Water Purification System at Nanjaigarahalli Government School

Develop School Team Visit to Nanjaigarahalli School

The well-being of humans depends on the quality of drinking water. Consumption of water containing excess fluoride over a long period results in fluorosis. Currently, many districts of Karnataka are endemic for fluorosis. Chikkaballapura is one of the districts, that is about 60 kilometers away from Bangalore.

Groundwater plays an important role in the economy of the farmers of the Chikkaballapura district. This district is popularly known as the land of Silk and Milk. Agriculture was mainly dependent on irrigation facility by numerable widely distributed tanks during earlier days. Due to drought situations, farmers are now mainly depending upon ground water or bore wells for their irrigation needs. There are about 29000 borewells in the district, which reflects on the dependency of farmers on ground water. Over exploitation of ground water is seen in parts of Bagepalli taluk and all the other taluks in this district. Fluoride concentration of more than 2mg/liter is reported from every taluk of this district.

Develop School team recently visited a government school in Nanjaigarahalli in Gowribidanur taluk to conduct ground water test which is coming out of bore well. And we found that fluoride content is more than 2.5mg/liter, which is dangerously above the permissible limit of 1mg/liter. Please download full test report conducted by Mr. Muralidhar at FCS

Particles found in school drinking water that are dangerously above the acceptable level

 Desirable or Permissible as per IS: 10500/2012Permissible limit only in case of absence of alternate sourceResult
Total Dissolved Solids mg/liter, Max5002000865.0
Fluoride mg/L, Max1.01.52.53
Total Alkalinity mg/L, Max200600458.0
Total Hardness mg/L200600396.0

There are about 125 children studying in this school from 1 to 7th grade. Their only source of water being the groundwater with high fluoride content, the school children of Nanjaigarahalli, suffer from dental and skeletal fluorosis that causes yellow deposits, a decay of teeth, and joint pains among elders. After years of consuming fluoride, when the spinal cord starts compressing and even before the cause of disability is known, the patient is paralyzed. This is a shocking condition in some fluoride-intense districts like Tumkur, Kolar, and Chikkaballapura where many people in a few villages have spinal cord-related diseases.

After testing the groundwater our team decided to go ahead to provide 1000 liters/day capacity reverse osmosis(RO) water purification system in association with FCS and Malnad College of Engineering (MCE) Alumni. School teacher Mr. Nagesh.T.Koppalu, Mr. Ramakrishna Reddy and local leaders are coordinating with our team for this project. Our friend and an expert in water treatment project Mr. Muralidhar(http://www.fluidcontrolsystem.com) is helped throughout this project including visiting the school and also to analyze the ground water. His company is also working with our team to install the RO system.

What is Reverse Osmosis

Reverse osmosis is a process of separation that uses water pressure to force the source water through a semi-pervious membrane that retains the solid contaminants on one side while allowing water to pass on to the other side. This membrane is effective at removing anything that is bigger than a water molecule. The reverse osmosis process removes fluoride, sodium, sulfate, nitrate, iron, zinc, mercury, lead, arsenic, chloride, and cyanide, along with a few other water contaminants.

Once the water plant is functional it can generate 1000 liters (50 liters per hours) of clean and fluoride free drinking water per day, that is sufficient for all(125) the children of this school.

Estimated completion date

Our plan is to install the RO plant by the end of September 2016 or early October 2016. It will take about 4 to 6 weeks to complete the installation. Hopefully, the project will be completed by the end of October 2016 or mid-November 2016


1. Mr. Muralidhar from FCS http://www.fluidcontrolsystem.com
2. Malnad College of Engineering (MCE) ALUMNI (Socio Active Group)

PS: Above 2 donors were initially planned to install the purifier after doing the ground water test, but they couldn’t get the permission letter from the local authority. As a result of this DS team sought government’s help using government money.

Current status of the project

1. Completed the ground water test and analysis.
2. Now we are in the process to get an approval letter from the education department or from the concerned government authority to install the RO water purification system
3. The project is stopped due to some internal issues.
4. Develop School team continued to follow up. Bangalore Mirror team highlighted this issue in January 2017
5. District commissioner ordered 50 liters water purifier after reading the article in Bangalore Mirror
6. 50 liters water purifier is now installed with the help of Nanjaigaranahalli Panchayath on Feb 10, 2017, using government money.

Thanks to Bangalore mirror reporter, Muralidhar (FCS), Nagesh, Dr. Sandeep and to entire DS team to make this happen.

Clean Drinking Water at Nanjaigaranahalli

3 thoughts on “Water Purification System at Nanjaigarahalli Government School

  • Very nice initiative. If such local problems are locally solved, sustainable development will be a reality. There are two issues which school teachers should give attention to. RO systems produce concentrated waste. Disposal of this is important. Second is maintenance. The school /local body should be responsible for maintenance. Kudos to the team.

Leave a Reply