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  2. Contaminants of emerging concern - Wikipedia

    en.wikipedia.org/wiki/Contaminants_of_emerging...

    Found to accumulate in water treatment plant (WTP) effluents BPA is cytotoxic and mutagenic. It exerts various adverse effects on reproductive, immune, endocrine and nervous systems Sulfamethoxazole (SMX) Antibiotics Reported to be found in various freshwater systems Common side effects include nausea, vomiting, loss of appetite, and skin rashes.

  3. Amyl nitrite - Wikipedia

    en.wikipedia.org/wiki/Amyl_nitrite

    The term "amyl nitrite" encompasses several isomers.In older literature, the common non-systematic name amyl was often used for the pentyl group, where the amyl group is a linear or normal (n) alkyl group, and the resulting amyl nitrite would have the structural formula CH 3 (CH 2) 3 CH 2 ONO, also referred to as n-amyl nitrite.

  4. Urban Waste Water Treatment Directive - Wikipedia

    en.wikipedia.org/wiki/Urban_Waste_Water...

    The directive defines sensitive areas, as "freshwater bodies, estuaries and coastal waters which are eutrophic or which may become eutrophic if protective action is not taken", "surface freshwaters intended for the abstraction of drinking water which contain or are likely to contain more than 50 mg/L of nitrates", areas where further treatment is necessary to comply with other directives, such ...

  5. SHARON Wastewater Treatment - Wikipedia

    en.wikipedia.org/wiki/SHARON_Wastewater_Treatment

    SHARON (Single reactor system for High activity Ammonium Removal Over Nitrite) is a sewage treatment process. A partial nitrification process of sewage treatment used for the removal of ammonia and organic nitrogen components from wastewater flow streams. The process results in stable nitrite formation, rather than complete oxidation to nitrate.

  6. Nutrient pollution - Wikipedia

    en.wikipedia.org/wiki/Nutrient_pollution

    Nutrient pollution, a form of water pollution, refers to contamination by excessive inputs of nutrients.It is a primary cause of eutrophication of surface waters (lakes, rivers and coastal waters), in which excess nutrients, usually nitrogen or phosphorus, stimulate algal growth. [1]

  7. Sodium nitrite - Wikipedia

    en.wikipedia.org/wiki/Sodium_nitrite

    Sodium nitrite is an inorganic compound with the chemical formula Na N O 2. It is a white to slightly yellowish crystalline powder that is very soluble in water and is hygroscopic. From an industrial perspective, it is the most important nitrite salt.

  8. Wastewater quality indicators - Wikipedia

    en.wikipedia.org/wiki/Wastewater_quality_indicators

    Settleable solids are measured as the visible volume accumulated at the bottom of an Imhoff cone after water has settled for one hour. [2]: 89–98 Turbidity is a measure of the light scattering ability of suspended matter in the water. [2]: 131–137 Salinity measures water density or conductivity changes caused by dissolved materials.

  9. Nitrovasodilator - Wikipedia

    en.wikipedia.org/wiki/Nitrovasodilator

    Most side effects are direct consequences of the vasodilation and the resultant low blood pressure. They include headache ("nitrate headache") resulting from the widening of blood vessels in the brain, reflex tachycardia (fast heart rate), flush, dizziness, nausea and vomiting. These effects usually subside after a few days if the treatment is ...