'Sella' rice plant effluent is one of the major environmental pollutants. The physico-chemical characterization of effluent collected from three 'Sella' rice plants revealed that the pH of the effluent varied from 6.9-7.4 and effluent was yellow brown in colour and turbid.
In developing country like India greater attention has been focused so far only on the ground water pollution. Unlike water the study on the soil contamination has not been much attended yet. In this background, it becomes necessary to study the soil contamination in Dindigul, where the soil is mostly degraded by tannery effluents.
Tannery waste disposal problem leads to environmental disharmony, which makes it one of the major industrial pollution facing the country. The tannery industries, release a lot of wastes in the form of liquid (effluent) and solid (sludge). Biological sludge is one of the wastes, which has been utilized for recycling in this research work.
Cr (VI) (Chromate) is a toxic, soluble environmental contaminant. Bacteria can reduce chromate to the insoluble and less toxic Cr (III), and thus chromate bioremediation is of interest.
Recent progress in chemical water treatment has led to the development of advanced oxidation processes (AOPs). AOPs are based on the generation of hydroxyl radicals that can often achieve oxidative destruction of compounds refactory to the conventional ozonation or H2O oxidation.
Major pollution sources in opencast coal mining are pumping of mine effluents; run off from coal stock yards, overburden dumps and haul roads; effluents from workshop and washing of heavy earth moving machinery and coal handling plant; disposal sites of sludge from oil and grease trap; domestic effluents from colony.
With a view to assessing the potential environmental impacts due to proposed activities, M/s Sarda Energy & Minerals Ltd., retained M/s Anacon Laboratories Pvt. Ltd., Nagpur to undertake Environmental Impact Assessment studies. The report envisages the assessment of the impact of various environmental components and its mitigation measures in order to minimize the adverse impacts.
In India, Grasim (an Aditya Birla Group Company) has taken the initiative to burn waste as fuel in its kilns. The company has established waste handling facilities at two units, Grasim South Cement and Vikram Cement. The company has also installed a municipal solid waste processing plant. July-Sep 2007
