KR101289825B1 - Sludge solidified agent and menufacturing method of artificial soil usign the same - Google Patents
Sludge solidified agent and menufacturing method of artificial soil usign the same Download PDFInfo
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- KR101289825B1 KR101289825B1 KR1020110097233A KR20110097233A KR101289825B1 KR 101289825 B1 KR101289825 B1 KR 101289825B1 KR 1020110097233 A KR1020110097233 A KR 1020110097233A KR 20110097233 A KR20110097233 A KR 20110097233A KR 101289825 B1 KR101289825 B1 KR 101289825B1
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- sludge
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- solidifying agent
- organic sludge
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- 239000010802 sludge Substances 0.000 title claims abstract description 84
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 62
- 239000002689 soil Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims description 14
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000000292 calcium oxide Substances 0.000 claims abstract description 36
- 239000002893 slag Substances 0.000 claims abstract description 34
- 239000011575 calcium Substances 0.000 claims abstract description 33
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 32
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000428 dust Substances 0.000 claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 239000004848 polyfunctional curative Substances 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims description 34
- 239000003638 chemical reducing agent Substances 0.000 claims description 26
- 235000012255 calcium oxide Nutrition 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 16
- BPLYVSYSBPLDOA-GYOJGHLZSA-N n-[(2r,3r)-1,3-dihydroxyoctadecan-2-yl]tetracosanamide Chemical compound CCCCCCCCCCCCCCCCCCCCCCCC(=O)N[C@H](CO)[C@H](O)CCCCCCCCCCCCCCC BPLYVSYSBPLDOA-GYOJGHLZSA-N 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000010459 dolomite Substances 0.000 claims description 8
- 229910000514 dolomite Inorganic materials 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 239000002006 petroleum coke Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 239000006227 byproduct Substances 0.000 claims description 3
- 238000010828 elution Methods 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 claims description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 3
- 229920005591 polysilicon Polymers 0.000 claims description 3
- -1 sodium aluminum fluoride Chemical compound 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 38
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract description 24
- 239000010801 sewage sludge Substances 0.000 abstract description 18
- 239000000463 material Substances 0.000 abstract description 15
- 238000010521 absorption reaction Methods 0.000 abstract description 12
- 235000019645 odor Nutrition 0.000 abstract description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 8
- 230000020169 heat generation Effects 0.000 abstract description 6
- 230000001603 reducing effect Effects 0.000 abstract description 6
- 230000002378 acidificating effect Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 4
- 229910021529 ammonia Inorganic materials 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 14
- 239000002956 ash Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 239000010881 fly ash Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000004566 building material Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 101000993059 Homo sapiens Hereditary hemochromatosis protein Proteins 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- UVUNJWXRFPQTBS-UHFFFAOYSA-N [Al+3].[Al+3].P.[S-2] Chemical compound [Al+3].[Al+3].P.[S-2] UVUNJWXRFPQTBS-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/06—Calcium compounds, e.g. lime
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Soil Sciences (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
본 발명은 하수슬러지 등 유기성 슬러지를 효과적으로 고화처리하기 위한 고화제 및 이를 이용한 인공토양 제조방법에 관한 것으로서, 보다 상세하게는 제지슬러지 소각재와, 고칼슘 슬래그 분진에 다량 함유된 CaO의 흡수, 발열 및 부피팽창 작용을 이용하여 하수슬러지 등 고함수 슬러지의 함수율을 저감시켜 인공토양을 제조하고, 제조된 인공토양에 산성물질을 추가로 혼합하여 높은 알칼리에 의한 암모니아 냄새 등 악취의 발생을 근원적으로 차단하는 유기성 슬러지 고화제 및 이를 이용한 인공토양 제조방법에 관한 것이다.
본 발명에 의한 유기성 슬러지 고화제는 산화칼슘(CaO) 함량이 35~70중량%인 제지슬러지소각재 100중량부에 대하여, 산화칼슘(CaO) 함량이 40~80중량%인 고칼슘 슬래그 분진 10~200중량부를 포함한다. The present invention relates to a solidifying agent for effectively solidifying organic sludge, such as sewage sludge, and an artificial soil manufacturing method using the same. More specifically, absorption, heat generation and volume of CaO contained in a large amount of paper sludge incineration and high calcium slag dust The artificial soil is produced by reducing the water content of high functional sludge such as sewage sludge using the expansion action, and by additionally mixing acidic materials with the manufactured artificial soil to fundamentally block the generation of odors such as ammonia odor caused by high alkali. The present invention relates to a sludge hardener and an artificial soil manufacturing method using the same.
The organic sludge solidifying agent according to the present invention is a high calcium slag dust having a calcium oxide (CaO) content of 40 to 80% by weight with respect to 100 parts by weight of the paper sludge incinerator having a calcium oxide (CaO) content of 35 to 70% by weight. It includes parts by weight.
Description
본 발명은 하수슬러지 등 유기성 슬러지를 효과적으로 고화처리하기 위한 고화제 및 이를 이용한 인공토양 제조방법에 관한 것으로서, 보다 상세하게는 제지슬러지 소각재와, 고칼슘 슬래그 분진에 다량 함유된 CaO의 흡수, 발열 및 부피팽창 작용을 이용하여 하수슬러지 등 고함수 슬러지의 함수율을 저감시켜 인공토양을 제조하고, 제조된 인공토양에 산성물질을 추가로 혼합하여 높은 알칼리에 의한 암모니아 냄새 등 악취의 발생을 근원적으로 차단하는 유기성 슬러지 고화제 및 이를 이용한 인공토양 제조방법에 관한 것이다. The present invention relates to a solidifying agent for effectively solidifying organic sludge, such as sewage sludge, and an artificial soil manufacturing method using the same. More specifically, absorption, heat generation and volume of CaO contained in a large amount of paper sludge incineration and high calcium slag dust The artificial soil is produced by reducing the water content of high functional sludge such as sewage sludge using the expansion action, and by additionally mixing acidic materials with the manufactured artificial soil to fundamentally block the generation of odors such as ammonia odor caused by high alkali. The present invention relates to a sludge hardener and an artificial soil manufacturing method using the same.
