EN3001 Functional Design of Rainwater Harvesting Systems Syllabus:

EN3001 Functional Design of Rainwater Harvesting Systems Syllabus – Anna University Regulation 2021

COURSE OBJECTIVES:

• To meet the increasing demand of water.
• To avoid the flooding of roads.
• Supplement domestic water needs.
• To raise the underground water table.

UNIT I GENERAL

Objectives of rainwater harvesting – principles, importance and issues. Water harvesting techniques – classification based on source, storage and use. Runoff harvesting – short-term and long – tem techniques. Short – term harvesting techniques

UNIT II GROUNDWATER

Over-exploitation of groundwater – Need for artificial recharge and rainwater harvesting – types of wells – drilling technology – design, construction and development of water wells: dug wells and bore wells; direct and reverse rotary drilling; cable tool and DTH hammer drilling; gravel packing and well development procedures.

UNIT III ARTIFICIAL RECHARGE STRUCTURES

Types of pumps – various artificial recharge structures: recharge ponds – recharge pits – percolation ponds – basin spreading – surface and subsurface dykes – recharge wells – recharge borewells. Rainwater harvesting in urban areas : RWH structures – design – construction.

UNIT IV MAINTENANCE AND MONITORING OF RWH

Estimation of probable runoff from an area including from roof tops – maintenance and monitoring of RWH structures. Study of benefits – effects on local groundwater environments – remedial measures. Recycling of domestic water – sources of water for recharge in urban areas.

UNIT V CONSTRUCTION AND ESTABLISHING RWH

Precautions for source, construction and establishing RWH structures. Exploration techniques and selection of artificial recharge zones – electrical resistivity investigations using horizontal profiling and vertical sounding techniques: interpretation of resistivity data in terms of subsurface geology.

TOTAL: 45 PERIODS
COURSE OUTCOMES

At the completion of the course,
CO1 The student will be able to understand the importance rainwater harvesting Systems
CO2 The students shall be aware of the issues related to over exploitation of groundwater
CO3 Apply knowledge and skills to design various rainwater recharging structures
CO4 Understand the issues pertaining to monitoring and maintenance of rainwater harvesting structures.
CO5 Gain an overarching understanding of construction and estabilishment of rainwater harvesting structures.

REFERENCES

1. M. L. Munjal, 2014, Noise and Vibration Control, World Scientific Press: Singapore
2. E. G. Williams, 1999, Fourier Acoustics: Sound Radiation and Near Field Acoustic Holography, Academic Press: New York