Bangladesh studies

1. BGMEA University of Fashion & Technology
Topic: Recycle And Reuse.
Submitted To Submitted By
Marzia Sultana Group-5
Lecturer, 191-089-801
Department of Engineering, BUFT 191-090-801
191-091-801
191-093-801
191-267-801
191-097-801
182-071-801

3.  Recycling:
Recycling is the process of converting waste materials into new
materials and objects. The recovery of energy from waste materials is
often included in this concept. The recyclability of a material depends
on its ability to reacquire the properties it had in its original state.
 Reuse:
Reuse is the action or practice of using an item, whether for its
original purpose or to fulfil a different function. It should be
distinguished from recycling, which is the breaking down of used
items to make raw materials for the manufacture of new
products.

4.  There are two main types of recycling processes —
1) Open-loop recycling
2) Closed-loop recycling

5.  Loops for production-waste, product and
material recycling:

6. • Recycling
consumer waste:
 Collection
 Curbside
collection
 Source
separation
 Buy-back
centers
 Drop-off
centers
 Distributed
recycling
 Sorting

7.  Recycling codes are used to identify the material from which an
item is made, to facilitate easier recycling or other reprocessing.
 The presence on an item of a recycling code, a chasing arrows
logo, or a resin code, is not an automatic indicator that a material
is recyclable; it is an of what the item is made of.
Material Types Codes
plastic 1-7
Batteries 8-14
Paper 20-22
Metals 40-41
Biomatter/Organic
material
50, 51, 60-69
Glass 70-79
Composites 80-99

8. Cost–benefit analysis
This study examines the costs and benefits of recycling &
reuse to address the following questions:
 What are the economic costs
and benefits of diverting a
number of waste streams
from current disposal
practices?
 Are there opportunities for
net economic benefits from
increased levels of diversion
of individual waste streams ?
 What is the net economic
effect of given levels of
recovery of each of these
wastes ?

9. There are 3 main
ways to recycle &
reuse…..
Recyclates
Remanufacturing
Repurposing
Recyclate is a raw
material that is sent
to, and processed in
a waste recycling
plant or materials
recovery facility, and
used to form new
products.

10. Remanufacturing is
"the rebuilding of a
product to specifications
of the original
manufactured product
using a combination of
reused, repaired and new
parts".
Repurposing is to
use a tool for use as
another tool, usually
for a purpose
unintended by the
original tool-maker.

11. Some phenomena of recycling and reuse:
Plastic material reuse:
Plastic can cause pollution in the environment. These
effects can put human beings and the environment in
danger. Also, If we do not correctly manage plastic,
making new ones can be resources. It is thus
reasonable to reuse and reprocess plastic to prevent
waste.

12. Plastic material recycle:

13. What are the benefits? Lets find out-
1. Reduce the amount of trash the ends up in
the oceans.
2. Reduces the release of carbon dioxide and
harmful gases into the environment.
3. Saves energy & petroleum that produces
may use to make new plastic.
4. Prevents global warming.
More than 8 million tons of plastic bottles
in the sea each year and it is estimated that
in the year 2050 There will be more plastic
than fishes in the sea.

14. Textile waste reuse:
80 percent of the textiles that are thrown away can be recycled and use again, whereas,
Currently only 25% is being recycled. Less than 5% of all the garments that is thrown
In the bin actually end up as twist.

15. Textile waste recycling:

16. Water recycling and reuse:
Here some ways to cut down wastes and
Reuse the water:
1. Reusing Water Used For Washing
Vegetables/Cooking
2. Creating A Rain Garden.
3. Collecting Overflowing Water From Plants
4. Reuse Excess Water
5. Reuse shower water as flashing.

17. Modern wastewater treatment process that have advanced substantially
during the twentieth century. Effluent Treatment Plant (ETP) is one of them.

18. Ceramics Waste Recycling
 Ceramics can be crushed and
recycled into a range of useful
products, diverting waste from
landfill and decreasing emissions
and toxic outputs used in the
production process.
 By recycling or reusing these
ceramics, large amounts of waste
is diverted from landfill as well as
helping reduce the demand for
natural resource.

19. Ceramics Re-use
 Ceramics are any material that is
created by heating and cooling a
non-metal, such as clay. This
technically includes glass, but we
usually mean pottery and dishware
when we talk about ceramics.
 The reuse of ceramic waste from
the sanitary ware industry as a
partial substitute for conventional
coarse aggregates requires a simple
treatment process comprising
crushing, using a jaw-crusher, and
subsequent washing and sieving.

20. Metals Recycling
 Metals are valuable materials that can
be recycled again and again without
degrading their properties. Scrap
metal has value, which motivates
people to collect it for sale to
recycling operations.
 Metals can be recycled repeatedly
without altering their properties.
According to the American Iron and
Steel Institute (AISI), steel is the most
recycled material on the planet. The
other highly recycled metals include
aluminum, copper, silver, brass, and
gold.

21. Metals Re-use
 When it comes to reusing metals, it`s very
difficult to think of something that we reuse on
a daily basis. Usually, we fuse metal and make
new things out of it, however, metal car parts
are being reused all the time, especially when a
car is being taken down to parts.
 Coffee cans are also a great example. A lot of
people gather coffee cans and fill them up with
various screws and other hardware
accessories.
Here are two examples of reusable objects:
 Aluminum cans– they can be reused to make
different cans
 Aluminum foil– it is later reused to make
candy wrappers

22.  Computer
 Battery
 Solar panel
 Wind turbine
Computer recycling: Computer
recycling, electronic recycling or e-
waste recycling is the disassembly
and separation of components and
raw materials of waste electronics.

23. Battery recycling is a
recycling activity that aims
to reduce the number of
batteries being disposed
as municipal solid waste.
A solar panel, or
photo-voltaic (PV)
module, is an assembly
of photo-voltaic cells
mounted in a framework
for installation.
aluminum frames and
junction boxes are
dismantled manually at
the beginning of the
process.

24. Older turbines were in some
early cases not required to be
removed when reaching the end
of their life. Interest in recycling
blades varies in different markets
and depends on the waste
legislation and local economics.
Glass recycling
Glass recycling is the
processing of waste glass
into usable products. Glass
that is crushed and ready to
be remelted is called cullet.

25.  Deforestation
 Water pollution
 Air pollution
 Soil pollution
 Sound pollution
Disposing of waste has huge environmental impacts
and can cause serious problems. ... Some waste will
eventually rot, but not all, and in the process it may
smell, or generate methane gas, which is explosive
and contributes to the greenhouse effect. Leachate
produced as waste decomposes may cause
pollution.

27.  Because the social support of a
country is likely to be less than the
loss of income to the poor
undertaking recycling, there is a
greater chance for the poor to come
in conflict with the large recycling
organizations.
 One labor-intensive underused
waste is electronic and computer
waste. Because this waste may still
be functional and wanted mostly by
those on lower incomes, who may
sell or use it at a greater efficiency
than large recyclers.

28. Recycled Art:
Turning Trash into
Treasure
Recycled art is a specific type of
creative work made from discarded
materials. So, this could be anything
from old plastic toys to tires to cans or
scraps of cloth. Artists who specialize
in recycled art will literally turn our
trash into treasure-
Many schools have created recycling
awareness clubs in order to give
young students an insight on
recycling.

29. Prevents pollution caused by
reducing the need to harvest
new raw materials, Saves
energy, Reduces greenhouse
gas emissions that contribute
to global climate change, helps
sustain the environment for
future generations.
Recycling & reuse is very
beneficial for our country and
the world. The younger
generation needs to get used to it.
Then our next world will be as
beautiful as a dream.