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Transcript of Sustainable Solutions
(cc) photo by Metro Centric on Flickr
(cc) photo by Franco Folini on Flickr
(cc) photo by jimmyharris on Flickr
(cc) photo by Metro Centric on Flickr
"If we collaborate, we can settle this disagreement and consolidate a healthy environment and a vibrant economy. But this is the time to act. "
Albert Arnold Gore, Jr.
American politician and social activist.
Scientists realized that natural resources aren't inexhaustible, the environment's capacity to absorb the waste is limited and our actions have an impact on the environment.
What is it and how does it come to sustainable development?
Sustainable development is the relationship that exists between development, ecology and society, which occurs at the same time.
2. No pollutant agents should be produced faster than that to be recycled, neutralized or absorbed by the environment.
To advance sustainable development, we must know how to use renewable energy sources like solar, wind, tidal ... they are cheap and ecological.
1. Any renewable resources should be used no longer than that of its generation.
2.Social sustainability is the maintenance of social cohesion and its ability to work in pursuit of common goals.
1. Economic sustainability is when the activity moves to the environmental and social sustainability is financially feasible and profitable.
3.Environmental sustainability: compatibility between the activity in question and the preservation of biodiversity and ecosystems, preventing the degradation of source and sink functions.
3.No non-renewable resources should be used more quickly than it is necessary to substitute a renewable resource used in a sustainable manner.
Our high school
Is another class
4th floor and roof terrace
Main ideas to implement.
in toilets and bathrooms.
Water leak detection.
Watering plants at night.
School plan to create awareness.
Avoid throwing chemicals down the drain.
Double burden cisterns
Saving plans in the garden.
Check the water meter regularly.
recycle the water used.
Some of these ideas would require investment, but in a long-term perspective they could help to reduce costs.
Ideas for social sustainability:
Ideas for environmental and economic sustainability:
The best way to promote environmental sustainability is to promote recycling and saving resources and this activity should be profitable.
Water saving measures:
We must take into account the social consequences of the activity at all levels.
To begin with, we must establish some goals like these:
Enhance training in all population groups.
Increase environmental awareness of all citizens.
Offer students appropriate learning activities for their level of training.
Encourage school-community and social relations.
Installing healthy habits.
Our center is public and accessible to everybody, and apart from the grants of the Ministry of Education, it promotes the collection of old textbooks to help other students, and it has community facilities to use the books and the Internet. Besides, there´s a department aimed at helping students.
In addition, a program promoted by the center called "School Success Plan" is focused on helping communication between parents and teachers in order to help students, and it includes projects such as PROA, COMENIUS, literary or scientific tours etc...
How it develops in our center:
Our school uses the water for gardening, cleaning rooms and bathrooms, but the showers aren't used, and there isn´t a canteen.
I think our school doesn't spend a lot of water (but it is always better to save as much as possible) and it has two cisterns that collect up to 32,000 litres of rainwater.
1.2 - Collect rainwater.
3.4 - Clean and purify the water.
5.6 - Bring the water to the heater.
7 - The water is incorporated to the water pipes and used.
How do the cisterns work?
It is always better to water the plants at night, but in our case, most of these are inside the greenhouse, which has a great advantage:
According to each season, the greenhouse changes the timer: It starts watering at dawn (as plants would freeze at night) and it stops at the hottest hours of the day (as plants would get burnt)
Water saving devices, for example:
Linked to the taps, they replace usual filters and mix water with air, producing a rich stream.
Save up to 50% water and energy.
2. Motion sensors
Allow the water flow "only" when hands are underneath to avoid wasting it.
Reuse water in the sink for the toilet cistern.
Water treatment system
Selective filtering system.
less than 100 €
over 4000 €
Other taps that take less time.
more than 10 000€ (is very expensive)
Install dual flush.
Electricity saving measures:
Other saving measures:
Main ideas to implement.
LED lights installed
Switch off unused appliances
Use of low-power devices
Advantage of natural light
Stand-by mode off
The school uses about 11,510 kw / hour in a month.
One person uses about 66 kw / hour in a month.
The school uses the same as 178 people.
Light spending is greater than water spending
LED light installation:
The lights are on from 8:00 am to 10:30 pm (almost 15 hours) and installing LED lights would help to reduce up to 40% of consumption.
It would cost 70,000€ and it is slow to make profits.
Other possible solutions:
Use additional energy to operate.
Regulators and timers
In some areas it would be effective.
More economical and profitable.
Each plate can cost 600€ and there are government aids up to 80% for installing them.
Awareness about saving:
We can help to reduce consumption:
Turning off outside lights during certain hours.
Disconnecting electronic devices.
Due to the weather conditions in Ceuta, we don't need heating except for a few days a year.
It is not profitable to install it.
Turning off the light when we leave classrooms.
More than 5000€
In two years it would be paid.
What would be more profitable?
Isolation of walls
Other solutions are
It would be used only at the right time.
It consumes more electricity.
Things that we can save
Save organic waste:
Save inorganic waste:
Gardening students make compost with organic waste THEY generate.
The waste generated by the rest of the school.
We don' t waste water :
The plants are watered by hand, bathed in a "pool" to absorb all the water and not to lose it.
We can reuse the water:
We should install filters in the laboratory to avoid contaminating the water.
Spend over 310€
In the greenhouse, irrigation spray doesn' t work.
Spend replace over 500€
Our school spends 720 kg of paper a year.
144,578 pages in a year.
About 10 people's weight.
Although we try to recycle as much as possible, we don't recycle everything.
We use lots of paper in photocopies.
Some class notes online, but not all students have Internet at home.
Digital whiteboards are gradually replacing them.
Textbooks are becoming fewer.
Homemade fertilizer for gardens.
This will also help to reduce waste after the breaktime.
By: Musáfira T.S
from I.E.S Abyla, Ceuta
Awareness is very important.
Don't waste paper and recycle.
Don't mix paper with other waste.
They can prepare workshops to raise awareness among students.
Put recycling points for batteries and glass.
It is difficult to put three containers in each classroom.
There are types of waste that aren't recycled.
The most important thing for changes is AWARENESS.
The school spends 123 m³ of water/month.
About 123,000 litres.
Average amount spent by 26 people.