organic pollutants. major reduction of bod and cod is carried out in secondary treatment. aeration tank: effluent from settler was aerated in aeration tank which was carried out by sucking atmospheric air with special centrifugal pump along with effluent. the effluent along with air was re-circulated...
korea (cepa) comprehensive economic cooperation agreement between india and malaysia (ceca) preferential trade agreement between india and mercosur (pta) agreement of cooperation with nepal to control unauthorised trade treaty of transit between government of india and government of nepal revised treaty...
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