Question

1.give the scientific name of the organism from which is first antibiotics is obtained?
2.during the secondary treatment of the primary effulant. how does the significant decrease in BOD occurred?​

Answer 1

Answer:

1. Antibiotics can be obtained from some types of yeast.Penicillium notatum is the source for penicillin, the first antibiotic. It is a species of fungus in the genus Penicillium.

2.During the secondary treatment of primary effluents, the BOD level decreases because useful microbes consume a major part of the organic matter. Reduction in the organic matter leads to lowering of BOD.