| dc.description.abstract | E-waste or electrical and electronic
waste is one of the fastest-growing waste in
the world and this problem affects Sri Lanka as
well. E-waste will become an emerging issue in
the near future because the estimated e-waste
generation in 2021 is 0.09 million tons in Sri
Lanka. E-waste contains valuable
compositions that have economic value when
it recycled correctly. Unfortunately, Sri Lanka
has not improved in e-waste recycle and ewaste management. Therefore the objectives
of this research were to find out different
types of e-waste generate in Sri Lanka, identify
different compositions, develop an application
for hazardous non-recycle composition and
develop mathematical models for the weight
of the composition of e-waste. The study was
based on data collected from e-waste
collectors. The research project reveals the
hazardous, non-hazardous and recycle, nonrecycle composition in selected devices are;
1G mobile phones (0.5kg), 2G mobile phones
(0.235kg), 3G mobile phones (0.155kg), 4G
mobile phones (0.145kg), Tv (14kg), laptops
(2.3kg), computers (9kg), A/C machines
(34kg), refrigerators (135.5kg), fluorescent
bulbs (0.185kg), and washing machines
(34kg). Average weight has to be considered
because of the different types, different
models, different brands for the same device.
Mercury is the only non-recycle hazardous
composition in these devices. The results of
this research revealed the ten compositions
(mercury, plastic, copper, aluminum,
cadmium, silver, gold, palladium, steel and
lead) found in e-waste and how to calculate
them.
The study reveals the amount of weight of
compositions that can be found in e-waste and
which compositions can be affected by the
environment. The proper e-waste
management system is needed to minimize ewaste generation. E-waste recycling is
necessary but should conduct in a proper
manner. | en_US |
