University of Agronomical Sciences and Veterinary Medicine – Bucharest
Faculty of Management, Economical Engineering in Agriculture and Rural
Development Management and Rural Development
Student: Danciulescu Marius
Professor:Mihai Frumuselu
January, 2015Bucharest
Environment protection
Environment protection - definition
Greenhouse effect
Acid rain
Wildlife extinction
Selective collection and recycling
Deforestation
Pollution
Ecology
Bibliography
Contents
Selective collection and recycling
Selective collection - is one of the recycling stages, together with the separation and with the processing of some waste compounds, in order to transform them into useful products.
Recycling - is the process that reuses old products and materials in order to produce and create new ones, without resorting to new raw materials.
Thus reducing both the energy consumption necessary to extract the raw materials and to destroy the waste, and also the excessive use of natural resources.
Environmental pollution is defined as the undesirable change in physical, chemical and biological characteristics of our air, land and water.
Pollutants are generally grouped under two classes:
(a) Biodegradable pollutants - Biodegradable pollutants are broken down by the activity of micro-organisms and enter into the biogeochemical cycles. Examples of such pollutants are domestic waste products, urine and faucal matter, sewage, agricultural residue, paper, wood and cloth etc.
(b) Non- Biodegradable pollutants - Non-biodegradable pollutants are stronger chemical bondage, do not break down into simpler and harmless products. These include various insecticides and other pesticides, mercury, lead, arsenic, aluminum, plastics, radioactive waste etc.
Pollution
http://en.wikipedia.org/wiki/Environmental_protection http://www.epa.gov/climatestudents/basics/today/greenhouse-effect.html http://www.recolamp.ro/en/colectare-si-reciclare
Bibliography