PENGURANGAN KADAR N DAN P PADA LIMBAH CAIR LABORATORIUM SECARA FITOREMEDIASI MENGGUNAKAN ENCENG GONDOK (EICHORNIA CRASSIPES)
ABSTRACT: Laboratory liquid
waste contains both metal, nonmetal, organic and anorganic content. If it is
discharged directly to environment, it will cause pollution that is harmful for
living thing. Data of waste survey result in 2009-2010 indicated that liquid
waste of Laboratory in Chemical Engineering Department, Gadjah Mada University
(JTK UGM) consist of various complex compound such as NH4+, PO43-. JTK UGM has
wastewater treatment plant (WWTP) to deal with environmental pollution coming
from waste of each laboratory and have three process, anaerobe activated
sludge, aerobe and phytoremediation. Because the laboratory’s waste was very
complex, the WWTP have not operated maximally yet. So, it is necessary research
on wwtp processing step, particularly for phytoremediation process using water
hyacinth. Objective of this research was to study effect of concentrations N
and P on adaptability and capability of water hyacinth to grow. In addition it
developed a mathematical model to estimate of N and P concentration decrease
rate in liquid. The research was done in batch by planting water hyacinth that
has been acclimated in wastewater containing N-NH4OH and P-H3PO4. Parameter
observed is N and P concentration in liquid. The result indicated that water
hyacinth can absorb N and P. Water hyacinth grow well in N-NH4OH concentration
of 9.651 ppm and 15.573 ppm and P-H3PO4 concentration of 2.013 ppm and 2.7373
ppm. It was marked with additional weight and colour of water hyacinth leaves
of fresh green. Mathematical model presented to estimate N concentration
decrease rate indicated good result in experiment. However, P concentration
decrease in liquid phase, the presented model is still not good, because P
nutrient decomposition process has not been accommodated during absorption by
water hyacinth.
Penulis: Nurmaya Arofah, A.
Silvan Erusani
Kode Jurnal: jpbiologidd141011
