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Eutrophication monitorings (1 Viewer)
- Thread starter shadowRRL
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Giant Lobster
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Its linked to the likelihood of algal blooms occuring, which is in turn linked to the availability of nutrients (nitrates and phosphates), sunlight supply, temperature and whether the waterbody is moving (river, stream etc) or stationary (lake, pond etc). Though I think nutrients should be focused on more...
Algal blooms accelerate eutrophication (which by itself is a natural process) and under the aid of humans (effluent discharge, sewerage etc) its called cultural eutrophication.
Hope that helps.
Algal blooms accelerate eutrophication (which by itself is a natural process) and under the aid of humans (effluent discharge, sewerage etc) its called cultural eutrophication.
Hope that helps.
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+:: $i[Q]u3 ::+
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the N
ratio needs to be greater than 10:1, w/ nitrogen 0.1~1ppm and P 0.01~0.1 ppm in order to protect against eutr.
you need to measure the phosphate using methods like molybdenum blue method (a colorimetric method) - add ammonium molybdenate, which forms a pale yellow complex. Add ascorbic acid, which turns it blue. shine light thru the blue and use a colorimeter to detect the light and measure p content.
for nitrogen, the Kjeldahl method measures organic nitrogen, and other nitrates/nitrites can be measured using colorimetriy, which turns nitrates into nitrites, reagent is added which forms a purplish pink azo-dye.
ratio needs to be greater than 10:1, w/ nitrogen 0.1~1ppm and P 0.01~0.1 ppm in order to protect against eutr.you need to measure the phosphate using methods like molybdenum blue method (a colorimetric method) - add ammonium molybdenate, which forms a pale yellow complex. Add ascorbic acid, which turns it blue. shine light thru the blue and use a colorimeter to detect the light and measure p content.
for nitrogen, the Kjeldahl method measures organic nitrogen, and other nitrates/nitrites can be measured using colorimetriy, which turns nitrates into nitrites, reagent is added which forms a purplish pink azo-dye.
wow that sounds pretty detailed sique
but what i wrote for my notes entials a simpler method
for phosphates all u need to do add barium nitrate and a white precipitate will form...you can just then find out through gravimetric analysis
for nitrates u add FeSO4, followed by conc H2SO4, and a brown ring will occur at the junction, this is aka as the brown ring test
but what i wrote for my notes entials a simpler method
for phosphates all u need to do add barium nitrate and a white precipitate will form...you can just then find out through gravimetric analysis
for nitrates u add FeSO4, followed by conc H2SO4, and a brown ring will occur at the junction, this is aka as the brown ring test
Constip8edSkunk
Joga Bonito
i had what +:: $i[Q]u3 ::+ said
define eutrophication as the rapid growth of algae & cyanobacteria (algal bloom) due 2 the enrichment of nitrogen and phosphorus in water so these must b monitored 2 b within the safety range
phosphorus mainly occur as phosphate, use colorimetry
total nitrogen is the sum of organic nitrogen, nitrates and nitrites
organic nitrogen can b found by khejhdal(or sumfin) digestion and then back titration
nitrates/nitrites use colorimetry
i got this from macmillan btw, they have quite detailed examples explaining all these.
define eutrophication as the rapid growth of algae & cyanobacteria (algal bloom) due 2 the enrichment of nitrogen and phosphorus in water so these must b monitored 2 b within the safety range
phosphorus mainly occur as phosphate, use colorimetry
total nitrogen is the sum of organic nitrogen, nitrates and nitrites
organic nitrogen can b found by khejhdal(or sumfin) digestion and then back titration
nitrates/nitrites use colorimetry
i got this from macmillan btw, they have quite detailed examples explaining all these.
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