Great Expertise Shown By Designers for Waste Water Treatment Plants
Posted: Sep 29, 2013
Waste water treatment plants are very necessary nowadays as the world is facing acute scarcity of drinking water. The main causes for this is actually massive increment in the population which is actually a curse for the under developed countries. Rapid unplanned techniques have been adopted in every way to increase the industrialization progress as well which also consumes great amount of fresh water and dispose them into the drainage systems which actually shed off their load in canals, lakes, oceans or rivers. Thus polluting the water to a great extent and making it completely unfit for normal use. Designers for waste water plants created them for this purpose to recycle the contamination from water into such a state in which it is completely safe for consumption.
This type of treatment plants are created in such a place which is in a close proximity to the site where waste water is produced such as just beside or in the middle of an industrial area. Waste water treatment plant designers plan this type of sites which are close to the area where toxic water from a particular city is deposited such as the opening of sewage canals or large drains carrying large amount of wastes. Designers often plan in such a way that water is treated fully within a minimum amount space as these plants are created in densely populated areas where getting vast amount of land masses in just next to impossible. Nowadays miniature water treatment plants are also created to provide with the safe drinking water to small areas.
There is a series of process which is actually undertaken for water purification by the designers for waste water plants while designing them. This can be classified into three processes which are as follows:
- Primary treatment: This is a procedure where the flowing sewage water is hold on to a quiescent basin in such a manner that the heavy solid particles can settle at the bottom and the lighter solids along with the oil, grease etc. can float to the surface. This process is also known as submerged process. The basins or the tanks are especially equipped with scrappers which are mechanically driven. The scrappers drive the sludge present in the water towards a hopper at the bottom of the tank. This sludge thus collected then pumped into the sludge treatment facilities. Very often the oil, grease and other submerged particles are separated using a process called saponification.
- Secondary treatment: The biological contamination of the sewage such as the human waste, food waste, soap and detergent is treated in this stage. The microscopic organisms are used to treat the biological contamination. Waste water treatment plant designers divide this stage into two parts which are as follows. Fixed-film or attached growth system where the biomass is grown and the sewage water is flown over it. The other known as Suspended-growth systems where the biomass is mixed with the sewage. However more contamination is removed in the first process.
- Tertiary treatment: In this process the chemically toxic products are removed before being dispatched into a very sensitive ecosystem such as the rivers, estuaries, oceans etc. and sometimes this is more important than primary and secondary systems.
The author of this article has worked for several years and has leaded a team of sewage treatment. His team of tailor designed waste water plants have done a tremendous job for maintaining the ecosystem balance.
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