KR100966784B1 - Manufacturing method solidfication agent for oganic or inorganic waste resouce of useing retreat mathod - Google Patents
Manufacturing method solidfication agent for oganic or inorganic waste resouce of useing retreat mathod Download PDFInfo
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- KR100966784B1 KR100966784B1 KR1020090077124A KR20090077124A KR100966784B1 KR 100966784 B1 KR100966784 B1 KR 100966784B1 KR 1020090077124 A KR1020090077124 A KR 1020090077124A KR 20090077124 A KR20090077124 A KR 20090077124A KR 100966784 B1 KR100966784 B1 KR 100966784B1
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- South Korea
- Prior art keywords
- sulfate
- organic
- solidifying agent
- inorganic waste
- hydrate
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- 239000010805 inorganic waste Substances 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 63
- 238000000034 method Methods 0.000 claims abstract description 56
- 239000010815 organic waste Substances 0.000 claims abstract description 47
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 39
- 238000007711 solidification Methods 0.000 claims abstract description 29
- 230000008023 solidification Effects 0.000 claims abstract description 29
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003513 alkali Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 20
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000292 calcium oxide Substances 0.000 claims abstract description 16
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 16
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 11
- 235000019738 Limestone Nutrition 0.000 claims abstract description 6
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004568 cement Substances 0.000 claims abstract description 6
- 239000006028 limestone Substances 0.000 claims abstract description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 5
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 5
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 4
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims abstract description 4
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 235000012245 magnesium oxide Nutrition 0.000 claims abstract description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 4
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims abstract description 4
- 229910052939 potassium sulfate Inorganic materials 0.000 claims abstract description 4
- 235000011151 potassium sulphates Nutrition 0.000 claims abstract description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 4
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 4
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 claims abstract 2
- 239000000126 substance Substances 0.000 claims description 12
- 239000011790 ferrous sulphate Substances 0.000 claims description 5
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 5
- 150000004677 hydrates Chemical class 0.000 claims description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 4
- YHGPYBQVSJBGHH-UHFFFAOYSA-H iron(3+);trisulfate;pentahydrate Chemical compound O.O.O.O.O.[Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O YHGPYBQVSJBGHH-UHFFFAOYSA-H 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- JLFVIEQMRKMAIT-UHFFFAOYSA-N ac1l9mnz Chemical compound O.O.O JLFVIEQMRKMAIT-UHFFFAOYSA-N 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 27
- 229910021653 sulphate ion Inorganic materials 0.000 abstract description 14
- 229910052925 anhydrite Inorganic materials 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 5
- 229940095672 calcium sulfate Drugs 0.000 abstract 1
- 235000011132 calcium sulphate Nutrition 0.000 abstract 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 239000010802 sludge Substances 0.000 description 14
- 239000002689 soil Substances 0.000 description 14
- 235000019645 odor Nutrition 0.000 description 12
- 239000010801 sewage sludge Substances 0.000 description 11
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 10
- 235000011941 Tilia x europaea Nutrition 0.000 description 10
- 239000004571 lime Substances 0.000 description 10
- 230000006641 stabilisation Effects 0.000 description 9
- 238000011105 stabilization Methods 0.000 description 9
- 239000011575 calcium Substances 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 239000010440 gypsum Substances 0.000 description 6
- 229910052602 gypsum Inorganic materials 0.000 description 6
- 230000020169 heat generation Effects 0.000 description 6
- 150000004682 monohydrates Chemical class 0.000 description 6
- 238000004064 recycling Methods 0.000 description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- -1 sulfate compound Chemical class 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000002361 compost Substances 0.000 description 4
- 229910001653 ettringite Inorganic materials 0.000 description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 4
- 244000144972 livestock Species 0.000 description 4
- 238000012958 reprocessing Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000008213 purified water Substances 0.000 description 3
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000010794 food waste Substances 0.000 description 2
- 238000010169 landfilling Methods 0.000 description 2
- 244000000010 microbial pathogen Species 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 208000021760 high fever Diseases 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000001139 pH measurement Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002510 pyrogen Substances 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5209—Regulation methods for flocculation or precipitation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/96—Methods for the preparation of sulfates in general
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Geology (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
본 발명은 유,무기성 폐자원용 고화제 제조방법에 관한 것으로, 보다 상세하게는 유,무기성 폐자원에 괴질화 시킨 황산염발열체(Mono hydrate)와 알카리물질, CaSO4를 혼용한 건조된 황산염(Mono hydrat) 고화제를 이용한 유,무기성 폐자원의 고화처리방법으로써 폐자원의 위해성의 안정화와 더불어 악취 및 암모니아가스(NH3Gas)의 저감이 가능한 유무기성 폐자원의 신속 고화 처리를 위한 것이다.The present invention relates to a method for preparing an solidifying agent for organic and inorganic waste resources, and more particularly, to a dried sulphate mixed with a monohydrate and an alkaline substance, CaSO 4 , which is agglomerated with organic and inorganic waste resources. (Mono hydrat) A solidification treatment method for organic and inorganic waste resources using a solidifying agent for the rapid solidification treatment of organic and inorganic waste resources capable of stabilizing the risk of waste resources and reducing odor and ammonia gas (NH 3 Gas). will be.
국내에서 발생하는 하수 및 정수 슬러지는 전국의 하수 처리장과 공단 종말처리장, 그리고 각 단일 공장이나 공단에서 하루 3,000톤 이상의 슬러지가 발생하고 있으며 대부분이 매립되거나 해양에 투기되고 있다.Sewage and water sludge produced in Korea generate more than 3,000 tons of sludge per day from sewage treatment plants, industrial complexes, and end plants, and each single plant or industrial complex, most of which are landfilled or dumped at sea.
그러나 수분이 80%가량 포함되어 있는 슬러지는 매립할 경우 발생하는 문제점이 많아 매립지의 반입을 꺼리는 실정이며 바다에 버리는 것도 한계가 있기 때문에 슬러지를 완벽하게 처리하기 위한 기술의 개발은 선진국 등에서 이미 다양하게 시도되고 있다.However, sludge containing about 80% of water has many problems that occur when it is landfilled, and it is reluctant to bring landfill into landfill. It is trying.
