Abstract:
Leachate monitoring required done periodically to know effectiveness of landfill
management. Nitrite levels was one of pollution indicator parameter. Nitrite test
using test kit method offers simplicity and concise testing time. This reasearch is
propose to determine method validity of nitrite testing with portable colorimeter
all at once measuring nitrite on landfill leachate and to construct technical
strategies for decrease nitrite content on it. The reasearch be located at Cahaya
Kencana landfill in Banjar Districts. Method validity of nitrite testing determined
based on calibration curve linierity, aquracy, precision, and method comparation.
Nitrite levels on landfill leachate are measuring on check point SP-1, SP-2, SP-3,
and SP-4. Technical strategy to decrease nitrite levels arranged uses descriptive
method and field survey. Method validity of nitrite test using portable colorimeter
on landfill leachate sample declared valid based on determination of calibration
curve linierity with correlation coefficient (r) 0,997; aquracy test obtained
Recovery (R) 95%; precision test obtained Relative Standard Deviation (RSD)
6,33%; and comparation of testing among method use independent t-test obtained
Sig. (2-tailed, α 95%) value 0,968. Nitrite levels as result of measuring on
leachate at Cahaya Kencana landfill in Banjar Districts shows that sample on SP-1
check point has exceed quality standard while SP-2, SP-3, dan SP-4 spot are
belowed. Technical strategy that recommended are recirculation of leachate to
landfill areas, aeration optimalization with added aerator to facultative pond,
replace bacterial home with honeycomb biofilter media, and also apply
fitoremediation at wetland pond in a way to grow Eceng Gondok (Eichhornia
crassipes) plant that could lowered organic pollutant matters
