase sludge is moisture content 80%~85%.
8. being used for the deep dehydration medicament of solid phase sludge according to claim 7 any one, it is characterised in that: described de-
The dosage of water medicament is the 3%~10% of solid phase sludge quality, and wherein inorganic flocculating agent is dissolved into mass concentration with water and is
Carried out after 30%~35% solution mixing add, broken wall agent with water be dissolved into mass concentration be 8%~12% solution it is laggard
Row mixing adds.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056729A (en) * | 2020-02-18 | 2020-04-24 | 广州绿邦环境技术有限公司 | Medicament for sludge filter pressing and production process |
| CN111204824A (en) * | 2020-01-17 | 2020-05-29 | 广东东日环保股份有限公司 | River surge sewage treatment agent and preparation method thereof |
| CN111718104A (en) * | 2020-06-19 | 2020-09-29 | 中碳(上海)科技有限公司 | Polysilicate iron chemical conditioner and preparation method thereof |
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| CN111204824A (en) * | 2020-01-17 | 2020-05-29 | 广东东日环保股份有限公司 | River surge sewage treatment agent and preparation method thereof |
| CN111056729A (en) * | 2020-02-18 | 2020-04-24 | 广州绿邦环境技术有限公司 | Medicament for sludge filter pressing and production process |
| CN111056729B (en) * | 2020-02-18 | 2022-06-28 | 广州绿邦环境技术有限公司 | Medicament for sludge filter pressing and production process |
| CN111718104A (en) * | 2020-06-19 | 2020-09-29 | 中碳(上海)科技有限公司 | Polysilicate iron chemical conditioner and preparation method thereof |
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| CN110526550B (en) | 2022-05-03 |
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Effective date of registration: 20230613 Address after: Room 4119, 1f, building 4, Xindu Hotel, 21 Chegongzhuang street, Xicheng District, Beijing 100037 Patentee after: Beijing Hengrun Huichuang Environmental Technology Co.,Ltd. Patentee after: SHENMEI TECHNOLOGY CO.,LTD. Address before: 21 Chegongzhuang st, Xicheng District, Beijing Patentee before: Beijing Pioneer Sludge Disposal Technology Co.,Ltd. Patentee before: SHENMEI TECHNOLOGY CO.,LTD. |