DE2725384C2 - Verwendung von Magnesiateilchen - Google Patents
Verwendung von MagnesiateilchenInfo
- Publication number
- DE2725384C2 DE2725384C2 DE2725384A DE2725384A DE2725384C2 DE 2725384 C2 DE2725384 C2 DE 2725384C2 DE 2725384 A DE2725384 A DE 2725384A DE 2725384 A DE2725384 A DE 2725384A DE 2725384 C2 DE2725384 C2 DE 2725384C2
- Authority
- DE
- Germany
- Prior art keywords
- magnesia
- adsorbent
- adsorption
- wastewater
- magnesium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 title claims description 66
- 239000000395 magnesium oxide Substances 0.000 title claims description 33
- 239000002245 particle Substances 0.000 title claims description 10
- 239000003463 adsorbent Substances 0.000 claims description 40
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 13
- 239000000347 magnesium hydroxide Substances 0.000 claims description 13
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 13
- 239000005995 Aluminium silicate Substances 0.000 claims description 8
- 235000012211 aluminium silicate Nutrition 0.000 claims description 8
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 8
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 7
- 239000001095 magnesium carbonate Substances 0.000 claims description 7
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 7
- 150000002681 magnesium compounds Chemical class 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 5
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 2
- 235000012245 magnesium oxide Nutrition 0.000 description 27
- 239000002351 wastewater Substances 0.000 description 26
- 238000001179 sorption measurement Methods 0.000 description 21
- 238000001354 calcination Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 15
- 238000012360 testing method Methods 0.000 description 13
- 238000002845 discoloration Methods 0.000 description 11
- 239000000203 mixture Substances 0.000 description 9
- 239000000975 dye Substances 0.000 description 7
- 239000000123 paper Substances 0.000 description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000008929 regeneration Effects 0.000 description 6
- 238000011069 regeneration method Methods 0.000 description 6
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 5
- 239000000292 calcium oxide Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 5
- 230000008033 biological extinction Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000004061 bleaching Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229910001649 dickite Inorganic materials 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052621 halloysite Inorganic materials 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- OUHCLAKJJGMPSW-UHFFFAOYSA-L magnesium;hydrogen carbonate;hydroxide Chemical compound O.[Mg+2].[O-]C([O-])=O OUHCLAKJJGMPSW-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/041—Oxides or hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3433—Regenerating or reactivating of sorbents or filter aids other than those covered by B01J20/3408 - B01J20/3425
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/42—Materials comprising a mixture of inorganic materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Dispersion Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6621476A JPS5348352A (en) | 1976-06-07 | 1976-06-07 | Process for trating waste water containing organic contaminated matters |
| JP10457876A JPS5330489A (en) | 1976-09-01 | 1976-09-01 | Magnesia adsorbent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2725384A1 DE2725384A1 (de) | 1977-12-15 |
| DE2725384C2 true DE2725384C2 (de) | 1985-08-29 |
Family
ID=26407391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2725384A Expired - Lifetime DE2725384C2 (de) | 1976-06-07 | 1977-06-04 | Verwendung von Magnesiateilchen |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US4147665A (OSRAM) |
| CA (1) | CA1099691A (OSRAM) |
| DE (1) | DE2725384C2 (OSRAM) |
| FI (1) | FI67070C (OSRAM) |
| SE (1) | SE430325B (OSRAM) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2024191B (en) * | 1978-06-27 | 1982-10-13 | Katsukawa H | Treating agents for waste water and a process and equipment for using the same |
| EP0029625B1 (en) * | 1979-11-27 | 1983-06-08 | Shell Internationale Researchmaatschappij B.V. | Process for the purification of water |
| FR2561074B1 (fr) * | 1984-03-15 | 1986-10-31 | Lille I Universite Sciences Te | Procede de decoloration de substances colorees par des composes tetrapyrroliques, et produits obtenus |
| US4769079A (en) * | 1985-06-24 | 1988-09-06 | The Dow Chemical Company | Insoluble pigments and preparation thereof |
| US4929381A (en) * | 1985-06-24 | 1990-05-29 | The Dow Chemical Company | Inorganic anion exchangers and preparation thereof |
