�ݺ�ߣ

1. Introduction
2. Classification of solid waste
i. Based on their sources of origin
ii. Based on physical nature
3. Engineered systems for solid waste management
4. Methods for solid waste management
i. Open Dumps
ii. Landfills
iii. Anaerobic Digestion
iv. Composting
v. Vermicomposting
vi. Incineration
vii. Encapsulation
5. Management of solid waste.
Contents
2

3
Following process applied in hazardous
waste treatment:
 Physical separation
 Gravity separation
 Dissolved air floatation
 Solvent extraction
 Sorption on activated carbon
iii. Management of Hazardous waste:
[Ref: Indu Shekhar Thakur- Environmental Biotechnology]
Hazardous waste
Treatment options:
 Thermal treatment
 Incineration
 Biological treatment

4
•Non-hazardous solid waste is total waste including municipal waste,
industrial waste, agricultural waste and sewage sludge.
•Following methods are followed by management of non-hazardous and
biodegradable solid wastes:
 Open Dumps
 Landfills
 Anaerobic Digestion
 Composting
 Vermicomposting
iv. Management of non-hazardous & biodegradable
solid waste:
[Ref: Indu Shekhar Thakur- Environmental Biotechnology,
T. Srinivas, Environmental Biotechnology]

5
• Electronic waste is of concern largely due to the toxicity and
carcinogenicity of some of the substances if processed improperly. Toxic
substances in electronic waste include lead, mercury and cadmium.
Carcinogenic substances in electronic waste may include polychlorinated
biphenyls (PCBs).
• A typical computer may contain more than 6% lead by weight.
Capacitors, transformers, PVC insulated wires of polychlorinated
biphenyls.
vi. Management of Electronic waste, “E-Waste”:
[Ref: Indu Shekhar Thakur- Environmental Biotechnology]

6
Source of e-wastes Constituent Health effects
Solder in printed circuit
boards, glass panels
and gaskets in
computer monitors
Lead (PB)  Damage to central and peripheral nervous
systems, blood systems and kidney damage.
 Affects brain development of children.
Chip resistors and
semiconductors
Cadmium (CD)  Toxic irreversible effects on human health.
 Accumulates in kidney and liver.
Relays and switches,
printed circuit boards
Mercury (Hg)  Chronic damage to the brain.
 Respiratory and skin disorders due to
bioaccumulation in fishes.
Corrosion protection of
untreated and
galvanized steel plates,
decorator or hardner for
steel housings
Hexavalent
chromium (Cr)
VI
 Asthmatic bronchitis.
 DNA damage.
 Sources, Constituents and effect of E-waste:

7
E-waste consists of Diverse items like ferrous and non-ferrous metals, glass,
plastics, electronic components and other items. The potential treatment
options based on this composition are given below:
 Encapsulation
 Incineration
 Sanitary landfill
 Treatment options:
[Ref: T. Srinivas, Environmental Biotechnology]

8
Designer Rodrigo Alonso created
N+ew Seats to address this -- stools
that are formed of a whole lot of
electronic junk. This was covered
back in 2007.
The idea behind N+EW isn’t the
creation of a recyclable object, but
the way to immortalize and to give a
last use to objects that their only
destination is contamination."
E-Waste Furniture
[Ref: www.treehugger.com]
Reuse of the electronic waste in the form of a stool:

9
5. Factors affecting solid waste management:
There are certain factors that affect the management of solid waste:
management. They are:
 Per capita income and status
 Climate and percentage moisture
 Systematic growth of city
 Status of the municipality
 Resources available
[Ref: T. Srinivas, Environmental Biotechnology]

10
6. Conclusion:
Solid waste management is the process of removal of solid waste in such
a manner that it does not cause any problem to environment and the
living organism as well. It is done through different methods as per the
category of the solid waste.

�ݺ�ߣ

environmental solidwastemanagement-151202092.pptx

Recommended

More Related Content

Similar to environmental solidwastemanagement-151202092.pptx (20)

More from abdi beder (20)

Recently uploaded (20)

environmental solidwastemanagement-151202092.pptx