Chapter route

Wastewater Story

This chapter page turns the high-level subject view into an ordered learning slice, with direct links from curriculum items into topic and skill detail.

Ordered curriculum items

Each curriculum item can now route into topic and skill-level detail.

What Is Wastewater?

Recognize sewage sources and pollutants such as soap, oils, food waste and pathogens.

Topic: Wastewater Sources Skill: Identify sources and pollutants in wastewater

From Drain to Treatment Plant

Trace wastewater from homes through drains and sewers to treatment plants.

Topic: Sewage System Skill: Describe drainage and sewerage systems

Cleaning Wastewater

Explain screening, grit removal, sedimentation, aeration, sludge removal and disinfection.

Topic: Wastewater Treatment Skill: Sequence wastewater treatment steps

Sludge and Biogas

Describe sludge digestion, manure formation and biogas production.

Topic: Sludge and Biogas Skill: Explain treatment and use of sludge

Sanitation and Public Health

Explain why toilets, clean drains and safe disposal reduce disease spread.

Topic: Sanitation and Health Skill: Connect sanitation with disease prevention

Drain-Friendly Habits

Choose safe disposal methods for oils, medicines, plastics and chemicals.

Topic: Responsible Disposal Skill: Identify what should not enter drains

Sanitation Solutions

Explain septic tanks, composting toilets and on-site sanitation at a basic level.

Topic: Alternative Sanitation Skill: Describe low-cost sanitation options

Reasoning with Wastewater

Use treatment-step and sanitation knowledge to solve real-life pollution and health questions.

Topic: Application and Reasoning Skill: Analyze wastewater treatment and sanitation scenarios

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