Refuse Derived fuel refers to
Segregated high calorific fraction of processed MSW
Refuse Derived Fuel Definition Explained
Refuse Derived Fuel, often abbreviated as RDF, is a fuel generated from the combustible or energy-rich components of municipal solid waste (MSW). It's a crucial part of waste management and waste-to-energy initiatives.
Understanding Refuse Derived Fuel (RDF)
RDF is created through a process that typically involves several steps:
- Segregation: Separating the waste stream to isolate combustible materials (like plastics, paper, textiles, wood) from non-combustible materials (like glass, metals, inert materials).
- Processing: The segregated combustible fraction undergoes further treatment. This might include shredding, drying, screening, and pelletizing to achieve a consistent size, moisture content, and energy content (calorific value).
- High Calorific Value: The goal of processing is to concentrate the high-energy components, resulting in a fuel with a significant calorific value, suitable for combustion in specialized facilities like power plants or cement kilns.
Analyzing the Options
Let's examine the provided options in the context of the definition of RDF:
| Option | Description | Analysis |
|---|---|---|
| 1 | Segregated high calorific fraction of processed MSW | This option accurately describes RDF. RDF is derived from waste that has been specifically selected (segregated) for its high energy content (high calorific fraction) and has undergone treatment (processed) to make it suitable as fuel. |
| 2 | Segregated low calorific fraction of processed MSW | This is incorrect. RDF specifically utilizes the high-energy components of waste. Low calorific fractions are generally not suitable for use as fuel. |
| 3 | Unsegregated processed MSW | This is incorrect. While the waste is processed, RDF specifically refers to the *segregated* combustible portion. Unsegregated waste would still contain non-combustible materials that hinder its use as fuel. |
| 4 | Unsegregated unprocessed MSW | This is incorrect. This simply describes raw, mixed municipal solid waste before any sorting or processing. RDF is a processed product designed to be a fuel source. |
Conclusion on RDF
Based on the analysis, Refuse Derived Fuel (RDF) is characterized by being derived from the segregated, high calorific fraction of waste that has been appropriately processed. This ensures it has consistent properties and a suitable energy content for use as fuel, contributing to sustainable waste management practices.
Important Questions from Disposing of Sewage Effluents
Self-purification of running streams may be due to:
Which of the following retards the self-purification of stream?
Which of the following gives decreasing order of sewer size (in terms of diameter)?
Which of the following statements with respect to characteristics of solid waste is correct?
The normal balanced condition of the stream will be restored by the process called:
