AR061659A1 - Proceso biotecnologico para el tratamiento de lodos hidroxidos con contenido de as provenientes de procesos de potabilizacion de agua , que utilizan fecl3 como coagulante, mediante la accion de bacterias reductoras de sulfato - Google Patents
Proceso biotecnologico para el tratamiento de lodos hidroxidos con contenido de as provenientes de procesos de potabilizacion de agua , que utilizan fecl3 como coagulante, mediante la accion de bacterias reductoras de sulfatoInfo
- Publication number
- AR061659A1 AR061659A1 ARP070102838A ARP070102838A AR061659A1 AR 061659 A1 AR061659 A1 AR 061659A1 AR P070102838 A ARP070102838 A AR P070102838A AR P070102838 A ARP070102838 A AR P070102838A AR 061659 A1 AR061659 A1 AR 061659A1
- Authority
- AR
- Argentina
- Prior art keywords
- sludge
- sulfate reducing
- treated
- fecl3
- coagulant
- Prior art date
Links
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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/345—Biological treatment of water, waste water, or sewage characterised by the microorganisms used for biological oxidation or reduction of sulfur compounds
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/103—Arsenic compounds
Abstract
La presente divulga un proceso biotecnologico para el tratamiento de lodos hidroxidos con contenido de As provenientes de procesos de potabilizacion de agua, que utilizan FeCl3, como coagulante, mediante la accion de bacterias reductoras de sulfato, que comprende las siguientes etapas: a) preparar el cultivo de microorganismos reductores de sulfato (SRB) para el proceso, dicho cultivo proviene del mismo lodo que se debe tratar; b) poner en contacto en un bioreactor anaerobio y por un periodo aproximado de 5 días, el lodo a tratar, el inoculo obtenido de la etapa (a) y nutrientes como etanol, sulfato y levadura a una temperatura controlada y con agitacion suficiente que permita la homogeneizacion del lodo de tal forma que no queden zonas sin tratamiento; c) sedimentar el lodo tratado; por un periodo aproximado de 3 días, el clarificado se recupera y el sedimento se somete luego al proceso de desaguado mediante filtracion o centrifugacion; d) filtrar el residuo solido proveniente del sedimentador; e) caracterizar el residuo final. El proceso desarrollado busca modificar las características físico-químicas de los lodos producidos de manera tal de facilitar la utilizacion de métodos de deshidratacion mecánica que permiten disminuir el volumen de los lodos producidos facilitando por tanto su disposicion final.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CL200601645 | 2006-06-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
AR061659A1 true AR061659A1 (es) | 2008-09-10 |
Family
ID=38875486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP070102838A AR061659A1 (es) | 2006-06-27 | 2007-06-26 | Proceso biotecnologico para el tratamiento de lodos hidroxidos con contenido de as provenientes de procesos de potabilizacion de agua , que utilizan fecl3 como coagulante, mediante la accion de bacterias reductoras de sulfato |
Country Status (2)
Country | Link |
---|---|
US (1) | US7422687B2 (es) |
AR (1) | AR061659A1 (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102167443B (zh) * | 2011-05-23 | 2012-06-13 | 合肥工业大学 | 利用厌氧颗粒污泥去除养殖废水中有机砷的方法 |
CN102757153B (zh) * | 2012-07-12 | 2014-05-28 | 山东天兴生物科技有限公司 | 一种12-羟基硬脂酸的生产废水处理方法 |
WO2015134501A1 (en) | 2014-03-04 | 2015-09-11 | University Of South Florida | Concentrically baffled reactors and systems that incorporate them |
CN108531373A (zh) * | 2018-03-15 | 2018-09-14 | 中国地质大学(武汉) | 一种砷氧化细菌构建的生物膜反应器 |
CN109133362A (zh) * | 2018-08-06 | 2019-01-04 | 中国地质大学(武汉) | 一种耐酸砷氧化细菌群落生物膜反应器的构建方法及应用 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6387669B1 (en) * | 1998-12-21 | 2002-05-14 | Battelle Memorial Institute | Methods for producing hydrogen (BI) sulfide and/or removing metals |
-
2007
- 2007-06-26 AR ARP070102838A patent/AR061659A1/es active IP Right Grant
- 2007-06-27 US US11/769,388 patent/US7422687B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20080000831A1 (en) | 2008-01-03 |
US7422687B2 (en) | 2008-09-09 |
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