Solid waste, Science

Assignment Help:

Solid waste

Solid waste in some cases can be a resource. A good example is the factory at Yokohama in Japan which is engaged in converting waste paper into toilet paper. In our country, the mainstreet of Patna city is being illuminated by biogas produced from nightsoil of  the city dwellers. In Delhi, the sewage treatment plant produces cooking gas. Fermentation of wastessuch as cattle dung, human excreta, garbage and aquatic weeds like algae and water hyacinth, produces biogas which can be used for a variety of purposes. Fermentation takes place at temperatures between 28° and 40°C and gases produced are predominantly methaneand carbon dioxide with a small quantity of hydrogen sulphide and nitrogen. Slag, a waste product left when the metal has been extracted from  its ore, can be powdered and added to cement for construction. Flyash  is another material used as a valuable cementing material. It is clear from the above that the solid wastes can serve as very useful resource for providing  raw material for our industries, for generating energy and for the production of manure. 


Related Discussions:- Solid waste

Rh blood group, what is diffrence between rh positive and rh negative

what is diffrence between rh positive and rh negative

How temperature of the earths layers is changed, How Temperature of the Ear...

How Temperature of the Earth's Layers is changed? How does the temperature of the Earth's interior change as one goes deeper within the Earth? As one might expect, the farther

Explain asphyxia - histotoxic hypoxia, Explain Asphyxia - Histotoxic Hypoxi...

Explain Asphyxia - Histotoxic Hypoxia Improper aeration of blood produces a series of pathological manifestation and ultimately death. The symptoms are collectively called asph

Slogans on good eating habits for proper digestion, show me the slogans on...

show me the slogans on good eating habits for proper digestion

AQA Additional Science, Whats an easy way to work out force, mass and accel...

Whats an easy way to work out force, mass and acceleration

Explain the mucous membrane, Explain the Mucous Membrane This layer is ...

Explain the Mucous Membrane This layer is lined by the epithelial cells. Parts of the tract which are subject to mechanical injury, the layer consists of stratified squamous ep

Explain the process of respiration, Explain the Process of Respiration ...

Explain the Process of Respiration Respiration is the process which deals with the act of respiring or breathing, the act of taking in and giving out air, the aggregate of thos

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd