Odisha School Girl Wins Award At Google Science Fair For Developing Water Purifying Agent

The Logical Indian

September 23rd, 2015 / 3:24 PM

Source: googlesciencefair

Lalita Prasida Sripada Srisai, a 13-year-old student of class 9th in DPS Damanjodi in Koraput district of Odisha, has made India proud by winning the ‘Community Impact Award’ at the prestigious Google Science Fair in California on Tuesday. Winning the award in the 13-15 years age group, she received 10, 000 USD as the prize money. She is also set to be supported by Google for a year to build her project.

Lalita developed a low cost bio-absorbent based water purifier. It functions mainly on waste corn cobs. The Corn cob is the least utilized part of the maize plant. It is a very important agricultural waste. Having high mechanical strength, rigidity and porosity, corn cob is a suitable absorbent. This enables contaminants like oxides of salts, detergent, suspended particles, coloured dyes, oil and grease to be absorbed in the surface of the corn cobs. Some of the heavy metals are also absorbed.

“If the drain pipe of the household is connected to a chamber having different layers of corn cobs in partition layers or to an S-trap pipe having corn cobs, it will separate about more than 70-80 % of contaminants including suspended particles from the waste water,” says the report published about her project on the Google Science Fair website.

corn-field-snaps-026
This cheap and eco-friendly way of purifying water will open up a new market for corn corbs which are otherwise discarded as bio-waste.
To conduct the experiment, Lalita had collected the cobs from a nearby farm and sun dried them for a month. To make a hole at the centre of one cob, the pith was removed. In it 50 ml of domestic effluent collected from a kitchen drain pipe was poured. This was allowed to pass through the hole. Thereafter, the collected filtrate was tested for purity. This was the pilot stage.

After its successful completion, water with several added chemical impurities was through five bottles, each containing a different layer for purification. The layers had long pieces of corn cobs, small pieces of corn cobs, powdered corn cobs, activated charcoal made from corn cobs and fine sand.

The charcoal layer was observed to absorb most of the coloured substances present in the water, while the chaff layers of both long and small pieces of corn cobs absorbed the suspended particles. The powdered corn cob layer absorbed the gasoline waste.

IMG_20150516_111235IMG_20150516_111404IMG_20150516_111557_20150518122731537

Lalita’s teacher, Pallabi Mahapatro, claims that the technique can be used for immobilizing the contaminants in domestic and industrial effluents, and in ponds, reservoirs and water tanks.

For the time being, Lalita’s peers and staff at her school have been celebrating this grand victory while many are congratulating her on social media.

The Principal of DPS Damanjodi, Trinath Prasad Padhi, reveals that Lalita is also very proficient in co-curricular activities like song and dance. She is set to receive a grand welcome on her return to school through a major function.

Meanwhile, The Logical Indian community congratulates her and wishes her all the best for the next stage of building the project in the coming year!


Contributors

Written by :

Edited by :

Related Stories

Organic Farmers Kerala

Kerala’s Organic Farmers Association Wins International Award For Innovative Farming Methods

Kerala Film Rubber Plantation Worker

Daily Wage Rubber Plantation Worker’s Debut Film Wins Kerala’s Top State Award

Samay Godika

Bengaluru: Class XI Boy Wins International Science Prize, Gets Awarded 2.9 Cr Worth Cash Prize

Asma Jahangir UN Award

Pakistani Lawyer And Human Rights Activist Asma Jahangir Wins UN Award Posthumously

Sikkim Wins UN Award

Sikkim Wins UN Award For Becoming World’s First Organic State

Mobile Labs Odisha

Mobile Labs In Rural Odisha Promote Science-Based Solutions

Latest on The Logical Indian

News

Ujjwala Yojana Brings Down Cases Of Chest Congestion In Women By 20%, Uplifts 27% Poor Above BPL: Study

News

Pakistan Opens Its Airspace After 140 Days Of Balakot Strike; Indian Flights Start Using The Closed Air Routes

Get Inspired

J&K: CRPF Jawans Put In A Heroic Effort To Save A Girl From Drowning

News

Breaking Glass Ceiling: Anshula Kant Becomes First Woman To Be Appointed As MD And CFO Of The World Bank

Legal

SC Orders Doctor To Plant 100 Trees For Attempting To Murder As A Juvenile In 2004

My Story

My Story:”With Every Trafficked Girl Rescued, I Feel My Late Husband Telling Me To Keep Fighting”

x

Stories that deserve attention, delivered to your inbox!

Handpicked, newsworthy stories which deserve the attention of a rational generation.