<i>No effluent treatment! </i>
Photo: Munem Wasif / driknews
As river pollution around the city has already turned critical, it should be stopped immediately for the betterment of this mega city. Most of the industries of Dhaka are located near the rivers and 70% of them have no Effluent Treatment Plant (ETP) to treat industrial wastewater. As a result, factories are disposing of effluents without any treatment to the nearby river. Since industrial wastewater possesses high amount of heavy metal (cadmium, aluminium, zinc), non-biodegradable compounds, high alkalinity, high suspended solid, high Biological Oxygen Demand (BOD), the river ecosystems are becoming critically endangered. Data from NGOs and other monitoring authorities show that Buriganga, Shitalakhya, Turag, Balu receive about 1.9 million cubic meters of untreated water on daily basis which is alarming for aquatic life and human health. Effluent treatment technologies have been developed significantly. Radiation induced treatment technology is a viable solution for treating dangerous effluents originating from textiles, tanneries and other industries.
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