Volume No. 7 Issue No.: 1A Page No.: 361-367 July-September 2012

 

STUDY ON LOCALLY AVAILABLE COAGULANT (Moringa Oleifera) FOR REMOVAL OF TURBIDITY FROM WATER

 

Jadhav M. V.*1 and Mahajan Y. S.2

1. Department of Civil Engineering, Sanjivani Rural Education Society

 

Received on : April 02, 2011

 

ABSTRACT

 

Turbidity is a principal physical characteristic of water. It is caused by suspended matter or impurities that interfere with the clarity of the water. These impurities may include clay, silt, finely divided inorganic and organic matter, soluble colored organic compounds, plankton and other microscopic organisms. Excessive turbidity or cloudiness, in drinking water is aesthetically unappealing and may also represent a health concern. Turbidity can provide food and shelter for pathogens. If not removed, turbidity can promote regrowth of pathogens in the distribution system, leading to waterborne disease outbreaks, which have caused significant cases of gastroenteritis throughout the world. The high cost of treated water makes the majority people in the rural areas to prefer readily available sources which are normally of low quality exposing them to waterborne diseases. This study is carried out to check the effectiveness of powder extracted from Moringa oleifera seeds which is commonly available in most the rural areas of India and other countries. Study was done using completely randomized loading doses of 2, 4, 6, 8, 10 and 12 g/ of the powder processed from Moringa oleifera seeds as coagulant. A synthetic turbid water sample was prepared for this study from Kaolin clay of low turbidity (10-40 NTU), medium turbidity (60-150 NTU) and high turbidity (more than 250 NTU), pH and turbidity were determined for all the samples. Percentage turbidity removal is high for medium and high turbid water. There was negligible change in pH after addition of coagulant. The pH values obtained for the treatments were in the recommended range (7.34 to 7.47) set by Indian standard (IS10500) and WHO.

 

Keywords : Turbidity, Water, Powder, Dose, Moringa oleifera, Coagulant

 

 

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