Ahmedabad: For many years now, owing to high cost of toxic waste treatment, hundreds of chemical industries surrounding city have been discharging their toxic waste illegally into city drainage system in areas like Vatva, Naroda, Odhav and Narol. Ideally these units should be sending their discharge to central effluent treatment plants (CETP).
Pulp and paper mill requires a huge quantity of water and accordingly a substantial amount of spent liquor is generated. In this study purification of lignosulphonates (LS) present in spent sulphite liquor, a pulp and paper mill effluent was studied using continuous diafiltration.
The performance of various aeration systems for treatment of two different industrial liquid effluents was performed and discussed in this work. Fixed, combined and diffused systems were chosen. The samples for different detention time were tested for BOD and COD, before and after aeration for these three systems.
The adsorption capacity of riverbed sand, sawdust, vermiculite and soil for Cr (III) ions from tannery effluent has been investigated in detail in order to evaluate their possible application as filter material in reed bed treatment system. The adsorption isotherm was determined along with the effect of contact time, initial Cr concentration and pH on the efficiency of Cr removal.
Having an ISO-14001 Environmental Management System (EMS) will help enhance a firm's economic performance and at the same time improves its environmental performance. The benefits of ISO-14001 lie in cost savings through energy consumption, raw material input, waste management, environmental impact reversal as well as an improved public image.
ISLAMABAD: There is a dire need for rehabilitation of Kasur Tanneries Waste Treatment Plant. The Deputy Chairman Planning Commission Sardar Aseff Ahmad Ali expressed these views while chairing a meeting of stakeholders and government functionaries to review Kasur
This study presents decolorization of textile azo dye, Orange II, by white rot fungus, Phanerochaete chrysosporium. Orange II (85%) was removed in 7 days (optimum decolorization on 5th day at 28-30
A 6.5 MGD Gulf Coast refinery began a Novozymes Biologicals bioaugmentation program to control effluent phenol in early January 2000. Effluent phenol concentrations often exceeded 0.3 mg/L before the bioaugmentation program began.
