JP6021182B2 - 苦土りん酸肥料の製造方法 - Google Patents
苦土りん酸肥料の製造方法 Download PDFInfo
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- JP6021182B2 JP6021182B2 JP2012273036A JP2012273036A JP6021182B2 JP 6021182 B2 JP6021182 B2 JP 6021182B2 JP 2012273036 A JP2012273036 A JP 2012273036A JP 2012273036 A JP2012273036 A JP 2012273036A JP 6021182 B2 JP6021182 B2 JP 6021182B2
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- sludge
- solid
- phosphate fertilizer
- human waste
- magnesium source
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- 239000002686 phosphate fertilizer Substances 0.000 title claims description 32
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 239000010802 sludge Substances 0.000 claims description 76
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 47
- 239000011777 magnesium Substances 0.000 claims description 47
- 229910052749 magnesium Inorganic materials 0.000 claims description 47
- 239000007788 liquid Substances 0.000 claims description 32
- 239000010800 human waste Substances 0.000 claims description 26
- 239000010801 sewage sludge Substances 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 11
- 238000010304 firing Methods 0.000 claims description 8
- 230000008774 maternal effect Effects 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 5
- 239000010865 sewage Substances 0.000 description 25
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 24
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 24
- 239000000047 product Substances 0.000 description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 17
- 239000003337 fertilizer Substances 0.000 description 17
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 16
- 239000011574 phosphorus Substances 0.000 description 16
- 229910052698 phosphorus Inorganic materials 0.000 description 16
- 239000000395 magnesium oxide Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 12
- 239000002994 raw material Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000005469 granulation Methods 0.000 description 9
- 230000003179 granulation Effects 0.000 description 9
- 238000004062 sedimentation Methods 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 7
- 239000004927 clay Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 229910019142 PO4 Inorganic materials 0.000 description 5
- 238000004090 dissolution Methods 0.000 description 5
- 238000000855 fermentation Methods 0.000 description 5
- 230000004151 fermentation Effects 0.000 description 5
- 235000021317 phosphate Nutrition 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 235000010755 mineral Nutrition 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000011575 calcium Substances 0.000 description 3
- 239000000378 calcium silicate Substances 0.000 description 3
- 229910052918 calcium silicate Inorganic materials 0.000 description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 3
- 239000001095 magnesium carbonate Substances 0.000 description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 3
- 235000014380 magnesium carbonate Nutrition 0.000 description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 3
- 239000000347 magnesium hydroxide Substances 0.000 description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 206010024796 Logorrhoea Diseases 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000004484 Briquette Substances 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000003321 atomic absorption spectrophotometry Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 238000004889 fertilizer analysis Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Images
Classifications
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- 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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
-
- 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
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Landscapes
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Description
本発明によれば、マグネシウム源の添加により、950℃以上1100℃以下の低温焼却又は焼成でもリン酸マグネシウムカルシウムやアルカリ土類リン酸塩が生成し、りん酸と苦土の2成分を可給する苦土りん酸肥料を製造することができ、溶融より処理温度の低い焼却又は焼成工程によることで、消費エネルギーを低減し、製造コストを大幅に削減することができる。
さらに、前記マグネシウム源が添加された下水汚泥又はし尿汚泥を固液分離し、該固液分離により得られた脱水汚泥を焼却又は焼成することができる。これにより、含水率の高い下水汚泥又はし尿汚泥を効率よく処理することができる。
また、前記下水汚泥又はし尿汚泥を固液分離し、該固液分離により得られた脱水汚泥に前記マグネシウム源を添加することができる。これにより、含水率の高い下水汚泥又はし尿汚泥を効率よく処理することができる。
さらに、前記マグネシウム源を平均粒径が100μm以下とすることができる。マグネシウム源MAの平均粒径を100μmより大きくすると、苦土りん酸肥料中に未反応のマグネシウムが残留して、く溶率が低下するおそれがある。
2 水処理設備
4 混合焼却設備
5 最初沈殿池
6 生物処理槽
7 最終沈殿池
8 遠心濃縮機
9 メタン発酵槽
10 貯槽
11 固液分離機
12 重力濃縮槽
13 マグネシウム源添加装置
14 混合機
15 ストーカー炉
16 粉砕機
17 造粒機
Claims (6)
- 下水汚泥又はし尿汚泥を950℃以上1100℃以下で焼却又は焼成するにあたり、該焼却又は焼成により生じる焼却物又は焼成物のMgO濃度が10質量%以上25質量%以下になるように、前記下水汚泥又はし尿汚泥にマグネシウム源を添加することを特徴とする苦土りん酸肥料の製造方法。
- 前記マグネシウム源が添加された下水汚泥又はし尿汚泥のP/Siモル比が0.7以上となるように、前記下水汚泥又はし尿汚泥に前記マグネシウム源を添加することを特徴とする請求項1に記載の苦土りん酸肥料の製造方法。
- 前記マグネシウム源が添加された下水汚泥又はし尿汚泥を固液分離し、
該固液分離により得られた脱水汚泥を焼却又は焼成することを特徴とする請求項1又は2に記載の苦土りん酸肥料の製造方法。 - 前記下水汚泥又はし尿汚泥を固液分離し、
該固液分離により得られた脱水汚泥に前記マグネシウム源を添加することを特徴とする請求項1又は2に記載の苦土りん酸肥料の製造方法。 - 前記マグネシウム源は、平均粒径が100μm以下であることを特徴とする請求項1乃至4のいずれかに記載の苦土りん酸肥料の製造方法。
- 前記マグネシウム源を、前記下水汚泥又はし尿汚泥を貯留する貯留槽、該貯留槽から下水汚泥又はし尿汚泥を固液分離する固液分離機、該固液分離機の入口に接続される汚泥輸送手段、該固液分離機から排出された脱水汚泥を焼却又は焼成する焼却炉又は焼成炉の入口に接続される脱水汚泥輸送手段から選択される少なくとも一箇所に添加することを特徴とする請求項1乃至5のいずれかに記載の苦土りん酸肥料の製造方法。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012273036A JP6021182B2 (ja) | 2012-12-14 | 2012-12-14 | 苦土りん酸肥料の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012273036A JP6021182B2 (ja) | 2012-12-14 | 2012-12-14 | 苦土りん酸肥料の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2014118312A JP2014118312A (ja) | 2014-06-30 |
| JP6021182B2 true JP6021182B2 (ja) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012273036A Expired - Fee Related JP6021182B2 (ja) | 2012-12-14 | 2012-12-14 | 苦土りん酸肥料の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6021182B2 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7210049B2 (ja) * | 2018-03-30 | 2023-01-23 | 国立大学法人 新潟大学 | 汚泥の処理方法、汚泥の処理システムおよび吸着剤の製造方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2729277A1 (de) * | 1977-06-29 | 1979-01-04 | Saarberg Fernwaerme Gmbh | Verfahren zur behandlung von schlaemmen oder aschen, insbesondere von klaerschlamm oder klaerschlammaschen |
| JPS5864294A (ja) * | 1981-10-10 | 1983-04-16 | 栗原 英明 | 乾式混合りん肥 |
| JPH0693260A (ja) * | 1992-09-10 | 1994-04-05 | Toyota Motor Corp | 土壌添加材 |
| JP6025540B2 (ja) * | 2012-12-11 | 2016-11-16 | 太平洋セメント株式会社 | りん酸肥料の製造方法 |
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| Publication number | Publication date |
|---|---|
| JP2014118312A (ja) | 2014-06-30 |
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