CN106865927A - A kind of living polymer curing agent for processing riverway sludge or sludge - Google Patents
A kind of living polymer curing agent for processing riverway sludge or sludge Download PDFInfo
- Publication number
- CN106865927A CN106865927A CN201710146248.2A CN201710146248A CN106865927A CN 106865927 A CN106865927 A CN 106865927A CN 201710146248 A CN201710146248 A CN 201710146248A CN 106865927 A CN106865927 A CN 106865927A
- Authority
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- China
- Prior art keywords
- sludge
- living polymer
- curing agent
- agent
- polymer curing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C02F11/008—Sludge treatment by fixation or solidification
-
- 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
Abstract
The invention discloses a kind of polymer composites curing process riverway sludge or the method for sludge, belong to field of environment engineering technology.The present invention destroys the hydrophily on grogs surface using a kind of living polymer, weaken the active force between grogs and water, Free water will be converted into reference to water, and with the use of all kinds of coagulating agents, binding agent and catalyst, make mud particles harden to form closely hypotonic structure；Simultaneously by adding inorganic passivating material, mud or sludge of the stabilization containing heavy metals such as Pb, Cr, Cd, Cu, Zn are fixed in closed soil shell, realize the harmlessness disposing of riverway sludge or sludge.Compared with existing cement-based solidified method, the method has curing efficiency high, and heavy metal pollutant control effect is good, the advantages of economic benefits, has very big application potential in river regulation and sludge treatment field.
Description
Technical field
Living polymer curing agent the present invention relates to a kind of riverway sludge or Treatment of Sludge and application thereof.
Background technology
Inland city of China lake river course is numerous, and the bottom has substantial amounts of mud to pile up.Collection and treatment to mud are often
Quantities is big, and cost is surprising.For example in South-to-North Water Transfer Project, the land expropriation cost of the dredging silt of generation is just up to 6.4
Hundred million yuan.And these mud moisture content stacked are high, low intensity also contains toxic chemical substance (such as heavy metal), causal organism
Deng some harmful components.External many developed countries are with commercial systems such as mud manufacture high-efficient purification fuel, construction materials to becoming silted up
Mud carries out comprehensive development and utilization.But at home, technology with it is economical due to, lake training of channel mud is most still
As filling material, the moisture content of mud is reduced, improve the intensity of mud to meet the requirement that the earthwork is filled.Therefore, it is domestic general
When curing process, but cement class material are carried out to mud for silt consolidation all over the inorganic material of use cement class, addition
Larger, the solidification effect to High water cut mud is poor, it is impossible to meet growing mud or Treatment of Sludge requirement.
Existing mud or excess sludge curing agent addition content are general between 10%~20%, cause sludge curing increase-volume
Than larger, it is difficult to realize that sludge reduction is processed, and due to containing heavy metal classes harmful substance in mud or sludge, therefore it is badly in need of
A kind of solidification and stabilization effect is good, addition content is low mud or sludge solidifying agent.
The content of the invention
In order to solve validity and the limitation sex chromosome mosaicism that existing sludge solidification material is present, in riverway sludge or sludge
Containing the characteristic such as a large amount of organic matters and heavy metal, the invention provides a kind of silt/sludge activity polymer solidification of excellent performance
Agent, curing process is carried out to High water cut mud or sludge, quickly effectively reduces its moisture content.Simultaneously can be according to contained heavy metal thing
The species of matter, specific aim adds all kinds of inorganic passivating materials, and it is strong to improve mud to couple coagulating agent, binding agent and catalyst
Degree, reaches the use requirement of all kinds of engineerings and varying environment.
Living polymer curing agent of the invention, by percentage to the quality, main composition is：Dehydrating agent 0.5%-8%, glues
Knot agent 15%-30%, coagulating agent 10%-30%, catalyst 5%-15%, passivator 0.5%-2%.
Described dehydrating agent is preferably polyacrylamide substances, is neutralized using powered position on cationic polymeric molecule
Sludge colloidal solid institute is negatively charged, and compression double electric layer is allowed to de- steady；And made using the high molecular reel chain of cationic polymer
Adsorb entangled with tiny mud particles, form larger particles, so as to moisture be extruded.
