Effects of Detergents on River Nile Water Microflora

A. A. Issa

Article Details

Effects of Detergents on River Nile Water Microflora

Authors:

A. A. Issa

Publisher:

Islamic World Academy of Sciences (IAS)

Journal:

Medical Journal of Islamic World Academy of Sciences Vol.7 Issue 3, pp.157-162

Document Type:

Article

Publication Date:

1/1994

Document Language:

English

Document ID (Org No.):

2001937514

pISSN:

2415-1300

Keywords:

Abstract:

 Generally, the number of genera and species of microflora were found to be decreased in River Nile water-treated with different doses of detergents. While the counts of the micro-floral populations (bacteria, fungi, algae) were inhibited by detergent treatments, only those of algae, in some cases, were promoted either slightly or markedly. From the results obtained it could be stated that algae are more sensitive to detergents under investigation that bacteria and fungi while they could not tolerate the high levels used (5 or 10g/L). This may be due to the rise in water pH which was observed to be significantly reduced to 4.2 and 2.7, respectively. Gram positive cocci were highly sensitive to all doses of all detergents used while Gram positive bacilli were inhibited by the low doses and completely suppressed in response to all mixture doses and to high doses of the other detergents. No stimulatory effect on bacteria by any detergent was observed. With regard to fungi, it was found that some species were more sensitive to detergents than the others. Some species were inhibited by some detergents and promoted by the others. Penicillium chrysogenum was the most tolerant species and could be regarded as detergent tolerant fungus and may be used as a biological indicator for water pollution by detergents. It was also observed that some algal species were very sensitive to all detergents used while others were tolerant to the same detergents and sensitive to others. It was also observed that a third group of algae were resistant to high doses of different detergents. These could be considered as detergent-tolerant species and regarded as biological indicators of pollution.

Article Details

Effects of Detergents on River Nile Water Microflora

Authors:

A. A. Issa

Publisher:

Islamic World Academy of Sciences (IAS)

Journal:

Medical Journal of Islamic World Academy of Sciences Vol.7 Issue 3, pp.157-162

Document Type:

Article

Publication Date:

1/1994

Document Language:

English

Document ID (Org No.):

2001937514

pISSN:

2415-1300

Microflora

detergent sensitivity

detergent resistance

Issues

Article Details

Effects of Detergents on River Nile Water Microflora

Authors: A. A. Issa

Publisher: Islamic World Academy of Sciences (IAS)

Journal: Medical Journal of Islamic World Academy of Sciences Vol.7 Issue 3, pp.157-162

Document Type: Article

Publication Date: 1/1994

Document Language: English

Document ID (Org No.): 2001937514

pISSN: 2415-1300

Microflora

detergent sensitivity

detergent resistance

Issues

Authors:

A. A. Issa

Publisher:

Islamic World Academy of Sciences (IAS)

Journal:

Medical Journal of Islamic World Academy of Sciences Vol.7 Issue 3, pp.157-162

Document Type:

Article

Publication Date:

1/1994

Document Language:

English

Document ID (Org No.):

2001937514

pISSN:

2415-1300