Eutrophication, Science

Eutrophication:

Materials such as sewage or organic wastes from milk plants, canneries, slaughter houses, paper mills, starch factories and fish processing plants, and runoff from agricultural lands greatly increase the productivity of waters and cause algae to grow in abundance, so that sometimes water surface gets entirely covered by  algae. This is called 'algal bloom'.  In general, the entire water body becomes a green nourishing soup. Eventually, the death of this algae promotes the growth of a very large  'decomposer'  population.

The decomposers break down the dead algae using a lot of oxygen present  in  the water.  In addition, the living algae also consume oxygen from water at night for  their respiration. The decomposers, and the algae cause decreased amounts of oxygen available to fishes, ultimately causing them to die. The problem of eutrophication or excessive nourishment leading to loss of life in water bodies mainly occurs in ponds and lakes and not in flowing water. Now the question arises what is the solution to  this problem? One solution  is to process the sewage thoroughly, to remove nutrients to prevent 'algal bloom'.  Since such a treatment is expensive, further  ways are being explored. One suggestion is to use this water to  irrigate crops and/ or to grow algae and aquatic plants  in a man made shallow pond which can be used for making biogas.  

Posted Date: 9/28/2012 6:09:20 AM | Location : United States







Related Discussions:- Eutrophication, Assignment Help, Ask Question on Eutrophication, Get Answer, Expert's Help, Eutrophication Discussions

Write discussion on Eutrophication
Your posts are moderated
Related Questions

Functions of communication: Broldly the main role of communication in a social system is  : Receiving and conveying.information which may be facts, messages  or opnions;  this

Give reason for the benifits of our technological development not reaching all the strata of our society.

What is Transamination Reaction ? Most common amino acids can be converted into the corresponding keto acid by 'transamination. In this reaction, there is a transfer of a-amin

explain the encryption model

conductometry and its biological uses

What is the name for the margin where two plates in the lithosphere slide past each other? Transform Fault Margins

Which type of volcano is the most destructive? Well every type of volcano can be destructive and if you are talking in human loss of life terms than the answer is any type of v

Define Caecum - Part of Large Intestine This is the first part of the colon. Ileocolic valve opens from the ileum on the medial aspect of the caecum. The vermiform appendix is

Why is the idea of modern human "races" is not considered a valid biological concept, and why is the idea of clinal variation more acceptable to biologists?