BioMed Research International / 2016 / Article / Tab 2

Research Article

Utilization of Waste Materials for Microbial Carrier in Wastewater Treatment

Table 2

Physiological and biochemical characteristics of bacteria on corncob and concrete carriers.

SampleGram stainShapeCatalase testCharacteristics of colonyColor of colonyNumber of isolates

Unused corncob carrierNegativeRodSmoothWhite-turbid1
NegativeRodSmoothWhite-turbid2

Used corncob carrier (surface)NegativeCocciCurlyWhite-turbid4
NegativeCocciSmoothWhite-turbid4

Used corncob carrier (core)NegativeCocciCurlyWhite-turbid2
NegativeCocciSmoothWhite-turbid2

Unused concrete carrierNot detectedNot detectedNot detectedNot detectedNot detectedNot detected

Used concrete carrier (surface)NegativeCocciSmoothWhite-turbid3
PositiveRodSmoothWhite-turbid1

Used concrete carrier (core)NegativeCocciSmoothWhite-turbid7
NegativeCocciSmoothBrown1

Symbols: positive, negative.

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