A garbage disposal unit is a device installed under kitchen sinks that shreds food waste into small particles that can pass through plumbing systems. It reduces the amount of food waste in homes by quickly grinding up items like peels, rinds, and leftovers. Garbage disposal units come in different models that vary in features like the type of feed (batch or continuous), noise levels, and motor power. While they provide sanitary disposal of food waste, they can increase organic loads on wastewater treatment. Overall, garbage disposals provide an easy way to reduce food waste but their environmental impact depends on the efficiency of wastewater treatment.

1. Waste disposal unitWaste disposal unit

2. ““Garburator”Garburator”

3. AA garbage disposal unitgarbage disposal unit oror waste disposalwaste disposal
unitunit is a device, usually electrically powered,is a device, usually electrically powered,
installed under a kitchen sink between theinstalled under a kitchen sink between the
sink's drain and the trap which shreds food wastesink's drain and the trap which shreds food waste
into pieces small enough—generally less thaninto pieces small enough—generally less than
2 mm (0.079 in)—to pass through plumbing.2 mm (0.079 in)—to pass through plumbing.

4. • High efficiency : low energy consumption brings you low
electricity costs
• contribute to environmental protection

5. An easy way to reduce the amount ofAn easy way to reduce the amount of
food waste in your home is to installfood waste in your home is to install
a garbage disposal.a garbage disposal.
Quickly and efficiently eliminating leftoverQuickly and efficiently eliminating leftover
potato peels, fruit rinds and many otherpotato peels, fruit rinds and many other
types of food waste, the disposal grindstypes of food waste, the disposal grinds
it all into fine particles that are flushedit all into fine particles that are flushed
out of the chamber and into the septicout of the chamber and into the septic
system.system.

6. At Your DisposalAt Your Disposal
Garbage disposal units function in two basicGarbage disposal units function in two basic
modes —modes —

batch feed and continuousbatch feed and continuous
feed.feed.
 Batch-feed models operate only when theBatch-feed models operate only when the
disposal lid is engaged and the unit isdisposal lid is engaged and the unit is
activated.activated.
 Continuous-feed models operate with the flickContinuous-feed models operate with the flick
of a switch and run until the unit is switchedof a switch and run until the unit is switched
off.off.
 Basic disposal models operate with a typicalBasic disposal models operate with a typical
amount of noise.amount of noise.

7.  Most households with several members require atMost households with several members require at
least a 3/4-horsepower unitleast a 3/4-horsepower unit
 Increased horsepower reduces the likelihood ofIncreased horsepower reduces the likelihood of
jamming, handles a larger volume of food wastejamming, handles a larger volume of food waste
more efficiently and translates into less cleanupmore efficiently and translates into less cleanup
time.time.
 Your sink style also may play a role in your choice.Your sink style also may play a role in your choice.
 An inexpensive stainless-steel sink may not provideAn inexpensive stainless-steel sink may not provide
solid support for a heavier, high-powered model.solid support for a heavier, high-powered model.
 And an overpowering disposal may cause theAnd an overpowering disposal may cause the
surrounding countertop and cabinets to rattlesurrounding countertop and cabinets to rattle
At Your DisposalAt Your Disposal

8. Features #Features #
Anti jammingAnti jamming
 Models that possess "anti-jamming" features help reduce theModels that possess "anti-jamming" features help reduce the
occurrence of simple jams, creating a more trouble-freeoccurrence of simple jams, creating a more trouble-free
operation.operation.
 Some offer a button on the disposer, which must be pressedSome offer a button on the disposer, which must be pressed
manually to reset the motor. Some require the homeowner tomanually to reset the motor. Some require the homeowner to
apply the hex-wrench-style accessory tool included with theapply the hex-wrench-style accessory tool included with the
disposer to work the jam loose manually.disposer to work the jam loose manually.
 Some advanced models feature anti-jam circuitry thatSome advanced models feature anti-jam circuitry that
automatically senses pending food jams and can reverse motorautomatically senses pending food jams and can reverse motor
direction or increase power to deter them.direction or increase power to deter them.
 For models equipped with an "auto-reverse," the motor reversesFor models equipped with an "auto-reverse," the motor reverses
direction each time the disposer is used.direction each time the disposer is used.
 This helps free itself of potential jams without the intervention ofThis helps free itself of potential jams without the intervention of
the homeowner.the homeowner.

9. Features ##Features ##
Quiet OperationQuiet Operation
 Higher-end models feature enhancements that allowHigher-end models feature enhancements that allow
them to operate more quietly.them to operate more quietly.
 For instance, the outer shell of a disposer may containFor instance, the outer shell of a disposer may contain
insulation to reduce noise.insulation to reduce noise.
 Some models feature special rubber mounting designedSome models feature special rubber mounting designed
to reduce vibration-related noise.to reduce vibration-related noise.
 Some include a specially-engineered sink baffle,Some include a specially-engineered sink baffle,
designed to reduce the disposer noise.designed to reduce the disposer noise.
 These features matter more in environments where theThese features matter more in environments where the
kitchen is exposed to other parts of the living quarters.kitchen is exposed to other parts of the living quarters.

