waste management ( engineering)
TRANSCRIPT
WASTE MANAGEMENT
Presented by I.Priyadharshini M.RathnavathiTRP Engineering College
CONTENT
• INTRODUCTION• WHAT’S AN E-WASTE?• WHY TO CARE OF E-WASTE?• E-WASTE A CONSTITUENT FOR PAVEMENT
WITH LOW TRAFFIC• E-WASTE USED IN CONTRUCTION• BENEFITS OF THESE METHODS• CONCLUSION
INTRODUCTION
Waste management is the process in which the waste that are being generated by living organisms , machines, industries, etc are collected , transported and properly disposed.
E-Waste E-waste is a popular, informal name for electronic products
nearing the end of their “useful” life. E-waste has been categorized into three main categories, i.e.,
Large Household Appliances, IT and Telecom and Consumer Equipment.
Why to care of e-waste?
HARMFUL TOXICS IN E-WASTE
CAUSES
Mercury Brain and kidney damageArsenic Negative impact of skin , liver ,nervous and respiratory
system
Cadmium Defects in cognition , learning , behavior and neuromotor skills of the children and the kidney damage also
Chlorine Tissue damage and destruction of cell structureBromine Brain damage and cancerlead Damages the reproductive ,blood ,and nervous system
•These waste materials are disposed by incineration or landfill.•It causes land water and air pollution.•The e-waste disposed has the following hazardous materials and shows effect on humans.
E-WASTE ON PAVEMENT WITH LOW TRAFFIC
cement: PPC cement used with 8% as
fineness
FA: The maximum size of FA was taken to
be 4.75 mm. The testing of sand was
done as per IS: 383-1970.
CA: IERA (Integrated e- waste and the recycled coarse
aggregate)
E-waste: PCB boards are used as e-waste. Since the e-waste are of irregular shape and irregular size they are cut by using marble cutter The e-waste passing 20 mm sieve and retained on the 10mm sieve is collected and used in the preparation of concrete mix.
• (C1): Conventional aggregate; Standard mix • (C2): 5% e-waste + 95% recycled CA as replacement of conventional
aggregate. • (C3): 10% e-waste +90 % recycled CA as replacement of aggregate. • (C4):15% e-waste + 85 % recycled CA as replacement of aggregate. • (C5): 20% e-waste +80% recycled CA as replacement of aggregate.
Proportions of material for different combinations Combination
For 1 M3 of Concrete
CEMENT WATER RCA E-WASTE CA FA C1 394 197 0.00 0.00 988.52 753.50 C2 394 197 731.45 37.64 0.00 753.50 C3 394 197 692.96 75.27 0.00 753.50 C4 394 197 654.46 112.91 0.00 753.50 C5 394 197 615.96 150.55 0.00 753.50
`
TEST RESULTS
Mix 7 Days 28 Days
C1 13.78 21.63C2 13.19 20.59C3 12.59 17.93C4 12.15 16.15C5 10.52 14.07
MIX 7 DAYS 28 DAYSC1 2.75 3.66C2 2.33 3.5C3 1.58 3.75C4 0.75 0.91C5 0.83 2
COMPRESSION STRENGTH IN N/mm²
FLEXURAL STRENGTH IN N/mm²
Specimen after application load
Specimen before application load
E-waste for construction
• E-waste and plastic waste are the major problem in today scenario as these are non-biodegradable.
• E-waste and plastic (from plastic water bottles, water pouches and other plastic material) are grinded to small sizes ( 2mm to 10 mm)
• E-waste and plastic waste can be used with White Cement.• Rubbed against each other to develop a roughness so that
they can bond well with White Cement when mixed with it.. • Experiments done shows that grinded waste in certain
proportion act as a good filler material in concrete.
• Compressive Strength of the concrete Is Increased If The Waste Is Replaced With Fine Aggregate In Concrete.
• It will Reduce Its Cost Of Concrete Production From White Cement.
• It is used in Wall Decorative purposes also stops crack Formation.
• It Is Cheaper And Give Appealing And Aesthetic View To The Things With Durability.
Reference1. Rajiv Gupta, Harish Puppala, Nakka Rajesh (2015) “Application of Recycled Coarse Aggregates and E-Waste for Pavements with Low Traffic “, IOSR Journal of Mechanical and Civil Engineering , Volume 12, Issue 2 Ver. II , PP 64-70