또한 슬러지에는 유기물이 포함되어 있어 적절하게 활용하면 에너지를 회수할 수 있지만 폐기할 경우에는 악취 발생은 물론이고 2차 오염의 원인이 되기도 하고, 유효자원의 낭비라는 측면에서 가능한 범위에서 자원의 재활용되는 것이 바람직하다.In addition, the sludge contains organic matter, so if used properly, energy can be recovered, but when disposed, it can cause not only bad odor, but also secondary pollution, and recycling of resources to the extent possible in terms of waste of effective resources. It is preferable.
폐석회는 석회석, 백암, 패각 등을 물리, 화학적으로 가공 처리하여 생석회, 소석회, 탄산석회, 소다회 등을 생산하는 과정에서 발생되는 석회석 잔류물을 통칭하는 개념으로, 상기 폐석회는 환경오염 물질로서 현재 매립과 같은 방법으로 처리되고 있으나, 매립처리는 자원 재활용의 면에서 바람직하지 못하였다. 이에, 폐석회를 재활용하는 다양한 시도가 이루어졌다. 예컨대, 공유수면 매립지의 성토재 폐자원 매립 시설의 복토재로서 용도를 지정받았으나, 수분함량이 많을 뿐 아니라 악취가 많이 생성되는 문제가 있었고, 폐석회를 이용한 석회질 비료의 개발이 이루어졌으나, 투자에 비해 경쟁력이 낮고, 계절적인 특성에 의한 물류 비용 증가 등의 이유로 상업화되지 못하였다. 한편, 폐석회를 이용한 보도블록 및 벽돌이 개발됐으나, KS 규격에 미달되고 폐석회 재활용율이 떨어져 생산이 이루어지고 있지 않다. 폐석회를 시멘트 원료 및 첨가제로서 개발하려는 시도도 있었으나, 시설 투자비 등의 문제로 실현되지 못하였다.Waste lime is a concept that collectively refers to limestone residues generated in the process of producing quicklime, slaked lime, carbonate lime, soda ash, etc. by physically and chemically processing limestone, white rock, shell, etc. The waste lime is an environmental pollutant. Currently, the landfill is treated in the same way as landfilling, but landfilling is not preferable in terms of resource recycling. Accordingly, various attempts have been made to recycle waste lime. For example, although it was designated for use as a cover material for landfill waste landfill facilities in common watershed landfills, there was a problem that not only water content was high but also bad odors were generated, and the development of calcite fertilizer using waste lime was more competitive than investment. It was not commercialized due to the low cost and increased logistics costs due to seasonal characteristics. Meanwhile, sidewalk blocks and bricks using waste lime have been developed, but they are not produced because they fall short of KS standards and have a low recycling rate of waste lime. Attempts have been made to develop waste lime as a cement raw material and additive, but this has not been realized due to problems such as facility investment costs.
폐석고는 탈황공정 및 인산, 불산, 붕소, 티타늄 제조 과정시에 대량으로 발생하는데 이렇게 생산되는 석고는 자체내에 유해불순물을 함유하고 있어, 시멘트 및 석고보드 등의 제품에 직접적으로 사용될 경우 강도 및 내구성을 저하시킬뿐 아니라 처리량의 한계가 있었다. 또한 그대로 자연에 퇴적하면 이로 인한 지하수 오염 위험이 커지는 문제가 있었다. 나아가, 현재까지는 폐석고의 재활용을 위해서는 세척, 중화, 하소, 제립 등의 복잡한 정제 과정을 통해서만 상기 폐석고를 재활용할 수 있었다.Waste gypsum is produced in large quantities in the process of desulfurization and in the process of manufacturing phosphoric acid, hydrofluoric acid, boron, and titanium. The gypsum produced in this way contains harmful impurities in itself, which can be used directly for products such as cement and gypsum board. In addition to lowering, there was a limit in throughput. In addition, there is a problem that the risk of groundwater contamination is increased if it is deposited in nature as it is. Furthermore, to date, the waste gypsum can be recycled only through a complex purification process such as washing, neutralizing, calcining, and granulation.
준설토는 건설현장 등에서 발생하는 무기성 폐자원과 육상 준설토, 항만 준설토, 해안 준설토로 나누고 고함수율의 수분(100 ~ 250%)과 대량의 유기물의 함유로 인해 이차 환경오염 피해가 큰 물질로 주로 해양매립에 의존하고 있어서 해양 오염의 한 원인으로 지적되고 있다.Dredged soil is divided into inorganic waste resources generated at construction sites, land dredged soil, harbor dredged soil, and coastal dredged soil. Relying on landfills is one of the causes of marine pollution.
고함수의 슬러지를 처리하는 방법으로서 물리적 처리방법 중 환경 분야에서 많이 사용하고 있는 초음파를 이용하여 탈수성을 극대화시키는 방법이 제시되고 있다. 이 초음파 이용법은 슬러지에 초음파를 가하여 초음파 에너지에 의해 슬러지내 제거가 힘든 내부 및 결합수의 결합을 파괴. 분리하는 원리를 이용한 것이다.As a method of treating high water sludge, a method of maximizing dehydration using ultrasonic waves, which is widely used in the environmental field, has been proposed. This ultrasonic method applies ultrasonic waves to the sludge and destroys the bond between the inner and the bound water which is difficult to remove in the sludge by ultrasonic energy. It uses the principle of separation.
한편 고형화 처리방법은 높은 함수비를 가지고 있는 탈수 슬러지에 고화제를 첨가한 후 공학적으로 활용하는 것이다. 이는 탈수 슬러지에 고화제를 첨가하여 슬러지의 물리적 성상, 화학적 성상을 개선해 작업능률의 촉진, 중금속류 등 유해물 질의 무해화, 안정화를 포틀랜드 시멘트, 조강 시멘트, 고화시멘트 등 각종 시멘트, 알루미늄계 특수 시멘트, 아스팔트, 플라스틱, 생석회 등이 사용되고 있다.On the other hand, the solidification treatment method is an engineering method after adding a solidifying agent to dewatered sludge having a high water content. It adds a solidifying agent to dewatered sludge to improve the physical and chemical properties of the sludge to promote work efficiency and to prevent harmful substances such as heavy metals and stabilization. , Plastic and quicklime are used.
상기 고형화 처리방법에 사용되는 고화제를 제조하는 예로서 국내특허출원 제2004-61295호 에서는 사업장 폐자원과 황산제일철 분쇄물 및 강알카리계 분말을 혼합하여 하수 슬러지 처리를 위한 고화제를 제조하는 방법이 제안되었다.As an example of preparing a solidifying agent used in the solidification treatment method, Korean Patent Application No. 2004-61295 discloses a method for preparing a solidifying agent for sewage sludge treatment by mixing waste resources, ferrous sulfate crushed powder, and strong alkali powders at a workplace. This has been proposed.
