(855) 4-ESSAYS

Type a new keyword(s) and press Enter to search

The Parameters of Water Quality

            Two of the most essential parameters for determining water quality would have to be the measurements of dissolved oxygen, and biological oxygen demand. These two measurements are inner-related. Dissolved oxygen is the number of milligrams of oxygen gas dissolved in one liter of water. Biological oxygen demand is the amount of dissolved oxygen lost in a sample of water over a five day period due to organic matter. It is clearly evident that in order to find the biological oxygen demand of a water sample, an initial measurement of the dissolved oxygen would have to be taken. .
             There are mainly two ways to collect a measurement of dissolved oxygen. A complicated manual way, and by using probes. The manual way is done in seven procedural steps. Step one would be to carefully collect the water sample without splashing and keeping the bottle underwater. This is to prevent air bubbles mixing with the water. Next, add two milliliters of manganese chloride solution, and two milliliters of alkaline iodide solution. After these two solutions are added, add two milliliters of hydrochloric acid. What this did was leave a solution of iodine in an excess of potassium iodide. The dissolved oxygen is now fixed so exposing it to air will not affect the results. Next, take 50 milliliters of the solution and place it in a conical flask .01 m sodium thiosulphate solution should be added. While the sodium thiosulphate solution is being added the conical flask should be shaken until the color becomes pale. When the color is pale three drops of starch solution should be added until this solution clears. The amount of thiosulphate should be recorded. Using these solutions 1 milliliter of .01 M thiosulphate solution is equal to .056 milliliters of oxygen. The final step would be to calculate the concentration of oxygen per liter of water using the following formula: oxygen=(.056y1000)/50 y is the amount of thiosulphate used.


Essays Related to The Parameters of Water Quality

1. Team work and safety

The main benefits attributed to the ecological approach are the holistic approach it provides, the ability to determine long term impact of pollution (including temporal parameter) and its ability to track the effectiveness of remediation measures. ... Biological assessments provide integrated evaluations of water quality. ... Biological criteria, derived form data collected from bioassessments, provide an effective tool for addressing water quality problems by providing regulatory mechanisms to assess the biological resources at risk from chemical, physical or biological impacts. A prim...

  • Word Count: 1076
  • Approx Pages: 4
  • Grade Level: Graduate

2. Mineral Water Market in India

However, as of today, consumers mainly drink bottle water as an alternative to water only outside their homes. ... They perceive it to be healthier compared to tap water. ... The Indian government has separate standards for packaged drinking water and packaged natural mineral water. ... The major differences in standards are highlighted in Appendix (put chaitnya's appendix number related to standards for mineral and bottled waters)below: The standard specifications provided by the Indian government deals with the various parameters to be tested and requirements to be made regard...

  • Word Count: 1768
  • Approx Pages: 7
  • Grade Level: High School

3. concrete applications and testing

Concrete can be cast in place into basically any desired form, which often makes it an architect's first choice, or it can be used in form of precast shapes, mostly panels, and thus not only speed up the construction process, but also ensure high quality, since precast concrete is cast and cured under most favorable conditions. 2.0 CONCRETE AT HOWE HALL Even though most of it will be hidden by face brick, concrete was still the material of choice for the structure of Howe Hall. ... This can be achieved by spraying or flooding with water, by covering with moisture-retaining shee...

  • Word Count: 885
  • Approx Pages: 4

4. Claude Monet as a Modern Artist

Monet also rejected the dark tones and detailed finish that removed the painterly quality of the artist's work. These were qualities demanded by the Academy of Fine Arts, the institution that set the standards for French painting and organized the Salon (Gerstein). ... Typically, these institutions were structured within a very defined set of parameters. ... This series of water lily paintings supplied the motif for Monet's last works. ... Paintings of the pond and water lilies occupied him until the end of his life. ...

  • Word Count: 1342
  • Approx Pages: 5
  • Has Bibliography
  • Grade Level: High School

5. Coral Reefs And Remote Sensing

Because they depend on light, coral reefs require clear water for growth and can be severely damaged by sediment or other factors that reduce water clarity or quality. Other types of corals that do not require warm water or sunlight are found in deep water, providing important habitats for commercial, recreational and other species. ... Sponges like this orange elephant ear sponge are water filters for the reef. ... They have a central opening surrounded by tentacles which can be extended to feed on phytoplankton in the water column. ...

  • Word Count: 2218
  • Approx Pages: 9
  • Has Bibliography
  • Grade Level: Undergraduate

6. Military Troops

Most of the times they barely have time to take a bite out their meals since they"re either doing some type of security around their parameter of defense or they"re on the go and there's nothing you can do about that. Water is something that is really needed out there if you want to make it pass day one in that dry heat. ... It is common to see a soldier fall out of a walk, or hump, because they didn't drink enough water to stay hydrated for long periods of time. Sometimes there might a lack of water and that plays a major role for these soldiers. The military should take time fixi...

  • Word Count: 1278
  • Approx Pages: 5
  • Grade Level: High School

7. Suspiria - Movie Review

Pat's murder is the first in a series of strange, unexplained murders that take place within the parameters of the academy. ... In the fifth circle of hell, the souls of anger and wrath are plagued to fight each other while the remaining souls are lying underneath dirty water and gasping for air as water fills their lungs. ... A pit of barbed wire is not necessarily a river of filthy water, but it is comparable in the sense that the unfortunate ones who "swim " in these cannot escape. ... The lack of theme and a strong storyline somehow does not distract from the overall quality of the...

  • Word Count: 1494
  • Approx Pages: 6

8. Thin Layer Chromatography Lab

In the event that a legitimate decision of portable stage, stationary stage, dissolvable and other working parameters was made, the mixture will be divided in the segment and its different parts will rise at diverse times. ... The degree of division, measured by maintenance element esteem contrasts, will rely on upon their relative solubility and relative qualities of adsorption of the parts of the mixtures. 1. ... It is additionally used to focus the vicinity of cocaine in urine, liquor in blood, PCB's in fish, and lead in water. ...

  • Word Count: 1214
  • Approx Pages: 5

9. Jean Nouvel

Their constituent ideas respond to external parameters and thus refer at source to material, cultural, economic or social conditions chosen deliberately by the author to produce sufficient mutual tension. ... MATTER AND PERCEPTION Nouvel talks about a generic, material condition of the modern world that will never be transferred literally to the technical system of his buildings, but will rather find an indirect manifestation in the spatial and visual qualities. ...

  • Word Count: 2372
  • Approx Pages: 9
  • Grade Level: Undergraduate

Got a writing question? Ask our professional writer!
Submit My Question