The goal of this study was to assess the phytoremediation potential of transgenic Indian mustard plants. The increase in metal accumulation as a result of these genetic engineering approaches is typically two-to-threefold more metal per plant, which potentially enhances phytoremediation efficiency by the same factor. The significance of this finding is that it is the first to demonstrate an enhanced capability of transgenic plants to phytoextract environmental soil containing a mixture of metals.
Due to increasing population, industrialization and urbanization a huge amount of solid waste is generated daily in cities and towns. In Guwahati city, the solid waste generated is disposed by Guwahati Municipal Corporation in the dumping site.
The huge amount of solid waste generation and their disposal has become a major case of concern at present. In Guwahati city about 500 metric tonnes of solid wastes are generated daily. The solid wastes collected from the various parts of the city has different heavy metal content dependeing upon the nature and type of solid wastes. Heavy metal contamination results from anthropogenic as well as natural activities and creates health hazards when entered the food chain through their application to soil.
In this modern world of advanced techniques, sewage treatment works are considered to be one of the most popular procedures carried out to use the treated wastewater for agricultural purposes or to dispose off on to the land. The primary objective of this study is to design a Sewage Treatment System for Sri Satya Sai Urban Development Authority (SUDA) in Andhra Pradesh and studying the possibilities for usage of treated wastewater for irrigation. The study area, Puttaparthy being a pilgrim center attracts people all over the world and during some special occasions the place gets over crowded.
Pot experiments was conducted to observe the impact of CdCl2, CuCl2, Pb(NO3)2 and ZnCl2 on chlorophylls of Brassica juncea, Brassica rapa, Lactuca sativa, Lepidium sativum and Daucus carota. Present studies suggest that depletion of essential micronutrients like Zn and Fe; or Zn and Cu; or Fe and Mn in the plant body after heavy metal accumulation may be one of the causes for chlorophyll loss.
Total heterotropic plate count (HPC), fecal coliform (FC), Escherichia coli (EC), Salmonella and Shigella were estimated in water samples collected from 21 bore wells and 15 hand pumps in and around Kanpur district, during early and post monsoon which revealed the unsanitary condition of water sources.
An oil spill was simulated in microcosms in the laboratory using phytoplankton assemblage collected from Versova, Mumbai. Bombay High Crude oil, water-soluble fraction and water-dispersed fraction were added to respective tanks. Their effect was investigated on various parameters like primary productivity, growth and biomass of the phytoplankton at different time intervals.
A study was conducted in Eloor Industrial Area of Ernakulam district of Kerala to assess the level of environmental pollution by pesticide manufacturing factories in this region. Samples like blood, urine, dung and milk were collected from cattle belonging to this area and were analysed for DDT residues using the Gas Liquid Chromatography.
Bioremediation seems to be a good alternative to conventional clean-up technologies. Bioremediation has advantage over conventional physical and chemical methods such as precipitation, adsorption, electrodialysis and reverse osmosis. The aim of this work was to remove ammonia, nickel and hexavalent chromium from synthetic solutions by bioremediation technique.
