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Source Segregation of Waste

PYQs

8

Articles

1

Momentum

21

Phase IFoundation

Background

Overview

Highlights a critical operational aspect of environmental governance, citizen responsibility, and the practical challenges and benefits of implementing sustainable waste management practices.

Source segregation is the practice of separating different types of waste (e.g., wet, dry, hazardous) at the point of generation, typically by households and bulk waste generators. It is a foundational step for effective solid waste management, enabling better recycling, composting, and reduced landfill burden.

Phase IIStatic core

Facts & tables

Key facts

Mandate

The Solid Waste Management Rules, 2026, make source segregation mandatory for all waste generators.

Benefits

Leads to cleaner recyclable materials, reduces the processing load on ULBs, improves the quality of compost, and enhances resource recovery.

Challenges

Requires significant behavioral modification campaigns, sustained public participation, and adequate infrastructure for separate collection.

Economic Impact

Reduces operational costs for ULBs by minimizing manual separation and increasing revenue from recyclables.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaWaste Management & Water Pollution
Conceptual areaEnvironmental Law & Policy
Conceptual areaWelfare Schemes & Social Policies

Reference table

Institutions & roles

BodyRole
Urban Local Bodies (ULBs)Facilitates and enforces segregation
Citizens/Waste GeneratorsPrimary implementers of segregation
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Statement-based questions

Prelims angle: Factual recall

Quick revision

  • Separating waste at generation point (wet, dry, hazardous).
  • Mandatory under SWM Rules, 2026.
  • Benefits: better recycling, composting, reduced landfill.
  • Challenges: public awareness, behavioral change, collection infrastructure.
  • Reduces ULB costs and increases resource value.

High-confidence PYQs

2025Multi-statement analysis, Conceptual understanding

Consider the following statements: Statement I: Activated carbon is a good and an attractive tool to remove pollutants from effluent streams and to remediat...

Environment & EcologyOpen question

Consider the following statements: Statement I: Circular economy reduces the emissions of greenhouse gases. Statement II: Circular economy reduces the use ...

Environment & EcologyOpen question
2025Multi-statement analysis, Conceptual understanding

Consider the following statements: Statement I: Activated carbon is a good and an attractive tool to remove pollutants from effluent streams and to remediat...

Environment & EcologyOpen question

Consider the following statements: Statement I: Circular economy reduces the emissions of greenhouse gases. Statement II: Circular economy reduces the use ...

Environment & EcologyOpen question
2024Factual recall, Multi-statement analysis

Consider the following materials: 1. Agricultural residues 2. Corn grain 3. Wastewater treatment sludge 4. Wood mill waste Which of the above can be used a...

Environment & EcologyOpen question
2023Statement-based questions, Conceptual understanding

With reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements: 1. Biofilters provide waste treatment by r...

Environment & EcologyOpen question

Consider the following statements: 1. Carbon fibres are used in the manufacture of components used in automobiles and aircrafts. 2. Carbon fibres once used c...

Science & TechnologyOpen question
2023Statement-based questions, Conceptual understanding

With reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements: 1. Biofilters provide waste treatment by r...

Environment & EcologyOpen question

Consider the following statements: 1. Carbon fibres are used in the manufacture of components used in automobiles and aircrafts. 2. Carbon fibres once used c...

Science & TechnologyOpen question
2019Statement-based questions, Factual recall

As per the Solid Waste Management Rules, 2016 in India, which one of the following statements is correct?

Environment & EcologyOpen question
2015Statement-based questions, Factual recall

With reference to bio-toilets used by the Indian Railways, consider the following statements: 1. The decomposition of human waste in the bio-toilets is init...

Environment & EcologyOpen question
2013Factual recall, Multi-statement analysis

Due to improper/indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste? 1. Ber...

Environment & EcologyOpen question

Topic timeline

Waste Management & Water PollutionEnvironmental Law & PolicyWelfare Schemes & Social Policies
Prelims 2013· Factual recall, Multi-statement analysis

Due to improper/indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste? 1. Ber...

Open question
Prelims 2015· Statement-based questions, Factual recall

With reference to bio-toilets used by the Indian Railways, consider the following statements: 1. The decomposition of human waste in the bio-toilets is init...

Open question
Prelims 2019· Statement-based questions, Factual recall

As per the Solid Waste Management Rules, 2016 in India, which one of the following statements is correct?

Open question
Prelims 2023· Statement-based questions, Conceptual understanding

With reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements: 1. Biofilters provide waste treatment by r...

Open question

Consider the following statements: 1. Carbon fibres are used in the manufacture of components used in automobiles and aircrafts. 2. Carbon fibres once used c...

Open question
Prelims 2023· Statement-based questions, Conceptual understanding

With reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements: 1. Biofilters provide waste treatment by r...

Open question

Consider the following statements: 1. Carbon fibres are used in the manufacture of components used in automobiles and aircrafts. 2. Carbon fibres once used c...

Open question
Prelims 2024· Factual recall, Multi-statement analysis

Consider the following materials: 1. Agricultural residues 2. Corn grain 3. Wastewater treatment sludge 4. Wood mill waste Which of the above can be used a...

Open question
Prelims 2025· Multi-statement analysis, Conceptual understanding

Consider the following statements: Statement I: Activated carbon is a good and an attractive tool to remove pollutants from effluent streams and to remediat...

Open question

Consider the following statements: Statement I: Circular economy reduces the emissions of greenhouse gases. Statement II: Circular economy reduces the use ...

Open question
Prelims 2025· Multi-statement analysis, Conceptual understanding

Consider the following statements: Statement I: Activated carbon is a good and an attractive tool to remove pollutants from effluent streams and to remediat...

Open question

Consider the following statements: Statement I: Circular economy reduces the emissions of greenhouse gases. Statement II: Circular economy reduces the use ...

Open question

It’s time for Tamil Nadu to segregate solid waste at source

05 Jul 2026 · Source segregation is the mandatory separation of waste at its origin, crucial for efficient SWM by improving recycling and composting, though it faces challenges in public compliance and infrastructure.

Read article

Related topics

Current topic

Source Segregation of Waste

Often confused with

Solid Waste Management (SWM) in India

Open notes

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