상기 방법은 폐자원인 황산 제일철을 재활용한다는 점에서 효과를 가지지만, 분쇄, 혼합, 방열, 2차분쇄 및 2차혼합단계를 거쳐 고화제를 제조하고 상기 제조된 고화제를 하수 슬러지에 첨가하여 하수 슬러지를 고형화하는 복잡한 공정을 거쳐야만 한다.The method is effective in recycling waste iron, ferrous sulphate, but a solidifying agent is prepared through crushing, mixing, heat dissipation, secondary grinding, and secondary mixing, and adding the prepared solidifying agent to sewage sludge. It must go through a complicated process of solidifying sewage sludge.
이러한 방법은, 다공정으로 인한 공정 관리의 어려움 및 생산 비용의 과다발생 등의 문제점 뿐만 아니라 제조된 고화제를 하수 슬러지에 첨가하기 전에 사일로내에 투입하는 경우, 적절한 환경을 조성해 주지 못하면, 고화제가 사일로 내에서 급격하게 자체 고화되어 사일로를 폐기시켜야하는 경우도 종종 발생한다. 또한 상기 방법은 무기성 폐자원에 적용하는데도 한계가 있었다.This method is not only difficult to control the process due to the multi-process and excessive production cost, but also when the prepared solidifying agent is added into the silo before adding to the sewage sludge, the solidifying agent may not be formed. It often happens that silos are rapidly self-solidifying in silos and have to be disposed of. In addition, the method has limitations in application to inorganic waste resources.
본 발명은, 표면을 괴질화 시킨 황산염과 알카리물질, CaSO4를 이용한 고황산염 고화제를 제조하고, 이를 이용해 유무기성 폐자원의 급격한 수분증발, 악취저감, 유해 병원 미생물 사멸, 슬러지 내부 수분과 결합된 침상의 결정 에터링자이트(Ettringite)(3CaO . Al2O3 . 3CaSO4.. 32H2O)를 생성시킴으로써, 고화체의 조기 강도 발현을 유도하여 재활용이 가능한 형태로의 신속히 전환이 되는 고화처리 방법을 제공하되, 유.무기성 폐자원의 고화처리를 위한 고화제 제조방법을 제공하기 위한 것이다.The present invention is to prepare a high sulphate solidifying agent using a sulfate and alkali material, CaSO 4 to harden the surface, by using this, rapid moisture evaporation of organic inorganic waste resources, odor reduction, harmful pathogenic microorganisms, combined with sludge internal moisture By producing crystalline Ettringite (3CaO.Al 2 O 3 .3CaSO 4. .32H 2 O) of the acicular bed, the solidification which induces the early strength development of the solid and rapidly converts it into a form that can be recycled. To provide a treatment method, but to provide a method for producing a solidifying agent for the solidification treatment of organic and inorganic waste resources.
본 발명의 다른 목적은 상기 재처리 방법으로 처리된 유,무기성 폐자원을 매립용 복토제 및 부숙토, 퇴비 및 유기성 원료등으로 폭넓게 활용될 수 있는 고화처리방법을 제공한다.Another object of the present invention is to provide a solidification treatment method that can be widely used as an organic landfill material and landfill, compost and organic raw materials treated by the reprocessing method.
본 발명은 고화제(Alec)의 독특한 반응으로 폐자원 내부에 존재하는 수분은 알카리물질, CaSO4, 황산염 등과 반응하여 Ettringite(3CaO . Al2O3 . 3CaSO4 .. 32H2O)가 생성시킴으로써, 고화체의 조기강도 발현을 유도하고 황산염과 반응함으로써 악취절감, 유해 미생물의 사멸화, 급격한 수분증발을 유도함으로써, 유무기성 폐기물의 재활용이 가능한 형태로의 전환이 신속한 처리 방법을 제공하기 위한 것이다.The present invention is a unique reaction of the solidifying agent (Alec), the water present in the waste resources reacts with alkaline substances, CaSO4, sulfates and the like Ettringite (3CaO.Al 2 O 3 . 3CaSO 4 . . 32H 2 O) induces early strength expression of solidified bodies and reacts with sulfates to reduce odor, kill harmful microorganisms, and rapidly evaporate water. It is to provide a method.
본 발명은 상술한 기술적 과제를 해결하기 위하여 유.무기성 폐자원에 고황산염 고화제를 혼합해 폐자원의 위해성(수분, 악취, 유해병원균)을 절감 및 제거하고 재활용 제품으로 신속한 처리를 할 수 있는 유.무기성 폐자원 고화처리 방법을 제공한다.In order to solve the above technical problem, the present invention is to mix the high sulphate solidifying agent with organic and inorganic waste resources to reduce and eliminate the risk (moisture, odor, harmful pathogens) of the waste resources and to quickly treat them with recycled products. It provides a method for solidifying organic and inorganic waste resources.
본 발명에 의한 유.무기성 폐자원의 고화 처리를 위한 고화제인 고황산염 고화제의 제조방법은, 황산염 수화물에 알카리 물질을 투입해 괴질화 시키는 과정과; 괴질화된 황산염 수화물을 열 건조시키는 과정과, 열 건조에 의해 분말 상의 고황산염 발열체를 제조하는 과정을 수행함으로써 달성된다.According to the present invention, there is provided a method for producing a high sulfate solidifying agent which is a solidifying agent for solidifying an organic or inorganic waste resource, comprising: adding an alkali substance to sulfate hydrate and hardening it; It is achieved by carrying out the process of heat drying the hardened sulphate hydrate and the process of producing a high sulfate pyrogen on powder by heat drying.
상기 유.무기성 폐자원은, 바람직하게는 하수슬러지, 정수슬러지, 음식물 쓰레기, 축산 폐자원, 폐석고, 폐석회 , 준설토로 구성되는 군으로부터 선택되는 어느 하나인 것이 바람직하다.The organic / inorganic waste resources are preferably any one selected from the group consisting of sewage sludge, purified water sludge, food waste, livestock waste resources, waste gypsum, waste lime, and dredged soil.