근래에 유기성 슬러지가 대량 발생되는 바, 예를 들어 하수슬러지는 하수종말처리장에서 생활하수를 정화하고 남는 미생물 등의 사체로 이루어진 유기성 슬러지로서 탈수기에 의한 탈수처리 후에도 함수율이 약 80~90중량%에 달하는 대표적인 고함수 물질로서, 종래에는 해양투기, 매립 등의 방법으로 처리되어 왔다.Recently, a large amount of organic sludge has been generated. For example, sewage sludge is an organic sludge composed of carcasses such as microorganisms remaining after purifying domestic sewage in a sewage treatment plant, and its water content is about 80 to 90% by weight even after dehydration by a dehydrator. As a representative high-function material to reach, it has been conventionally treated by methods such as ocean dumping, landfill.
일례로 현재 하루에 약 8,000t 이상 배출되고 있는 생활하수 슬러지는 2003년 7월부터 일반 쓰레기 매립장 처리가 금지되었고, 가장 처리하기가 용이했던 해양투기마저 런던 협약에 의해 2011년 말까지만 제한적으로 허용되고 있다.For example, sewage sludge, which is currently emitting more than 8,000 tons per day, has been banned from landfills since July 2003, and even the most easily disposed of dumping at sea is limited only by the end of 2011 under the London Convention. have.
현재 수도권 매립지를 비롯한 대구, 부산, 제주 등에서 하수슬러지를 고화처리하여 일일 및 중간 복토재로 사용할 수 있는 인공토양을 제조하는 처리시설을 가동하고 있으며, 이와 관련하여 수분이 많은 슬러지의 고화처리가 이루어지고 있으나, 설비 가동성, 인공토양의 품질 등의 측면에서 우수한 고화제의 개발이 시급히 필요한 실정이다.Currently, the sewage sludge is solidified in Daegu, Busan, and Jeju, including landfills in the Seoul metropolitan area, and a treatment facility is being manufactured to produce artificial soils that can be used as daily and intermediate cover materials. However, there is an urgent need to develop an excellent hardener in terms of facility operability and quality of artificial soil.
종래의 하수슬러지 고화제의 연구는 생석회, 시멘트 등의 강알칼리성 재료를 주로 사용함에 따라 설비에 고착되는 등 설비가동성의 문제, 악취 발생 및 재슬러리화 등 품질의 문제점을 야기하였을 뿐만 아니라 이를 보완하기 위해 고가의 황산 및 황산철 등의 산성재료를 추가 투입하여 암모니아 방출 저감을 꾀하였으나 투입되는 원재료의 가격이 높아 경제성이 부족하다. Conventional sewage sludge solidifying agents have been used mainly for strong alkaline materials such as quicklime and cement, and they have been adhered to facilities and have caused quality problems such as homogeneity, odor generation and re-slurrying, In order to reduce the ammonia emission by adding acidic materials such as expensive sulfuric acid and iron sulfate, the cost of raw materials to be supplied is high, which is not economical.
본 발명은 상술한 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 제지슬러지 소각재와 고칼슘 슬래그 분진에 다량 함유된 CaO의 흡수, 발열 및 부피팽창 작용을 이용하여 유기성 슬러지 등 고함수 슬러지의 함수율을 저감시켜 인공토양을 제조하고, 제조된 인공토양에 산성물질을 추가로 혼합하여 높은 알칼리에 의한 암모니아 냄새 등 악취의 발생을 근원적으로 차단하는 유기성 슬러지 고화제 및 이를 이용한 인공토양 제조방법을 제공함에 있다. The present invention has been made to solve the above problems, an object of the present invention is the water content of high-functional sludge, such as organic sludge using the absorption, heat generation and volume expansion of CaO contained in a large amount of paper sludge incineration ash and high calcium slag dust To provide artificial sludge solidifying agent and an artificial soil manufacturing method using the same to reduce the production of artificial soil, and to further prevent the generation of odors such as ammonia odor caused by high alkali by additionally mixing acidic material to the artificial soil prepared. have.
위와 같은 기술적 과제를 해결하기 위하여 본 발명에 의한 유기성 슬러지 고화제는 산화칼슘(CaO) 함량이 35~70중량%인 제지슬러지소각재 100중량부에 대하여, 산화칼슘(CaO) 함량이 40~80중량%인 고칼슘 슬래그 분진 10~200중량부를 포함한다. In order to solve the above technical problem, the organic sludge solidifying agent according to the present invention has a calcium oxide (CaO) content of 35 to 70% by weight based on 100 parts by weight of paper sludge incineration ash, calcium oxide (CaO) content of 40 to 80 weight It contains 10 to 200 parts by weight of high calcium slag dust.
또한 상기 제지슬러지 소각재 및 고칼슘 슬래그 분진은 비표면적이 2,000~9,000cm2/g인 것이 바람직하다. In addition, the paper sludge incineration ash and high calcium slag dust is preferably a specific surface area of 2,000 ~ 9,000 cm 2 / g.
또한 상기 유기성 슬러지와의 발열반응을 증가시키기 위하여 발열제가 더 포함되는 것이 바람직하다. In addition, it is preferable to further include a heating agent in order to increase the exothermic reaction with the organic sludge.
또한 상기 발열제는 생석회 분말, 경소백운석 분말 및 페트롤코우크스 소각재 분말로 이루어진 군 가운데 선택된 어느 하나이거나 둘 이상의 혼합물인 것이 바람직하다.In addition, the heating agent is preferably any one or a mixture of two or more selected from the group consisting of quicklime powder, light dolomite powder and petroleum coke incinerator powder.
또한 상기 발열제는 상기 제지슬러지 소각재 100중량부에 대하여, 5~50 중량부 혼입되는 것이 바람직하다. In addition, the heat generating agent is preferably mixed 5 to 50 parts by weight based on 100 parts by weight of the papermaking sludge incinerator.
또한 상기 유기성 슬러지가 고화된 고화물의 악취발생 및 중금속 용출을 방지하기 위하여 pH 저감제가 더 포함되는 것이 바람직하다. In addition, it is preferable to further include a pH reducing agent to prevent odor generation and heavy metal elution of the solidified solidified organic sludge.
또한 상기 pH 저감제는 황산을 분체에 적정한 산성분말, 폴리실리콘 제조공정 중 발생하는 부산물인 SAS(Sodium Aluminum Sulfate) 분말 및 SAF(Sodium Aluminum Fluorid) 분말로 이루어진 군에서 선택된 어느 하나이거나 둘 이상의 혼합물인 것이 바람직하다. In addition, the pH reducing agent is any one or a mixture of two or more selected from the group consisting of acid powder suitable for sulfuric acid powder, sodium aluminum sulfate (SAS) powder and sodium aluminum fluoride (SAF) powder by-products generated during the polysilicon manufacturing process. It is preferable.
또한 상기 pH 저감제는 상기 제지슬러지 소각재 100중량부에 대하여, 5~50 중량부 혼입되는 것이 바람직하다. In addition, the pH reducing agent is preferably mixed 5 to 50 parts by weight based on 100 parts by weight of the papermaking sludge incineration ash.
본 발명에 의한 인공토양 제조방법은 1) 상기 고화제를 제조하는 단계; 2) 유기성 슬러지 100중량부에 대하여, 상기 고화제 5~80중량부를 계량하는 단계; 3) 계량된 상기 유기성 슬러지와 고화제를 혼합하는 단계; 및 4) 상기 유기성 슬러지와 고화제의 혼합물을 양생하는 단계;를 포함한다. Artificial soil manufacturing method according to the present invention comprises the steps of 1) preparing the hardener; 2) measuring 5 to 80 parts by weight of the solidifying agent based on 100 parts by weight of organic sludge; 3) mixing the metered organic sludge with a solidifying agent; And 4) curing the mixture of organic sludge and solidifying agent.
또한 상기 고화제에 pH 저감제가 포함되지 않은 경우, 상기 4)단계 후, 5) 상기 혼합물에 pH 저감제를 첨가하여 혼합하는 단계가 더 부가되는 것이 바람직하다. In addition, when the pH reducing agent is not included in the solidifying agent, it is preferable that after step 4), 5) adding and mixing the pH reducing agent to the mixture is further added.
또한 상기 pH저감제는 상기 제지슬러지 소각재 100중량부에 대하여 10~100중량부를 첨가하는 것이 바람직하다. In addition, the pH reducing agent is preferably added to 10 to 100 parts by weight based on 100 parts by weight of the papermaking sludge incineration ash.
본 발명에 따르면, 제지슬러지소각재와 고칼슘 슬래그 분진에 다량 함유된 CaO를 이용하여 유기성 슬러지의 함수율을 저감시키는 효과가 있다. According to the present invention, there is an effect of reducing the water content of the organic sludge by using CaO contained in a large amount of paper sludge incineration ash and high calcium slag dust.
또한, CaO의 흡수, 발열 작용으로 수분이 증발하는 효과도 있다. It also has the effect of evaporation of water due to the absorption of CaO and the exothermic action.
특히, 고칼슘 슬래그 분진에 다량 함유된 Free-CaO 및 FeO성분에 의해 수분과 접촉시 높은 발열온도와 흡수능력이 매우 우수하다. In particular, the high-calcium slag dust contains a large amount of Free-CaO and FeO, which is very exothermic and has a high exothermic temperature.
또한 pH 저감제의 고화제 제조시 선투입 또는 혼합물에 후첨가하여 고화물의 pH를 저감시켜 악취의 발생 및 중금속 용출을 방지할 수 있는 효과도 있다.In addition, in the preparation of a solidifying agent of the pH reducing agent, it is also effective to prevent the occurrence of odor and the elution of heavy metals by reducing the pH of the solidified by post-injection or post-addition to the mixture.
이하, 본 발명에 의한 유기성 슬러지 고화제 및 이를 이용한 인공토양의 제조방법을 구체적으로 설명한다. Hereinafter, the organic sludge solidifying agent according to the present invention and a manufacturing method of artificial soil using the same will be described in detail.
먼저, 본 발명에 의한 유기성 슬러지 고화제의 구성성분 및 작용을 설명한다. First, the components and actions of the organic sludge solidifying agent according to the present invention will be described.
본 발명에 의한 유기성 슬러지 고화제는 산화칼슘(CaO) 함량이 35중량%~70중량%인 제지슬러지소각재와, 산화칼슘(CaO) 함량이 40~80중량%인 고칼슘 슬래그 분진을 포함한다. The organic sludge solidifying agent according to the present invention includes a paper sludge incinerator having a calcium oxide (CaO) content of 35% to 70% by weight, and a high calcium slag dust having a calcium oxide (CaO) content of 40 to 80% by weight.
제지슬러지 소각재와 고칼슘 슬래그 분진에 다량 함유된 산화칼슘은 물과 반응하여 흡수, 발열 및 팽창하여 수산화칼슘이 된다. 이에 대한 반응식은 아래와 같다. Calcium oxide contained in paper sludge incineration ash and high calcium slag dust is reacted with water, absorbed, exothermic and expanded to become calcium hydroxide. The reaction formula is as follows.
CaO+ H2O->Ca(OH)2+15.6 mol-1 CaO + H 2 O-> Ca (OH) 2 +15.6 mol -1
또한 상기 제지슬러지소각재는 종이제조공정 중 펄프의 사용량을 줄이고 종이의 품질을 제고하기 위하여 충진제(Filler)로 석회석 미분말을 사용하게 되는데 잉여 석회석 미분말이 슬러지형태로 배출된 것을 보일러에서 소각하는 과정에서 석회석이 탈탄산된 산화칼슘의 함량이 높은 소각재가 발생하게 된다.In addition, the paper sludge incineration material uses limestone fine powder as a filler to reduce the amount of pulp used in the paper manufacturing process and to improve the quality of the paper. The limestone fine powder discharged in the form of sludge is incinerated in a boiler. Incinerator having a high content of the decarbonated calcium oxide is generated.
한편, 제철공정에서 발생되는 다량의 제철슬래그중 고로슬래그는 시멘트의 원료나 골재 대용으로 거의 전량 재활용되고 있으나, 전로 슬래그의 경우에는 Fe성분이 많이 함유되어 있고 특히 유리 CaO(Free CaO)에 의한 팽창성 때문에 토목 건자재로 재활용이 되지 못할 뿐만 아니라 전기로 슬래그의 경우에도 Fe성분이 높고 비중도 높아 건축 자재 등으로 활용되지 못하고 거의 폐기되고 있다. On the other hand, blast furnace slag among the large amount of steel slag generated in the steelmaking process is recycled almost entirely as a substitute for cement raw materials or aggregates. However, converter slag contains a large amount of Fe and is especially expandable due to free CaO (Free CaO). Therefore, not only can not be recycled as civil engineering building materials, but also in the case of electric furnace slag has a high Fe content and high specific gravity, which is not used as a building material and is almost discarded.
또한 상기 전로 슬래그 또는 전기로 슬래그 등 칼슘 함유량이 높은 슬래그를 도로기층재 등으로 활용하기 위해 입도 조정을 거치는데, 이때 분쇄하는 과정에서 집진기에 포집된 미립 분진인 슬래그 분진도 역시 주성분이 CaO 성분과 FeO 성분이 다량 함유되어 있기 때문에 흡수, 발열 및 팽창 특성이 있어 콘크리트 혼화재료로 활용이 불가능하여 현재 전량 매립처리 되고 있는 실정이다. In addition, particle size adjustment is performed in order to utilize slag having high calcium content such as converter slag or electric furnace slag as a road substrate material. At this time, the slag dust, which is the particulate dust collected in the dust collector during the crushing process, also contains the CaO component and Since it contains a large amount of FeO components, it has absorption, heat generation, and expansion characteristics, making it impossible to use as a concrete admixture.
따라서 본 발명은 콘크리트 혼화재료로 활용이 불가능한 제지슬러지 소각재와 고칼슘 슬래그 분진을 이용하는 것이다. Therefore, the present invention is to use paper sludge incineration and high calcium slag dust that can not be used as a concrete admixture.
즉, 함수율이 높은 유기성 슬러지에 산화칼슘이 다량 함유된 제지슬러지소각재와 고칼슘 슬래그 분진을 혼합하면, 위의 반응으로 수산화칼슘이 생성되면서 유기성 슬러지의 수분이 저감되는 것이다. 또한 역시 위의 반응으로 발생되는 열이 유기성 슬러지의 수분을 증발시키기 때문에 더욱더 유기성 슬러지의 함수율을 저감시킬 수 있게 되는 것이다.In other words, when the paper sludge incinerator containing a large amount of calcium oxide and high calcium slag dust are mixed with the organic sludge having a high moisture content, the water of the organic sludge is reduced while the calcium hydroxide is generated by the above reaction. In addition, since the heat generated by the above reaction evaporates the water of the organic sludge, it is possible to further reduce the moisture content of the organic sludge.
상기 고칼슘 슬래그 분진은 다량 함유된 Free-CaO 및 FeO성분에 의해 수분과 접촉시 높은 발열온도와 흡수능력이 뛰어나다. 특히, CaO성분이 다량 함유되어 고화제의 원료로 사용되고 있는 고칼슘 플라이애쉬보다 발열온도가 높고 흡수능력이 더욱 우수하여 발열제로 사용되는 생석회 및 경소백운석 등의 사용량을 절감할 수 있다. The high calcium slag dust has a high exothermic temperature and absorption ability when contacted with moisture by a large amount of free-CaO and FeO components. In particular, it contains a large amount of CaO component than the high calcium fly ash, which is used as a raw material of the solidifying agent has a higher exothermic temperature and more excellent absorption capacity, thereby reducing the amount of quicklime and light dolomite used as a heating agent.
상기 제지슬러지소각재와 고칼슘 슬래그 분진의 비표면적은 각각 2,000~9,000/g인 것이 바람직하다. 비표면적이 2,000/g 미만일 경우 미립분이 부족하여 활성도가 떨어지므로 유기성 슬러지의 고화시 함수율 저감효과가 저하되고, 비표면적이 9,000cm2/g 초과일 경우 고화제의 이송시 겉보기 밀도가 낮아져 계량 및 이송 중에 비산되고 설비 가동성이 저하된다. The specific surface area of the papermaking sludge ash and the high calcium slag dust is preferably 2,000 to 9,000 / g. If the specific surface area is less than 2,000 / g, there is a lack of fine particles and the activity is lowered. Therefore, the water content reduction effect is lowered when the organic sludge is solidified. If the specific surface area is more than 9,000 cm 2 / g, the apparent density is lowered during the transfer of the solidifying agent. It is scattered during transportation and equipment operability is lowered.
따라서 본 발명의 고화제는 콘크리트 혼화재료로 재활용이 불가능한 제지슬러지소각재와 고칼슘 슬래그 분진을 주원료로 사용하는 것이다.Therefore, the solidifying agent of the present invention is to use the paper sludge incineration ash and high calcium slag dust as a main raw material that can not be recycled as a concrete admixture.
상기 제지슬러지소각재와 고칼슘 슬래그 분진의 혼합비율은 제지슬러지소각재 100중량부에 대하여 고칼슘 슬래그 분진 10~200중량부가 바람직한데, 고칼슘 슬래그 분진의 혼입량이 10중량부 미만이면 발열성능이 떨어지고, 200중량부 초과이면 유기성 슬러지와 고화제를 혼합한 혼합물을 반죽 질기가 질어져 설비가동성이 저하된다.The mixing ratio of the papermaking sludge incinerator and the high calcium slag dust is preferably 10 to 200 parts by weight of high calcium slag dust with respect to 100 parts by weight of the papermaking sludge incinerator, and when the mixing amount of the high calcium slag dust is less than 10 parts by weight, the heat generation performance is lowered, and 200 parts by weight. When exceeded, the mixture which mixed organic sludge and a hardening | curing agent becomes dough-tough, and facility mobility falls.
또한 본 발명에 의한 고화제는 유기성 슬러지가 계절적인 요인으로 함수율이 지나치게 높거나 기타의 이유로 발열이 더 필요한 경우 발열제가 더 포함되는데, 상기 발열제는 생석회분말, 경소백운석 분말, 페트롤코우크스 소각재 분말로 이루어진 군 중에서 선택된 어느 하나이거나 둘 이상의 혼합물인 것이 바람직하다. In addition, the solidifying agent according to the present invention further includes a heat generating agent when organic sludge has a high moisture content due to seasonal factors or requires more heat for other reasons. The heat generating agent includes quicklime powder, light dolomite powder, and petroleum coke incineration powder. It is preferably any one selected from the group consisting of or a mixture of two or more.
상기 생석회분말은 석회석을 고온에서 하소하여 탈 탄산 시킨 후 일정한 입자크기의 분말로 가공한 제품으로 시중에서 일반적으로 수득되는 것으로서 CaO 함량이 85중량% 이상인 것이다. The quicklime powder is a product obtained by calcining limestone at a high temperature and then decarbonated into a powder having a constant particle size, which is generally obtained on the market, and has a CaO content of 85% by weight or more.
상기 경소백운석 분말은 백운석을 고온에서 하소하여 탈 탄산 시킨 후 일정한 입자크기의 분말로 가공한 제품으로 시중에서 일반적으로 수득되는 것으로서 CaO+MgO 함량이 80중량% 이상이다.The light dolomite powder is a product obtained by calcining dolomite at high temperature and then decarbonated into a powder having a constant particle size, which is generally obtained on the market, and has a CaO + MgO content of 80% by weight or more.
