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

Explain enzyme immobilization, Enzyme immobilizatio:- The attachment of...

Enzyme immobilizatio:- The attachment of an enzyme to a solid matrix so  that it cannot escape but can still act on its substrate.  .

Discuss about the soil fauna, Discuss about the Soil Fauna The soil fa...

Discuss about the Soil Fauna The soil fauna inhabiting the soil are active partners of the soil flora in the decomposition of plant tissues.  When dead leaves fall on moist so

Procedure of proper fuse rating and plug type, Procedure: Take any applian...

Procedure: Take any appliance1 equipment in the laboratory e-g., the oven, electric heater, sodium lamp, immersion rod, the vacuum pump, autoclave, heating mantle, refrigerator, i

Fire hazards in the laboratory, FIRE HAZARDS IN THE LABORATORY : The ave...

FIRE HAZARDS IN THE LABORATORY : The average science laboratory is a particularly hazardous area when it comes to fire. Flammable liquids, compressed and liquefied gases, hazard

Animals, what are the kinds of animals?

what are the kinds of animals?

Cholestrol, short notes of cholestrol

short notes of cholestrol

Fossil, Describe the typical conditions neccessary for fossil formation

Describe the typical conditions neccessary for fossil formation

Characteristic of Light, Does the frequencies of the colors of the light in...

Does the frequencies of the colors of the light increase from red to violet?

Nested and split-plot designs, 1. How much variation is there in the routin...

1. How much variation is there in the routine analysis of fibre content of soya cotton cakes? The data are presented by the lab that did the test and the technician within the lab

Excretory function of bile, Excretory Function of Bile Excretory functi...

Excretory Function of Bile Excretory function: Bile pigments (bilirubin and biliverdin) are the waste products of the breakdown of red blood cells and bile is their route of ex

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