| US4840676A (en) * | 1985-06-24 | 1989-06-20 | The Dow Chemical Company | Insoluble pigments and preparation thereof |
| US4769080A (en) * | 1985-06-24 | 1988-09-06 | The Dow Chemical Company | Insoluble pigments and preparation thereof |
| US4773936A (en) * | 1985-06-24 | 1988-09-27 | The Dow Chemical Company | Insoluble pigments and preparation thereof |
| US5320758A (en) * | 1993-06-29 | 1994-06-14 | Church & Dwight Co., Inc. | Method of recycling amine saponifiers used in cleaning electronic circuit boards |
| US5320756A (en) * | 1993-06-29 | 1994-06-14 | Church & Dwight Co., Inc. | Method of treating aqueous alkaline effluents derived from cleaning electronic circuit assemblies |
| IT1276172B1 (it) * | 1995-11-27 | 1997-10-27 | Getters Spa | Processo per la produzione di ossido di calcio, ossido di stronzio ed ossido di bario ad elevata velocita' di assorbimento di acqua ed |
| US6254894B1 (en) | 1996-04-05 | 2001-07-03 | Zodiac Pool Care, Inc. | Silver self-regulating water purification compositions and methods |
| US5772896A (en) * | 1996-04-05 | 1998-06-30 | Fountainhead Technologies | Self-regulating water purification composition |
| US6280503B1 (en) * | 1999-08-06 | 2001-08-28 | Air Products And Chemicals, Inc. | Carbon dioxide adsorbents containing magnesium oxide suitable for use at high temperatures |
| US6207612B1 (en) * | 2000-01-03 | 2001-03-27 | Norton Chemical Process Products Corporation | Removal of impurities from hydrocarbon streams |
| US6372124B2 (en) * | 2000-01-03 | 2002-04-16 | Saint-Gobain Norpro Corporation | Removal of impurities from hydrocarbon streams |
| WO2001070241A1 (en) * | 2000-03-20 | 2001-09-27 | Daricom Ltd., Natural Health Products | Production and use of dissolved bioavailable selenium |
| AU2002218177A1 (en) * | 2000-09-26 | 2002-04-08 | Bayer Aktiengesellschaft | Contacting and adsorbent granules |
| ES2184638B1 (es) * | 2001-09-14 | 2004-08-16 | Consejo Superior Investg. Cientificas | Procedimiento de descontaminacion de especies metalicas en aguas mediante magnesia caustica. |
| EP1715947B8 (en) * | 2004-01-22 | 2013-07-17 | Indian Institute of Technology | A method for decontaminating water containing pesticides |
| KR100598579B1 (ko) | 2004-10-11 | 2006-07-07 | 경북대학교 산학협력단 | Fe를 첨가한 마그네슘계 탈황 흡수제 및 탈황 흡수제 제조방법 |
| EP2221285A1 (en) | 2009-02-24 | 2010-08-25 | Ecotech Polka Sp. z.o.o. | Composition and method for stabilising environmentally-harmful substances; use of non-ferrous metal salts and oxides to stabilise environmentally-harmful substances with caustic magnesium oxide |
| JP2013031795A (ja) * | 2011-08-01 | 2013-02-14 | Sumitomo Osaka Cement Co Ltd | 溶出低減材および溶出低減材の製造方法 |
| US9505635B2 (en) * | 2013-12-20 | 2016-11-29 | King Fahd University Of Petroleum And Minerals | Wastewater filtration system and method |
| CN113842871B (zh) * | 2021-10-19 | 2022-05-31 | 山东建筑大学 | 一种抗干扰除氟吸附剂制备方法 |
| CN118343807B (zh) * | 2024-06-17 | 2024-09-06 | 潍坊万丰新材料科技有限公司 | 一种湿法冶炼用氧化镁的制备方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2292632A (en) * | 1938-07-06 | 1942-08-11 | Herbert H Greger | Adsorbent material and process of manufacturing same |
| US2491033A (en) * | 1945-06-11 | 1949-12-13 | Permanente Metals Corp | Process for preparing magnesium oxide and hydroxide |
| JPS5427070B2 (OSRAM) * | 1974-05-31 | 1979-09-07 | ||
| US3992329A (en) * | 1974-09-18 | 1976-11-16 | Corning Glass Works | Support of alumina-magnesia for the adsorption of glucose isomerase enzymes |
| US4118319A (en) * | 1976-03-11 | 1978-10-03 | Toyo Soda Manufacturing Co., Ltd. | Treatment of sludge |
| US4125466A (en) * | 1976-05-18 | 1978-11-14 | Toyo Soda Manufacturing Co., Ltd. | Treatment of sludge comprising biological aggregate |
| JPS5345054A (en) * | 1976-10-05 | 1978-04-22 | Agency Of Ind Science & Technol | Treatment of waste water using inorganic adsorbent |
-
1977
- 1977-05-31 US US05/802,117 patent/US4147665A/en not_active Expired - Lifetime
- 1977-06-04 DE DE2725384A patent/DE2725384C2/de not_active Expired - Lifetime
- 1977-06-06 CA CA279,887A patent/CA1099691A/en not_active Expired
- 1977-06-06 SE SE7706537A patent/SE430325B/xx unknown
- 1977-06-07 FI FI771806A patent/FI67070C/fi not_active IP Right Cessation
- 1977-11-14 US US05/851,178 patent/US4216084A/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| NICHTS-ERMITTELT |
Also Published As
| Publication number | Publication date |
|---|---|
| FI67070B (fi) | 1984-09-28 |
| FI771806A7 (OSRAM) | 1977-12-08 |
| SE7706537L (sv) | 1977-12-08 |
| US4147665A (en) | 1979-04-03 |
| DE2725384A1 (de) | 1977-12-15 |
| US4216084A (en) | 1980-08-05 |
| FI67070C (fi) | 1985-01-10 |
| SE430325B (sv) | 1983-11-07 |
| CA1099691A (en) | 1981-04-21 |
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