상기 페트롤코우크스 소각재는 높은 열량과 연소효율이 필요한 경우 석탄을 대신해서 사용하는 원료인데 이 역시 탈황을 위하여 석회석을 혼소하는데, 탈 탄산된 산화칼슘 입자가 소각재의 대부분을 차지하며, 수분과 만나면 흡수, 발열 및 부피팽창작용을 한다.The petroleum coke ash is a raw material used in place of coal when high calorie and combustion efficiency is required. This also mixes limestone for desulfurization, and decarbonated calcium oxide particles occupy most of the ash. , Exothermic and volume expansion.
상기 발열제는 상기 제지슬러지소각재 100중량부에 대하여 5~50중량부 혼입되는 것이 바람직하다. 상기 발열제의 혼입량이 5중량부 미만이면 슬러지와 반응할때의 발열이 부족하여 함수율 저감효과가 저하되고, 50중량부 초과이면 함수율은 많이 저감되나 강도가 너무 크게 증가되어 고화물이 단단해져 설비에 고착되는 등 생산성을 저하시킬 우려가 있다. The heat generating agent is preferably mixed 5 to 50 parts by weight based on 100 parts by weight of the papermaking sludge incinerator. If the amount of the heat generating agent is less than 5 parts by weight, the heat generation when reacting with the sludge is insufficient, and the water content reduction effect is lowered. When the amount of the heat generating agent is more than 50 parts by weight, the water content is greatly reduced, but the strength is increased so much that the solids are firmly fixed to the equipment. There is a risk of lowering the productivity.
또한 본 발명에 의한 고화제는 유기성 슬러지의 고화물인 인공토양에서 악취가 발생되지 않게 하기 위하여 황산을 규사미분, 플라이애쉬, 메타카올린 등의 분체에 적정한 산성분말, 폴리실리콘 제조공정중 발생하는 부산물인 SAS(Sodium Aluminum Sulfate) 분말 및 SAF(Sodium Aluminum Fluorid) 분말 등의 pH 저감제가 더 혼입될 수 있다. 상기 pH 저감제가 더 혼입되면 유기성 슬러지 고화물의 pH가 조속히 떨어져, 악취를 가장 많이 발생하는 pH 경계선인 12 이하로 고화물의 pH 조절이 가능해 진다. In addition, the solidifying agent according to the present invention is an acid component suitable for powders such as silica sand, fly ash, metakaolin, and by-products generated during the production process of polysilicon in order to prevent odor from occurring in artificial soil which is a solid of organic sludge. Phosphorus reducing agents such as phosphorus aluminum aluminum sulfide (SAS) powder and sodium aluminum fluoride (SAF) powder may be further incorporated. When the pH reducing agent is further mixed, the pH of the organic sludge solidified drops quickly, and the pH of the solidified is adjusted to 12 or less, which is the pH boundary that generates the most odor.
상기 pH 저감제의 혼입량은 고화제에 선투입하여 제조할 경우 상기 제지슬러지소각재 100중량부에 대하여 5~50중량부를 혼입한다. 만약, pH 저감제의 혼입량이 제지슬러지소각재 100중량부에 대하여 5중량부 미만이면 pH 저감효과가 없고, 50중량부를 초과하면 경제성이 저하되고 고화물이 질기가 질어지게 된다.The mixing amount of the pH reducing agent is mixed with 5 to 50 parts by weight based on 100 parts by weight of the papermaking sludge incinerator when prepared by pre-injection into a solidifying agent. If the amount of the pH reducing agent is less than 5 parts by weight based on 100 parts by weight of the papermaking sludge incinerator, there is no pH reduction effect. When the amount of the pH reducing agent is more than 50 parts by weight, the economical efficiency is reduced and the solids become tough.
또한 상기 pH 저감제를 유기성 슬러지 고화물에 후첨가할 경우, 상기 제지슬러지소각재 100중량부에 대하여 10~100 중량부를 후첨가하여 혼합한다. 만약, pH 저감제의 혼입량이 제지슬러지소각재 100중량부에 대하여 10중량부 미만이면 pH 저감효과가 없고, 100중량부를 초과하면 경제성이 저하되고 고화물의 질기가 질어지게 된다.In addition, when the pH reducing agent is post-added to the organic sludge solidified, 10 to 100 parts by weight with respect to 100 parts by weight of the paper sludge incineration ash is added and mixed. If the amount of the pH reducing agent is less than 10 parts by weight based on 100 parts by weight of the papermaking sludge incinerator, there is no pH reduction effect. If the amount of the pH reducing agent exceeds 100 parts by weight, the economical efficiency is lowered and the solidity of the solids is increased.
이하에서는 본 발명에 의한 인공토양 제조방법을 설명한다. Hereinafter will be described the artificial soil manufacturing method according to the present invention.
먼저, 상술한 고화제를 제조한 다음, 하수슬러지 100중량부에 대하여 고화제 5~80중량부를 균일하게 혼합한다. 고화제를 5중량부 미만으로 혼합하면 함수율이 충분히 저감되지 않아 복토재로서 사용이 불가능하고, 80중량부를 초과하여 혼합하면 함수율이 너무 낮아져 고화물이 비산되고 복토작업이 곤란해지며 경제성이 저하된다. First, the above-mentioned solidifying agent is prepared, and then 5 to 80 parts by weight of the solidifying agent is uniformly mixed with respect to 100 parts by weight of sewage sludge. If the content of the solidifying agent is mixed at less than 5 parts by weight, the water content is not sufficiently reduced, so that it cannot be used as a cover material. If the content is more than 80 parts by weight, the water content is too low, the solids are scattered, the cover work is difficult, and the economic efficiency is reduced.
다음으로 상기 하수슬러지와 고화제의 혼합물을 함수율이 60중량%이하가 될 때까지 상온양생 또는 가열양생한다. Next, the mixture of the sewage sludge and the hardener is cured at room temperature or heated until the moisture content is 60% by weight or less.
마지막으로 필요한 경우, 상기 혼합물에 pH 저감제를 후첨가하여 혼합한다.
Finally, if necessary, the mixture is post-added with a pH reducing agent.
이하에서는 본 발명에 따른 고화제를 이용해 제조된 인공토양의 실시예와, 상기 실시예와 물성을 비교하기 위한 비교예의 성능을 비교, 분석하였다.
