'Natural waters' diaporamas de présentation

ENVIRONMENTAL POLLUTION

1.31k views • 52 slides

Natural Water Chemistry

Natural Water Chemistry. Water Quality Parameters. Temperature - Dissolved Oxygen (DO) - pH Alkalinity - Hardness Nitrates and Phosphates - Turbidity Conductivity -. Temperature. Affects: Water density Gas solubility Chemical reaction rates Organism growth rates

528 views • 42 slides

Benzene and Its Derivatives Chapter 4

Benzene and Its Derivatives Chapter 4. AROMATIC HYDROCARBONS. -very "aromatic," hence the name. -benzene the most common. Toxic, industrially important. -hybrid ring structure, since 3 double bonds not always in the same location. so, C-6 H-6 formula.

705 views • 30 slides

Redox Geochemistry

Redox Geochemistry. WHY?. Redox gradients drive life processes! The transfer of electrons between oxidants and reactants is harnessed as the battery, the source of metabolic energy for organisms

514 views • 27 slides

Acid Pollution of Natural Waters

Acid Pollution of Natural Waters. Outline of Topics. Background Acids and bases pH ranges in the hydrosphere Biological effects of acid pollution Sources of Acid Pollution Acid deposition Acid mine drainage Resisting Acidification pH buffers Dissolved inorganic carbon in natural waters

479 views • 23 slides

The Determination of 224 Ra, 226 Ra, & 228 Ra in Water Samples

The Determination of 224 Ra, 226 Ra, & 228 Ra in Water Samples. Michael Fern Eichrom Technologies, Inc. Background. EPA monitoring of radium in water in US Ra-224 found in drinking water in New Jersey Need for faster method to measure Ra-224 ASTM + US Geological Survey.

406 views • 22 slides

Water Pollution-Plant Nutrients

Water Pollution-Plant Nutrients. Plant nutrients. Plant growth requires various nutrients. Major nutrient elements: C, N, P. trace elements: S, Si, Cl, I, and metallic elements (Fe, Mn, Cu, etc).

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Tidal Energy

583 views • 14 slides

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Properties of Light in Water

Properties of Light in Water. Refraction Attenuation with depth Light and Trophic Status Secchi Disk Application. Light Penetration & Attenuation. (I o ). Euphotic zone. Note refraction. 1% I o. Amount reflected depends on wave conditions and ice cover.

475 views • 6 slides

What Is DDT?

What Is DDT?. DDT the first of the chlorinated organic insecticides, was originally prepared in 1873

428 views • 4 slides