Accepted Papers - 3.pdf - UNESCO

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National Seminar on Rainwater Harvesting and Water Management 11-12 Nov. 2006, Nagpur 69. Design and Development of a Roof-Top Rainwater Harvesting Structure for Drinking Water Supply *Lala I. P. Ray **S. Senthilvel Abstract In the present era of virtually ‘mining’ of the ‘liquid gold – WATER’ in rural areas for increased agricultural production and meeting the acute water shortage in urban areas for drinking and industrial water needs, rainwater harvesting seems to be a feasible solution. The present study focuses on the role of rooftop rainwater harvesting (RTWH) to supplement the local water demands of Tamil Nadu Agricultural University (TNAU) campus, as a representative unit of evaluation. The micro level experimentation conducted on a 624 m 2 projected area resulted in encouraging results, indicating a good potential for harvesting rainwater. The workshop complex, selected as the study plot, could effectively generate 8.6 m 3 of water per annum from its rooftop during the rainy season and the volume of water collected was found to cater to the water requirement of the hydraulics laboratory, drinking water needs, washing water needs and the consumptive water use requirement of the Theme park. A harvesting structure consisting of a collecting unit, a filtering unit and a storage tank was designed to store the rain water for drinking purpose. The designed structure works well to supply the drinking water demand of the workshop complex. Key Words: Roof-top rainwater harvesting, Collecting unit, Filtering unit, Storage structures. � � � *Indian Institute of Technology, Kharagpur - 721302 **Professor, Tamil Nadu Agricultural University, Coimbatore - 641003 Research Scholar, Agricultural and Food Engineering Department, IIT Kharagpur-721 302. West Bengal Email: lalaipray@agfe.iitkgp.ernet.in 394
National Seminar on Rainwater Harvesting and Water Management 11-12 Nov. 2006, Nagpur 70. Rainwater Harvesting System – A glance at Operation & Maintenance *Dr. A. I. Wasif **Mr. M. B. Chougule ***Mr. B. R. Kulkarni Abstract The application of an appropriate rainwater harvesting technology can make possible the utilization of rainwater as a valuable and in many cases, necessary water resources. Rainwater harvesting is necessary in areas having significant rainfall but lacking any kind of conventional, centralized government supply system and also in areas where good quality fresh surface water or ground water is lacking. Rainwater harvesting systems require few skills and supervision to operate. Major concerns are the prevention of contamination of tank during construction and while it is being replenished during a rainfall. Contamination of water supply as a result of contact with some material can be avoided by the use of proper material during construction of system. The main sources of external contamination are pollution from air, bird and animal droppings and insects. Bacterial contamination may be minimized by keeping roof surfaces and drains clean but can not be completely eliminated. If the water is to be used for drinking purposes, filtration, chlorination or disinfection by other means is necessary. This paper focuses on various ways of operation and maintenance of rainwater harvesting system so that water can be stored safely and can be utilized for drinking purpose. � � � *Dr.A.I.Wasif, Dy.Director, T.E.I. Ichalkaranji Email: aiwasif@gmail.com **Mr. M.B. Chougule, Sr.Lecturer, T.E.I. Ichalkaranji Email: mbcdkte@gmail.com ***Mr.B.R.Kulkarni, Lecturer, T.E.I. Ichalkaranji, Email: bhupesh.kulkarni@gmail.com 395
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National Seminar on Rainwater Harve
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once subsoil water starts draining
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The plantation process starts with
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DOLASANE , SANGAMNER RANGE I, SANGA
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Table 1. Present land use of waters
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Page 73 and 74: CASE STUDY The Salem Municipality i
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Page 93 and 94: Conclusions The process of rainwate
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the result of the success they have
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un off from one hill and conveying
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harvest will certainly solve the wa
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If the rain precipitation in a vill
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echarging , A study of world wide f
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these villages, the people themselv
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improve the quantity and the qualit
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The opinion of the public for the q
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in fact the base of energy in Tajik
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end of 80’s building of Roghun’
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consumption of oil on 11 times more
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change waterness charge o Vakhsh m
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are following: a) Compound of const
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for subsequent use of water for irr
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years. These beels can also be conv
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ody through water conservation and
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contribute to increased fish produc
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Figure 1 : Map of Bangladesh showin
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end uses and the intentional manage
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INTRODUCTION Indian water sector is
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ut definitely they are not substitu
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having the height greater than 50m
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ain. There is no conducive evidence
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chase food self sufficiency as a go
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REPORTB OF WORLD COMMISION ON DAMS
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Accepted Papers - 3.pdf - UNESCO

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