Cr³8 Project Work Slides
Transcript of Cr³8 Project Work Slides
Project Title: Recycling of food Project Title: Recycling of food wastewaste
Cr³8(Group2 ) Cr³8(Group2 ) members:members:
>Wei Ywin>Wei Ywin
>Jasmine>Jasmine
>Hong Rui>Hong Rui
>Yong Quan>Yong QuanName of Name of Supervising Supervising Teacher:Teacher:>Mr Ng Yong >Mr Ng Yong ShengSheng
Content Content PointsPoints
Choice & ActionsChoice & Actions Choice: Recycling of food wasteChoice: Recycling of food waste Focus:Focus: Food compost Food compost Key Questions & research on themKey Questions & research on them
Choice & Choice & ActionsActions
Choice & FocusChoice & Focus
Choice: Recycling of food wasteChoice: Recycling of food waste
Focus: Food compostFocus: Food compost Actions to be takenActions to be taken
Making the artifactMaking the artifact
Making the visual/ graphic presentationMaking the visual/ graphic presentation
Choice: Recycling of Choice: Recycling of food wastefood waste
making compost from a wide range of food making compost from a wide range of food wastewaste
plan and/or perform investigation on its plan and/or perform investigation on its effect on growth of plants/ selected plantseffect on growth of plants/ selected plants
teach residents/ students on how to make teach residents/ students on how to make compost to be used at home or in gardens in compost to be used at home or in gardens in residential areasresidential areas
generate biogas from food wastegenerate biogas from food waste
Choice: Recycling of food wasteChoice: Recycling of food wastemaking compost from a wide range of making compost from a wide range of
food wastefood waste Materials used to make the artifactMaterials used to make the artifact>Tea bags>Tea bags
>Coffee powder>Coffee powder
>Banana skins>Banana skins
>Plastic container>Plastic container
>Egg shells>Egg shells
>Peanut shells>Peanut shells
>Soil>Soil*-plant seeds into the artifact*-plant seeds into the artifact
Week 1
Choice: Recycling of food wasteChoice: Recycling of food wastemaking compost from a wide range of making compost from a wide range of
food wastefood waste Properties of the materials used to make the Properties of the materials used to make the
artifactartifact>Tea bags>Tea bags
>Coffee powder>Coffee powder
>Banana skins>Banana skins
>Plastic container>Plastic container
>Egg shells>Egg shells
>Peanut shells>Peanut shells
>Soil>Soil*-plant seeds into the artifact*-plant seeds into the artifact
Week 1
Choice: Recycling of Choice: Recycling of food wastefood waste
making compost from a wide range of food making compost from a wide range of food wastewaste
plan and/or perform investigation on its plan and/or perform investigation on its effect on growth of plants/ selected plantseffect on growth of plants/ selected plants
teach residents/ students on how to make teach residents/ students on how to make compost to be used at home or in gardens in compost to be used at home or in gardens in residential areasresidential areas
generate biogas from food wastegenerate biogas from food waste
Focus: Food Focus: Food compostcompost
In order to In order to plan and/or perform investigation plan and/or perform investigation on its effect on growth of plants/ selected on its effect on growth of plants/ selected plantsplants, we need to know more about food , we need to know more about food compost.compost.
Compost can be Compost can be richrich in nutrients. in nutrients. It benefits for the land in many ways, It benefits for the land in many ways,
including as a including as a soil conditionersoil conditioner, a , a fertilizerfertilizer, , addition of addition of vital humusvital humus or or humic acidshumic acids and as and as a naturala natural pesticidepesticide for soil. for soil.
Choice: Recycling of food wasteChoice: Recycling of food wasteplan and/or perform investigation on plan and/or perform investigation on
its effect on growth of plants/ its effect on growth of plants/ selected plantsselected plants Investigation on “effect on growth of Investigation on “effect on growth of
plants/selected plants”plants/selected plants” With the food compost acting as a With the food compost acting as a soil soil
conditionerconditioner or a or a fertilizerfertilizer which eventually which eventually contain contain mineralsminerals, the plants will grow , the plants will grow healthierhealthier than plants without food compost. than plants without food compost.
Choice: Recycling of food wasteChoice: Recycling of food wasteplan and/or perform investigation on plan and/or perform investigation on
its effect on growth of plants/ its effect on growth of plants/ selected plantsselected plants
FactsFacts found out doing the “ found out doing the “experimentexperiment”” Effect on the growth of plants growing using Effect on the growth of plants growing using
food compostfood compost
Choice: Recycling of Choice: Recycling of food wastefood waste
making compost from a wide range of food making compost from a wide range of food wastewaste
plan and/or perform investigation on its plan and/or perform investigation on its effect on growth of plants/ selected plantseffect on growth of plants/ selected plants
teach residents/ students on how to make teach residents/ students on how to make compost to be used at home or in gardens in compost to be used at home or in gardens in residential areasresidential areas
generate biogas from food wastegenerate biogas from food waste
Choice: Recycling of food wasteChoice: Recycling of food wasteteach residents/ students on how to make teach residents/ students on how to make
compost to be used at home or in gardens in compost to be used at home or in gardens in residential areasresidential areas How to make the artifact?How to make the artifact?
You will need the following items:You will need the following items:
>Tea bags tea inside the tea bags must be taken out)>Tea bags tea inside the tea bags must be taken out)
>Coffee powder>Coffee powder
>Banana skins cut into tiny pieces)>Banana skins cut into tiny pieces)
>Plastic container not smaller than B3 size)>Plastic container not smaller than B3 size)
>Egg shells crashed into tiny pieces)>Egg shells crashed into tiny pieces)
>Peanut shells crashed into tiny pieces)>Peanut shells crashed into tiny pieces)
>Dry soil>Dry soil*-plant seeds into the artifact*-plant seeds into the artifact
Choice: Recycling of food wasteChoice: Recycling of food wasteteach residents/ students on how to make teach residents/ students on how to make
compost to be used at home or in gardens in compost to be used at home or in gardens in residential areasresidential areas How to make the artifact?How to make the artifact?