상기 유.무기성 폐자원의 고화처리 방법(Alec System)은, 바람직하기는 유,무기성 폐자원 100 중량부에 대하여 고화제인 고황산염 발열체를 20~40 중량부를 투입하며, 괴질화 건조된 황산염(Mono hydrate) 60~75중량부와 강알카리 물질(10~15) 중량부, CaSO4 5~10 중량부로 고황산염 발열체(Alec-Ⅱ)를 제조하여, 고황산염 발열체의 PH를 6~8로 유지 진행시키는 것이 좋다.The method for solidifying an organic / inorganic waste resource (Alec System), preferably 20 to 40 parts by weight of a high sulphate heating element which is a hardening agent with respect to 100 parts by weight of organic and inorganic waste resources, A high sulfate heating element (Alec-II) was prepared from 60 to 75 parts by weight of monohydrate, 5 to 10 parts by weight of strong alkali material (10 to 15), and 5 to 10 parts by weight of CaSO4, thereby increasing the pH of the high sulfate heating element to 6 to 8. It is good to keep going.
대부분의 황산염 물질들은 수화물 형태로 존재하며 표면에는 유리황산(H2SO4) 때문에 타버리거나 건조되지 않는 경우가 발생된다.Most sulphate materials are in the form of hydrates and the surface will not burn or dry due to free sulfuric acid (H 2 SO 4 ).
이에 대한 안정적인 물성(pH,분말)을 유지하기 위해 건조의 전처리 방법으로, 본 발명은 황산염 수화물에 특수한 극소량의 알카리 물질을 투입해 괴질화 시킨 후 열 건조시켜 분말상의 고황산염 발열체를 생산한다.In order to maintain stable physical properties (pH, powder) for this, as a pretreatment method of drying, the present invention adds a very small amount of alkali material to the sulfate hydrate and then heat-dried to produce a powdery high sulfate heating element.
상기 황산염 화합물은 바람직하게는 황산칼슘(CaSO4), 황산칼륨(K2SO4),황산나트륨(Na2SO4), 황산제일철(FeSO4), 황산제이철(Fe2(SO4)3) 및 그 수화물로 구성되는 군으로부터 선택되는 어느 하나 이상인 것을 사용한다.The sulfate compound is preferably calcium sulfate (CaSO 4 ), potassium sulfate (K 2 SO 4 ), sodium sulfate (Na 2 SO 4 ), ferrous sulfate (FeSO 4 ), ferric sulfate (Fe 2 (SO 4 ) 3 ) and Any one or more selected from the group consisting of the hydrates are used.
상기 강알카리계 분말은 바람직하게는 산화칼슘, 산화마그네슘, 생석회, 소석회, 석회석 및 시멘트로 구성되는 군으로부터 선택되는 어느 하나 이상인 것을 사용하는 것이 좋다.The strong alkali powder is preferably used at least one selected from the group consisting of calcium oxide, magnesium oxide, quicklime, slaked lime, limestone and cement.
본 발명은 상기 고화제로 재처리된 유,무기성 폐자원을 포함하는 매립장 복토재를 제공하거나, 부숙공정을 거쳐 매립지 복토용 부숙토 및 토양 계량제용 부숙토를 제공한다.The present invention provides a landfill cover material containing organic and inorganic waste resources reprocessed with the above solidifying agent, or provides a landfill soil for landfill and a soil metering soil through a housing process.
본 발명은 유,무기성 폐자원의 고화처리방법(Mono hydrate System)으로써 괴질화 후 건조 시킨 황산염과 강알카리 물질, CaSO4를 이용한 유,무기성 폐자원의 고화제 제조방법과 그를 이용한 고화처리방법으로서 고발열 온도 80℃이상 으로 인한 급격한 수분 증발과 유해물질 제거 및 Ettringite생성으로 인한 조기고화, 강도 발현으로 신속 처리가 가능하고 공정이 단순함으로 인해 처리시간의 단축과 비용절 감을 도모할 수 있다. The present invention is a monohydrate system for solidifying organic and inorganic waste resources (mono hydrate system), the method of preparing solidified organic and inorganic waste resources using sulfate and strong alkali material, CaSO4 and dried solidified after agglomeration and solidification treatment method using the same As a result, rapid treatment is possible due to rapid water evaporation due to high heat generation temperature above 80 ℃, removal of harmful substances and early solidification and strength development due to Ettringite formation, and simple process enables reduction of treatment time and cost reduction.
본 발명은 하수,정수, 음식물, 축산폐자원, 준설토 등에 폭넓게 적용할 수 있고, 공정 부산물로써 자원 재활용에 매우 효과적일 뿐만 아니라 적정 pH를 유지할 경우 유, 무기성 폐자원에서 풍기는 악취를 효율적으로 제거할 수 있다. 아울러 본 발명에 의해 처리된 유,무기성 폐자원들은 매립장 복토제, 부숙토 퇴비 및 유기성 원료 등으로 폭넓게 활용될 수 있다.The present invention can be widely applied to sewage, purified water, food, livestock waste, dredged soil, etc., and is not only very effective for recycling resources as process by-products, but also effectively removes bad smells from oil and inorganic waste resources when maintaining proper pH. can do. In addition, the organic and inorganic waste resources treated by the present invention can be widely used as a landfill covering agent, mature soil compost and organic raw materials.
이하, 본 발명의 실시 예를 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail.
본 발명은, 유무기성 폐자원의 재처리 방법에 있어서, 상기 유무기성 폐자원에 괴질화 시킨 황산철과, 알카리분말, CaSO4를 이용 고화제를 제조하는 방법과, 그 고화제를 유,무기성 폐자원 혼합하여 유.무기성 폐자원을 재처리하는 고화 처리 방법(Alec-System)을 제공한다. The present invention relates to a method for reprocessing an organic / inorganic waste resource, comprising a method for producing a solidifying agent using iron sulfate, an alkali powder, and CaSO 4 hardened to the organic / inorganic waste resource, It provides a solidification treatment method (Alec-System) to reprocess organic / inorganic waste resources by mixing sex waste resources.
종래의 황산염 화합물과 강알카리 물질을 반응시켜 유무기성 폐자원을 재처리하는 방법은 먼저 고화제를 제조한 후, 상기 고화제를 유무기성 폐자원에 혼합하여 이를 고화시킨 후, 유무기성 폐자원의 종류와 사용목적에 따라 복토재, 부숙토 및 퇴비 등의 원료로 사용하였다. The conventional method for reprocessing an organic-inorganic waste resource by reacting a sulfate compound with a strong alkali material is to prepare a solidifying agent, and then to mix the solidifying agent with an organic-inorganic waste resource and to solidify it. Depending on the type and purpose of use, it was used as raw materials such as cover material, mature soil and compost.
