Using Biotechnology for treatment of some pollutants (NO3-, NO2-) in Lattakia waste water

• Moufid Yasin
• Faculty of Pharmacy, Tishreen University, Lattakia, Syria.
• International Conference About the Sustainable Development in the Syrian Coast

Abstract

Waste water is the most important resources of pollution nowadays. Nitrate and Nitrite are formed the most important pollutants in this water, many organisms are noticed in this water specially the microorganisms, and the famusest of them, the spices which following the genus Pseudomonas, which known by its ability to degradation of many compounds which exist in that water.
This work is a laboratory study to estimation the activity some spices which following thin genus with degradation of nitrate and nitrite which exist in Lattakia waste water. These spices are Pseudomonas aeruginosa and Pseudomonas .sp which isolated from this water to artificial mediums, and after increased it, it had tested on natural mediums which taken from this water and another killed by heat (to the same water). The work has down in the laboratory of biological labs in scientific faculty and labs in pharmacy faculty in Tishreen University. Twelve strains isolated belong to Pseudomonas aeruginosa and two strains belong to Pseudomonas .sp and six strains followed to first kind and two followed to second kind had screened by sequence and used in this study. It was found that strain Pseudomonas aeruginosaLs2.4 removed of 50-70 %, 30-40% from NO3-(live, killed natural medium) sequences, and 30-35 %, 10% from NO2- (live, killed natural medium) sequences, While with strain Ps.aeruginosaLc1.5 was reduced 30-75%, 70-85% NO3- and 55-93%, 60-70%NO2-, and strain Ps.aeruginosaLa2.5 removed of 50-70%, 60-65%NO3- and 65-75 %, 70-73% NO2-, and strain Pseudomonas aeruginosa La2.6 reduced 5-23%, 7-22% nitrate, 5-33% , 5-28% nitrite, and strain Pseudomonas aeruginosa La2.4 removed of 15-60% , 25-30% NO3-, and 5% NO2-, and strain Pseudomonas aeruginosa La1.4 reduced 20-40%, 30-65% NO3-, 5-55%, 1-50% NO2-( live, killed natural medium), and strain Pseudomonas sp8.2 was reduced 50-71%, 67-85% NO3- and 35-80%, 45-80% NO2-, and the strain Pseudomonas aeruginosaLc8.2 removed of 30-60 %, 30-65% from NO3- and 10% form NO2- in both case.
It was found that collect place of live and die mediums has important part in certify the activity of these organisms to coexist and the effect of some kinds exist with them in that water, and some of them refer the environment for other bacteria's activity.