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Refuse Disposal In Multistoried
Buildings
D. Y. Patil College of Engineering and
Technology
Fourth Year B. Arch.
Advance Services I (AR07-03)
Introduction
• Waste disposal in tall buildings having many
challenges
• Waste disposal systems depends in type of the
building
• Waste disposal systems can be as follows
Crew collecting waste
Tenants taking waste to services areas
Tenants putting waste in chutes
Nature of refuse
Domestic refuse : It consists of rubbish from
residential units. Sometimes refuse from catering and
other similar premises can be included in this category.
Commercial refuse: this includes by products of
businesses like paper waste, plastic wrappers etc.
Industrial refuse: this includes wastes from building
operations, agricultural and horticultural waste
materials produced by industries. Some of them may
be toxic, dangerous, flammable or offensive.
Methods of refuse handling
• Bins and Bags
Cleaner will collect refuse bags from each floor
using a bin that is pushed on a cart .
The cart then taken down to the refuse chamber
by a service lift.
Service bay should allow the vehicular access to
refuse collection truck
Bin centre should be near to water source for
easy washing and cleaning, either on ground
or basement floor.
Methods of refuse handling
• The bin areas should be well ventilated
screened from the sun and powerful smell.
• Separate space should be provided for
placement of bin.
unit 5.4 refuse disposal in multistoried buildings.pptx
unit 5.4 refuse disposal in multistoried buildings.pptx
unit 5.4 refuse disposal in multistoried buildings.pptx
Refuse Chute
• Built for transporting and collecting the refuse
from residential units from different heights.
• The refuse is received from the successive units
through the inlets located on the vertical system of
pipes that convey refuse through it and discharges
into the collecting chamber from where the refuse
is cleared at suitable intervals.
• Components of refuse chute are the inner hopper,
the collection chamber(wheel container is placed
in a chamber for collection of waste for periodic
removal ) and vent at top.
Main Components
Chute: a vertical pipe system passing from
floor to floor
Provided with ventilation and inlet openings,
for receiving refuse from successive units
And ending at ground floor on the top of the
collecting chamber.
Inlet hopper: A receptable fitting for
receiving refuse from each flat and dropping
it into the chute.
Collection Chamber: A compartment
situated at the lower end of the chute for
collectng and housing the refuse during the
period of successive cleaning
Refuse Chute
Number of Chutes—
The number of chutes depends upon –
the convenience to the user and –
the quantity of refuse to be handled between two subsequent clearings.
Material of Construction—
Chutes may be constructed out of –
asbestos cement, –
R.C.C. Pipe or –
Stainless steel with smooth inside finish.
Diameter of the Pipe—
Chutes shall be of a minimum internal diameter of 380mm
Finish—
The inside surface of the chute-should be finished as smoothly as possible
so as not to allow any sticking of refuse particle that may cause choking
eventually.
Refuse Chute
Location—
– The chute may be carried through service shafts meant for carrying drainage pipes.
– The location shall be mostly determined by the position of inlet hopper and the
collecting chamber that is most convenient for the user.
– It should also be considered to locate the chute away from living rooms in order to
avoid noise and smell nuisance.
Construction—
– The chute pipes should be assembled vertically, and-properly clamped to the wall.
– The joints should be of cement mortar arid the chute may be squarely embedded
into the surrounding walls.
Ventilation—
– Natural ventilation should be adequate to prevent any possible odour nuisance
.– The upper end of the chute, that is, beyond the uppermost floor should be provided
with a ventilation pipe to the full bore which should rise 2 to 2.5 m above the roof or
terrace of the building.
– An umbrella type cowl with wire mesh at the top will be helpful to prevent rainfall
and other external objects of nuisance potential.
– For high rise buildings mechanical ventilation of the exhaust type is recommended.
Chute Maintenance
• Access—Each chute pipe should be provided
with an access door-at intervals not greater than
every third floor.
• Wrapping of Refuse—To help preventing spillage
and blockage, the residents should be encouraged
to wrap their refuse.
