Saturday, April 23, 2011

About waste management




Waste management is the collection, transport,processing, recycling or disposal, and monitoring of waste materials. The term usually relates to materials produced by human activity, and is generally undertaken to reduce their effect on health, the environment or aesthetics. Waste management is also carried out to recove resources from it. Waste management can involve solid, liquid, gaseous or radioactive substances, with different methods and fields of expertise for each. Waste management practices differ for developed and developing nations, for urban and rural areas and for residential and industrial producers. Management for non-hazardous waste residential and institutional waste in metropolitan areas is usually the responsibility of local government authorities, while management for non-hazardous commercial and industrial waste is usually the responsibility of the generator.




                        So come on let's Recycle
                            waste


                                     

Tuesday, December 7, 2010

what are decomposers?

Living things that help to decompose or break down wastes are called decompose. examples are bacteria, earthworm etc.decomposer A term that is generally synonymous with ‘microconsumer’. In an ecosystem,
decomposer organisms (mainly bacteria and fungi) enable nutrient recycling by breaking
down the complex organic molecules of dead protoplasm and cell walls into simpler organic
and (more importantly) inorganic molecules which may be used again by primary producers.
Recent work suggests that some macroconsumers may also play a role in decomposition (for
example, detritivores, in breaking down litter, speed its bacterial breakdown).
In this sense ‘decomposer’ has a wider meaning than that traditionally implied. See also consumer organism.

Monday, December 6, 2010

waste management


Waste management is the collection, transport, processing, recycling or disposal, and monitoring of waste materials. The term usually relates to materials produced by human activity, and is generally undertaken to reduce their effect on health, the environment or aesthetics. Waste management is also carried out to recover resources from it. Waste management can involve solid, liquid, gaseous or radioactive substances, with different methods and fields of expertise for each.

Waste management practices differ for developed and developing nations, for urban and rural areas, and for residential and industrial producers. Management for non-hazardous residential and institutional waste in metropolitan areas is usually the responsibility of local governmentauthorities, while management for non-hazardous commercial and industrial waste is usually the responsibility of the generator.

Thursday, November 25, 2010

Non-biodegradable waste

a}.Non-biodegradable - waste comprises of man-made material such as plastic,metal and glass.It also includes toxic waste such as acids,expired medicines and wastes from big industries .These cause a lot harm to our environment and will NOT break down (or won't for many many years).

b}. biodegradebal waste - Biodegradable waste is a type of waste, typically originating from plant or animal sources, which may be degraded by other living organisms. Waste that cannot be broken down by other living organisms are called non-biodegradable.

Biodegradable waste can be commonly found in municipal solid waste (sometimes called biodegradable municipal waste, or BMW) as green waste, food waste, paper waste, and biodegradable plastics. Other biodegradable wastes include human waste, manure, sewage, slaughterhouse waste. In the absence of oxygen much of this waste will decay to methane by anaerobic digestion.

Wednesday, November 24, 2010

Recycling of Waste Products

Biodegradable Waste is type of waste that gets broken down by natural processes to become a part of the earth and soil. Food particles and paper are examples of biodegradable waste.