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 hypercapnia and hypocapnia - histotoxic hypoxia, Explain Hypercapni...

Explain Hypercapnia and Hypocapnia - Histotoxic Hypoxia Hypercapnia: It is the retention of carbon dioxide in the body. There is a depression of the central nervous system.

Explain the adrenal medulla, Explain the Adrenal Medulla The adrenal me...

Explain the Adrenal Medulla The adrenal medulla secretes epinephrine or adrenaline and norepinephrine or noradrenaline. The secretory cells of the medulla are modified postgang

Explain age related changes - ageing, Explain Age Related Changes - Ageing ...

Explain Age Related Changes - Ageing Age related changes are mainly observed at a cellular level. The connective tissues throughout body show an increase in stiffness because o

Procedures for treatment of chemical burns, Procedures for Treatment of Che...

Procedures for Treatment of Chemical Burns : Accidental splashing of chemicals onto the skin can produce burns as a result of the corrosive nature of the substance involved. It ca

Define the complement system, Define the Complement system The compleme...

Define the Complement system The complement system is a series ofproteins. There are only a handful of proteins in the complement system and they are floating freely in our blo

Pollution, Pollution Now-a-days, you might have heard every one talking...

Pollution Now-a-days, you might have heard every one talking about pollution. What does pollution mean? Pollution is the addition to the environment (air, water, soil) of subst

Laboratory method of soil textural classes, Laboratory Method of Soil textu...

Laboratory Method of Soil textural classes The mechanical analysis methods have been used by USDA to develop a method for naming the textural class. This is depicted by a trian

Natural resources, what are different kinds of natural resource

what are different kinds of natural resource

Calculate the specimen of carbon 14, Carbon l4 with a half-life of 5,568 ye...

Carbon l4 with a half-life of 5,568 years is used to date a sample of wood. Sample has l/8 the carbon l4 contained in a living tree of same species. Approximately how old is specim

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