• Flushing of Chute—Y-connection at terrace level
may preferably be provided in order to direct a
water hose for cleaning purposes, if needed.
INLET HOPPER
• Location—
• – In individual chute system, the inlet hopper shall be
located in the passage near the kitchen and in the
common chute system towards the end of the common
passage.
• – There should be adequate lighting at this location.
• – Inlet Hopper shall be located 750mm above floor level
• – For ground floor flats the inlet hoppers may be placed
at a higher level and a flight of steps may be provided
for using the same.
Design and Construction
– Hopper shall be constructed such that there should
be minimum escape of odour or any other vapour
when the hopper door is kept open
– The hopper flap shall not open inside the chute pipe
which might obstruct refuse coming from the top.
– The door and the frame should be fire resistant.
– Size of the Mouth and Throat
—The mouth shall have a maximum size of 25 cm
height and 36 cm width. The throat should not be less
than the size of the mouth. The diagonal of the mouth
should not be larger than the chute size.
Design and Construction
– Height of the Hopper—
The hopper should be constructed at a height of 75
cm measured from the floor level to the lower
edge of the inlet opening. –
Inner Surface—The interior of the hopper should
slope towards the main chute at an angle not less
than 45° to 60 ° to the horizontal for better
performance. The inside finish should be as
smooth as possible.
unit 5.4 refuse disposal in multistoried buildings.pptx
unit 5.4 refuse disposal in multistoried buildings.pptx
COLLECTION CHAMBER
Location—
• The collection chamber shall be situated at ground level. Capacity—
• If the refuse is discharged directly on the floor of the collection
chamber, the capacity is designed on the quantity of refuse expected
from the chute between two consecutive clearings.
• It may be recommended to provide a minimum capacity of 0.054
m3 /family or apartment per day.
• In the case of chutes serving small number of apartments, the
minimum size of the collection chamber shall be 1.2 × 1.2 × 1.8 m in
order to facilitate providing trolley and easy cleaning of the chamber.
• Normally the height of chute bottom above the top of the container
shall be about 30 cm in order not to allow any refuse to spill on the
floor of the chamber.
• It will be preferable to provide a minimum head room of 2 m for the
collection chamber to facilitate easy entry into it.
unit 5.4 refuse disposal in multistoried buildings.pptx

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unit 5.4 refuse disposal in multistoried buildings.pptx

  • 1. Refuse Disposal In Multistoried Buildings D. Y. Patil College of Engineering and Technology Fourth Year B. Arch. Advance Services I (AR07-03)
  • 2. Introduction • Waste disposal in tall buildings having many challenges • Waste disposal systems depends in type of the building • Waste disposal systems can be as follows Crew collecting waste Tenants taking waste to services areas Tenants putting waste in chutes
  • 3. Nature of refuse Domestic refuse : It consists of rubbish from residential units. Sometimes refuse from catering and other similar premises can be included in this category. Commercial refuse: this includes by products of businesses like paper waste, plastic wrappers etc. Industrial refuse: this includes wastes from building operations, agricultural and horticultural waste materials produced by industries. Some of them may be toxic, dangerous, flammable or offensive.
  • 4. Methods of refuse handling • Bins and Bags Cleaner will collect refuse bags from each floor using a bin that is pushed on a cart . The cart then taken down to the refuse chamber by a service lift. Service bay should allow the vehicular access to refuse collection truck Bin centre should be near to water source for easy washing and cleaning, either on ground or basement floor.
  • 5. Methods of refuse handling • The bin areas should be well ventilated screened from the sun and powerful smell. • Separate space should be provided for placement of bin.
  • 9. Refuse Chute • Built for transporting and collecting the refuse from residential units from different heights. • The refuse is received from the successive units through the inlets located on the vertical system of pipes that convey refuse through it and discharges into the collecting chamber from where the refuse is cleared at suitable intervals. • Components of refuse chute are the inner hopper, the collection chamber(wheel container is placed in a chamber for collection of waste for periodic removal ) and vent at top.
