NO318104B1 - Avlopsvannbehandling, media for dette og dets fremstilling - Google Patents
Avlopsvannbehandling, media for dette og dets fremstilling Download PDFInfo
- Publication number
- NO318104B1 NO318104B1 NO19973712A NO973712A NO318104B1 NO 318104 B1 NO318104 B1 NO 318104B1 NO 19973712 A NO19973712 A NO 19973712A NO 973712 A NO973712 A NO 973712A NO 318104 B1 NO318104 B1 NO 318104B1
- Authority
- NO
- Norway
- Prior art keywords
- granules
- particle size
- size range
- treatment
- particles
- Prior art date
Links
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000002245 particle Substances 0.000 claims abstract description 89
- 239000008187 granular material Substances 0.000 claims abstract description 63
- 239000000463 material Substances 0.000 claims abstract description 58
- 239000002351 wastewater Substances 0.000 claims abstract description 37
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 29
- 239000011707 mineral Substances 0.000 claims abstract description 29
- 239000004033 plastic Substances 0.000 claims abstract description 28
- 229920003023 plastic Polymers 0.000 claims abstract description 28
- 239000004576 sand Substances 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract description 19
- 238000012856 packing Methods 0.000 claims abstract description 18
- 244000005700 microbiome Species 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- 239000011236 particulate material Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 23
- -1 polyethylene Polymers 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 2
- 239000011324 bead Substances 0.000 claims 2
- 206010010071 Coma Diseases 0.000 claims 1
- 150000003839 salts Chemical class 0.000 abstract description 12
- 235000010755 mineral Nutrition 0.000 description 22
- 235000002639 sodium chloride Nutrition 0.000 description 14
- 230000005484 gravity Effects 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000007931 coated granule Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000002699 waste 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/085—Fluidized beds
-
- 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
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/006—Coating of the granules without description of the process or the device by which the granules are obtained
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
-
- 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
- Y02W10/10—Biological treatment of water, waste water, or sewage
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2998—Coated including synthetic resin or polymer
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biological Treatment Of Waste Water (AREA)
- Removal Of Specific Substances (AREA)
- Processing Of Solid Wastes (AREA)
- Catalysts (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9502743.9A GB9502743D0 (en) | 1995-02-13 | 1995-02-13 | Fluidizable bed media for waste water treatment |
GBGB9523626.1A GB9523626D0 (en) | 1995-11-17 | 1995-11-17 | Waste water treatment media |
PCT/GB1996/000335 WO1996025367A1 (en) | 1995-02-13 | 1996-02-13 | Waste water treatment, media therefor and its manufacture |
Publications (3)
Publication Number | Publication Date |
---|---|
NO973712D0 NO973712D0 (no) | 1997-08-12 |
NO973712L NO973712L (no) | 1997-09-19 |
NO318104B1 true NO318104B1 (no) | 2005-01-31 |
Family
ID=26306492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO19973712A NO318104B1 (no) | 1995-02-13 | 1997-08-12 | Avlopsvannbehandling, media for dette og dets fremstilling |
Country Status (16)
Country | Link |
---|---|
US (2) | US5948262A (de) |
EP (1) | EP0871595B1 (de) |
AT (1) | ATE201664T1 (de) |
AU (1) | AU714279B2 (de) |
CA (1) | CA2211649A1 (de) |
DE (1) | DE69613147T2 (de) |
DK (1) | DK0871595T3 (de) |
ES (1) | ES2160800T3 (de) |
FI (1) | FI973133A (de) |
HU (1) | HU224100B1 (de) |
NO (1) | NO318104B1 (de) |
NZ (1) | NZ301322A (de) |
PL (1) | PL182851B1 (de) |
PT (1) | PT871595E (de) |
RU (1) | RU2175646C2 (de) |
WO (1) | WO1996025367A1 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997006880A2 (en) * | 1995-08-11 | 1997-02-27 | Zenon Environmental Inc. | Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces |
