Leakage is one of the biggest challenges, that require special attention all across the country while we know how important water is? in the below picture, you can map your water consumption and get some idea of how much water is required to produce everyday products.
Source – Times of India [1]
According to the India water portal report in Bangalore, around 360 million liters of water go waste every day due to leakage and other reasons.
“When every drop of water has become precious in the wake of severe drought in the State, nearly 360 million liters of water go waste in terms of leakage due to old and worn-out pipelines in the city. BWSSB (Bangalore Water Supply and Sewerage Board) pumps 900 million liters of water per day (MLD) from the river Cauvery as against a demand of 1,125 MLD. It is estimated that nearly 40 percent of this goes down the drain due to leakage and other reasons, an assistant executive engineer of BWSSB said.”
How Tokyo, Japan is preventing water leakage?
In Japan, the importance of pure and hygienic water is very high and Tokyo is having one of the most effective water systems in the world.
They have zero tolerance against water leakage, and due to the commitment of repairing the water leakage in the same day has helped them to reduce the leakage rate from 20% in 1956 to 3.6% in 2006 this data is up to 2012. There is a program called the Bureau of Waterworks which aims to manage the essential water resources in effective ways, this program takes preventive measures to stop leakage before any collateral damage may happen because of the water leakage.
Beltecno Tanks plays a prominent role in Japan’s water supply model, check our Nature blog series
How does the whole process happen?
“Tokyo's water supply serves about 5 million m3 of water every day to 12 million citizens in Tokyo. The water is supplied by four rivers Tone, Ara, Tama, and Sagami, which flow into the Metropolitan area.
The untreated water is taken from these rivers and purified through three processes - coagulation, sedimentation and filtration at local plants. It is then pressurized and supplied to customers as tap water through underground pipelines. The total length of distribution pipes is about 25,262 km in 2005.” [2]
Why water leakage takes place?
Controlling the water leakage is one of the biggest challenges for Tokyo’s water system so they take it very seriously and try to start the repair of any leakage on the same day of detection, this activity majorly involved two main processes, changing the pipes and improving the pipe material. From a reference “Cast iron to ductile cast iron for distribution pipes.
In 1985 there were about 58,000 cases of leakage repair - this dropped to about 21,000 in 2005.” [2]
Main reasons for leakage
97% of leakage is because of cracked or corroded pipes in the distribution
Only 3% of cases are there due to the aging of pipes
Note - Repairing the cracked pipe by welding or by any other joining method will not solve the problem working on pipe material improvement is required
In addition to routine checks and repairs, renewal of aged pipes and replacement of lead feeder pipes with stainless steel pipes is a major priority. This has succeeded in reducing huge amounts of water over the past 50 years in Japan
In 1956 – Leakage rate of 20%
In 2006 it reduced to 3.6%
India Need to use the latest technologies to detect the leaks and a prompt action to fix those along with a robust water supply system.
Indian government is taking necessary actions to prevent this big issue and already introduced a dedicated new ministry this year after 2019 general elections called Jal Sakti, this ministry will be headed by Mr. Gajendra Singh Shekhawat MP from Jodhpur, Rajasthan and one of the dream projects of PM Modi to provide piped water to each home by 2024.
Beltecno corporation is one of the biggest Stainless Steel Tank manufacturing companies in Japan total Eight Manufacturing units in Japan and One in India along with fifteen global Sales & support offices.
[2] https://www.c40.org/case_studies/tokyo-world-leader-in-stopping-water-leakage
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