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Bangladesh is a riverine country. The metropolitan Dhaka city stands on the bank of the river Buriganga. So, the river plays a vital role for the transportation, entertainment, waterways and natural resources for the capital city of Bangladesh. This river is also the effluent outlet of many industries. For this reason the river water is polluting drastically day by day. The river is also filling up with the sediment of silt. In our work the bacteriological and chemical pollution parameter of the river has been detected. Some coliform and Enteric bacteria such as Alkaligenes, Escherichia coli,...

Six textile dyes were selected for decolorization tests, these were Red ME6BL, Orange ME2RL, Turquoise Blue BGF, Turquoise Blue RSPL,Yellow 4G and Green 3R. 85 strains were isolated from the textile dyeing effluents and finally 25 strains were selected on the basis of their decolorization potentiality. Selected 25 isolates were studied in detail for provisional identification. Out of 25 isolates 21 were Gram positive and 4 were Gram negative aerobic bacteria. . Out of 25 strains only 2 strains viz. Bacillus cereus and B. subtilis were able to decolorize Red ME6BL and Orange ME2RL within 16...

75 bacterial strains were isolated from different types of habitats and after preliminary screening, 12 strains were selected for study. Dilute culture filtrate showed different types of allelopathic effects on the rate of seed germination, and development of radicle and hypocotyl region of six different plant materials viz. Amaranthus sp., Amaranthus gangeticus L., Raphanus sativus L., Vigna mungo (L.) Hepper., Vinga radiata (L.) Wilizek and Lens esculenta Moench. Four bacterial strains (3LF-9, 3BF-2, SN-3 and SHP-4) showed significant inhibitory effect to seed germination of Raphanus...