10. Features ###Features ###
Stainless SteelStainless Steel
 For lasting performance, look for a model that features a stainlessFor lasting performance, look for a model that features a stainless
steel grind chamber and components.steel grind chamber and components.
 Stainless steel components are less subject to corrosion and provideStainless steel components are less subject to corrosion and provide
greater durability.greater durability.
Dishwasher connectorDishwasher connector
 Most disposal models can be connected directly to your dishwasher,Most disposal models can be connected directly to your dishwasher,
enabling you to grind up solid food particles cleansed from yourenabling you to grind up solid food particles cleansed from your
dishes.dishes.
 This waste transfers through a hose connected from your dishwasherThis waste transfers through a hose connected from your dishwasher
to the disposal, where it is stored to be ground up with other foodto the disposal, where it is stored to be ground up with other food
waste the next time your disposer is operated. This installation optionwaste the next time your disposer is operated. This installation option
eliminates the time-consuming chore of pre-rinsing dishes beforeeliminates the time-consuming chore of pre-rinsing dishes before
placing them in the dishwasher.placing them in the dishwasher.

11. Feature ####Feature ####
 sound-deadeningsound-deadening
Our model ,however, we are planning to doOur model ,however, we are planning to do
run in more quieter means with thisrun in more quieter means with this
feature(similar to what is using in dishwashersfeature(similar to what is using in dishwashers
and new machines now a days.)and new machines now a days.)

12. Food Waste DisposerFood Waste Disposer
 1.Perpetual magnetism motor1.Perpetual magnetism motor
 2.Stainless steel grinding chamber2.Stainless steel grinding chamber
 3.Nice overload protector3.Nice overload protector
 4.Good service4.Good service
Specifications:Specifications:
 Power 500WPower 500W
 Voltage 220V / 110VVoltage 220V / 110V
 Frequency 50HZFrequency 50HZ
 Rotate speed 2800 R /MinRotate speed 2800 R /Min

13. Working SmarterWorking Smarter
 Batch-feedBatch-feed
 Batch feed model offer the reassurance ofBatch feed model offer the reassurance of
covered operation.covered operation.
 Requiring the “Requiring the “use of a stopper prior touse of a stopper prior to
activation”activation”, they are well-suited to households, they are well-suited to households
with children or those concerned withwith children or those concerned with
““accidentally dropping unwanted items intoaccidentally dropping unwanted items into
the disposal during operation”.the disposal during operation”.
 These models are slightly more expensive, butThese models are slightly more expensive, but
offeroffer advanced grinding featuresadvanced grinding features andand quieterquieter
operation.operation.
 They also require a little more set up time.They also require a little more set up time.

14. Continuous-feedContinuous-feed
 models operate by a wall switch, ormodels operate by a wall switch, or
accessory air switch.accessory air switch.
The sink baffle -- a rubber shield placedThe sink baffle -- a rubber shield placed
inside the sink opening -- contains foodinside the sink opening -- contains food
debris within the disposer and, in somedebris within the disposer and, in some
models, contributes to quieter operation.models, contributes to quieter operation.
 Some models offer auto reverse functions,Some models offer auto reverse functions,
advanced grinding features and specialadvanced grinding features and special
circuitry to eliminate jams.circuitry to eliminate jams.

15. Motor sizeMotor size
 Most models come in varying ranges of horsepower to tackleMost models come in varying ranges of horsepower to tackle
different levels of need.different levels of need.
 Basic models come with as little as 1/3 horsepower, best suitedBasic models come with as little as 1/3 horsepower, best suited
for small households with infrequent meal preparation or thosefor small households with infrequent meal preparation or those
grinding only small amounts of basic food waste materialsgrinding only small amounts of basic food waste materials
such as fruit or vegetable skins.such as fruit or vegetable skins.
 Disposers with motors less than 1/2 horsepower are notDisposers with motors less than 1/2 horsepower are not
recommended for households with more than two people.recommended for households with more than two people.
 A 3/4- or 1-horsepower disposer fits better for households withA 3/4- or 1-horsepower disposer fits better for households with
more frequent meal preparation and larger amounts of waste.more frequent meal preparation and larger amounts of waste.
 The higher horsepower is recommended for those who want toThe higher horsepower is recommended for those who want to
handle the difficult-to-grind food waste, such as fibroushandle the difficult-to-grind food waste, such as fibrous
materials and bones.materials and bones.
 These also offer better sound insulation and may run quieterThese also offer better sound insulation and may run quieter
than basic units.than basic units.

