Anaerobic treatment 1 Biological treatment systems for water 1 Dissertation, Academic (Ph.D.) 1 Drinking water contamination 1 Drinking water- bacteria 1 Drinking water-Contamination-India-Plachimada region 1 Hindustan Coca-Cola Beverages-Private limited-Public relations-India-Plachimada region 1 Hydrobiology 1 Thesis (Ph.D.) Environmental science 1 Water security-India-Plachimada region-Pictorial works 1 drinking water contamination 1 pathogens 1 physico chemical treatment of water 1 quality assessment of water 1 waste water treatment 1 water basin management 1 water quality assessment 1