Integrated Solid Waste Management - PowerPoint Presentation

Slide1

Integrated Solid

Waste

Management

Kutaisi

–

Accompanying

Technical Training –

5th Training

“

Municipal

Waste

Management

Planning

“

Basic

options

/

decisions

for

collection

and

container

settings

Some

planning

advice

provided

by

Jan Reichenbach,

International Expert

for

Solid

Waste

Management

Optimize

collection in already connected areas and/or extend to other areas how to achieve targets for collection coverage how to ensure cost efficient operations Introducing separation at source  for what, where, when, howInvolving the private sector or not generally yes or no, if yes where and where not how to do it/not to do it (delivery obligations)Striving for autarky or engage in cooperative solutionsBuilding on citizens particpation or trust on obedient population where to what extent

Basic

decisions

-

collection

Optimize

collection in already connected areas and/or extend to other areasBasic decisions and options (I)

70%

of

inhabitants

Decs

.:

add

container to intensify collectionRes.: 60% >> 80%

85%

of

inhabitantsDecs.: provide containerRes.: 60% >> 80%

85%

of

inhabitants

Decs

.:

provide

container

Res.: 60% >> 85%

Introducing

separation at source  for what, where, when, howBasic decisions and options (II) Topic for May / June trainingalso including public awareness issues and planning

Building

on voluntary particpation or trust on obedient populationBasic decisions and options (III)

Option

1

Option 2

Main

guiding principles:Capacities should suffice the needs of the citizens to get rid of their generated waste within reasonable (sanitary and space constraints) intervals, i.e. nobody should be forced to litter or dump waste in natureContainer distribution should allow convenient disposal (acceptable distance from the source of waste generation)Container distribution and capacities should allow collection tours to be as much efficient as possiblePlanning advice: Recommendations for container settings

Collection

is efficient.......when containers are completely filled at the moment of collection, i.e. no trips to empty containers which are only half filled or even lessno lay-bys (overfilling of containers) which causes the collection crew considerable effort to clean up the site manually and wastes operation time of the truck (and fuel to restart or run it in standstill)Planning advice: Recommendations for container settings

Please

explainPlanning advice: Recommendations for container settings

How

to place containers (I)VisibleEasily and safely accessible for citizens from one side and collection trucks from the otherNot hindering traffic (flows) and not hindred by traffic (at rest), e.g.- not at traffic lights- not at crosswalks- not at extremely narrow streets- not in curvesNot where it would not seem appropriate for aesthetic or hygienic reasonsNot where is a risk of a critical serious exposure (e.g. on slopes, flood prone sites) Still somehow central and close to waste generation hotspotsIn the way (number and location) that the main guiding principles are metPlanning advice: Recommendations for container settings

How

to place containers (II)Not evenly across the cityAt first rather concentrated in places where the most waste is generated and/or people are willing to pass by with their wasteConcentrated in fact refers to specially selected areasSet up containers here in a larger number(even more than one at a single place)so as to get to the point where a collectiontour becomes really effective because containers by and large are optimally filledthis requires prior assessment (approximation) for first setout subsequent monitoring and adjustment/optimization (adding or relocating containers)

Planning

advice

:

Recommendations

for

container

settings

Container

qualityAt present these type containers are mainly used in the project area Why for now is recommendable to stick to these metal containers?Because plastic containers do burn much more easily!Planning advice: Recommendations for container settings

Container

provision (approximation)Container capacities for household collectionmost common (MGB) 120 / 240 / 360 / 770 /1100 litresLimiting factorvolumeusable (=net) volume is determined by bulk densitybulk density normally ranges between 100-200 kg/m³example: 120 l, 150 kg/m³ Bulk density = 18 kg per container 1100 l, 100 kg/m³ Bulk density = 110 kg per container one person in project region generates about 0.7 kg of waste per day i.e. waste from about 150 persons would fill the container within 24 hPlanning advice: Recommendations for container settings

Container

collection (from households)Container gross weight Bulk density = pouring density * filling levelLimiting factorsworking timehuman power (labor protection, OHS provisions)example: 120 l, 150 kg/m³ Bulk density = 18 kg per container, for 900 container per shift = 16 t !!Collection: Some key figuresContainer size [in l]Bulk density [in kg/m³]min. max.MGB 120 / 240100160MGB 770 / 1100100120Container size [in l]Emptyings [container per day shift] min. max. averageMGB 120 / 2407001,100900MGB 770 / 1100

100

300

150

Routing guidelines (also mentioned in ANNEX 1 of TR MWC)

Routes should not be fragmented or overlapping. Each route should be compact consisting of road segments clustered in the same geographical area.Collection plus haul time should be reasonably constant for each route.The collection routes should begin as near the garage or truck point of origin as possible.Within the route, right hand turns are preferred to left-hand turns because of their greater efficiency. Collecting from one side of the road at the time, it is generally best to route with clockwise right turns around blocksHeavily travel roads should not be collected during rush hours.One-way roads are best collected by starting near the upper end of a road working down through a looping process.Dead-end roadways should be considered as a segment of the roads they intersect. They must be collected by driving down and making a u-turn. Steep hills should be collected on both sides of the road while the truck is moving downhill for safety, loading ease, collection speed, vehicle wear, and fuel conservation.Higher elevations should be at the start of a route.Planning advice: Recommendations for collection logistics