GB2326114A (en) * | 1997-06-12 | 1998-12-16 | Amk Chemicals Limited | Particulate material for waste water treatment |
GB2334029A (en) * | 1998-02-04 | 1999-08-11 | John James Todd | Media for waste water treatment |
DE19829673C2 (de) * | 1998-07-03 | 2003-02-27 | Michael Knobloch | Verfahren und Anlage zur Behandlung von Abwasser aus der Ölfrüchte- und Getreideverarbeitung |
US6726838B2 (en) | 2002-01-07 | 2004-04-27 | Agwise Wise Water Technologies Ltd. | Biofilm carrier, method of manufacture thereof and waste water treatment system employing biofilm carrier |
WO2003042115A1 (en) * | 2001-11-14 | 2003-05-22 | Dharma Living Systems, Inc. | Integrated hydroponic and wetland wastewater treatment systems and associated methods |
US6811700B2 (en) * | 2001-11-14 | 2004-11-02 | Dharma Living Systems, Inc. | Integrated hydroponic and fixed-film wastewater treatment systems and associated methods |
US6863816B2 (en) * | 2002-06-17 | 2005-03-08 | Dharma Living Systems, Inc. | Tidal vertical flow wastewater treatment system and method |
US6881338B2 (en) * | 2002-06-17 | 2005-04-19 | Dharma Living Systems, Inc. | Integrated tidal wastewater treatment system and method |
US7029586B2 (en) * | 2003-02-28 | 2006-04-18 | Dharma Living Systems, Inc. | Integrated tidal wastewater treatment system and method |
US20050183331A1 (en) * | 2003-07-02 | 2005-08-25 | Fountainhead L.L.C. | Super-enhanced aquatic floating island plant habitat |
WO2005026054A2 (en) * | 2003-09-05 | 2005-03-24 | Dharma Living Systems, Inc. | Drain and flood wastewater treatment system and associated methods |
US6896805B2 (en) * | 2003-10-20 | 2005-05-24 | Dharma Living Systems, Inc. | Tidal vertical flow wastewater treatment system and method |
DE10351176A1 (de) * | 2003-11-03 | 2005-06-16 | Zeiss, Karl Reinhard, Dipl.-Ing. | Verfahren und Vorrichtung zur Herstellung eines Verbundmaterials |
CA2562080A1 (en) * | 2004-04-06 | 2005-10-27 | Kinetico Incorporated | Buoyant filter media |
US7347940B2 (en) * | 2004-06-17 | 2008-03-25 | Worrell Water Technologies, Llc | Nitrogen removal system and method for wastewater treatment lagoons |
US8241717B1 (en) | 2008-08-20 | 2012-08-14 | SepticNet Inc. | Carbon-based biofilm carrier |
US8753511B2 (en) | 2008-09-03 | 2014-06-17 | AQ-WISE—Wise Water Technologies Ltd. | Integrated biological wastewater treatment and clarification |
EP2376391A4 (de) * | 2008-12-22 | 2012-09-12 | Univ Utah Res Found | Unterwassersystem und -verfahren zur entfernung unerwünschter substanzen aus wässrigen medien |
US8758613B2 (en) * | 2009-10-16 | 2014-06-24 | Aqwise-Wise Water Technologies Ltd | Dynamic anaerobic aerobic (DANA) reactor |
WO2013081734A1 (en) * | 2011-11-28 | 2013-06-06 | Ticona Llc | Compacted filter beds comprising non-sintered, buoyant filter media and methods relating thereto |
US9901848B2 (en) * | 2014-10-15 | 2018-02-27 | Xerox Corporation | Fluid stabilizer disc |
US10342189B2 (en) | 2016-05-17 | 2019-07-09 | Bubbleclear | Aerobic, bioremediation treatment system comprising floating inert media in an aqueous environment |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3864443A (en) * | 1970-05-27 | 1975-02-04 | Arthur Hopkins | Method of making light-weight concrete aggregate |
GB1579623A (en) * | 1976-06-08 | 1980-11-19 | Clough G F G | Filtration medium for the biological treatment of waste water |
US4243696A (en) * | 1979-01-22 | 1981-01-06 | W. S. Rockwell Company | Method of making a particle-containing plastic coating |
DE3402697A1 (de) * | 1984-01-26 | 1985-08-01 | Bayer Ag, 5090 Leverkusen | Verwendung von hydrophilen, hochgefuellten polyurethanmassen zur biologischen abwasserreinigung |
JPH0634993B2 (ja) * | 1984-09-17 | 1994-05-11 | 学校法人早稲田大学 | 三相流動層水質浄化方法 |
CH663782A5 (en) * | 1984-12-21 | 1988-01-15 | Simon N Cannazza | Carrier for biological treatment reactor - with surfaces coated by activated carbon granules on binder |
EP0324314A1 (de) * | 1988-01-14 | 1989-07-19 | 4E S.r.l. | Trägerkörper und Reaktor zur biologischen Behandlung von Flüssigkeiten und Verwendung derselben |
US5166072A (en) * | 1986-06-26 | 1992-11-24 | Bayer Aktiengesellschaft | Apparatus for the cultivation of immobilized micro-organisms |
JPH0775711B2 (ja) * | 1986-06-28 | 1995-08-16 | 清水建設株式会社 | 浮遊性造粒物とその製造方法 |