그러나 이러한 종래의 방법은 분쇄, 혼합, 방열, 2차분쇄 및 2차 혼합단계 등의 여러 단계 진행함으로, 공정관리의 어려움이 많다. However, such a conventional method is progressed in several stages such as grinding, mixing, heat dissipation, secondary grinding, and secondary mixing, and thus, there are many difficulties in process management.
그뿐 아니라 방열의 단계를 통해 처리 대상물에 유용하게 사용할 수 있는 에너지가 낭비되므로 결과적으로 비용이 증가함으로 유무기성 폐자원의 재처리 단가가 높아져 유무기성 폐자원의 재처리를 하지 못하는 악순환을 초래하였다. In addition, the heat dissipation step wastes energy that can be usefully used for the treatment object. As a result, the cost increases and the cost of reprocessing organic and inorganic waste resources increases, resulting in a vicious cycle in which the organic and inorganic waste resources cannot be reprocessed.
또한 사일로 상에서 상기 고화제를 유무기성 폐자원에 도포 시 적절한 환경을 조성하지 못하면 상기 유무기성 폐자원이 빠르고 강하게 고화되어 사일로 전체를 폐기해야하는 경우도 종종 발생하였다.In addition, when applying the solidifying agent to the inorganic waste resources on the silo, if the proper environment is not formed, the inorganic waste resources are solidified quickly and strongly, and the entire silo has to be disposed of.
그에 비해 본 발명은 상기의 방법처럼 고화제를 제조하지 않고 황산염 화합물을 괴질화 시켜 표면 황산기를 제거하고 80℃ ~ 300℃ 이내로 건조(Mono hydrate화)하여 강알카리 물질과 CaSO4 를 균질 혼합한 고황산염 고화제(Alec-Ⅱ)를 제조한다.In contrast, the present invention removes the surface sulfate group by homogenizing the sulfate compound without preparing a solidifying agent as described above, and drying (Mono hydrate) within 80 ° C. to 300 ° C. to homogeneously mix strong alkali material with CaSO 4 . Sulfate solidifying agent (Alec-II) is prepared.
도 1은 본 발명에 의한 유.무기성 폐자원의 고화처리를 위한 고화제 제조 공정도이다.1 is a flow chart of a solidifying agent for solidifying treatment of organic and inorganic waste resources according to the present invention.
이에 도시된 바와 같이, 본 발명에 의한 유.무기성 폐자원의 고화 처리를 위한 고화제인 고황산염 고화제의 제조방법은, 황산염 수화물에 알카리 물질을 투입해 괴질화 시키는 황산염 수화물 괴질화 과정(S11)과; 괴질화된 황산염 수화물을 열 건조시켜 분말 상의 무수 황산염으로 생성하는 건조과정(S12)과; 상기 건조 과정을 거친 괴질화된 황산염 즉, 무수 황산염에 강알카리 물질과 CaSO4를 균질 혼합하여 고황산염 발열체(20)를 제조하는 고화제 제조과정(S13)을 수행한다.As shown in the drawing, the method for preparing a high sulfate solidifying agent which is a solidifying agent for solidifying an organic / inorganic waste resource according to the present invention includes a sulfate hydrate agglomeration process in which an alkali substance is added to the sulfate hydrate and agglomerated. S11); Drying the hardened sulfate hydrate to produce anhydrous sulfate in powder form (S12); Homogenized sulphate, that is, the drying process, the homogeneous mixture of strong alkali material and CaSO4 in the anhydrous sulphate performs a solidifying agent manufacturing process (S13) for producing a high sulphate heating element (20).
상기 황산염 수화물에 강알카리 물질을 투입하여 괴질화 시키는 황산염 수화 물 괴질화 과정(S11)은, 황산염 수화물 100 중량부에 강알카리 물질 5-30 중량부를 투입하여 완속으로 혼합하는 것으로서, 황산염 수화물 표면의 황산기가 제거된다.The sulphate hydrate agglomeration process (S11) in which the strong alkali material is added to the sulphate hydrate and agglomerated is added to 5-30 parts by weight of the strong alkali material in 100 parts by weight of the sulphate hydrate, and slowly mixed. Sulfuric acid groups are removed.
상기 황산염 수화물은 황산칼슘(CaSO4), 황산칼륨(K2SO4), 황산 나트륨(Na2SO4), 황산제일철(FeSO4), 황산제이철(Fe2(SO4)3) 및 그 수화물로 구성되는 군으로부터 선택되는 어느 하나 이상인 것을 사용한다.The sulfate hydrate is calcium sulfate (CaSO 4 ), potassium sulfate (K 2 SO 4 ), sodium sulfate (Na 2 SO 4 ), ferrous sulfate (FeSO 4 ), ferric sulfate (Fe 2 (SO 4 ) 3 ) and its hydrates Any one or more selected from the group consisting of these is used.
상기 강알카리 물질로는, 산화칼슘, 산화마그네슘, 생석회, 소석회, 석회석 및 시멘트로 구성되는 군으로부터 선택되는 어느 하나 이상인 것을 사용하며, 분말 형태의 강알카리 물질을 사용하는 것이 바람직하다.As the strong alkali material, any one or more selected from the group consisting of calcium oxide, magnesium oxide, quicklime, slaked lime, limestone and cement is used, and it is preferable to use a strong alkali material in powder form.
상기 건조 과정(S12)은, 80℃ ~ 300℃ 이내로 건조시켜 분말형태로 만든다.The drying process (S12) is dried to within 80 ℃ ~ 300 ℃ to form a powder.
그리고 상기 고화제 제조과정(S13)은 상기 괴질화 된 무수 황산염(Mono hydrate) 60~75 중량부와 강알카리계 분말 10~15 중량부, CaSO4 5~10 중량부로 혼합하여 제조한다. 이때 혼합된 고황한염 고화제의 pH를 6 ~ 8로 유지시켜 진행하는 것이 바람직하다.And the solidification process (S13) is prepared by mixing 60 to 75 parts by weight of the hardened anhydrous sulfate (Mono hydrate), 10 to 15 parts by weight of strong alkali-based powder, 5 to 10 parts by weight of CaSO4. At this time, it is preferable to proceed by maintaining the pH of the mixed high sulfur salt hardener at 6 ~ 8.
도 2는 본 발명에 의한 유.무기성 폐자원의 고화처리 공정도이다.2 is a process chart of solidification of organic and inorganic waste resources according to the present invention.
