Suggest a cost-effective sewage disposal system where underground sewerage systems and refuse disposal systems are not available. [5 MARKS]

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Solution

Explanation:5 Marks

The onsite sewage disposal systems can be used. Such as septic tanks, chemical toilets, composting pits. These are suitable for places where there is no sewerage system. Hygienic on-site human waste disposal technology can be used. In these systems, toilets do not require scavenging. Excreta from the toilet seats flow through covered drains into a biogas plant. The biogas produced is used as a source of energy.

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Question 9.

Suggest two alternative arrangements for sewage disposal where there is no sewerage system.

Question 12

State whether the following statements are True or False. In case a statement is false, write the correct statement.
1. Sewage is a solid waste which causes water pollution and soil pollution.
2. Used water is wastewater.
3. Wastewater could be reused.
4. Where underground sewerage systems and refuse disposal systems are not available, the high-cost onsite sanitation system can be adopted.

Low cost onsite sewage disposal systems includes:

Q. Identify the low-cost onsite sewage disposal system.

Q. Which amongst the following is not an example for onsite sewage disposal system?

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