Described binding agent is preferably gelatinized starch, meets water gelatinization, absorbs moisture, is improved by its good adhesive property
The intensity of curing sludge or sludge.
Described coagulating agent is preferably portland cement or/and gypsum, after addition gypsum, the aluminic acid in hydrolysis product of cement
Calcium be able to can also increase with gypsum reaction generation entringite, solid volume.The expansion of one side entringite can fill part
Hole, reduces the void content of solidified earth, and the needle prick shape or column crystal of another aspect entringite intersect in hole, with water
Change calcium silicates, drated calcium aluminate and form space structure together.
Described catalyst is preferably one or several in quick lime, triethanolamine or NaOH, using its alkalescence
The activity and mud or sludge activity in itself of excited cement Binder Materials can be catalyzed so that condense and hydration reaction rapid clockwise
Carry out sharply, improve constantly the intensity of curing sludge.
Described inorganic passivating material is preferably in calcium dihydrogen phosphate, hydroxyapatite, calcium carbonate, magnesium carbonate or sodium metasilicate
One or several, specific aim addition is carried out according to the heavy metal such as Pb, Cr, Cd, Cu, Zn species in mud or sludge and content,
Heavy metal is fixed in closed soil shell, the harmlessness disposing of riverway sludge or sludge is realized.
Specific embodiment：
Embodiment 1
The living polymer curing agent of the present embodiment, raw materials used is PAMC, gelatinized starch, silicate
Cement, quick lime, triethanolamine, hydroxyapatite etc. are constituted, and composition is cationic polymer material in mass ratio：Gelatinization is formed sediment
Powder：Portland cement：Quick lime：Hydroxyapatite=1：3：3：2：1 is mixed；Wherein, the phosphorus grade of hydroxyapatite is
25%, granularity is 100 mesh.
The preparation method of the present embodiment riverway sludge or sludge solidifying agent, comprises the following steps：
After step 1 cleans hydroxyapatite with water, 6~8h is dried under the conditions of 105~110 DEG C；
Hydroxyapatite is crushed to below 1mm by step 2 step by step using disintegrating machine, then carries out ball respectively using ball mill
Mill, crush, after ball milling various ore particle diameters≤100 mesh；
Step 3 in mass ratio for be added to the water at 1: 2, stirs starch, is heated at 80 DEG C of temperature, and constantly stir
Mix, starch slurry is gelatinized until completely into paste by.Gelatinized starch is dried and is dried, prepare pre-gelatinized starch.
Step 4 at normal temperatures, by treated hydroxyapatite, PAMC, pre-gelatinized starch, silicic acid
Salt cement is well mixed according to the proportioning of composite curing agent, forms living polymer curing agent.
The application method of the present embodiment riverway sludge or sludge solidifying agent, comprises the following steps：
Silt/the sludge solidifying agent for accounting for silt/sludge total amount 8% is added in silt/sludge, is mixed, stirred 30 minutes, stirred
After mixing end, moisture is extruded using mechanical compression is discharged, after maintenance 7d, curing molding.River course after solidifying in the present embodiment
After normal temperature and pressure overlay film is conserved 7 days, it is 2.1MPa to use universal testing machine to measure its compression strength to mud.
Embodiment 2
The living polymer curing agent of the present embodiment, raw materials used is PAMC, gelatinized starch, silicate
Cement, quick lime, triethanolamine, hydroxyapatite etc. are constituted, and composition is cationic polymer material in mass ratio：Gelatinization is formed sediment
Powder：Portland cement+gypsum：Quick lime：Lime stone=1：3：3：2：1 is mixed；Wherein, the purity of lime stone is containing 80%
CaCO3, granularity is 100 mesh.
