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Application of Green Technology in Management of Industrial Wastes
Application of Green Technology in Management of Industrial Wastes
5.6
Application of Green Technology in Industrial Waste Management
Development of Green Technology
The introduction of National Green Technology Policy in 2009 has paved a way for a wider utilisation of Green Technology in various sectors in Malaysia.
Community awareness towards environmental pollution and climate change has:
Sped up the efforts in producing and utilising Green Technology while sustainably managing resources.
Malaysia Green Technology and Climate Change Centre, which is also known as GreenTech Malaysia:
Is a government agency responsible for initiating various programmes and incentives to encourage the adoption of Green Technology in various economic sectors in Malaysia.
The usage of Green Technology is not solely limited to the industrial sector but it is very broad across various aspects of life.
In applications involving manufacturing of products or services, the use of technology with environmentally friendly approachesis adoptedstartingfromtheutilisation and management of resources to waste management.
Definition of Green Technology
Technology or application developed to minimise the negative effects of harmful human activities.
Green Technology Sectors in Malaysia
Sector
Examples of Application
Energy supply
Renewable energy such as;
Solar
Hydro
Geothermal
wWind
Transportation
Vehicles using alternative fuels.
Buildings
Use of environmentally friendly building materials and energy saving buildings.
Waste and Wastewater Management
Recycling and Landfill Leachate Treatment Method.
Agriculture and Forestry
Use of compost and forest preservation.
Industry
Use of energy efficient tools and technology.
Waste Mangement
Rapid developments and growth in population have contributed to large quantities of generated solid waste or rubbish.
If not properly managed, the quality of life and public health will be affected.
Waste management does not only involve local authorities, but all communities also need to play a role in ensuring the effectiveness of waste management, especially solid wastes.
Leachate is contaminated liquid produced from water leached from solid waste.
Green Technology in Various Stages of Waste Management
Wastewater Management
Wastewater is a liquid waste that consists of human waste, food waste, oil and chemicals.
Wastewater can be divided into;
Domestic wastewater
Stormwater runoff
Industrial wastewater.
Compared to domestic wastewater and stormwater runoff, industrial wastewater may contain;
Acrylonitrile
Methylbenzene
Toluene
Heavy metals, such as arsenic, mercury and lead.
These hazardous chemicals are difficult to decompose biologically and require more systematic treatments so that they will not pollute the environment nor affect human health.
Landfill Leachate Treatment Method by using the electrolysis principle, which is also known as electrocoagulation process, is a Green Technology approach that can be used to treat wastewater, including industrial wastewater.
Carbon or copper electrodes are used while wastewater is the electrolyte in the electrocoagulation process.
Pollutants will form flocs and can be isolated from water and then removed as sludge.
After proper treatment, sludge can be used as fertilisers for the agricultural sector or disposed of by appropriate methods depending on the composition of the materials contained in sludge.
Wastewater that has been treated can be reused for crop irrigation, or discharged as effluent.
Wastewater Treatment Process
Application of Green Technology in Management of Industrial Wastes
5.6
Application of Green Technology in Industrial Waste Management
Development of Green Technology
The introduction of National Green Technology Policy in 2009 has paved a way for a wider utilisation of Green Technology in various sectors in Malaysia.
Community awareness towards environmental pollution and climate change has:
Sped up the efforts in producing and utilising Green Technology while sustainably managing resources.
Malaysia Green Technology and Climate Change Centre, which is also known as GreenTech Malaysia:
Is a government agency responsible for initiating various programmes and incentives to encourage the adoption of Green Technology in various economic sectors in Malaysia.
The usage of Green Technology is not solely limited to the industrial sector but it is very broad across various aspects of life.
In applications involving manufacturing of products or services, the use of technology with environmentally friendly approachesis adoptedstartingfromtheutilisation and management of resources to waste management.
Definition of Green Technology
Technology or application developed to minimise the negative effects of harmful human activities.
Green Technology Sectors in Malaysia
Sector
Examples of Application
Energy supply
Renewable energy such as;
Solar
Hydro
Geothermal
wWind
Transportation
Vehicles using alternative fuels.
Buildings
Use of environmentally friendly building materials and energy saving buildings.
Waste and Wastewater Management
Recycling and Landfill Leachate Treatment Method.
Agriculture and Forestry
Use of compost and forest preservation.
Industry
Use of energy efficient tools and technology.
Waste Mangement
Rapid developments and growth in population have contributed to large quantities of generated solid waste or rubbish.
If not properly managed, the quality of life and public health will be affected.
Waste management does not only involve local authorities, but all communities also need to play a role in ensuring the effectiveness of waste management, especially solid wastes.
Leachate is contaminated liquid produced from water leached from solid waste.
Green Technology in Various Stages of Waste Management
Wastewater Management
Wastewater is a liquid waste that consists of human waste, food waste, oil and chemicals.
Wastewater can be divided into;
Domestic wastewater
Stormwater runoff
Industrial wastewater.
Compared to domestic wastewater and stormwater runoff, industrial wastewater may contain;
Acrylonitrile
Methylbenzene
Toluene
Heavy metals, such as arsenic, mercury and lead.
These hazardous chemicals are difficult to decompose biologically and require more systematic treatments so that they will not pollute the environment nor affect human health.
Landfill Leachate Treatment Method by using the electrolysis principle, which is also known as electrocoagulation process, is a Green Technology approach that can be used to treat wastewater, including industrial wastewater.
Carbon or copper electrodes are used while wastewater is the electrolyte in the electrocoagulation process.
Pollutants will form flocs and can be isolated from water and then removed as sludge.
After proper treatment, sludge can be used as fertilisers for the agricultural sector or disposed of by appropriate methods depending on the composition of the materials contained in sludge.
Wastewater that has been treated can be reused for crop irrigation, or discharged as effluent.
Wastewater Treatment Process
Chapter : Consumers and Industrial Chemistry
Topic : Application of Green Technology in Management of Industrial Wastes
Form 5
Chemistry
View all notes for Chemistry Form 5
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