이에 도시된 바와 같이,As shown therein,
유,무기성 폐자원(10)에 본 발명의 고화제 제조방법으로 제조된 상기 고황산염 고화제(Alec-Ⅱ)(20)를 투입하는 고화제 투입단계(S1)와;A solidifying agent input step (S1) of introducing the high sulfate solidifying agent (Alec-II) 20 prepared by the solidifying agent manufacturing method of the present invention into an organic and inorganic waste resource 10;
상기 유,무기성 폐자원(10)에 고황산염 고화제(20)를 투입하여 혼합하는 고화제 혼합단계(S2)와;A solidifying agent mixing step (S2) of mixing the high
상기 고화제 혼합단계(S2)에서 발생되는 고발열, 수분증발 및 탄산화 반응이 안정화 될 때까지 안정화시키는 제1안정화단계(S3)와;A first stabilizing step (S3) of stabilizing until the high heat generation, water evaporation and carbonation reactions generated in the solidifying agent mixing step (S2) are stabilized;
상기 제1안정화단계(S3)후, 대기중에 노출되어 산화 반응과 그레늄 형태의 입자로 고화되는 고화반응이 이루어지도록 안정화시키는 제2안정화 단계(S4)와;After the first stabilization step (S3), the second stabilization step (S4) is stabilized to be exposed to the atmosphere to solidify the oxidation reaction and the solidification of the particles in the form of grenium;
상기 제2안정화 단계(S4)에서 그레늄 형태의 입자로 고화된 유.무기성 폐자원을 배출하는 배출단계(S5)를 수행함을 특징으로 한다.In the second stabilization step (S4) characterized in that to perform the discharge step (S5) for discharging the organic and inorganic waste resources solidified into particles of the form of grenium.
본 발명에서 처리하는 상기 유.무기성 폐자원(10)으로는, 하수슬러지, 정수슬러지, 음식물 쓰레기, 축산 폐자원, 폐석고, 폐석회 , 준설토로 구성되는 군으로부터 선택되는 어느 하나이다.The organic and inorganic waste resources 10 to be treated in the present invention are any one selected from the group consisting of sewage sludge, purified water sludge, food waste, livestock waste resources, waste gypsum, waste lime, and dredged soil.
상기 유.무기성 폐자원(10)에 고황산염 고화제(20)를 투입하는 방법은, 유,무기성 폐자원 100 중량부에 대하여 고황산염 발열체인 고황산염 고화제(20)를 20 - 40 중량부를 투입하여 혼합한다.The method of injecting the high
상기 고화제 혼합 단계(S2)는, 유.무기성 폐자원에 고황산염 고화제(20)를 투입하여 빠른시간내에 믹서를 통과시켜 혼합시킨다. 바람직하게는 부상식 무중력 믹서를 사용하여 혼합하는 것이 바람직하며, 이때 발생되는 반응은 고발열, 수분증발과 아울러 탄산화 반응이 발생된다.In the solidifying agent mixing step (S2), the high
CaO + H2O -> Ca(OH)2 .......고발열, 수분증발CaO + H 2 O-> Ca (OH) 2 ....... High fever, moisture evaporation
Ca(OH)2 + CO2 -> CaCO3 + H2O ........ 탄산화반응Ca (OH) 2 + CO 2 -> CaCO 3 + H 2 O ........ Carbonation
상기 고화제 혼합단계(S2)에서 고발열, 수분증발 및 탄산화반응이 발생되므로, 상기 반응들이 안정화 될때까지 안정화시키는 제1안정화단계(S3)를 거치고, 이후 24시간 정도 대기중에 노출시켜 고화시키는 제2안정화 단계(S4)를 진행한다.Since the high heat generation, water evaporation and carbonation reaction occurs in the solidifying agent mixing step (S2), the first stabilizing step (S3) to stabilize until the reaction is stabilized, and then exposed to the atmosphere for about 24 hours to solidify the second Proceed to the stabilization step (S4).
상기 제2안정화 단계(S4)에서는 산화반응과, 고화반응이 발생된다.In the second stabilization step (S4), an oxidation reaction and a solidification reaction occur.
산화반응 : Fe2 + -> Fe3 + + e- 로서 산화반응이 발생되어 Fe2 + -> Fe3 + + X(OH)2 -> Fe(OH)3 로서 흙색으로 변한다. Oxidation Reaction: Fe 2 + -> Fe 3 + + e - Oxidation reaction occurs and changes to earth color as Fe 2 + -> Fe 3 + + X (OH) 2- > Fe (OH) 3 .
고화반응 : 3CaO.Al2O3 . 3CaSO4 . 32H2O + Ca(OH)2 Solidification Reaction: 3CaO.Al 2 O 3 . 3CaSO 4 . 32H 2 O + Ca (OH) 2
상기와 같은 제2안정화 단계(S4)를 거친후 고화반응이 발생되어 그레늄 형태의 입자로 형성되면 이를 배출하는 배출단계(S5)를 수행한다.After the second stabilization step (S4) as described above, if the solidification reaction is generated to form the particles of the form of grenium is discharged to perform the discharge step (S5).
배출된 처리물은 W/T : 40%이하이고, pH : 6 - 8, 색상은 흙색 처리물이되며, 암모니아는 8ppm 이하가 된다.The discharged treatment is W / T: 40% or less, pH: 6-8, the color becomes earthy treatment, and ammonia is 8ppm or less.
이와 같이 본 발명에 의하면, 고황산염 고화제(Alec-Ⅱ)와 유,무기성 폐자원을 혼합시 대량의 반응열이 발생되어 수분을 증발시키고, 유해병원성미생물 사멸과 더불어 신속히 유해물질을 안정 고화 처리할 수 있는 고화 처리방법인 것이다. 또한 pH를 6 ~8로 조절하여 암모니아 가스 발생을 억제하고 악취 또한 제거하게 된다.As described above, according to the present invention, when the high sulfate solidifying agent (Alec-II) and the organic and inorganic waste resources are mixed, a large amount of heat of reaction is generated to evaporate water, and to kill harmful substances quickly and stably solidify the hazardous substances. It is a solidification treatment that can be done. In addition, the pH is adjusted to 6 ~ 8 to suppress the generation of ammonia gas and to remove odors.
도 3은 본 발명에 의한 유,무기성 폐자원의 고화처리에 대한 일예를 보인 반 응 설명도이다.3 is an explanatory view showing an example of the solidification treatment of organic and inorganic waste resources according to the present invention.
