Waste disposal and recycling

1. PROCUREMENT AND SUPPLY CHAIN
MANAGEMENT
WASTE DISPOSAL AND RECYCLING
BY
AKHIL GEORGE
A13559016141
SECTION D
GROUP 1

2. Categories Of Waste Generated:
 Construction
 Municipal
 Hazardous
 E-Waste
 Biological waste

3. CONSTRUCTION WASTE
 Quantity of waste is uncertain due to variety of estimation methods and
varying pace of developmental activities in cities
 About 25% to 30% of total solid waste is construction related. Of total
25 to 30 million tonnes of construction waste generated per annum , only
5% is processed.
Type of construction Waste generated
New construction 40 to 60kg per square metre
Old construction 40 to 50kg per square metre
Demolition 300 to 500 kg per square
metre
Construction Waste Generation

4. Stages In Handling Construction Waste

5. Construction Waste Recycling And Reuse
 Recyclable waste includes metals, plaster, untreated timber, packaging
material, concrete, masonry, insulation etc.
 The unwanted waste is sold to vendors who sell it to recycling plants
Or else the waste can be sent to recycling units directly. Waste
generators who generate more than 20tons per day or 300 tons of waste
per month are bulk generators. Collection and recycling costs may be
20% less for bulk generators.
 Top soil can be retained and reused in landscape
 Technology such as Mivan can be reused many times and recycled for
use in different buildings

7. Recovery Of Waste
Recovery of waste can be done through:
 Mobile C&D waste recycling on site involving crushing, screening and magnetic
separation
 Semi mobile waste recycling using manual means and end screening
 Stationary plant waste recycling involving crushing ,screening and purification
 Intermediate collection centers can be provided every2to3km.
 Land can be leased or acquired can be acquired for waste management recycling
activities.
 For every 20,000 tons of waste generated, a recycling plant is required.

8. Recovery Of Waste and Land fill
 Recycling plants should be
 planned for a period of 20 to 25 years.
 Set away from habitable areas and sensitive zones
 Surrounded by buffer zones, hedges, fences etc.
 Have concrete access roads
 All waste materials entering to be weighed
 Amenities for health and sanitation provided to workers
 Land fill should be done after considering all laws and regulations

9. Non-management Of Waste Treatment And
Disposal Results In
 Top soil degradation
 Emissions
 Contamination of ground water
 Spread of diseases

10. References
 Central Pollution Control Board. (2016). GUIDELINES ON ENVIRONMENTAL
MANAGEMENT OF CONSTRUCTION & DEMOLITION (C & D) WASTES
(. Available: http://cpcb.nic.in/. Last accessed 15/03/2018.
 Department of science and technology. (). report. Available:
http://www.tifac.org.in. Last accessed 15/03/2018.
 Research gate. (). C&D Cycle. Available: https://www.researchgate.net/figure/A-
flow-chart-for-the-two-approaches-of-C-D-waste-management-life-
cycle_fig4_260250393. Last accessed 14/03/2018.

11. Thank You