Biodegradation of Sewage Wastewater Using Autochthonous Bacteria

Table 3

Study of physiological features (pH, temperature, and NaCl concentration) of identified strains. (−) represents no growth and (+) growth.

Tests	Bacillus pumilus	Brevibacterium sp.	Pseudomonas aeruginosa
Growth at pH 4.0	−	−	−
pH 5.0	−	−	+
pH 6.8	+	+	+
pH 8.0	+	+	+
pH 9.0	+	−	+
pH 11.0	−	−	−
Growth at 4°C	−	−	−
10°C	−	−	−
25°C	+	+	+
30°C	+	+	+
37°C	+	+	+
42°C	+	+	+
45°C	+	+	+
55°C	−	−	−
65°C	−	−	−
Growth on NaCl (%)
2.0	+	+	+
4.0	+	+	+
7.0	+	+	-
8.0	+	-	-
10.0	+	-	-