유.무기성 폐자원(10)으로 하수 슬러지를 사용하고, 고화제로는 본 발명의 제조발명에 의해 제조된 고황산염 발열체인 고황산염 고화제(Alec-Ⅱ)(20)를 사용하한 것을 예로 하였다.]Sewage sludge was used as the organic / inorganic waste resource (10), and as the solidifying agent, a high sulfate solidifying agent (Alec-II) (20), which is a high sulfate heating element manufactured according to the present invention, was used. .]
상기 하수 슬러지와, 고황산염 고화제(Alec-Ⅱ)를 균질 혼합하게 되면, 혼합 과정상에서 반응들이 일어나게 되는데, CaO + H2O -> Ca(OH)2 에 의한 흡수발열 반응과, Ca(OH)2 + CO2 -> CaCO3 + H2O 에 의한 탄산화반응이 발생된다.If with the sewage sludge, a high sulphate and an agent (Alec-Ⅱ) mixed homogeneously, reactions there is happened on the mixing process, CaO + H 2 O -> Ca (OH) absorption exothermic reaction according to the second and, Ca (OH ) Carbonation reaction by 2 + CO 2- > CaCO 3 + H 2 O occurs.
이때, Ca2 + + SO4 2 - -> CaSO4 . 2H2O pH(Low)이다. 즉, 혼합단계(S2)에서 고발열, 수분증발이 발생됨과 아울러 탄산화 반응이 발생된된다.At this time, Ca 2 + + SO 4 2 - -> CaSO 4. 2H 2 O pH (Low). That is, in the mixing step (S2), high heat generation, moisture evaporation is generated and carbonation reaction is generated.
제1,제2안정화 단계(S3, S4)를 거치면서, Fe2 + -> Fe3 + + e- 로서 산화반응이 발생되어 Fe2 + -> Fe3 + + X(OH)2 -> Fe(OH)3 로서 흙색으로 변한다. While passing through the first and second stabilization step (S3, S4), Fe 2 + -> Fe 3 + + e - is an oxidation reaction occurs as Fe 2 + -> Fe 3 + + X (OH) 2 -> Fe (OH) 3 as earthy.
상기 제2안정화단계(S4)가 끝나면서 고화 반응이 발생된다. 고화반응은,After the second stabilization step S4 is completed, a solidification reaction is generated. Solidification reaction,
2FeSO4 . 7H2O + 2CaO -> FeSO3 + 2CaSO4 . 2H2O + 5H2O + O2↑ 2FeSO 4 . 7H 2 O + 2CaO-> FeSO 3 + 2CaSO 4 . 2H 2 O + 5H 2 O + O 2 ↑
4CaO.Al2O3Fe2O3 + CaSO4 . 2H2O + Ca(OH)2 4CaO.Al 2 O 3 Fe 2 O 3 + CaSO 4 . 2H 2 O + Ca (OH) 2
--> 3(CaO.Al2O3.Fe2O3) + 3CaSO4 + 32H2O + Ca(OH)2 -> 3 (CaO.Al 2 O 3 .Fe 2 O 3 ) + 3CaSO 4 + 32H 2 O + Ca (OH) 2
와 같이 에트링 자이트가 생성된다.Ettling zite is generated as follows.
본 발명의 기술원리로 고황산염 고화제를 이용하는 처리방법은 하기 반응식과 같다.The treatment method using the high sulfate solidifying agent as the technical principle of the present invention is shown in the following scheme.
Alec의 주반응Main reaction of Alec
nH2SO4 + CaO --> CaSO4 + H2O + 69.2 Kcal/molnH 2 SO 4 + CaO-> CaSO 4 + H 2 O + 69.2 Kcal / mol
FeSO4 + CaO + H2O --> CaSO4 + Fe(OH)2 + 163.9 Kcal/molFeSO 4 + CaO + H 2 O-> CaSO 4 + Fe (OH) 2 + 163.9 Kcal / mol
Fe2SO4 + 3CaO + 3H2O --> 3CaSO4 + 2Fe(OH)3 + 300.74 Kcal/molFe 2 SO 4 + 3CaO + 3H 2 O-> 3CaSO 4 + 2Fe (OH) 3 + 300.74 Kcal / mol
CaSO4 + 2H2O --> CaSO4 . 1/2H2O + 7.21 Kcal/molCaSO 4 + 2H 2 O-> CaSO 4 . 1 / 2H 2 O + 7.21 Kcal / mol
CaSO4 . 1/2H2O + 2/3H2O --> CaSO4 . 2H2O + 4.6 Kcal/molCaSO 4 . 1 / 2H 2 O + 2 / 3H 2 O-> CaSO 4 . 2H 2 O + 4.6 Kcal / mol
유, 무기성 폐자원과 H2SO4 전해반응(암모늄염과 반응) -> 황산암모늄생성, 알카리물질 투입시 악취감소 고발열온도(80℃)로 인한 병원성미생물의 사멸화 -> 유기성 슬러지 부패방지 탄산화 반응과 산화반응 -> 재슬러지화 방지, 색상이 흙색으로 전환된다.Electrolytic reaction of oil and inorganic waste resources with H 2 SO 4 (reaction with ammonium salt)-> Formation of ammonium sulphate, reduction of odor when alkaline materials are added. Killing of pathogenic microorganisms due to high exothermic temperature (80 ℃)-> Organic sludge anti-corrosion carbonation Reaction and oxidation-> Resludge prevention, color is changed to earth color.
상기 본 발명에 대한 고화처리방법의 실험 실시예로써 상세히 설명하고자 한다 하기된 실시 예가 본 발명의 범위를 한정하는 것은 아니다.The experimental examples of the solidification treatment method according to the present invention will be described in detail. The following examples are not intended to limit the scope of the present invention.
<실시예 1> ≪ Example 1 >
상온에서 하수슬러지 100 중량부에 상기 고황산염 고화제(Mono hydrate- Ⅱ)30중량부를 동시에 첨가한 후 혼합, 교반하여 매립장 복토제로 제조하였다.30 parts by weight of the monosulfate solidifying agent (Mono hydrate-II) was added to 100 parts by weight of sewage sludge at room temperature, and then mixed and stirred to prepare a landfill covering agent.
