SOLID WASTE By SRUTHI SRINIVAS
INCLUDES What is solid waste management? What are components of solid waste management? What are the advantages and disadvantages?
ABOUT ME EDUCATION:-doing bachelors in Andhra University INTERESTS: Archaeology drives me out V Passionate Learner Polity Enthusiast Follow me at https://unacademy.com/user/sruthi6470 .
SOLID WASTE MANAGEMENT Waste management or waste disposal are all the activities and actions required to manage waste from its inception to its final disposal This includes other activities: collection, transport, treatment and disposal of aste together with monitoring and regulation Waste can take any form that is solid, liquid, or gas and each have different methods of disposal and management.
CENTRAL PRINCIPLES OF WASTE MANAGEMENT There are a number of concepts about waste management which vary in their usage between countries or regions. Some of the most general, widely used concepts include 1. Waste hierarchy 2. Life-cycle of a product 3. Resource efficiency 4. Polluter-pays principle
1.Waste hierarchy The waste hierarchy refers to the "3 R(s)": reduce, reuse and recycle and often represented by pyramid. It classifies waste management strategies according to their desirability in ms of waste minimisation. The waste hierarchy represents the progression of a product or material through the sequential stages of the pyramid of waste management.
The aim of it is to extract the maximum practical benefits from products and to generate the minimum amount of end waste. The next step is to seek alternative uses for the waste that has been generated. Next is recycling which includes composting. Following this step is material recovery and waste-to-energy. . / The final action is disposal.
2.Life-cycle of a product Stages include: 1. Design 2. Manufacture 3. Di tribution 4/ Primary use and 5. then follows through the waste hierarchy's stages of reduce, reuse and recycle.
3.Resource efficiency Extracting resources to produce goods is more than the planet can replenish Resource efficiency is the reduction of the environmental impact from the goods produced from limited resources. This process of resource efficiency can address sustainability
4.Polluter-pays principal The principal states that who produce pollution should bear the costs of managing it to prevent damage to human health or the environment. Hence the producer is responsible for safe disposal, partial treatment of sewage, toxic gases etc. emitted by them
1.Collection This is the functional element of solid waste management . It is the process of gathering of solid waste and recyclable materials Workers appointed by the municipal cooperation gathers all the waste and even some people collect recyclable products made of plastic, glass and paper.
3.Transfer and transport This element involves two main steps the waste is transferred from a smaller collection vehicle to larger ransport equipment The waste is then transported, usually over long distances, to a processing or disposal site 1.
ADVANTAGES Conserving earth resources: 1, recycled paper is made from the recycled waste instead of cutting trees. 2. Helps in conserving forests and environment. Landfill sites are decreased Protect environment: 1. decreases pollution of soil, air and water 2. minimize health risk and help the economy
e Helps in mitigating global warming and in reducing pollution: 1. Burning non-biodegradable waste helps in reducing harmful gases which are emitted by fossil fuels. 2. Fossil fuels are conserved. 3. Decreases air pollution caused by harmful gases and soil pollution. Energy generation: 1. Bio degradable organic waste on fermentation gives biogas 2. Incineration gives heat energy
DISADVANTAGES The process is time consuming and require separated factories Not always cost efficient R cycling will produce pollutants, including chemical stews after breaking down the waste materials. Collection of garbage, rag pickers etc. low grade jobs increases.
THANK YOU Sruthi Srinivas
Presently doing bachelors in Andhra University college of engineering.interested in learning, reading novels, exposures,rides....