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10th International Rainwater Catchment Systems Conference
"Rainwater International 2001"
Mannheim, Germany - September 2001

Section 3: Rainwater: Quality Issues

Paper 3.5

Bacteriological Quality of Water in DRWH

Padma Vasudevan, Mamta Tandon
Centre for Rural Development & Technology
Indian Institute of Technology, Delhi
Hauz Khas
New Delhi-110016

Chitra Krishnan
Department of Applied Mechanics
Indian Institute of Technology, Delhi
Hauz Khas,
New Delhi-110016

Terry Thomas
Development Technology Unit
School of Engineering
University of Warwick
Coventry, CV4 7AL


In spite of the fact that RWH is an age old traditional practice for collecting water (Dying Wisdom, 1997), certain research inputs are needed for reviving the technology to suit the modern habitats. In this paper the results on the following aspects are presented:

  1. Comparison of testing procedures for bacteriological quality: correlation between H2S strip test and MPN. 
  2. Effect of roofing material on water quality from four different types of roofs, with and without tree hangings over them. 
  3. Co-relations between bacteriological quality of water and amount of roof washings collected in flushes.

PDF of full document (4pp, 38kb)

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