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

Soil science.., how is the soil colloidal material look like when ion and c...

how is the soil colloidal material look like when ion and cation exchange capacity of the soil?

Explain the lubrication of food, Explain the Lubrication of food Dry fo...

Explain the Lubrication of food Dry food enters the mouth. It is moistened and lubricated by the saliva, before it can be made into a bolus ready for swallowing.

Explain the renal failure, Explain the Renal Failure It is the inabilit...

Explain the Renal Failure It is the inability of the kidneys to manufacture and excrete urine causing the waste products to accumulate in the blood plasma. If the kidneys do no

Define general hormones, Define General Hormones General hormones, on t...

Define General Hormones General hormones, on the other hand, are emptied into the blood by specific endocrine glands and then flow throughout the entire circulation to affect c

State the types of soil, Soil Types of India Soils were classified as ...

Soil Types of India Soils were classified as urvara (fertile) and anuvara or usara (barren) in the ancient period. The soils were then given local names by cultivators like, M

Describe the hydrologic cycle, Question 1: a) Briefly explain the follo...

Question 1: a) Briefly explain the following terms: i) evaporation ii) condensation iii) transpiration b) Describe the hydrologic cycle. Question 2: a) Define an

Torque and equilibrium, equilibrium, Physics what is the effect of torque a...

equilibrium, Physics what is the effect of torque and equilibrium on taps, doors,handle bars and bicycles??

Explain the term - ants, Explain the term - Ants  Ants are the most wid...

Explain the term - Ants  Ants are the most widespread species of insects in soil and consume plant residues, but are more active in humifying insects than plants.

Did dinosaurs first appear, When, in the geological time scale, did dinosau...

When, in the geological time scale, did dinosaurs first appear:    Triassic

Solid object.., what are the different kinds of solid object?

what are the different kinds of solid object?

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