THE APPLICATION OF LIFE CYCLE ASSESSMENT TO EVALUATE WATER QUALITY CONDITION AROUND FISH CAGES IN CIRATA RESERVOIR, INDONESIA
Abstract: Life Cycle
Assessment (LCA) is an environmental analytical tool used for evaluating the
environmental performance of products by compiling and evaluation of the
inputs, outputs and potential environmental impacts of a product system
throughout the life cycle of product.Sources of the decomposition at Cirata
Reservoir are from industrial activities, household waste, agricultural waste,
and the leftover from the activities of floating net fish cages. The wastes are
in the form of fat, protein and carbohydrat. In decomposition process and the
rate of destruction process of organic matters in the sediment is carried our by bacteria, resulting in the
oxygen dissolved in the waters will decrease. This lessens the oxygen at Cirata
reservoir so that decomposition process takes place anaerobically at the bottom
of the waters. The methodology was conducted by
water and sediment sampling, measuring water quality on location and
laboratory analysis for samples of water and sediment. Analysis result showed
that the data of water quality collected in every station was relatively
homogeneous. The quality of water at measuring time approached critical
treshold required for fish raising. The result showed that the level of
decomposition Sediment Organic Metter, water quality in Cirata reservoir based
on IKA_STORET valued class I, II, and III catagorized as worse. Valued DO,
sulfide, Fenol, BOD, COD, Total Fosfat byone
water quality standar. The destruction will occur by itself, depending
on the availability of oxygen on the sediment and interface when there is
bacteria serving as heterotraphic aerobic in line with the availability of
dissolved oxygen for bacteria to do the decomposition activity in the sediment.
The result would be confirmed on dendogram classification hierarchy, result
revealed that stations of observation were divided into 2 groups according to
affecting characteristics. Group 1 covering stasion 1 and 2, group 2 which
covering station 3 was characterized by high concentration of nitrit and orto fosfat with c-organik.Sources
of the decomposition at Cirata Reservoir are from industrial activities, household
waste, agricultural waste, and the leftover from the activities of floating net
fish cages. The wastes are in the form of fat, protein and carbohydrat. In
decomposition process and the rate of destruction process of organic matters in
the sediment is carried our by bacteria,
resulting in the oxygen dissolved in the waters will decrease. This lessens the
oxygen at Cirata reservoir so that decomposition process takes place
anaerobically at the bottom of the waters. The methodology was conducted by water and sediment sampling, measuring water
quality on location and laboratory analysis for samples of water and sediment.
Analysis result showed that the data of water quality collected in every
station was relatively homogeneous. The quality of water at measuring time
approached critical treshold required for fish raising. The result showed that
the level of decomposition Sediment Organic Metter, water quality in Cirata
reservoir based on IKA_STORET valued class I, II, and III catagorized as worse.
Valued DO, sulfide, Fenol, BOD, COD, Total Fosfat byone water quality standar. The destruction will
occur by itself, depending on the availability of oxygen on the sediment and
interface when there is bacteria serving as heterotraphic aerobic in line with
the availability of dissolved oxygen for bacteria to do the decomposition
activity in the sediment. The result would be confirmed on dendogram
classification hierarchy, result revealed that stations of observation were
divided into 2 groups according to affecting characteristics. Group 1 covering
stasion 1 and 2, group 2 which covering station 3 was characterized by high
concentration of nitrit and orto fosfat
with c-organik.
Keywords: Cirata reservoir,
anaerobic; sediment decomposition; Organic Metter
Author: Tri Heru Prihadi,
Adang Saputra, Imam Taufik, Idil Ardi
Journal Code: jpperikanangg170024
Artikel Terkait :
Jp Perikanan gg 2017
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