US4983299A (en) * | 1989-04-10 | 1991-01-08 | Allied-Signal | Removal of phenols from waste water by a fixed bed reactor |
AU7141691A (en) * | 1990-01-23 | 1991-08-21 | Kaldnes Miljoteknologi As | Method and reactor for purification of water |
US5126042A (en) * | 1991-10-31 | 1992-06-30 | Malone Ronald F | Floating media biofilter |
US5403799A (en) * | 1992-12-21 | 1995-04-04 | W. R. Grace & Co.-Conn. | Process upset-resistant inorganic supports for bioremediation |
GB9326329D0 (en) * | 1993-12-23 | 1994-02-23 | Todd John J | Waste water treatment |
US5486292A (en) * | 1994-03-03 | 1996-01-23 | E. I. Du Pont De Nemours And Company | Adsorbent biocatalyst porous beads |
-
1996
- 1996-02-13 AU AU46713/96A patent/AU714279B2/en not_active Ceased
- 1996-02-13 US US08/894,077 patent/US5948262A/en not_active Expired - Lifetime
- 1996-02-13 DE DE69613147T patent/DE69613147T2/de not_active Expired - Fee Related
- 1996-02-13 CA CA 2211649 patent/CA2211649A1/en not_active Abandoned
- 1996-02-13 EP EP96902375A patent/EP0871595B1/de not_active Expired - Lifetime
- 1996-02-13 ES ES96902375T patent/ES2160800T3/es not_active Expired - Lifetime
- 1996-02-13 HU HU9801413A patent/HU224100B1/hu not_active IP Right Cessation
- 1996-02-13 NZ NZ301322A patent/NZ301322A/en unknown
- 1996-02-13 DK DK96902375T patent/DK0871595T3/da active
- 1996-02-13 PL PL96321777A patent/PL182851B1/pl not_active IP Right Cessation
- 1996-02-13 WO PCT/GB1996/000335 patent/WO1996025367A1/en active IP Right Grant
- 1996-02-13 PT PT96902375T patent/PT871595E/pt unknown
- 1996-02-13 RU RU97115556A patent/RU2175646C2/ru not_active IP Right Cessation
- 1996-02-13 AT AT96902375T patent/ATE201664T1/de not_active IP Right Cessation
-
1997
- 1997-07-28 FI FI973133A patent/FI973133A/fi not_active Application Discontinuation
- 1997-08-12 NO NO19973712A patent/NO318104B1/no unknown
-
1999
- 1999-06-22 US US09/337,990 patent/US6156204A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
HU224100B1 (hu) | 2005-05-30 |
RU2175646C2 (ru) | 2001-11-10 |
HUP9801413A3 (en) | 1999-05-28 |
EP0871595A1 (de) | 1998-10-21 |
HUP9801413A2 (hu) | 1998-09-28 |
EP0871595B1 (de) | 2001-05-30 |
NZ301322A (en) | 1998-09-24 |
DE69613147D1 (de) | 2001-07-05 |
PL321777A1 (en) | 1997-12-22 |
PT871595E (pt) | 2001-11-30 |
ATE201664T1 (de) | 2001-06-15 |
WO1996025367A1 (en) | 1996-08-22 |
DK0871595T3 (da) | 2001-09-10 |
CA2211649A1 (en) | 1996-08-22 |
NO973712L (no) | 1997-09-19 |
ES2160800T3 (es) | 2001-11-16 |
AU714279B2 (en) | 1999-12-23 |
DE69613147T2 (de) | 2002-03-21 |
NO973712D0 (no) | 1997-08-12 |
US5948262A (en) | 1999-09-07 |
US6156204A (en) | 2000-12-05 |
AU4671396A (en) | 1996-09-04 |
PL182851B1 (pl) | 2002-03-29 |
FI973133A (fi) | 1997-10-08 |
FI973133A0 (fi) | 1997-07-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO318104B1 (no) | Avlopsvannbehandling, media for dette og dets fremstilling | |
US7785469B2 (en) | Waste water treatment process system | |
An et al. | Recent patents on immobilized microorganism technology and its engineering application in wastewater treatment | |
Verma et al. | Aerobic biofiltration processes—Advances in wastewater treatment | |
CA2630328A1 (en) | Liquid aeration apparatus and wastewater treatment apparatus | |
TW201107252A (en) | Suspended media membrane biological reactor system and process including suspension system and multiple biological reactor zones | |
CN203043658U (zh) | 一种快速过滤池 | |
CN109231442B (zh) | 一种脱除水中硝态氮的抽屉式反应器 | |
NO121205B (de) | ||
Ibrahim et al. | Improvements in biofilm processes for wastewater treatment | |
JPH0775711B2 (ja) | 浮遊性造粒物とその製造方法 | |
CN106517677A (zh) | 一种再生水景观水体的水质保持结构 | |
CN108358397A (zh) | 一种用于改善生态环境的多功能污水处理装置 | |
AU2005306597B2 (en) | Waste water treatment process system | |
JP2005021831A (ja) | 微生物繁殖用担持体およびその使用方法 | |
US20240228346A9 (en) | Biological Wastewater Treatment System | |
JP2879897B2 (ja) | 発泡プラスチック粒子を用いる懸濁物除去方法と装置 | |
JPS63232892A (ja) | 浸漬濾床法生物学的処理装置の洗浄方法 | |
JPH0747355A (ja) | Codを含む水の処理材及びその処理材の製造方法並びにcodを含む水の処理方法 | |
JPS6384692A (ja) | 下水の好気性処理方法 | |
JPS6064693A (ja) | 流動床生物酸化処理方法 | |
JPH0210716B2 (de) | ||
JPH0227037B2 (de) | ||
CN115677034A (zh) | 一种用于污水处理的组合式填料球 | |
JPH09308892A (ja) | 排水の生物学的浄化方法及び排水処理装置 |