stages of solid waste management

7/24/2019 Stages of Solid Waste Management

1/10

Presented By:R.Suchitra0702294thSemester

PresentedTo:Mr.Prasad

RaoFaculty,RP


2/10

Solid waste is defined as refuse from domestic, industrial, commercial or

institutional sources, produced as a result of human activity.

!t e"cludes #astes that are ha$ardous, radioacti%e or li&uid.

Solid #aste mana'ement is concerned #ith the creation,

a%oidance, reduction, collection, trans(ort, (rocessin', and)or

dis(osal o* #aste materials.

Pro(erly done, it #ill ensure that:

+. there are minimal ne'ati%e eects on human health-

2. that any eect on the en%ironment is mana'eale

/. that natural resources are maintained-


3/10

Government authorities charged with

following and guiding the environmental

hearing process.

This has led to e"tra costs *or

a((licants, and suse&uent

delays in decisions y the

hearin' (anel.

The reasons *or this constraint

can include the desire o* elected

ocials to a%oid the #rath o*

an'ry %oters on contentious solid

#aste mana'ement issues


4/10

1o%ernment can assist this

(rocess y (ro%idin' 'reater

certainty in the

en%ironmental assessment

and a((ro%al (rocess

dictatin' the a((roach to

identication, screenin' and

selection, construction, and

o(eration o* a ran'e o*

reasonale alternati%es.


5/10

The ability of engineers, decision makers and the public to resolve solid waste

management issues would benefit from a more definitive.

Engineers who have spent many years working on projects such as these believe

that the following hierarchy for the management of solid waste should be used.

The residual waste still remaining, following each stage, would be considered for

treatment in the next or succeeding stage.


6/10


7/10

. !revent waste generation where possible.

". #euse waste for other purposes.

$. #ecycle waste through the creation of other useful products.

%. &ompost the organic fraction of the waste stream and use the resulting compostingmaterial.

'. (n aerobically bio)degrade the organic fraction of the waste stream to recover

methane for energy and use the resulting biodegraded material.

*. +ncinerate, change the form, and reduce the volume of the combustible fraction of

the waste stream, and recover the energy, while safely disposing or using the

products of combustion.


8/10

*. +ncinerate, change the form, and reduce the volume of the combustible fraction of

the waste stream, and recover the energy, while safely disposing or using the

products of combustion.

7. 3andll #aste in a sa*e location, usin' methane and other 'asesas a source o* ener'y.

!n order to determine the most a((ro(riate solution, en'ineers

*ollo# a (rocess that e'ins #ith denin' the solid #aste

mana'ement challen'e to e resol%ed, !n most cases, the (roduct *rom a com(ostin' system can sa*ely

e used in the a'ricultural industry.


9/10

andfills have systems in place to deal with any contaminant that prevents the use

of the product in agriculture.

-ethane that is released into the atmosphere can cause up to " times the damage

to the stratosphere as the same amount of carbon dioxide. Therefore, it is very important that methane emanating from a sanitary landfill be

captured and burned off / either in a system using the gas0s energy, or simply

flared off.

The production of glass from raw materials re1uires a great deal of energy.


10/10

stages of solid waste management

Documents