PEMANFAATAN SIMBIOSIS MIKROALGA Chlorella sp DAN AGROBOST UNTUK MENURUNKAN KADAR POLUTAN LIMBAH CAIR SAGU

Abstract

The purpose of this research was to get the best treatment addition of Agrobost microorganisms as a reducing
agent of pollutant from sago liquid waste with the addition of microalgae Chlorella sp. This research used a
Completely Randomized Design (CRD) with 5 treatments and 3 replications. The treatments in this addition
was microalgae Chlorella sp. as much 800 ml/L (6.292.000 cell/ml) of sago liquid waste with some various
concentrations of Agrobost (0% v/v, 1% v/v, 2% v/v, 3% v/v, dan 4% v/v). The data obtained were analyzed
statistically using ANOVA and DNMRT at 5 % level. The result showed that the addition of Agrobost
microorganisms significantly affected COD, BOD, TSS, nitrate, phosphate, DO and pH of sago liquid waste.
The chosen treatment from the result of this research was the P2 treatment showing the best level of reduction
of COD 88,65%, BOD of 91,41%, TSS of 63,96% and the increase in the pH of 92,50%, DO of 56,51%.