Herbal Medicines for Human Use

Process of Wastewater Treatment Plant

PROCESS OF WASTEWATER TREATMENT PLANT : Wastewater enters the treatment plant First it goes through a fine screen, next to aerated grit chamber, and then enters the primary clarifier. Sludge settled in the primary clarifier is sent to the fermenters and then to digesters. After the primary treatment, wastewater flows into (BNR) bioreactors. The activated sludge is separated in the following secondary clarifier. The clear effluent flows into Ultraviolet (UV), then to River. Settled activated sludge in the secondary clarifier is pumped back to BNR. Excess sludge is pumped into the dissolved air floatation (DAF) unit for thickening. Wastewater is collected in sanitary sewers (a complex network of underground pipes). Upon reaching the treatment plant, the wastewater flows through a series of treatment processes which remove the wastes from the...

Water Analysis : To determine the potability of water by MPN Test

AIM : To determine the potability of water by MPN Test INTRODUCTION: Water which receives animally & human which form a primary source of water borne disease. Direct testing procedures capable of detecting & quantifying the full spectrum of pathogens & identifying their source is time consuming process because of their variable occurrence, survival rate & origin; hence an indicator system has been identified as a best method for evaluating the microbiological quality of water. A fecal coli form test is considered as most reliable test available for detesting the presence of contamination of an intesting origin, the coli form group comprises all aerobic & facuttative an aerobic, gram –ve non spirulating, rod shaped bacteria that ferment lactase with gas format within 48hrs at 35 ˚c. REQUIREMENTS: Single strength of sactose bile growth (10 ml) -10 test tube Double strength of sactase bile growth (10 ml) - 5 test tube Water sam...

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