103
Guidelines for drinking-water quality
গ্রন্থ
104
106
Pathogens in drinking water sources
গ্রন্থ
108
Drinking water treatment , sediment filtration
গ্রন্থ
109
Slow sand filtration and diatomaceous earth filtration for small water systems
গ্রন্থ
110
111
112
Two-Step granular activated carbon filtration in drinking water treatment
গ্রন্থ
114
Drinking water treatment , water softening (Ion exchange)
গ্রন্থ
115
116
Arsenic removal from drinking water by Ion exchange and activated alumina plants
গ্রন্থ
117
Drinking water treatment , reverse osmosis
গ্রন্থ
118
Process water production from river water by ultrafiltration and reverse osmosis
গ্রন্থ
119
Potassium permanganate as pre-oxidant in a reverse osmosis water Plant
গ্রন্থ
120
Chlorine in water disinfection
গ্রন্থ