hello everybody my name is Zohir Chowdhury, and today we'll talk about special waste and
e-waste so what is he waste he weighs stands for electronic waste and essentially we produce a lot
of e-waste if you think about it from cellphone print her television VCR DVD players its etc
we use a lot of electronic waste especially in the last 20-30 years we've been pretty we have
been using a lot of electronics which in turn because of their relatively short life time they
become waste very easily the reason why their lifetime is so short currently is for multiple
reason one thing could be that the firmware or the software that needs to be used with that
with the electronics is no longer supporting that older version of the electronics so that
hardware even though it works you have to dispose of it at the times it could be just that you your
system is just running slow and with all the new internet and the features and the apps your older
hardware with the older software is unable to to support all of these new features that are
demanded by the high load that we need from the internet or other platforms that the electronic
relies on so it becomes it becomes unusable essentially then there's also a trend that's
going on that every time they can renew every every year each manufacturer will release a new
product with some new updates and you need to have that new product which makes your older product
unusable to some extent or like waste for for you anyway so with the passage of the electronic waste
recycling out of 2003 certain portion of the electronic waste stream are defined a defined
and the system to recover and recycle them will be administered regularly beyond the universal
waste rules that apply to material handling so II which is a special kind of waste and
electronic waste they are important there there are dangers in a sense if they're released into
the environment because many of this electronic waste they contain high amount of lead mercury
cadmium which is very dangerous as well as arsenic which which once Derrick would want
people are exposed to these chemicals from the environment it can lead to cancer miscarriages
miscarriages neurological damage as well as diminished IQs to name a few of the health
effects so it's very important to be able to control elect electronic system and its
distribution properly the video in here is very interesting and I highly recommend that you watch
it it will also be posted on blackboard these are the location where electronic waste are produced
so in blue shows all the areas where electronic waste are produced in the million tons and the
other areas in red shows all the major recycling centers on the under globe so produce electronic
waste in developed countries typically they end up in the in from developed countries they end
up in developing countries in the major recycling centers and as we mentioned that the electronic
waste contains a lot of valuable chemicals for example a mobile phone can contain over
40 elements and most common metal is copper but can also be precious and semi-precious
semi precious metals within a cell for such as silver gold and palladium and for many of the
manufacture for many of the recyclers that are located in developing countries for them is very
attractive to be able to harvest all of these metals and precious and semi-precious metals
from from electronic waste so they encourage exportation of us from developed countries
to developing countries because they can make a livelihood out of it however as the video shows
many of these developing countries they don't have proper infrastructure to to be able to
deal with all of this electronic waste so they are released into the environment after the precious
metals are extracted and causes severe problem in developing countries however there are some
initiatives right now or one such important one is the Basel convention which prohibits such types of
trade and without the proper infrastructure being available so developed countries they must ensure
that developing countries do have the proper infrastructure to handle the electronic waste
before that waste is exported into developing countries so let's do a quick concept check
which of the following is or are an example of e-waste exactly cell phone and a computer mouse
C and D these two are examples of electronic waste so that answer will be two of the above thank you