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

Zoology, how to prevent skin problems?

how to prevent skin problems?

Describe snop coding system, Question 1 Explain the purpose and uses of...

Question 1 Explain the purpose and uses of nomenclature and classification of diseases 2 With a help of an example explain the steps in coding 3 Discuss the medical recor

Kinetic energy, How is energy from food and energy from gasoline different?...

How is energy from food and energy from gasoline different?

How do microbes enter our body?, How do Microbes Enter Our Body? You ha...

How do Microbes Enter Our Body? You have learnt that microbes exist virtually everywhere,  and hence our body is constantly exposed to them. They gain access  to our body throu

Heaping water up in a glass, Heaping water up in a glass Place a drinki...

Heaping water up in a glass Place a drinking glass in a shallow pan or on a saucer. Rub the top edge of the glass with a dry cloth. Pour water into the glass unless it is full

Functions of communication, Functions of communication: Broldly the mai...

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

#titlko, Ask question #Minimum 100 words accept231

Ask question #Minimum 100 words accept231

Boobs, why are boobs fluffy

why are boobs fluffy

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