Hereinafter, the performance of the embodiment of the artificial soil prepared using the solidifying agent according to the present invention and the comparative example for comparing the properties with the above example were analyzed.
실시예Example 1 One
먼저, 산화칼슘 함량이 47중량%인 제지슬러지소각재 100중량부에 대하여, CaO 함량이 57중량%인 고칼슘 슬래그 분진 50중량부와, pH 저감제로서 SAS(Sodium Aluminum Sulfate) 분말 15중량부를 균일하게 혼합하여 고화제를 제조하였다. First, 50 parts by weight of high calcium slag dust having a CaO content of 57% by weight, and 15 parts by weight of SAS (Sodium Aluminum Sulfate) powder as a pH reducing agent, to 100 parts by weight of papermaking sludge incinerator having a calcium oxide content of 47% by weight. Mixing to prepare a hardener.
다음으로 함수율이 81중량%인 하수슬러지 100중량부에 대하여, 위와 같이 제조된 고화제 50중량부를 혼합하여 상온양생하여 인공토양을 제조하였다.
Next, with respect to 100 parts by weight of sewage sludge having a water content of 81% by weight, 50 parts by weight of the solidifying agent prepared as described above was mixed to room temperature to prepare artificial soil.
실시예Example 2 2
먼저, 산화칼슘 함량이 47중량%인 제지슬러지소각재 100중량부에 대하여, CaO 함량이 57중량%인 고칼슘 슬래그 분진 30중량부와, 발열제로서 경소백운석 분말 60중량%와 생석회 분말 40중량%로 이루어진 혼합물 20중량부와, pH 저감제로서 SAS(Sodium Aluminum Sulfate) 분말 15중량부를 균일하게 혼합하여 고화제를 제조하였다. First, with respect to 100 parts by weight of the papermaking sludge incinerator having a calcium oxide content of 47% by weight, 30 parts by weight of high calcium slag dust having a CaO content of 57% by weight, and 60% by weight of the light dolomite powder and 40% by weight of quicklime powder as a heating agent. A solidifying agent was prepared by uniformly mixing 20 parts by weight of the mixture and 15 parts by weight of sodium aluminum sulfate (SAS) powder as a pH reducing agent.
다음으로 함수율이 81중량%인 하수슬러지 100중량부에 대하여, 위와 같이 제조된 고화제 45중량부를 혼합하여 상온양생하여 인공토양을 제조하였다.
Next, with respect to 100 parts by weight of sewage sludge having a water content of 81% by weight, 45 parts by weight of the hardener prepared as described above was mixed to cure at room temperature to prepare artificial soil.
비교예Comparative example 1 One
먼저, 산화칼슘 함량이 47중량%인 제지슬러지소각재 100중량부에 대하여, 로내탈황방식 석탄연소보일러에서 발생된 산화칼슘 함량이 54중량%인 고칼슘 플라이애쉬 50중량부와, pH 저감제로서 SAS(Sodium Aluminum Sulfate) 분말 15중량부를 균일하게 혼합하여 고화제를 제조하였다. First, with respect to 100 parts by weight of the papermaking sludge incinerator having a calcium oxide content of 47% by weight, 50 parts by weight of the high calcium fly ash having a content of 54% by weight of calcium oxide generated in the furnace desulfurization type coal combustion boiler, and SAS (as a pH reducing agent) Sodium Aluminum Sulfate) 15 parts by weight of the powder was uniformly mixed to prepare a hardener.
다음으로 함수율이 81중량%인 하수슬러지 100중량부에 대하여, 위와 같이 제조된 고화제 45중량부를 혼합하여 상온양생하여 인공토양을 제조하였다.
Next, with respect to 100 parts by weight of sewage sludge having a water content of 81% by weight, 45 parts by weight of the hardener prepared as described above was mixed to cure at room temperature to prepare artificial soil.
비교예Comparative example 2 2
먼저, 산화칼슘 함량이 47중량%인 제지슬러지소각재 100중량부에 대하여, 발열제로서 경소백운석 분말 60중량%와 생석회 분말 40중량%로 이루어진 혼합물 50중량부와, pH 저감제로서 SAS(Sodium Aluminum Sulfate) 분말 15중량부를 균일하게 혼합하여 고화제를 제조하였다. First, with respect to 100 parts by weight of the papermaking sludge incinerator having a calcium oxide content of 47% by weight, 50 parts by weight of a mixture consisting of 60% by weight of a light dolomite powder and 40% by weight of quicklime powder as a heating agent, and SAS (Sodium Aluminum Sulfate) as a pH reducing agent ) 15 parts by weight of powder was mixed uniformly to prepare a solidifying agent.
다음으로 함수율이 81중량%인 하수슬러지 100중량부에 대하여, 위와 같이 제조된 고화제 45중량부를 혼합하여 상온양생하여 인공토양을 제조하였다.
Next, with respect to 100 parts by weight of sewage sludge having a water content of 81% by weight, 45 parts by weight of the hardener prepared as described above was mixed to cure at room temperature to prepare artificial soil.
인공토양의 성능시험방법 및 결과Performance test method and result of artificial soil
아래 표 1에 나타낸 바와 같이 함수량 측정은 KS F 2306 방법에 의해 실시하고 압축강도시험은 KS F 2343 방법에 의해 실시하였다.
As shown in Table 1 below, the water content was measured by the KS F 2306 method and the compressive strength test was performed by the KS F 2343 method.
(1) 함수량 변화(1) water content change
시간경과에 따라 상기 실시예 1, 2 및 비교예 1, 2에 의해 제조된 인공토양의 함수율을 아래 표 2에 나타내었다. 표 2에서 확인되는 바와 같이, 고화제 혼합 전 하수슬러지의 함수율이 81중량%였으나, 시간이 지남에 따라 함수비가 급격히 저감된다는 것을 알 수 있다. 함수율이 큰 폭으로 저감되는 것은 상술한 바와 같이, 고화제가 하수슬러지와 혼합되는 즉시 발열반응이 일어나고 수화반응이 동시에 진행되기 때문이다. 또한 시간이 경과함에 따라 수화물 생성 및 자연건조에 의해 서서히 함수율은 줄어드는 결과를 보여주고 있다. 자연 양생 3일 이후에 복토재로 활용시 취급이 용이할 뿐 아니라 압축강도 증가에도 기여할 것으로 기대된다. The moisture content of artificial soils prepared by Examples 1 and 2 and Comparative Examples 1 and 2 according to time is shown in Table 2 below. As confirmed in Table 2, although the water content of the sewage sludge before the solidifying agent mixing was 81% by weight, it can be seen that the water content is rapidly reduced over time. The moisture content is greatly reduced because, as described above, the exothermic reaction occurs immediately after the solidifying agent is mixed with the sewage sludge and the hydration reaction proceeds simultaneously. Also, as the time passes, the water content gradually decreases due to the formation of hydrate and natural drying. After 3 days of natural curing, it is expected to not only be easy to handle but also to increase the compressive strength.
특히, 실시예 1은 발열제를 별도로 추가하지 않았음에도 불구하고, 비교예 2와 거의 유사한 정도의 함수율 저감효과를 나타내었다. 또한 고칼슘 플라이애쉬를 사용한 비교예 1과 비교하여 고화물의 함수량이 더욱 감소되는 것을 확인할 수 있는데, 이는 고칼슘 슬래그 분진이 고칼슘 플라이애쉬에 비해 발열 및 수분의 흡수능력이 더욱 크기 때문이다. In particular, Example 1 exhibited a water content reduction effect almost similar to that of Comparative Example 2, even though no exothermic agent was added. In addition, it can be seen that the water content of the solids is further reduced compared to Comparative Example 1 using the high calcium fly ash, because the high calcium slag dust has a greater heat absorption and moisture absorption capacity than the high calcium fly ash.
이와 같이 실시예1이 비교예1보다 슬러지의 함수량을 급격히 저감시키는 것은 고칼슘 슬래그 분진이 포함되기 때문으로 볼 수 있다. 즉, 고칼슘 슬래그 분진에 다량 함유된 Free-CaO 및 FeO성분에 의해 수분과 접촉시 고칼슘 플라이애쉬에 비하여 발열온도가 높고 흡수능력이 더욱 우수하여 슬러지의 함수량을 급격하게 저감되는 것이다. 따라서 본 발명에 의하면 비교예2에 비해 동일한 함수량 저감효과를 나타내기 위해 생석회 등의 발열제 사용량을 절감할 수 있는 것이다.
Thus, the reason why Example 1 drastically reduces the water content of the sludge than Comparative Example 1 may be considered to include high calcium slag dust. That is, by contacting with water by the free-CaO and FeO components contained in a large amount of high calcium slag dust, the exothermic temperature is higher than the high calcium fly ash, and the water absorption ability is superior, so that the water content of the sludge is drastically reduced. Therefore, according to the present invention, it is possible to reduce the amount of heat generating agent such as quicklime in order to exhibit the same water content reducing effect as in Comparative Example 2.
(2) 일축압축강도의 변화(2) Change in uniaxial compressive strength
아래 표 3은 실시예 1에 의해 제조된 인공토양의 일축압축강도를 나타낸 것이다. 이를 통해 알 수 있는 바와 같이, 양생 3일에, 실시예 1은 3.4kgf/cm2, 비교예 1은 2.4kgf/cm2로 나타났다. Table 3 below shows the uniaxial compressive strength of the artificial soil prepared by Example 1. As can be seen through the three days of curing, Example 1 was found to be 3.4kgf / cm 2 , Comparative Example 1 was 2.4kgf / cm 2 .
이는 복토재의 강도 기준인 1.0kgf/cm2를 크게 상회하는 값이며, 연약지반 개량재, 차수재, 뒷채움재 등 다양한 지반용 재료로도 활용할 수 있는 충분한 강도 발현을 보였다. 이것은 고화제와 혼합시 흡수발열반응에 의해 수분절감 및 하수슬러지의 개질이 일어나 입자의 단립화를 이루어 압밀 촉진 효과를 얻을 수 있고 CaO와 SiO2 성분에 의해 칼슘실리케이트 반응이 유도되어 압축강도를 확보할 수 있는 고화반응이 일어나 강도를 증진시키기 때문이다. 이에 더하여 고화제의 흡수성에 의해 하수슬러지의 함수율이 상대적으로 낮아지며 고화제의 흡수성 및 이온교환, 포졸란 및 탄산화 반응에 의해 미립자인 점토, 콜로이드 성분이 단립화되고 이에 따라 입도분포가 변화하여 양질토로 개량되어 일축압축강도가 증가한다고 판단된다. This value greatly exceeds 1.0kgf / cm 2 , which is the strength standard of cover material, and showed sufficient strength that can be used as various ground materials such as soft ground improvement material, water repellent material, and backfill material. This is because when the mixture with the solidifying agent is mixed with water, the water is reduced and the sewage sludge is reformed, so that the solidification of the particles can be achieved and the calcium silicate reaction is induced by the CaO and SiO 2 components, This is because the solidification reaction that can be performed occurs to increase the strength. In addition, the water content of the sewage sludge is relatively low due to the water absorptivity of the solidifying agent and the clay and colloidal components, which are fine particles, are isolated by the absorption property, ion exchange, pozzolanization and carbonation reaction of the solidifying agent, And the uniaxial compressive strength is increased.
특히, 실시예는 비교예와 달리 고칼슘 슬래그 분진이 더 포함되어 있어 흡수 발열반응에 의한 수분절감 및 슬러지의 개질효과가 더욱 상승될 뿐 아니라 미립분 형태의 슬래그 성분이 수산화칼슘의 알칼리 자극을 받아 산성피막이 파괴되면서 잠재수경성이 활성화되어 고화강도를 증가시키게 된다. In particular, unlike the comparative example, the embodiment further includes high calcium slag dust, which further increases the water saving and sludge reforming effect due to the absorption exothermic reaction, and the acidic film is formed by the alkaline stimulation of the calcium hydroxide particles in the form of fine particles. As it breaks down, the latent hydroponic system is activated, increasing the solidification strength.
Claims (11)
산화칼슘(CaO) 함량이 35~70중량%인 제지슬러지소각재 100중량부에 대하여, 산화칼슘(CaO) 함량이 40~80중량%인 고칼슘 슬래그 분진 10~200중량부를 포함하며,
상기 제지슬러지 소각재 및 고칼슘 슬래그 분진은 비표면적이 2,000~9,000cm2/g인 것을 특징으로 하는 유기성 슬러지 고화제.
In the solidifying agent for solidifying organic sludge,
It contains 10 to 200 parts by weight of high calcium slag dust with a calcium oxide (CaO) content of 40 to 80% by weight based on 100 parts by weight of papermaking sludge incinerator having a calcium oxide (CaO) content of 35 to 70% by weight.