The preparation method of the present embodiment riverway sludge or sludge solidifying agent, comprises the following steps：
After step 1 cleans lime stone with water, 6~8h is dried under the conditions of 105~110 DEG C；
Lime stone is crushed to below 1mm by step 2 step by step using disintegrating machine, then carries out ball milling respectively using ball mill, is broken
After broken, ball milling various ore particle diameters≤100 mesh；
Step 3 in mass ratio for be added to the water at 1: 2, stirs starch, is heated at 80 DEG C of temperature, and constantly stir
Mix, starch slurry is gelatinized until completely into paste by.Gelatinized starch is dried and is dried, prepare pre-gelatinized starch.
Step 4 at normal temperatures, by treated lime stone, PAMC, gelatinized starch, portland cement
It is well mixed according to the proportioning of composite curing agent with gypsum, forms living polymer curing agent.
The application method of the present embodiment riverway sludge or sludge solidifying agent, comprises the following steps：
Silt/the sludge solidifying agent for accounting for silt/sludge total amount 6% is added in silt/sludge, is mixed, stirred 30 minutes, stirred
After mixing end, moisture is extruded using mechanical compression is discharged, after maintenance 7d, curing molding.Sludge after solidifying in the present embodiment
After normal temperature and pressure overlay film is conserved 7 days, it is 2.2MPa to use universal testing machine to measure its compression strength.
Claims (7)
1. a kind of living polymer curing agent, it is characterised in that by percentage to the quality, main composition is：Dehydrating agent 0.5%-
8%, binding agent 15%-30%, coagulating agent 10%-30%, catalyst 5%-15%, passivator 0.5%-2%.
2. living polymer curing agent according to claim 1, it is characterised in that described dehydrating agent is polyacrylamide
Class material.
3. living polymer curing agent according to claim 1, it is characterised in that described binding agent is gelatinized starch.
Water being met as binding agent to be gelatinized, absorbing moisture, curing sludge intensity is improved using good adhesive property.
4. living polymer curing agent according to claim 1, it is characterised in that described coagulating agent is portland cement
Or/and gypsum.
5. living polymer curing agent according to claim 1, it is characterised in that described catalyst is quick lime, three
One or several in monoethanolamine or NaOH.
6. living polymer curing agent according to claim 1, it is characterised in that described inorganic passivating material is phosphoric acid
One or several in calcium dihydrogen, hydroxyapatite, calcium carbonate, magnesium carbonate or sodium metasilicate.
7. using the purposes of one of claim 1-6 described living polymer curing agent, it is characterised in that：In silt/sludge
Addition accounts for the silt/sludge solidifying agent of the 1%-15% of silt/sludge total amount, after mixing 10-30 minutes, using mechanical compression
Moisture is extruded, for engineering earthing, plantation greening, roadbed material and building materials etc. after maintenance 7-40d curing moldings.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710146248.2A CN106865927A (en) | 2017-03-13 | 2017-03-13 | A kind of living polymer curing agent for processing riverway sludge or sludge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710146248.2A CN106865927A (en) | 2017-03-13 | 2017-03-13 | A kind of living polymer curing agent for processing riverway sludge or sludge |
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| CN106865927A true CN106865927A (en) | 2017-06-20 |
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| CN201710146248.2A Pending CN106865927A (en) | 2017-03-13 | 2017-03-13 | A kind of living polymer curing agent for processing riverway sludge or sludge |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107585981A (en) * | 2017-10-17 | 2018-01-16 | 诸暨马谷亲科技有限公司 | A kind of urban sewer sludge curing agent and preparation method thereof |
| CN107673572A (en) * | 2017-09-27 | 2018-02-09 | 武汉鹏森环境科技有限公司 | A kind of dirty sludge curing agent and its application |
