ES450609A1 - A PROCEDURE FOR TESTING WASTEWATER IN ORDER TO DETERMINE THE LEVEL OF TOXIC SUBSTANCES THAT INHIBIT BACTERIAL ACTIVITY IN THEM. - Google Patents
A PROCEDURE FOR TESTING WASTEWATER IN ORDER TO DETERMINE THE LEVEL OF TOXIC SUBSTANCES THAT INHIBIT BACTERIAL ACTIVITY IN THEM.Info
- Publication number
- ES450609A1 ES450609A1 ES450609A ES450609A ES450609A1 ES 450609 A1 ES450609 A1 ES 450609A1 ES 450609 A ES450609 A ES 450609A ES 450609 A ES450609 A ES 450609A ES 450609 A1 ES450609 A1 ES 450609A1
- Authority
- ES
- Spain
- Prior art keywords
- oxygen
- level
- procedure
- toxic substances
- vessel
- 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
Links
- 230000001580 bacterial effect Effects 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- 231100000614 poison Toxicity 0.000 title abstract 3
- 239000003440 toxic substance Substances 0.000 title abstract 3
- 239000002351 wastewater Substances 0.000 title abstract 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 6
- 239000001301 oxygen Substances 0.000 abstract 6
- 229910052760 oxygen Inorganic materials 0.000 abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 238000000855 fermentation Methods 0.000 abstract 3
- 230000004151 fermentation Effects 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 230000036284 oxygen consumption Effects 0.000 abstract 3
- 239000003085 diluting agent Substances 0.000 abstract 2
- 241000894006 Bacteria Species 0.000 abstract 1
- 238000005273 aeration Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000007791 liquid phase Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 235000015097 nutrients Nutrition 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1806—Biological oxygen demand [BOD] or chemical oxygen demand [COD]
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Emergency Medicine (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Activated Sludge Processes (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
A procedure for testing wastewater in order to determine the level of toxic substances that inhibit bacterial activity, in which procedure the wastewater is charged with oxygen at atmospheric pressure and mixed with a bacteria-carrying medium and the Oxygen consumption of the mixture is used as a measure of the level of said toxic substances, characterized in that a predetermined quantity (A), previously aerated, of bacteria-bearing medium of known activity, is mixed with a predetermined quantity (B), previously aerated, of residual water, or with such a quantity (B) of residual water and with a predetermined quantity (C), previously aerated, of clean diluent water, in a fermentation vessel that is not completely filled with the mixture and in which it performs aeration to saturate said mixture with oxygen under atmospheric conditions, after which the supply of air to said container is terminated, it is closed a hermetically the vessel, and the subsequent consumption of oxygen from the liquid in the fermentation vessel is determined, and this determination is used as a measure of said level to be determined, being the quantity (B), or the added quantities (B) and (C), if diluent water is used, such as to meet the conditions that the amount of bacterial nutrient material in the fermentation vessel is at least sufficient to make the biochemical oxygen demand of the contents of the vessel greater than the initial supply of oxygen in it, at the moment when it is hermetically sealed, and to allow the bacterial activity to reach its maximum, and the quantity (A) being small enough to meet the condition that said oxygen consumption is limited to a regime such that the oxygen content of the gas and liquid phases of the container remains substantially in equilibrium during the period in which said oxygen consumption is determined . (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7509570A NL7509570A (en) | 1975-08-12 | 1975-08-12 | METHOD AND DEVICE FOR DETECTING TOXIC SUBSTANCES IN WASTE WATER. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES450609A1 true ES450609A1 (en) | 1977-12-16 |
Family
ID=19824287
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES450609A Expired ES450609A1 (en) | 1975-08-12 | 1976-08-11 | A PROCEDURE FOR TESTING WASTEWATER IN ORDER TO DETERMINE THE LEVEL OF TOXIC SUBSTANCES THAT INHIBIT BACTERIAL ACTIVITY IN THEM. |
| ES461136A Expired ES461136A1 (en) | 1975-08-12 | 1977-07-29 | Waste water testing method of measuring level of poisonous substance checking activity of bacteria |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES461136A Expired ES461136A1 (en) | 1975-08-12 | 1977-07-29 | Waste water testing method of measuring level of poisonous substance checking activity of bacteria |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5223396A (en) |
| AT (1) | AT348951B (en) |
| BE (1) | BE844824A (en) |
| DE (1) | DE2636109A1 (en) |
| ES (2) | ES450609A1 (en) |
| FR (1) | FR2321128A1 (en) |
| IT (1) | IT1066112B (en) |
| NL (1) | NL7509570A (en) |
| SE (1) | SE7608945L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2081767A1 (en) * | 1994-06-06 | 1996-03-01 | Soliveres Juan Emilio Serrano | Method and device for the continuous analysis of the breathing of an active sludge. |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2428842A1 (en) * | 1978-06-15 | 1980-01-11 | Rhone Poulenc Ind | METHOD FOR MEASURING AND / OR DETECTING TOXICITY |
| JPS56108951A (en) * | 1980-02-01 | 1981-08-28 | Nissin Electric Co Ltd | Method for deciding whether biological treatment for liquid is possible or not |
| JPS56108950A (en) * | 1980-02-01 | 1981-08-28 | Nissin Electric Co Ltd | Detection of poisonous matter and its apparatus |
| JP5347711B2 (en) * | 2009-05-21 | 2013-11-20 | 新日鐵住金株式会社 | Detection method of harmful substances in water |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2240444A1 (en) * | 1972-08-17 | 1974-02-28 | Voith Gmbh J M | PROCESS AND EQUIPMENT FOR DETERMINING THE INFLUENCES OF WASTE WATER AND ACTIVATED SLUDGE ON RESPIRATORY OXYGEN REQUIREMENTS OF BIOLOGICAL TREATMENT PLANTS |
-
1975
- 1975-08-12 NL NL7509570A patent/NL7509570A/en unknown
-
1976
- 1976-08-03 BE BE169504A patent/BE844824A/en unknown
- 1976-08-05 AT AT582776A patent/AT348951B/en not_active IP Right Cessation
- 1976-08-10 FR FR7624376A patent/FR2321128A1/en not_active Withdrawn
- 1976-08-10 SE SE7608945A patent/SE7608945L/en unknown
- 1976-08-11 IT IT50851/76A patent/IT1066112B/en active
- 1976-08-11 JP JP51095910A patent/JPS5223396A/en active Pending
- 1976-08-11 ES ES450609A patent/ES450609A1/en not_active Expired
- 1976-08-11 DE DE19762636109 patent/DE2636109A1/en active Pending
-
1977
- 1977-07-29 ES ES461136A patent/ES461136A1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2081767A1 (en) * | 1994-06-06 | 1996-03-01 | Soliveres Juan Emilio Serrano | Method and device for the continuous analysis of the breathing of an active sludge. |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA582776A (en) | 1978-07-15 |
| ES461136A1 (en) | 1978-06-16 |
| IT1066112B (en) | 1985-03-04 |
| JPS5223396A (en) | 1977-02-22 |
| DE2636109A1 (en) | 1977-03-03 |
| SE7608945L (en) | 1977-02-13 |
| NL7509570A (en) | 1977-02-15 |
| FR2321128A1 (en) | 1977-03-11 |
| BE844824A (en) | 1977-02-03 |
| AT348951B (en) | 1979-03-12 |
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