The paper sludge incineration ash and high calcium slag dust has a specific surface area of 2,000 ~ 9,000 cm 2 / g of organic sludge solidifying agent.
상기 유기성 슬러지와의 발열반응을 증가시키기 위하여 발열제가 더 포함되는 것을 특징으로 하는 유기성 슬러지 고화제.
The method of claim 1,
An organic sludge solidifying agent, characterized in that it further comprises a heating agent to increase the exothermic reaction with the organic sludge.
상기 발열제는 생석회 분말, 경소백운석 분말 및 페트롤코우크스 소각재 분말로 이루어진 군 가운데 선택된 어느 하나이거나 둘 이상의 혼합물인 것을 특징으로하는 유기성 슬러지 고화제.
The method of claim 3,
The heating agent is an organic sludge solidifying agent, characterized in that any one or a mixture of two or more selected from the group consisting of quicklime powder, light dolomite powder and petroleum coke ash ash powder.
상기 발열제는 상기 제지슬러지 소각재 100중량부에 대하여, 5~50 중량부 혼입되는 것을 특징으로 하는 유기성 슬러지 고화제.
5. The method of claim 4,
The heat generating agent is an organic sludge solidifying agent, characterized in that mixed 5 to 50 parts by weight based on 100 parts by weight of the papermaking sludge incineration.
상기 유기성 슬러지가 고화된 고화물의 악취발생 및 중금속 용출을 방지하기 위하여 pH 저감제가 더 포함되는 것을 특징으로 하는 유기성 슬러지 고화제.
The method of claim 1,
Organic sludge solidifying agent further comprises a pH reducing agent in order to prevent odor generation and heavy metal elution of the solidified solidified organic sludge.
상기 pH 저감제는 황산을 분체에 적정한 산성분말, 폴리실리콘 제조공정 중 발생하는 부산물인 SAS(Sodium Aluminum Sulfate) 분말 및 SAF(Sodium Aluminum Fluorid) 분말로 이루어진 군에서 선택된 어느 하나이거나 둘 이상의 혼합물인 것을 특징으로 하는 유기성 슬러지 고화제.
The method according to claim 6,
The pH reducing agent may be any one or a mixture of two or more selected from the group consisting of acid powder suitable for sulfuric acid powder, sodium aluminum sulfate (SAS) powder and sodium aluminum fluoride (SAF) powder which are by-products generated during the polysilicon manufacturing process. Characterized organic sludge solidifying agent.
상기 pH 저감제는 상기 제지슬러지 소각재 100중량부에 대하여, 5~50 중량부 혼입되는 것을 특징으로 하는 유기성 슬러지 고화제.
The method of claim 7, wherein
The pH reducing agent is an organic sludge solidifying agent, characterized in that mixed 5 to 50 parts by weight based on 100 parts by weight of the papermaking sludge incineration.
2) 유기성 슬러지 100중량부에 대하여, 상기 고화제 5~80중량부를 계량하는 단계;
3) 계량된 상기 유기성 슬러지와 고화제를 혼합하는 단계;
4) 상기 유기성 슬러지와 고화제의 혼합물을 양생하는 단계; 및
5) 상기 고화제에 pH 저감제가 포함되지 않은 경우, 상기 혼합물에 pH 저감제를 첨가하여 혼합하는 단계;를 포함하는 것을 특징으로 하는 인공토양 제조방법.
1) preparing a solidifying agent of any one of claims 1 and 3 to 8;
2) measuring 5 to 80 parts by weight of the solidifying agent based on 100 parts by weight of organic sludge;
3) mixing the metered organic sludge with a solidifying agent;
4) curing the mixture of organic sludge and solidifying agent; And
5) If the pH reducing agent is not included in the hardener, adding a pH reducing agent to the mixture and mixing; artificial soil manufacturing method comprising a.
상기 pH저감제는 상기 제지슬러지 소각재 100중량부에 대하여 10~100중량부를 첨가하는 것을 특징으로 하는 인공토양 제조방법. 10. The method of claim 9,
The pH reducing agent is artificial soil manufacturing method, characterized in that for adding 10 to 100 parts by weight based on 100 parts by weight of the papermaking sludge incineration.
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| PCT/KR2012/002033 WO2013032086A1 (en) | 2011-09-02 | 2012-03-21 | Organic sludge hardener, and method for manufacturing artificial soil using same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101513647B1 (en) | 2013-09-03 | 2015-04-21 | 그린에너지개발 주식회사 | Solidification agent manufacturing method and solidification agent and sludge solidification treatment method utilizing solidification agent |
| CN105613103A (en) * | 2015-09-07 | 2016-06-01 | 扬州大学 | Method for synthesizing artificial soil from sediment |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101535910B1 (en) * | 2013-12-06 | 2015-07-10 | 주식회사 씨엠디기술단 | Soil improvement composition |
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| KR101722217B1 (en) | 2015-06-30 | 2017-04-03 | (주)기륭산업 | Agent for reducing foul smell and moisture content of sewage or wastewater sludge and manufacturing method thereof |
| KR101683760B1 (en) | 2016-03-10 | 2016-12-07 | 늘솔자원개발 주식회사 | Solidifying agent composition |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100919620B1 (en) * | 2009-02-06 | 2009-09-30 | 유종희 | The artificial soil composition and its manufacturing method that using the industrial by-product for recovering an abandoned quarry mining |
| KR101055317B1 (en) * | 2011-02-15 | 2011-08-09 | 주식회사 씨엠디기술단 | Organic sludge hardener and artificial soil production method using the same |
-
2011
- 2011-09-27 KR KR1020110097233A patent/KR101289825B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100919620B1 (en) * | 2009-02-06 | 2009-09-30 | 유종희 | The artificial soil composition and its manufacturing method that using the industrial by-product for recovering an abandoned quarry mining |
| KR101055317B1 (en) * | 2011-02-15 | 2011-08-09 | 주식회사 씨엠디기술단 | Organic sludge hardener and artificial soil production method using the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101513647B1 (en) | 2013-09-03 | 2015-04-21 | 그린에너지개발 주식회사 | Solidification agent manufacturing method and solidification agent and sludge solidification treatment method utilizing solidification agent |
| CN105613103A (en) * | 2015-09-07 | 2016-06-01 | 扬州大学 | Method for synthesizing artificial soil from sediment |
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