Waste Collection and Recycling Method

SBT 4635 Waste Management and Usage

Introduction One of the first steps of a solid waste management

system Proper planning and implementation services a

foundation for a sound waste management system Collection service in urban, suburban and rural area Different collection program in different communities Waste collection and transfer system may be complex

and need to consider important variables : Waste type, service area, level of desired service,

public vs private companies, financial resources, waste reduction programs, labour,

Other important variables Population distribution Overall topography and road layout Characteristics of the waste generated and quantity The land use and regulations Disposal methods use Weather conditions Type and number of vehicles available

Logistic of the collection program a)Storage container requirements

Communal bin

Mobile garbage bin 120L

Mobile garbage bin 240L

Roll on roll off (RORO) bin

Leach bin 660 L, 1100 L, 1500 L

b)Set-out requirements c)Waste separation d)Frequency of collection e) Waste pickup locations f)Collection equipment

f) Collection equipments

tricycle

Compactor Open tipper

Benefit Reduce injury risk Reduce vehicle needs Decrease labor needs Reduced environmental impacts Reduce tipping fees

Automated waste collection

Garbage collection in Venice

If the number of households that a truck can service in a single day has been determined, the number of collection vehicles needed for a community can be estimated by the equation:

N = SF/XW N= Number of collection vehicles needed S= The total number of households service F= The number of collections per week X= The number of customers a truck can service per day and W= the number of workdays per week

Route development Simple non computerized approach based on logical

principles Routes not be fragmented @ overlapped, compact and consists

of street segments in the same geographical area Equivalent workloads in each routes (constant total collection

plus haul time Start the route close to the garage @ motor pool Waste from heavily streets should not be collected during peak

hours For one-way street, best to start the route near the upper end of

the street

Computer-assisted routing Becoming popular route design, especially when the route need

to be adjusted periodically To program a detailed routes, some of the essential information

Block configuration Waste generation rates Distance between residence/ routes / disposal site/ transfer site Loading times

Exercise 1 In the town of PJ, it is determined that per capita waste

generation rate is 1.4kg per person per day. Collection is conducted once per week by the municipality. If the density of MSW in the typical trash container is 150kg/m3, how many 120L containers would be needed for a family of four?

Exercise 2 Determine the number of collection vehicles needed if 8250

households must be serviced once per week. The truck collect wastes 4 days per week, with 1 day for routine maintenance. Assume that an average the truck can service 1.4 households per minute. The actual time spent for waste collecting is 5 hour.

Types of collection system Communal collection Block collection Kerbside collection Door to door collection

Kerb service Pneumatic waste collection by suction

The Glade, Putra Heights, Selangor M-suite, Ampang NU Sentral Lot G , KL

ALDAR HQ building, Al Raha Beach,Abu Dhabi United Arab Emirates

Completely fitted with this operational new refuse vacuum utility the AWCS by Stream.

Privatization of solid waste collection in Malaysia

Transfer station The needs depends to the distance between disposal site and

the centre of the city. Advantage

Reduce traffic or smaller vehicles to the disposal site Reduce transport , fuel and labour cost Volume reduction Ability for processing (shredding) Waste sorting for recycling

Taman Beringin Transfer station. The first transfer station in Malaysia

Shah Alam Transfer Station

References

1.Agamuthu, P., (2001), Solid Waste: Principles and Management. Institute of Biological Sciences, University of Malaya, Kuala Lumpur.

2.John P., (2005), Waste Management Practices: Municipal, Hazardous and Industrial. Taylor & Francis group. USA.

3. PneumaticWaste Collection Systems as a New Utility Infrastructure in Modern Developments Today- A Case Study on Automated Waste Collection in Al Raha Beach Abu Dhabi http://www.stream-environment.com/

Laporan pengurusan sisa pepejal Malaysia http://www.ppsppa.gov.my

Waste Collection and Recycling Methods Waste collection, waste collection models, transfer and storage of waste, recovery, reuse and recycle.

Chapter 3 [1]

Chapters 5-6 [2]