Algae growth

The maximum temperature the drains and the water sinks can accept (bearing in mind thermal stresses and corrosion in discharge pipelines, and algae growth and oxygen depletion in the watercourses)... 

Ciba-Geigy Ltd (1988a) Report on the alga growth inhibition test with TK 11339. Basel, Ciba-Geigy Ltd, 15 March (Project No. 884110). 

Plant nutrients From sewage and drainage of fertilized farmland. Causes rapid algae growth that uses up oxygen (eutrophication). 

Cyanides can be fatal to fish at <1 ppm. Because of concern over the possible in vivo conversion of nitrate into carcinogenic nitrosamines, the nitrate content of drinking water must be strictly controlled. Nitrate and phosphate pollution can also cause eutrophication in still or slow-moving warm waters by stimulation of algae growth in the presence of... 

The temperature increase in the heat exchangers was usually 1-8°C. The decreased temperature difference in 2002-2004 was due to algae growth... 

OECD (1995) Alga, growth inhibition test OECD guidelines for the testing of chemicals,vol l,no 202,pp 1-14... 

OECD guideline for testing of chemicals alga, growth inhibition test, 1998. 

Thus any initial effect of reducing algae growth was lost with time. Daphnids reproduced (in both treatment and control tanks) quickly increasing their mass at least 10 times in 15 days and then maintained this density for up to 42 days. The second set of daphnids behaved similarily. 

AQUATIC EFFECT STUDIES Alga, Growth Inhibition Test Daphnia sp. Acute Immobilisation Test and Reproduction test Fish, AcuteToxIcIty Test PNEC ESTIMATION... 

Almost any chemical not arising from natural sources is a pollutant in water. Agricultural wastes from fertilizers and pesticides are the major pollution sources nationally. Fertilizers add nutrients that promote algae growth whose decay can cause the lake or river to become anaerobic through the overall reactions... 

Algae growth did not occur in the stills when sea water feed was used, but developed on several occasions when brackish well water was supplied to the deep-basin still. 

The fill tends to be of a horizontal or inclined bar type, typically made of either flat wooden lathes or upside-down Y-shaped, extruded, ultraviolet-lightproof polyvinylchloride (PVC), with cooling water splashing down onto the bar. The bar is easily cleaned, but it can also be susceptible to algae growth. 

Large open return-water distribution decks are susceptible to algae growth. (They should almost always be covered to eliminate sunlight.)... 

The tower s almost totally enclosed construction reduces the tendency to algae growth from exposure to sunlight. 

DEV L45 - DIN EN ISO 10253 (1998) Water quality - Marine algae growth inhibition test with Skeletonema costatum and Phaeodactylum tricornutum (ISO 10253 1995), Beuth Verlag, Berlin. 

Growth inhibition of marine algae Growth inhibition Influence on growth Germination and seedling growth... 

The presence of considerable amounts of P in wastewaters due to the run-off of fertilizers, and industrial and household discharges, is a major problem, because destructive blue algae blooms may develop in natural waters, where under normal conditions the Pi concentration is most often the limiting factor for algae growth (Godd and Bell, 1985). 

As discussed above, excessive algae growth (eutrophication) results when phosphates from detergents and nutrients enter surface waters. Upon... 

---