  • 10. Main Components Chute: a vertical pipe system passing from floor to floor Provided with ventilation and inlet openings, for receiving refuse from successive units And ending at ground floor on the top of the collecting chamber. Inlet hopper: A receptable fitting for receiving refuse from each flat and dropping it into the chute. Collection Chamber: A compartment situated at the lower end of the chute for collectng and housing the refuse during the period of successive cleaning
  • 11. Refuse Chute Number of Chutes— The number of chutes depends upon – the convenience to the user and – the quantity of refuse to be handled between two subsequent clearings. Material of Construction— Chutes may be constructed out of – asbestos cement, – R.C.C. Pipe or – Stainless steel with smooth inside finish. Diameter of the Pipe— Chutes shall be of a minimum internal diameter of 380mm Finish— The inside surface of the chute-should be finished as smoothly as possible so as not to allow any sticking of refuse particle that may cause choking eventually.
  • 12. Refuse Chute Location— – The chute may be carried through service shafts meant for carrying drainage pipes. – The location shall be mostly determined by the position of inlet hopper and the collecting chamber that is most convenient for the user. – It should also be considered to locate the chute away from living rooms in order to avoid noise and smell nuisance. Construction— – The chute pipes should be assembled vertically, and-properly clamped to the wall. – The joints should be of cement mortar arid the chute may be squarely embedded into the surrounding walls. Ventilation— – Natural ventilation should be adequate to prevent any possible odour nuisance .– The upper end of the chute, that is, beyond the uppermost floor should be provided with a ventilation pipe to the full bore which should rise 2 to 2.5 m above the roof or terrace of the building. – An umbrella type cowl with wire mesh at the top will be helpful to prevent rainfall and other external objects of nuisance potential. – For high rise buildings mechanical ventilation of the exhaust type is recommended.
  • 13. Chute Maintenance • Access—Each chute pipe should be provided with an access door-at intervals not greater than every third floor. • Wrapping of Refuse—To help preventing spillage and blockage, the residents should be encouraged to wrap their refuse. • Flushing of Chute—Y-connection at terrace level may preferably be provided in order to direct a water hose for cleaning purposes, if needed.
  • 14. INLET HOPPER • Location— • – In individual chute system, the inlet hopper shall be located in the passage near the kitchen and in the common chute system towards the end of the common passage. • – There should be adequate lighting at this location. • – Inlet Hopper shall be located 750mm above floor level • – For ground floor flats the inlet hoppers may be placed at a higher level and a flight of steps may be provided for using the same.
  • 15. Design and Construction – Hopper shall be constructed such that there should be minimum escape of odour or any other vapour when the hopper door is kept open – The hopper flap shall not open inside the chute pipe which might obstruct refuse coming from the top. – The door and the frame should be fire resistant. – Size of the Mouth and Throat —The mouth shall have a maximum size of 25 cm height and 36 cm width. The throat should not be less than the size of the mouth. The diagonal of the mouth should not be larger than the chute size.
  • 16. Design and Construction – Height of the Hopper— The hopper should be constructed at a height of 75 cm measured from the floor level to the lower edge of the inlet opening. – Inner Surface—The interior of the hopper should slope towards the main chute at an angle not less than 45° to 60 ° to the horizontal for better performance. The inside finish should be as smooth as possible.
  • 19. COLLECTION CHAMBER Location— • The collection chamber shall be situated at ground level. Capacity— • If the refuse is discharged directly on the floor of the collection chamber, the capacity is designed on the quantity of refuse expected from the chute between two consecutive clearings. • It may be recommended to provide a minimum capacity of 0.054 m3 /family or apartment per day. • In the case of chutes serving small number of apartments, the minimum size of the collection chamber shall be 1.2 × 1.2 × 1.8 m in order to facilitate providing trolley and easy cleaning of the chamber. • Normally the height of chute bottom above the top of the container shall be about 30 cm in order not to allow any refuse to spill on the floor of the chamber. • It will be preferable to provide a minimum head room of 2 m for the collection chamber to facilitate easy entry into it.