Chromium is a pollutant present in tannery wastewater, its removal is necessary for protection of the environment. Penisetum purpureum, Brancharia decumbens and Phragmites australis were grown hydroponically in experimental gravel beds to determine their potential for the phytoremediation of solutions containing 10 and 20 mg Cr dm. These concentrations, similar to tannery wastewater after initi...

During the last two decades, and particularly during the last few years, the environmental sector has shown a largely growing interest in the treatment of different types of water and wastewater by electrocoagulation (EC). The aim of this work was to review studies, conducted mainly during 2008-2011, on the wide and versatile range of feasible EC applications employed in the purification of dif...

We study pollution in the Ganges river caused by tanneries city of Kanpur India. Two tanneries, A and B, are located on same bank Kanpur. Both produce leather production requires use chemicals that toxic to humans. Tannery is upstream from tannery B. A's depends directly only labor but B's use, chemical waste generated A, natural absorbing capacity Ganges. In this setting, we accomplish three t...

  A novel rotating disc electrochemical (RDE) reactor has been developed to treat tannery effluent. Experiments were carried out in batch, batch recirculation, and once-through modes in the reactor covering wide range of operating conditions. The effect of current density (i), cathode rotation speed (R), electrolysis time (t), influent pH, and electrolyte flow rate (Q) on the pollutant removal ...

A simple, rapid and sensitive method was proposed for online determination of tannic acid in colored tannery wastewater by automatic reference flow injection analysis. Based on the tannic acid reduction phosphotungstic acid to form blue compound in pH 12.38 alkaline solutions, the shade of blue compound is in a linear relation to the content of tannic acid at the point of the maximum absorption...

Diastolic blood pressure was viewed as a generic indicator of aging, and its association with cumulative work time was studied after controlling for age as a potential confounding factor. The study was conducted among production line workers at a Brazilian tannery in July 1993. The association between diastolic blood pressure and cumulative work time was verified by fitting a second-order linea...

A study was conducted to evaluate the feasibility of Activated Sludge Process (ASP) for the treatment of tannery wastewater and to develop a simple design criteria under local conditions. A bench scale model comprising of an aeration tank and final clarifier was used for this purpose. The model was operated continuously for 267 days. Settled tannery wastewater was used as influent to the aerati...

The effect of tannery wastewater on the biochemical constituents of fresh water bivalve, Lamellidens marginalis was studied. The acute toxicity study was carried out to determine lethal concentration. Bivalves were exposed to different sublethal concentrations of tannery wastewater for 10 and 20 days. The biochemical changes in the protein, glycogen, lactic acid and cholesterol, in the tissues ...

Investigates anaerobic twostage treatment of tannery wastewater. This results in a mean chemical oxygen demand (COD) removal of 60 per cent for tannery B and more than 70 per cent for tanneries A and C with CODo = 5,710mg l–1 and mean detention time held at 3.5 days. Gas production was small, rating an estimated 75l kg–1 CODo with CODo = 5,710mg l–1. Tests simultaneously the influence of qualit...