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Degradation of PET plastics with engineered environmental bacteria

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Degradation of PET plastics with engineered environmental bacteria refers to the use of genetically modified or naturally adapted bacteria to break down polyethylene terephthalate (PET), a widely used plastic found in bottles, packaging, and textiles. PET is highly resistant to natural degradation, causing long-term environmental pollution. Scientists engineer environmental bacteria with special enzymes, such as PETase and MHETase, that can break PET into its basic building blocks, which can then be recycled or safely absorbed by nature. This approach offers a sustainable solution to plastic waste by combining biotechnology, microbiology, and environmental engineering.

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REFLECTION ON THE TOPIC: Degradation of PET plastics with engineered environmental
bacteria
The development of bacteria like ideonella sakalensis capable of breaking down polyethylene
terephthalate (PET) represent a paradigm shift in our approach to plastic pollution. Instead of
merely arranging waste, we are moving towards biologically recycling it.


IMPACT OF PET PLASTICS AND POTENTIAL ENVIRONMENTAL IMPACT IN
NIGERIA
1. Pr oduction and consum ption : Nigeria generates at least 2.3 millions tonnes of
plastic waste. The “Sechart water” culture alone is estimated to generate millions of
single use packs only.
2. Recycling rate: Formal recycling rates are low, estimated to be between 10-15%.
Recycling include largely informal, recycling on waste pickup manually from the
dumpsite
CURRENT ENVIRONMENTAL IMPACT OF (PET) PLASTICS IN NIGERIA
1. Clogged drainage and flooding
2. Water pollution
3. Land degradation
POTENTIAL ENVIRONMENTAL IMPACT OF ENGINEERED B ACTERIA IN
NIGERIA
Positive impacts
1. Water volume reduction
2. Creation of circular economy
3. Pollution cleanup
4. Economics incentive for collection
Negative impacts
1. Uncontrolled release and ecological eruption
2. Incomplete degradation
3. Distraction from core issue
4. High technological and energy cost
THE NEXT STEP TO MAK ING THE COMMON PRACTISE

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School year
2
Uploaded on
September 13, 2025
Number of pages
2
Written in
2025/2026
Type
Class notes
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Mrs olatuji
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