Treatment of Karnaphuli Paper Mills effluent was carried out by coagulation precipitation method.

Following the commissioning of Tertiary treatment plant at IOCL, Haldia, Doshion Limited has changed the outlook of the petrochem industry towards waste water management. One of its kind in the world, this plant recycles waste water to feed high pressure boiler thus nullifying the myth that waste can't be as good as fresh. Doshion Veolia executed terminal tertiary treatment plant using DMF, ultrafiltration, reverse osmosis and mixed bed deionization.

The design proposed two parallel 1000 m3/day effluent treatment schemes to mitigate fluoride level and reduce sulphates and hardness.

Two sewage treatment plants have been installed at the plant and at the Urjanagar residential colony respectively.

At AstraZeneca we are proactively addressing the problem of pharmaceuticals entering the environment as a result of our
manufacturing discharges (Nature 476, 265; 2011). (Correspondence)

Discharges from pharmaceutical factories contaminate rivers on three continents.

The aerobic pollution load (COD and BOD) removal of spent sulphite liquor using activated porous spherical charcoal prepared from neem oil cake both as an adsorbent and fluidizing particle was studied in a fluidized-bed reactor.

The objective of this study was to investigate the removal of reactive orange 16 (RO16) dye from synthetic wastewater by the adsorption on cocoa (Theobrama cacao) shell activated carbon (CSAC).