Step 1Step 1:mix the items together :mix the items together Step 2Step 2:place a thin layer of soil to act as the base in :place a thin layer of soil to act as the base in
the plastic container.the plastic container. Step 3Step 3:place a thin layer of the mix items on top :place a thin layer of the mix items on top
of the thin layer of the soil.of the thin layer of the soil. Repeat Repeat Step 2Step 2 and and Step 3Step 3 respectivelyrespectively till the till the
container is filled to the brim.**container is filled to the brim.***-the *-the last layer last layer on the top of the container must be a thin on the top of the container must be a thin
layer of layer of soilsoil..
*-water the seeds everyday and wait for the plants to grow *-water the seeds everyday and wait for the plants to grow for weeks.for weeks.
Choice: Recycling of Choice: Recycling of food wastefood waste
making compost from a wide range of food making compost from a wide range of food wastewaste
plan and/or perform investigation on its plan and/or perform investigation on its effect on growth of plants/ selected plantseffect on growth of plants/ selected plants
teach residents/ students on how to make teach residents/ students on how to make compost to be used at home or in gardens in compost to be used at home or in gardens in residential areasresidential areas
generate biogas from food wastegenerate biogas from food waste
Choice: Recycling of Choice: Recycling of food wastefood waste
generate biogas from generate biogas from food wastefood waste AdvantagesAdvantages of biogas generated from food waste of biogas generated from food waste
Biogas could potentially help reduce global climate Biogas could potentially help reduce global climate change. change.
utilization of biogas would generate enough electricity to utilization of biogas would generate enough electricity to meet up to three percent of the continent's electricity meet up to three percent of the continent's electricity expenditureexpenditure
saving fossil fuels, time collecting firewood, money and saving fossil fuels, time collecting firewood, money and cooking timecooking time
protecting forestsprotecting forests using crop residues for animal fodder instead of fuelusing crop residues for animal fodder instead of fuel improving hygienic conditions, the rural standard of living, improving hygienic conditions, the rural standard of living,
and reducing air and water pollutionand reducing air and water pollution producing high-quality fertilizerproducing high-quality fertilizer enabling local mechanization and electricity productionenabling local mechanization and electricity production
Choice: Recycling of Choice: Recycling of food wastefood waste
generate biogas from generate biogas from food wastefood waste Examples of countries using of biogas Examples of countries using of biogas
generated from food waste generated from food waste North AmericaNorth America In North America, utilization of biogas would generate In North America, utilization of biogas would generate
enough electricity to meet up to three percent of the enough electricity to meet up to three percent of the continent's electricity expenditure. continent's electricity expenditure.
GermanyGermany Germany is Europe's biggest biogas producer as it is Germany is Europe's biggest biogas producer as it is
the market leader in biogas technology. the market leader in biogas technology.
Choice: Recycling of Choice: Recycling of food wastefood waste
generate biogas from generate biogas from food wastefood waste Examples of countries using of biogas generated Examples of countries using of biogas generated
from food waste from food waste United KingdomUnited Kingdom On the 5th October 2010, biogas was injected into the UK On the 5th October 2010, biogas was injected into the UK
gas grid for the first time. Sewage from over 30,000 gas grid for the first time. Sewage from over 30,000 Oxfordshire homes is sent to Didcot sewage treatment Oxfordshire homes is sent to Didcot sewage treatment works, where it is treated in an anaerobic digester to works, where it is treated in an anaerobic digester to produce biogas, which is then cleaned to provide gas for produce biogas, which is then cleaned to provide gas for approximately 200 homes.approximately 200 homes.
IndiaIndia In India, Pakistan and Bangladesh biogas produced in In India, Pakistan and Bangladesh biogas produced in
small-scale digestion facilities is called small-scale digestion facilities is called gobar gasgobar gas; it is ; it is estimated that such facilities exist in over two million estimated that such facilities exist in over two million households in India and in thousands in Pakistan, households in India and in thousands in Pakistan, particularly North Punjab, due to the thriving population of particularly North Punjab, due to the thriving population of livestock. livestock.
Choice: Recycling of Choice: Recycling of food wastefood waste
generate biogas from generate biogas from food wastefood waste Examples of countries using of biogas Examples of countries using of biogas
generated from food waste generated from food waste ChinaChina There are 30 million rural households in China that There are 30 million rural households in China that
have biogas digesters.have biogas digesters. United StatesUnited States With the many benefits of biogas, it is starting to be With the many benefits of biogas, it is starting to be
utilized in the United States more. In 2003, the United utilized in the United States more. In 2003, the United States consumed 147 trillion BTU of energy from States consumed 147 trillion BTU of energy from "landfill gas", about 0.6% of the total U.S. natural gas "landfill gas", about 0.6% of the total U.S. natural gas consumption.consumption.
Key Key QuestionsQuestions Can every food waste be made into compost?Can every food waste be made into compost? What is biogas?What is biogas? Are there any Are there any other effectother effect on food waste on food waste
when we do the decomposing of food when we do the decomposing of food waste? Are there other places to have waste? Are there other places to have decomposing of food waste taking place decomposing of food waste taking place besides the garden?besides the garden?
Give at least 5 examples and state clearly Give at least 5 examples and state clearly what you have found out. what you have found out.
Explain what will happen if small quantity of Explain what will happen if small quantity of weed killer is added into the food compost?weed killer is added into the food compost?