التحطيم الإحيائي لتراكيز بعض المبيدات في المياه الملوثة باستخدام بكتيريا Bacillus

Abstract EN

Two types of pesticides were selected as organic matter for their negative influence on human health and aquatic life.

Two bacteria Bacillus badius and Bacillus subtilis were used to examine their ability to degradation the insecticide Diazinon and herbicide Glyphosate with initial concentrations 50, 60, 70, 80, 90 and 100 ppm in water, of laboratory conditions of 25 Co and pH 7.2-7.6 in batch culture system for 24hr treatment period.

Bacillus badiusshowed high capability to reduce Diazinonconcentrations by 66.6 %, 62.3 %, 43.7 %, 34.1 %, 23.8 % and Glyphosate concentrations by 75.4 %, 61.8 %, 47.8 %, 37.5 % and 30.5 %.While, Bacillus subtilis showed lowerability to reduce Glyphosate concentrations by 62.2 %, 52.3 %, 42.4 %, 32 %, 23 % and Diazinon concentrations by 43.2 %, 39.3 %, 25.1 %, 24.6 % and 21.8 %.

This study proved that Bacillus badius and Bacillus subtilis have no ability to survive in pesticides concentration of 100 ppm.