Research Article

Biogas Production and Biofertilizer Estimation from Anaerobic Co-Digestion of Blends of Wastewater and Microalgae

Table 1

Composition of feedstock before digestion.

ParametersUnitWW aloneWW : MA (3 : 1)WW : MA (3 : 2)

Phx7.80 ± 0.167.77 ± 0.097.93 ± 0.12
TSmg/l2271.87 ± 3.972032.68 ± 4.721711.93 ± 4.38
VSmg/l703.95 ± 1.40634.43 ± 2.68564.75 ± 5.83
BOD5mg/l777.57 ± 4.58702.94 ± 3.95652.03 ± 2.15
CODmg/l1549.79 ± 2.141390.38 ± 3.351292.37 ± 4.12
DOmg/l1.49 ± 0.292.03 ± 0.082.30 ± 0.14
TPmg/l3.47 ± 0.103.99 ± 0.023.96 ± 0.06
TKmg/l13.40 ± 1.8412.61 ± 1.1611.28 ± 0.65
TNmg/l16.97 ± 0.8825.44 ± 0.7828.21 ± 1.69
TCcol/100 ml307104301104298104
FCcol/100 ml181104178104171104

x = no unit, col = colonies, SD = standard deviation.