Define natural resources Select a lesson
 

natural resources recovery
what does a natural resource meanVarious types of natural resourcesUses of natural resourcesDistribution of natural resourcesWhat threatens our natural resourcesWhat does resource recovery involveHow to conserve natural resourcesexplaining natural resources to children
SUGGESTED LESSONS
Genetic engineering
Green energy
crude oil
Effects of overfishing
Water shortage
climate change
DeforestationThe ozone layer
Waste managementWhat is an ecosystem
Wasting food

what is a raw material



Resource Recovery


In recent years, waste has been viewed as a potential resource and not something that must end up in the landfill. From paper, plastics, wood, metals and even wastewater, experts believe that each component of waste can be tapped and turned into something very useful.

Fossil fuel use by the pulp and paper industry in the United States of America declined by more than 50% between 1972 and 2002, largely through energy efficiency measures, power recovery through co-generation and increased use of biomass.source1

Resource recovery is the separation of certain materials from the waste we produce, with the aim of using them again or turning them into new raw materials for use again.

It involves composting and recycling of materials that are heading to the landfill. Here is an example: Wet organic waste such as food and agricultural waste is considered waste after food consumption or after an agricultural activity. Traditionally, we collect them and send them to a landfill. In Resource Recovery, we collect and divert to composting or anaerobic digestion to produce biomethane. We can also recover nutrients through regulator-approved use of residuals.

recovery cans

The concept can be applied in household settings too. Many communities have places that residents can drop off waste that they have already sorted in their homes. This makes it easy for waste recovery organizations to pick them up for further processing.

Recovering waste is not an easy task. It involves good planning, education, community participation, and use of technology. But it has huge environmental and economic benefits and must be seriously considered.

Resource recovery benefits us because it reduces our need to tap into new raw materials, thereby saving the environment. For example, by separating and collecting all paper products from the waste we create, we can recycle them to reduce the need for new pulp which comes from timber. Less energy is also used in recycling old materials than new raw materials.

how is wastewater reusedThink of wastewater and stormwater as another example. The demand for potable water can be greatly reduced if we can divert all wastewater and stormwater for treatment and re-use. We can use it for gardening, agriculture, sanitation (cleaning) and even heating by energy producers.

In Victoria, Australia, reclaimed water is used to irrigate vineyards, tomatoes, potatoes, and other crops in addition to traditional landscape irrigation.source1

In Mexico City, nearly 46 million gallons (174 million liters) per day of reclaimed water is used for irrigation of green areas, recharge of recreational lakes and agriculture. source1

Go backWhat is food waste next

resources from nature

Sources:
1. UNEP. MANAGING AND CONSERVING THE NATURAL RESOURCE BASE FOR SUSTAINED ECONOMIC AND SOCIAL DEVELOPMENT. February 7, 2014
2,3 RESOURCE RECOVERY & REUSE SERIES 4. Global Experiences in Water Reuse
by Jonathan Lautze, Emilie Stander, Pay Drechsel, Allegra K. da Silva and Bernard Keraita
CGIAR Research Program on Water, Land and Ecosystems. ISBN 978-92-9090-791-6





SEE OTHER LESSONS AVAILABLE ON ESCHOOLTODAY
WASTE MANAGEMENT ACTIVITIES FOR CHILDREN  | CLIMATE CHANGE & GLOBAL WARMING EXPLAINED | OCEAN ACIDIFICATION
LAND POLLUTION | AIR POLLUTION | WATER POLLUTION | OZONE DEPLETION | OVERFISHING | WATER SCARCITY
FOOD WASTE | ECOSYSTEMS OF THE EARTH RENEWABLE ENERGY | NON-RENEWABLE ENERGY | KINDS OF ENERGY

Copyright © 2008-2016 eSchooltoday in association with BusinessGhana.com.
All Rights Reserved.