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

I DONT KNOW, #question.I AM TRAYING TO DO A SCIENCE PROJECT FOR 7TH GRADE B...

#question.I AM TRAYING TO DO A SCIENCE PROJECT FOR 7TH GRADE BUT I DONT KNOW WHAT SHOULD I DO ?

To surveys a lab for its fire preparedness, TO SURVEYS A LAB FOR ITS FIRE P...

TO SURVEYS A LAB FOR ITS FIRE PREPAREDNESS As said earlier in this activity you are going to survey the labs of the institution where you are working at. Look for the fire safe

Fossils, describe the typical conditions necessary for fossil formation?

describe the typical conditions necessary for fossil formation?

Erosion of a granite, a.  Which type of ripple marks would you expect to se...

a.  Which type of ripple marks would you expect to see on the bed of a river? Why? b.  Which type would you expect to find on the floor of a standing body of water? Why? c.

Earth''s surface is most direct at which latitude, The angle of insolation ...

The angle of insolation on the Earth's surface is most direct at which latitude: At  0 o latitude

How did psychology emerge as a separate scientific field, QUESTION 1 (a...

QUESTION 1 (a) How did psychology emerge as a separate scientific field? (b) Elaborate on any two schools of Psychology QUESTION 2 Elaborate on the correlational met

Enzymes of intestinal juice, Enzymes of intestinal  juice Aminopepetid...

Enzymes of intestinal  juice Aminopepetidase is an  exopeptidase and cleaves peptide bonds next  to N-terminal amino acids of polypeptides and oligopeptides (unlike carboxypept

FST-01, #question: Describe the factors which decide the broad area of Scie...

#question: Describe the factors which decide the broad area of Scientific activity ?

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