Dissolved oxygen is believed to be the volume of oxygen in water. Dissolved Oxygen is believed to be part of the microscopic bubbles of oxygen which are normally mingled water and then appears to occur among water molecules. This component is a vital index of the water body's power to back aquatic life. Aquatic animals and other species like fish "breathe" by absorbing the available dissolved oxygen by means of their gills.
The gaseous oxygen comes in the water by absorption straight from the air or by aquatic plant and algae photosynthesis. The dissolved oxygen is believed to be coming for two major sources namely photosynthesis and diffusion of the gases. These two processes normally helps in ensuring the level of dissolved oxygen in water.
The method through the gaseous oxygen is got rid of from the water is by respiration process and biodegradation of the organic matter. The gas is very vital for both animals and plants in that it facilitates the formation of food in plants and in animals; they help in the exchange of substances within the body of the given organisms. It is therefore recommended to check on the way of making some control mechanism for the gas which will ensure that there is no depletion of the gas in the atmosphere.
The concentration of the dissolved oxygen is usually monitored by the argument in wastewater treatment plants. The process can be either is manually monitored by a plant operator or at some points automatically controlled by a machine like the computer. The regulation of the airflow rate is normally regulating the airflow rate controls the oxygen concentration. This makes the dissolved oxygen level to be increased at some level.
Fermentation is the biological process in which sugar molecules are converted into acids and it normally occurs in yeasts and bacteria and some oxygen starved muscle cells. The process normally takes place in the absence of oxygen gas usually when the electron translocation chain is not in use. At some points, it is used by the cells to generate some energy directly for the body cells. At some points, it is referred to as the bulk of growth of the microorganism mostly on a growth medium. The process is widely used by the Pharmaceutical and Food processing industries to come up with some valuable products for use by consumers.
The process requires the cultivation in the submerged habit of an identified micro-organism as a monoculture under some determined environmental conditions. The brooding regime imposed is planned to make good use of the productiveness of the given organism for the purpose of providing interest by allowing for optimal conditions for the population growth of a given nation. A good environmental condition within the water environ for the aquatic life will foster their chances of living and in turn reproduce to forth to young ones which will foresee the continuation of the given species generation.
Dissolved oxygen finding evaluates the amount of dissolved oxygen which is believed to be free and is adequately present in water or wastewater. Some of the aerobic bacteria and aquatic organism such as fish must have in their body structure the dissolved oxygen to live. The treatment of the Aerobic wastewater processes uses aerobic mechanisms and facultative bacteria to disintegrate the organic compounds detected in wastewater into relatively stable products that will not damage the receiving waters.
The treatment of the wastewater facilities which includes lagoons or ponds, dribbling filters and excited sludge plants count on these aerobic bacteria to handle sewage. This may help in eradicating some infectious diseases that may lead to the death of the aquatic living organisms. They rely heavily on the dissolved oxygen for their survival. Without sufficient dissolved oxygen in water, the aquatic animals will definitely suffocate the aquatic life. They require oxygen for their biological processes in the body and this can only be effective in the presence of dissolved oxygen.
During the control of the biotechnological procedures may include aerobics microorganisms, normally, the usual practice is based on the adequate oxygen supply with excess of the concentration in reference to the nominal concentration. From the basic definition, aerobic condition is a situation in which the dissolved oxygen is present in water which aides in the biological processes of aquatic life. This process leads to the formation of food products by the plants which in turn are used by the animals for other biological processes like respiration which is majorly is the release of energy by the animals.
One of the major factors that do affect the level of the dissolved oxygen concentration in water like the case of the abiotic factors. These are like the case of water temperature, the amount of the salinity and also the atmospheric pressure that surrounds the water body. High level of atmospheric pressure results in the increased level of molecular vibrations and this leads to reduced amount of space available between the water molecules.
The increased in salinity level leads to decreased level of dissolved oxygen to be hold by water. Most of these factors do have direct effect and contribute a lot in the determination of the dissolved oxygen concentration. Like the case of the water temperature, increased in the water temperature leads to increase in vibrations of the molecules that make up the water components.
Other essential factors that can affect the level of the dissolved oxygen level in water are the biotic factors. The biological processes like photosynthesis lead to increased level of dissolved oxygen in water. If sufficient raw materials necessary for the photosynthesis are availed, there would be increased level of oxygen in water since the aquatic plants and animals will be able to photosynthesize and adequate amount of oxygen will be availed.
Another vital and at some points considered indirect origin of Biochemical oxygen demands to a water body is the nutrient run-off from its environ land and drainage systems of the surrounding. This factor affects the level of dissolved oxygen directly in water in that it increased in the salinity level in water leads to decrease in the level of dissolved oxygen in water and this may lead to some dire consequences to the aquatic life which relies heavily on the dissolved oxygen for the survival.
In conclusion, the project is very vital in that it enables one to get more information with reference to the dissolved oxygen level in water. This project helps one to get more insight with regard to the amount of dissolved oxygen in water and its importance to the aquatic life. Dissolved oxygen is vital for many purposes like the case of the biomedical processes. This helps the aquatic organisms to acquire life and carry on with their biological processes.
Reference
Metcalf & Eddy, I., G. Tchobanoglous, et al. (2003). Wastewater Engineering: Treatment and Reuse. New York, McGraw Hill.
R. Mikler, W. Kramer, O. Doblhoff - Dier, K. Bayer (04/07/95) Strategies For Optimal Dissolved Oxygen (Do) Control http://www.boku.ac.at/iam/poster/doxygen.htm
Seborg, Dale E. Process Dynamics and Control. Hoboken, N.J: John Wiley & Sons, 2011. Print.
Weber, Thomas W. An Introduction to Process Dynamics and Control. Malabar, Fla: R.E. Krieger Pub. Co, 1988. Print.
Roffel, Brian, and Ben Betlem. Process Dynamics and Control: Modeling for Control and Prediction. Chichester: John Wiley & Sons, 2007. Internet resource.