| CN108033496A (en) * | 2017-11-30 | 2018-05-15 | 张磊 | A kind of farmland water getting fat using sludge as matrix purifies adjuvant |
| CN109607994A (en) * | 2018-12-08 | 2019-04-12 | 南京泽生环保科技有限公司 | A kind of bed mud improvement agent prescription and preparation method thereof |
| CN110330976A (en) * | 2019-07-18 | 2019-10-15 | 河南省明创环境科技有限公司 | Medicament using Filling Principle remediating lead-contaminated soil and the method using Filling Principle remediating lead-contaminated soil |
| 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 |
| CN110550927A (en) * | 2019-10-08 | 2019-12-10 | 山东大学 | Industrial waste gypsum mortar prepared by industrial tail gas synergy and toxicity solving method |
| CN110818209A (en) * | 2019-11-11 | 2020-02-21 | 河北诚润环保工程有限公司 | River and lake sludge solidification ecological slope protection treatment process |
| CN112225433A (en) * | 2020-10-20 | 2021-01-15 | 中建三局绿色产业投资有限公司 | Alkalescent sludge solidification conditioner based on hydrogel and solidification treatment method and application thereof |
| CN113213885A (en) * | 2021-05-27 | 2021-08-06 | 中国电建集团中南勘测设计研究院有限公司 | Heavy metal bottom mud curing agent and curing and stabilizing method thereof |
| CN114477859A (en) * | 2021-12-10 | 2022-05-13 | 河南北斗众创高新技术研究院有限公司 | Drying-free curing material for recycling industrial flue gas solid waste and application |
| CN115196939A (en) * | 2022-08-17 | 2022-10-18 | 徐州中矿岩土技术股份有限公司 | Soft soil curing agent and modified soil material for surface layer of shield muck accumulation area and preparation method thereof |
| CN115572030A (en) * | 2022-10-26 | 2023-01-06 | 天津创业环保集团股份有限公司 | Composite stabilizer suitable for heavy metal composite polluted sludge and application thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673572B (en) * | 2017-09-27 | 2021-04-09 | 武汉鹏森环境科技有限公司 | Sludge curing agent and application thereof |
| CN107673572A (en) * | 2017-09-27 | 2018-02-09 | 武汉鹏森环境科技有限公司 | A kind of dirty sludge curing agent and its application |
| CN107585981A (en) * | 2017-10-17 | 2018-01-16 | 诸暨马谷亲科技有限公司 | A kind of urban sewer sludge curing agent and preparation method thereof |
| CN108033496A (en) * | 2017-11-30 | 2018-05-15 | 张磊 | A kind of farmland water getting fat using sludge as matrix purifies adjuvant |
| CN108033496B (en) * | 2017-11-30 | 2021-05-07 | 甘南县龙头岭有机肥有限公司 | Farmland water fertilizing and purifying auxiliary agent with sludge as matrix |
| CN109607994A (en) * | 2018-12-08 | 2019-04-12 | 南京泽生环保科技有限公司 | A kind of bed mud improvement agent prescription and preparation method thereof |
| CN110330976A (en) * | 2019-07-18 | 2019-10-15 | 河南省明创环境科技有限公司 | Medicament using Filling Principle remediating lead-contaminated soil and the method using Filling Principle remediating lead-contaminated soil |
| 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 |
| CN110550927A (en) * | 2019-10-08 | 2019-12-10 | 山东大学 | Industrial waste gypsum mortar prepared by industrial tail gas synergy and toxicity solving method |
| CN110818209A (en) * | 2019-11-11 | 2020-02-21 | 河北诚润环保工程有限公司 | River and lake sludge solidification ecological slope protection treatment process |
| CN112225433A (en) * | 2020-10-20 | 2021-01-15 | 中建三局绿色产业投资有限公司 | Alkalescent sludge solidification conditioner based on hydrogel and solidification treatment method and application thereof |
| CN113213885A (en) * | 2021-05-27 | 2021-08-06 | 中国电建集团中南勘测设计研究院有限公司 | Heavy metal bottom mud curing agent and curing and stabilizing method thereof |
| CN114477859A (en) * | 2021-12-10 | 2022-05-13 | 河南北斗众创高新技术研究院有限公司 | Drying-free curing material for recycling industrial flue gas solid waste and application |
| CN115196939A (en) * | 2022-08-17 | 2022-10-18 | 徐州中矿岩土技术股份有限公司 | Soft soil curing agent and modified soil material for surface layer of shield muck accumulation area and preparation method thereof |
| CN115572030A (en) * | 2022-10-26 | 2023-01-06 | 天津创业环保集团股份有限公司 | Composite stabilizer suitable for heavy metal composite polluted sludge and application thereof |
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Application publication date: 20170620 |