JPS55103461A - Method and device for continuous measurement of density of nitric acid and nitrous acid ions contained in industrial waste water - Google Patents
Method and device for continuous measurement of density of nitric acid and nitrous acid ions contained in industrial waste waterInfo
- Publication number
- JPS55103461A JPS55103461A JP1153979A JP1153979A JPS55103461A JP S55103461 A JPS55103461 A JP S55103461A JP 1153979 A JP1153979 A JP 1153979A JP 1153979 A JP1153979 A JP 1153979A JP S55103461 A JPS55103461 A JP S55103461A
- Authority
- JP
- Japan
- Prior art keywords
- filtrate
- density
- alkaline
- earth
- metal ion
- 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.)
- Granted
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE: To secure the quick and accurate measurement for the density of NO3 - and NO2 - by filtering the analysis sample solution with addition of the salt-group solution containing the alkaline (earth) metal ion to the filtrate and then sending the filtrate passed through the active carbon layer to the flow cell of the ultraviolet ray absorption meter to carry out the specified operation based on the measured wavelength.
CONSTITUTION: The industrial waste water is sent onto drum 5 of continuous filter unit 4 via pump 2, and the filtrate is put into acceptor 9 via sucking pump 8. The filtrate and the salt-group solution containing the alkaline (earth) metal ion are sent via quantitative pumps 10a and 10b to activated carbon column 13 from tank 11 and through mixture 3-way joint 12. The colored components and the obstacles for analysis such as the organic matter or the like contained in the filtrate are adsorbed to column 13, but NO3 - and NO2 - are not adsorbed if the alkaline (earth) metal ion is contained in the filtrate. Then the filtrate is sent to cells 15a and 15b of ultraviolet ray absorption meters 16a and 16b for measurement of NO3 - and NO2 - each. And the result of measurement is recorded to recording meters 17a and 17b. Then the NO3 - density is calculated by subtracting the absorption amount obtained by multiplying the absorption amount of NO2 - near 355nm by 0.3 from the absorption amount of NO3 - near 302nm.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1153979A JPS5815064B2 (en) | 1979-02-03 | 1979-02-03 | Continuous measurement method for nitrate and nitrite ion concentrations in factory wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1153979A JPS5815064B2 (en) | 1979-02-03 | 1979-02-03 | Continuous measurement method for nitrate and nitrite ion concentrations in factory wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55103461A true JPS55103461A (en) | 1980-08-07 |
| JPS5815064B2 JPS5815064B2 (en) | 1983-03-23 |
Family
ID=11780758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1153979A Expired JPS5815064B2 (en) | 1979-02-03 | 1979-02-03 | Continuous measurement method for nitrate and nitrite ion concentrations in factory wastewater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5815064B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6359396A (en) * | 1986-08-30 | 1988-03-15 | Kankyo Eng Kk | Biological treatment of waste water |
| JPS63106555A (en) * | 1986-10-23 | 1988-05-11 | Fuji Electric Co Ltd | Apparatus for analyzing nitrogen compound in water |
| JPS64461A (en) * | 1987-03-09 | 1989-01-05 | Minoru Tada | Instrument for measuring nitrogen compound in water |
| JPH04200683A (en) * | 1990-11-30 | 1992-07-21 | Ebara Infilco Co Ltd | Method for removing nitrate nitrogen |
| JP2007501112A (en) * | 2003-08-04 | 2007-01-25 | オテヴェ・ソシエテ・アノニム | Biological water treatment process and plant using activated sludge process to control aeration |
-
1979
- 1979-02-03 JP JP1153979A patent/JPS5815064B2/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6359396A (en) * | 1986-08-30 | 1988-03-15 | Kankyo Eng Kk | Biological treatment of waste water |
| JPS63106555A (en) * | 1986-10-23 | 1988-05-11 | Fuji Electric Co Ltd | Apparatus for analyzing nitrogen compound in water |
| JPS64461A (en) * | 1987-03-09 | 1989-01-05 | Minoru Tada | Instrument for measuring nitrogen compound in water |
| JPH04200683A (en) * | 1990-11-30 | 1992-07-21 | Ebara Infilco Co Ltd | Method for removing nitrate nitrogen |
| JP2007501112A (en) * | 2003-08-04 | 2007-01-25 | オテヴェ・ソシエテ・アノニム | Biological water treatment process and plant using activated sludge process to control aeration |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5815064B2 (en) | 1983-03-23 |
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