<비교예 1>Comparative Example 1
상온에서 하수슬러지 100 중량부에 황산염무수화물 35중량부와 산화칼슘 20중량부를 동시에 첨가한 후 혼합, 교반하여 매립장 복토제 제조하였다.At room temperature, 35 parts by weight of sulfate anhydride and 20 parts by weight of calcium oxide were simultaneously added to 100 parts of sewage sludge, followed by mixing and stirring to prepare a landfill cover.
<비교예 2>Comparative Example 2
상온에서 하수슬러지 100 중량부에 황산염무수화물 20중량부와 산화칼슘 10중량부를 동시에 첨가한 후 혼합, 교반하여 매립장 복토제 제조하였다.At room temperature, 20 parts by weight of sulfate anhydride and 10 parts by weight of calcium oxide were simultaneously added to 100 parts by weight of sewage sludge, followed by mixing and stirring to prepare landfill cover.
<실시예 1> 과 <비교예 1, 2>에서 매립용 복토제의 시간경과에따른 함수율 변화PH및 악취 정도를 측정하였고 그 결과 아래의 <표>로 나타내었다 상기 악취 정도는 5명이 흡취한 후 1~5점을 부여하여 관능 평가로 실시하였고 (1은 악취 없음, 5는 악취가 매우 심한 것을 의미한다) In <Example 1> and <Comparative Examples 1 and 2>, the moisture content change PH and odor degree according to the time-lapse of the landfill covering agent were measured, and the results are shown in the following <Table>. Afterwards, 1 ~ 5 points were assigned to the sensory evaluation (1 means no odor, 5 means very bad odor).
이와 같은 본 발명은 유,무기성 폐자원의 고화처리방법(Mono hydrate System)으로써 괴질화 후 건조시킨 무수 황산염과 강알카리 물질, CaSO4를 이용한 유,무기성 폐자원의 고화제 제조방법과 그를 이용한 고화처리방법으로서 고발열 온도 80℃이상 으로 인한 급격한 수분 증발과 유해물질 제거 및 Ettringite생성으로 인한 조기고화 강도 발현으로 신속 처리가 가능하고 공정이 단순함으로 인해 처리시간의 단축과 비용절감을 도모할 수 있다.As described above, the present invention provides a method for preparing an solidifying agent for organic and inorganic waste resources using anhydrous sulfates and strong alkaline substances and CaSO 4 , which is dried after annealing as a mono hydrate system. As a solidification treatment method used, rapid treatment is possible due to rapid moisture evaporation due to high heat generation temperature of 80 ℃ or higher, removal of harmful substances and early solidification strength due to Ettringite production, and simple processing makes it possible to shorten processing time and reduce costs. have.
본 발명의 고화 처리 방법(Alec System)은 하수,정수, 음식물, 축산폐자원, 준설토 등에 폭넓게 적용할 수 있고, 공정 부산물로써 자원 재활용에 매우 효과적일 뿐만 아니라 적정 pH를 유지할 경우 유, 무기성 폐자원에서 풍기는 악취를 효율적으로 제거 할 수 있다. 아울러 본 발명에 의해 처리된 유,무기성 폐자원들은 매립장 복토제, 부숙토 퇴비 및 유기성 원료 등으로 폭넓게 활용될 수 있다.The Alec System of the present invention can be widely applied to sewage, water, food, livestock waste, dredged soil, etc., and is very effective in recycling resources as a process by-product, and also maintains oil and inorganic waste when maintaining a proper pH. Efficient odors from resources can be effectively removed. In addition, the organic and inorganic waste resources treated by the present invention can be widely used as a landfill covering agent, mature soil compost and organic raw materials.
도 1은 본 발명에 의한 유,무기성 폐자원의 고화처리를 위한 고황산염 고화제 제조공정도.1 is a high sulphate solidifying agent production process diagram for the solidification treatment of organic and inorganic waste resources according to the present invention.
도 2는 본 발명에 의한 유,무기성 폐자원의 고화 처리 공정도.2 is a solidification process chart of the organic and inorganic waste resources according to the present invention.
도 3은 본 발명에 의한 고화 처리시의 반응 설명도이다.3 is an explanatory view of the reaction during the solidification treatment according to the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
10 : 유, 무기성 폐자원10: organic and inorganic waste resources
20 : 고황산염 고화제20: high sulfate solidifying agent
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| CN103771818A (en) * | 2014-01-14 | 2014-05-07 | 安徽盛仁新型建材有限公司 | Phosphorus slag air-added brick and production method thereof |
| CN104649533A (en) * | 2015-02-05 | 2015-05-27 | 宇星科技发展(深圳)有限公司 | Compound conditioning and deep dewatering method of sludge |
| CN110304858A (en) * | 2019-06-25 | 2019-10-08 | 张勇 | A kind of pervious concrete gelling agent |
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| JP2005146275A (en) | 2003-10-24 | 2005-06-09 | Growth Factor:Kk | Agent for improving, solidifying, and stabilizing soil and its quality |
| KR100509932B1 (en) * | 2004-08-04 | 2005-08-30 | (주)토고이알씨 | Scrapped material used practical use materials manufacture method |
| KR20070089021A (en) * | 2006-02-27 | 2007-08-30 | 주식회사 서울암면 | Manufacturing method of solidification agent for organic or inorganic waste resources |
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| JP2005146275A (en) | 2003-10-24 | 2005-06-09 | Growth Factor:Kk | Agent for improving, solidifying, and stabilizing soil and its quality |
| KR100509932B1 (en) * | 2004-08-04 | 2005-08-30 | (주)토고이알씨 | Scrapped material used practical use materials manufacture method |
| KR20070089021A (en) * | 2006-02-27 | 2007-08-30 | 주식회사 서울암면 | Manufacturing method of solidification agent for organic or inorganic waste resources |
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| CN103771818A (en) * | 2014-01-14 | 2014-05-07 | 安徽盛仁新型建材有限公司 | Phosphorus slag air-added brick and production method thereof |
| CN104649533A (en) * | 2015-02-05 | 2015-05-27 | 宇星科技发展(深圳)有限公司 | Compound conditioning and deep dewatering method of sludge |
| CN104649533B (en) * | 2015-02-05 | 2021-03-26 | 宇星科技发展(深圳)有限公司 | Compound conditioning and deep dewatering method for sludge |
| CN110304858A (en) * | 2019-06-25 | 2019-10-08 | 张勇 | A kind of pervious concrete gelling agent |
| CN110304858B (en) * | 2019-06-25 | 2020-03-10 | 张勇 | Pervious concrete gelling agent |
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