Drinking water with natural coagulant

Government Boys Higher Secondary School Sayalgudi

Tamil Nadu











Step 1 FEEL

Some of the major problems that the children found around our schools are 1. Getting good and safe drinking water 2. Maintaining cleanliness in toilet 3. Poverty and Parent alcoholism 4. Class room cleanliness 5. Illiterate parents 6. Less involvement among parents.

Sayalgudi is a village situated in Ramanathapuram district, Tamilnadu. It is a village near sea. So drinking water is one of the main problem in our village. We get drinking water through pipe line only. Only twice in a week we are getting water through pipe line. Water coming through pipe line are not pure to drink. Even it is not pure, people are using the same pipe line water to drink. Because of poverty and lack of awareness they are continuously drinking the tainted water.

More than 10,000 people lives in and around our village have this problem. Drinking water is their main concern. Groundwater is the preferred source for drinking water. But our village Sayalgudi is near sea, there is no drinking ground water. We got water only through water supplied through pipelines. So, the water coming to our village requires treatment. Chlorine water is used by the people. But a smell is coming out from the water after the chlorine treatment. So, their main concern is to do water filteration which is coming from the pipe line and get some pure filteration.


Boiling water Filtration Distillation Chlorination Purification of water from plant seeds.

Boiling water is the cheapest and safest method of water purification. But we can boil only pure water. The water coming through pipe line is not so pure. So this method failed in our village. Filtration is one of the effective ways of purifying water and when using the right multimedia filters. But it is costly. Distillation is another method to filter water. This method is effective in removing bacteria, germs, salts and other heavy metals such as lead, mercury and arsenic. But village people have some difficulty to do this in their home. Chlorine is a powerful chemical that has been in use for many years to treat water for home consumption. This method is useful and easy to follow. But the smell coming from the water when chlorine is added with water. We search a new method of purifying water in natural way. So, we found a new way of treatment. Yes, seeds from a plant purify the water. Seeds of the plant species Strychnos potatorum which contain natural polyelectrolytes can be used as coagulants to clarify turbid waters. The seeds of the Strychnos potatorum tree ( Thethankottai in Tamil), also called the clearing nut tree are used to remove sediment or turbidity from drinking water. The seeds are rubbed on the inside of the water storage vessel and then filled with water.

Step 3DO

The seeds are powdered and put it inside the water storage vessel and then filled it with water. With in one two two hours water get purified. We took two bottles of contaminated water and put quarter tea spoon of Strychnos potatorum seed poder in one of the bottle. After one hour the water with Strychnos potatorum seed powder get purified. Water purified with a pleasant smell and tasty. After doing the initial study in school, 5 students try it in their homes. It came successfully. Then we took this project to the society. Initially we try for 20 houses. We gave training to the people belongs to that family regarding how to use the seed and purify water. Also We grow 20 saplings in our school and gave them to 20 families in our village . After doing this project 1. People started to use these seeds for filtering contaminated water. 2. Number of trees in the village increases. We plan to spread this concept through out our village. Instead of seed if we give the saplings , It will help in future and there will be a rapid increase in number of trees in the village.

Around 20 families in our village started using this natural seed treatment to purify water. Some of the village people expressed that they feel better in diabetes after using this filtered water for one month. Their blood sugar level in fasting reduced considerably for few people. Also the taste of the water also improved a lot after the filtration. Some of the people mixed with lime juice and take daily. This will improve their health. Many people shared their good reviews regarding this seed filtration.

Around 56 person from 20 families implemented this project in their home. We are planing to spread this through out the village.

Muneeswaran ( age 48 ) from Sayalgudi village: " Filtered water with the help of this seed is very sweet and smells good. My children drinking more than three litres of water daily. " Subramani (age 56) " I have sugar problems and taking medicine. After drinking this filtered water my auger level is more control than previous days. In our family we are following this. I planted the sapling in my house."

Only problem to implement this project is inadequate number of trees in sayalgudi. It is a long-term process. But we are happy to be a part of the process in the beginning stage.

15-30 Days

Clean water and sanitation

Water is a fundamental human need. Each person on Earth has the right for having clean, safe water a for drinking, cooking, and simply keeping themselves clean. But some people have less awareness in drinking safe water. They drink whatever water they got. A lack of proper sanitation services not only breeds disease, it can rob people of their basic human dignity. We want to create awareness regarding the importance of safe drinking water.

Step 4 SHARE

We shared this project in the school assembly. 860 students understood the concept. They will took it to their home. Also we are planning to share this project in local TV channel so that more than 3000 people can follow our projectml.

More than 100

1. We are planing to give awareness to all the village people (more than 10, 000) regarding drinking water using natural coagulants. 2. We are planing to give awareness regarding importance of drinking pure water. 3. Instead of purchasing seeds for purification, if we plant the tree of Strychnos potatorum it will increase the number of trees in the village and also from the tree we can get the seed. We are working for that.