Social Ecology of Health Promotion Term Paper

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Social Ecology of Health Promotion

Preservation of the existing ecosystems

Accumulating evidence suggest that sustainable agriculture should be promoted. The growth and development of agriculture will still be the driving force of the loss of ecosystems in the 21st century. In specified areas, the growth and development of agriculture poses a danger to ecosystems, establishment, evaluation, and technological diffusion. This could see the rise of the food production sustainably per unit area with the absence of trade-offs relating to excessive water consumption or nutrients and pesticides use, would lessen pressure significantly to ecosystems. For many cases, the required technologies are in place, and they could be implemented in a wider variety, but the nation is facing financial constraints and lacking intuitional capabilities to use and gain the stated technologies. In areas where technology is predominant of the landscape, maintenance of ecosystems within the landscape is a very significant constitute of the total efforts of conservation of the ecosystem, and in case they are well and properly managed, can also play a role in productivity of agriculture and ecosystem services sustainability which is provided for by biodiversity. For example, through control of pest, removing the excess nutrients, preventing the watercourses from soil erosion, soil fertility, and pollination (Scutchfield & Keck, 2009).

Benefits and limitations of the support for primary, secondary, and tertiary sewage treatments in your community

Treatment of primary water waste is a reference for the process of sedimentation and physical treatment instituted for removal of suspended solids settled from the wastewater.

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A sedimentation basin typically circular has a cross-section that is the left, displays the overall solids and liquids flow pattern. The influent flows of water waste at the core of the sedimentation basin (clarifier). As the flow is directed from the clarifier circumference to the weir effluent, the solids are resolved out towards the outlet solids and are scraped. At the right side, a primary sedimentation basin in the circular sedimentation basin of the plant of water waste treatment exists (Hayden 2009).

The secondary process of water treatment is the removal of organic (biological, once living) waste material from wastewater, using a typical process of biological treatment. This method of treatment for of biological wastewater is popular and commonly used. Methods under this category include system stabilization and pond treatment, trickling filter, and activated sludge. Each of the above methods, work by combining water waste organic matter, dissolved oxygen and aerobic microorganisms. Biological water waste organic oxidation takes a position in the system of wastewater treatment naturally instead of in the river, stream of the lake, the way it would have in case the waste organic matter was to be dumped there. The biological process of treatment for the trickling filter that uses a base of rocks to allow for contact of the oxygen, aerobic bacteria and water waste organic matter (Stephens 2008).

Advanced treatment of water waste is instituted in a scenario where defined components of soft wastewater is removed using the secondary treatment process. Individual processes of treatment.....

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