16. Environmental impactEnvironmental impact
 Kitchen waste disposal units increase the load of organicKitchen waste disposal units increase the load of organic
carbon that reaches water treatment plant, which in turncarbon that reaches water treatment plant, which in turn
increases the consumption of oxygen.increases the consumption of oxygen.
 Metcalf & Eddy quantified this impact as 0.04 pounds ofMetcalf & Eddy quantified this impact as 0.04 pounds of
biochemical oxygen demand per person per day wherebiochemical oxygen demand per person per day where
disposers are used.disposers are used.
 An Australian study that compared in-sink foodAn Australian study that compared in-sink food
processing to composting alternatives via a life cycleprocessing to composting alternatives via a life cycle
assessment found that ;assessment found that ;
while the in-sink disposal performed well with respect to climate change,while the in-sink disposal performed well with respect to climate change,
acidification, and energy usage, it did contribute to eutrophication andacidification, and energy usage, it did contribute to eutrophication and
toxicity potentials.toxicity potentials.

17. Environmental impactEnvironmental impact
 This may result in higher costs for energy needed to supplyThis may result in higher costs for energy needed to supply
oxygen in secondary operations.oxygen in secondary operations.
 However, if the waste water treatment is finely controlled, theHowever, if the waste water treatment is finely controlled, the
organic carbon in the food may help to keep the bacterialorganic carbon in the food may help to keep the bacterial
decomposition running, as carbon may be deficient in thatdecomposition running, as carbon may be deficient in that
process.process.
 This increased carbon serves as an inexpensive andThis increased carbon serves as an inexpensive and
continuous source of carbon necessary for biologic nutrientcontinuous source of carbon necessary for biologic nutrient
removal.removal.
 One result is larger amounts of solid residue from the waste-One result is larger amounts of solid residue from the waste-
water treatment process.water treatment process.

18.  According to a study at the East BayAccording to a study at the East Bay
Municipal Utility District’s wastewaterMunicipal Utility District’s wastewater
treatment plant funded by the EPA,treatment plant funded by the EPA,
 food waste produces three times the biogas asfood waste produces three times the biogas as
compared to municipal sewage sludge.compared to municipal sewage sludge.
 In a study at the Hyperion (Los Angeles)In a study at the Hyperion (Los Angeles)
sewage treatment works, disposer usesewage treatment works, disposer use
showed minimal to no impact on the totalshowed minimal to no impact on the total
bio solids byproduct from sewage treatmentbio solids byproduct from sewage treatment
 and similarly minimal impact on handlingand similarly minimal impact on handling
processes as the high volatile solids destructionprocesses as the high volatile solids destruction
(VSD) from food waste yield a minimum amount(VSD) from food waste yield a minimum amount
of solids in residue.of solids in residue.

19.  Energy usage is not high; typically 500 - 1500 WEnergy usage is not high; typically 500 - 1500 W
of power is used, comparable to an electric iron,of power is used, comparable to an electric iron,
but only for a very short time, totalingbut only for a very short time, totaling
approximately 3-4 kWh of electricity perapproximately 3-4 kWh of electricity per
household per year.household per year.
 Daily water usage varies, but is typically oneDaily water usage varies, but is typically one
gallon of water per person per day, comparablegallon of water per person per day, comparable
to an additional toilet flush.to an additional toilet flush.
 One survey of these food processing units foundOne survey of these food processing units found
a slight increase in household water usea slight increase in household water use

20. AdvantagesAdvantages
 Low noise and minimum vibration after balance processing to betterLow noise and minimum vibration after balance processing to better
protect sink of your kitchenprotect sink of your kitchen
 Good security and reliability when used and alloy titaniumGood security and reliability when used and alloy titanium
technique guarantees corrosion-proof and aging-prooftechnique guarantees corrosion-proof and aging-proof
 Functional device with auto overload resistant protector canFunctional device with auto overload resistant protector can
preventprevent
possible damages caused by misusepossible damages caused by misuse
 Blockade-proof: the machine will liquefy food waste to flow intoBlockade-proof: the machine will liquefy food waste to flow into
your sewage system or septic tankyour sewage system or septic tank
 Sanitary: they can reduce the chances of pests and bacteria toSanitary: they can reduce the chances of pests and bacteria to
grow, thus to hedge infectious diseases such as "SARS“grow, thus to hedge infectious diseases such as "SARS“
 Ease of use: the disposer can self-clean as long as you turn onEase of use: the disposer can self-clean as long as you turn on
the tap and the powerthe tap and the power

22. Used at:Used at:
 Household activitiesHousehold activities
 OrganizationsOrganizations
HotelsHotels
RestaurantsRestaurants
 Lab usageLab usage
SchoolsSchools
HospitalsHospitals

23. Thank you.Thank you.