Press Esc to close
Monday 27 June 2016
News updated at 2:45 AM IST
Weather
Max: 27.5°C
Min : 19.4°C
In Bengaluru
Generally cloudy

Rainwater expert shows the way for conservation

Subhash Chanda N S, May 20, 2013, DHNS:
beating scarcity: Vishwanath displays the equipment used to recycle water. dh photo

When Bangalore Water Supply & Sewerage Board’s (BWSSB) plea to save water fell on deaf ears of citizens, City-based water expert showed the way on how a house can ensure self reliability using simple methods of water harvesting, judicious use and reuse.

BWSSB earlier this year had advocated water conservation. But their plea went in vain. While the people and BWSSB are pondering over where to get water from, Vishwanath’s house in Vidyaranyapura has a surplus of water. “A family of four on an average requires one lakh litres of water annually, which can be obtained through rain water harvesting,” Vishwanath told Deccan Herald. What makes this house unique is it does not have BWSSB connection and thrives entirely on water harvesting and conservation.

The waste water used for washing and bathing (grey water) is reused by treating it using a simple technology by passing through ‘cat-tails’ and ‘pipyrous,’ commonly available water reeds. The waste water collected in a tank is passed through these reeds grown in ferro cement tanks atop the terrace.

It is passed through a sand bed for purification and part of it is used to flush the toilet and the remaining used for gardening and recharging the ground water.

The black water (waste water from kitchen) is collected and stored in a tank and subjected to oil and grease trap before subjecting to sand filter and using it for gardening. “On an average a family of four members requires 300 litres of water which will be 9,000 litres every month. An efficient washing machine requires 40 litres of water if fully loaded. What we reuse will make a huge difference in water conservation,” explains Vishwanath. Vishwanath’s terrace has fruits, vegetables and flower plants which have been grown using waste water. He even cultivates indigenous variety of paddy on his terrace. The family is entirely dependent on rainwater for drinking and cooking, which is collected and filtered.

A recharge pit outside the house — two feet in diameter and 12-metre deep recharges upto one million litre of water. However, the water level here is depleting as there are more users in the neighbourhood.

“I am the only person who is recharging, if others join me, water level will increase substantially,” he said. The waterless toilet reduces dependency on water. The faecal matter and urine is collected separately into a bin and sent to compost bin, where it is converted into manure and used as nutrition to plants.


Go to Top

Photo Gallery
Bihar Chief Minister Nitish Kumar with RJD Chief Lalu Prasad during an Iftaar party in Patna...

Bihar Chief Minister Nitish Kumar with RJD Chief Lalu Prasad during an Iftaar party in Patna...

A sand sculpture created to congratulate Athlete Srabani Nanda for qualifying 200 mt race...

A sand sculpture created to congratulate Athlete Srabani Nanda for qualifying 200 mt race...

Players in action during a match between Bengaluru Bulls and Kolkata Warriors at Pro Kabaddi...

Players in action during a match between Bengaluru Bulls and Kolkata Warriors at Pro Kabaddi...

Illuminated Mysuru Palace seen on the eve of Yaduveera Krishnadatta Chamaraja Wadiyar...

Illuminated Mysuru Palace seen on the eve of Yaduveera Krishnadatta Chamaraja Wadiyar...

A man pushes his bike through a waterlogged road during rains in Jammu...

A man pushes his bike through a waterlogged road during rains in Jammu...

Narendra Modi interacts with Vaishali whose heart surgery was funded by the PMO...

Narendra Modi interacts with Vaishali whose heart surgery was funded by the PMO...

A Hindu devotee performs a stunt with fire during a rehearsal for the annual Rath Yatra...

A Hindu devotee performs a stunt with fire during a rehearsal for the annual Rath Yatra...

Mysuru Royal family scion Yaduveera Krishnadatta Chamaraja Wadiyar's wedding rituals, at Mysuru...

Mysuru Royal family scion Yaduveera Krishnadatta Chamaraja Wadiyar's wedding rituals, at Mysuru...

Sunny Leone at a press conference in Chennai...

Sunny Leone at a press conference in Chennai...

Senior police and CRPF officers carry the bodies of Central Reserve Police Force...

Senior police and CRPF officers carry the bodies of Central Reserve Police Force...

Copyright 2014, The Printers (Mysore) Private Ltd., 75, M.G Road, Post Box 5331, Bengaluru - 560001
Tel: +91 (80) 25880000 Fax No. +91 (80) 25880523