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Wage Komarawidjaja
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Environmental Science

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Journal : Jurnal Hidrosfir Indonesia

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PENENTUAN KONSENTRASI KHLOROFIL-α SEBAGAI INDIKATOR KUALITAS PERAIRAN WADUK SAGULING Komarawidjaja, Wage
Jurnal Hidrosfir Indonesia Vol 3, No 3 (2008)
Publisher : Jurnal Hidrosfir Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (468.548 KB)

Abstract

Saguling reservoir is one of reservoir located in West Java Province. This reservoir primarily was planned for single purpose to generate the electricity. Water quality in this reservoir is depends on the water quality of Citarum River which have face significant change because of the increased of land use along Citarum River basin. Parameter that tends to increased as well as measured at Saguling reservoir in this study is pH, turbidity and Chlorophyll-α. These results are higher than the permissible limit (PP 82/2001). Its mean that Saguling reservoir water quality is worst, and based on chlorophyll-α contained > 10 μg/L is called as eutrophic waters
PENGARUH PERBEDAAN DOSIS OKSIGEN TERLARUT (DO) PADA DEGRADASI AMONIUM KOLAM KAJIAN BUDIDAYA UDANG Komarawidjaja, Wage
Jurnal Hidrosfir Indonesia Vol 1, No 1 (2006)
Publisher : Jurnal Hidrosfir Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (42.839 KB)

Abstract

The objective of the study is to determine the effectiveness of bacterial application and various continuous dissolved oxygen (DO) treatment for nitrogen (ammonia, nitrite and nitrate) degradation in shrimp culture. The DO treatment was set as 4.5 mg/L for treatment-I, 5.5 mg/L for treatment-II and 6.5 mg/L for treatment-III. The batch oxidation was conducted for a period of 20 days. The temperature, pH, salinitas, DO, ammonia, nitrite and nitrate were determined.Based on some previous research papers. NH3 becomes toxic to shrimp if the concentration is higher than 0.54mg/Lr. NH3 measurement on this experiment was about 0.01 mg/L up to 2.5 mg/L, but frequently was found lower than 0.54 mg/L in the pond under treatment-III (6.5 mg/L DO).The result also indicates that nitrification process in the experiment pond was not only depend on DO level and abundance of nitrifier, but also was influenced by a possibility of the occurrence of organic compound that inhibit nitrification.
PENENTUAN KONSENTRASI KHLOROFIL-α SEBAGAI INDIKATOR KUALITAS PERAIRAN WADUK SAGULING Komarawidjaja, Wage
Jurnal Hidrosfir Indonesia Vol 3, No 3 (2008)
Publisher : Jurnal Hidrosfir Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (468.548 KB)

Abstract

Saguling reservoir is one of reservoir located in West Java Province. This reservoir primarily was planned for single purpose to generate the electricity. Water quality in this reservoir is depends on the water quality of Citarum River which have face significant change because of the increased of land use along Citarum River basin. Parameter that tends to increased as well as measured at Saguling reservoir in this study is pH, turbidity and Chlorophyll- . These results are higher than the permissible limit (PP 82/2001). Its mean that Saguling reservoir water quality is worst, and based on chlorophyll- contained 10 g/L is called as eutrophic waters
PENGARUH PERBEDAAN DOSIS OKSIGEN TERLARUT (DO) PADA DEGRADASI AMONIUM KOLAM KAJIAN BUDIDAYA UDANG Komarawidjaja, Wage
Jurnal Hidrosfir Indonesia Vol 1, No 1 (2006)
Publisher : Jurnal Hidrosfir Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (42.839 KB)

Abstract

The objective of the study is to determine the effectiveness of bacterial application and various continuous dissolved oxygen (DO) treatment for nitrogen (ammonia, nitrite and nitrate) degradation in shrimp culture. The DO treatment was set as 4.5 mg/L for treatment-I, 5.5 mg/L for treatment-II and 6.5 mg/L for treatment-III. The batch oxidation was conducted for a period of 20 days. The temperature, pH, salinitas, DO, ammonia, nitrite and nitrate were determined.Based on some previous research papers. NH3 becomes toxic to shrimp if the concentration is higher than 0.54mg/Lr. NH3 measurement on this experiment was about 0.01 mg/L up to 2.5 mg/L, but frequently was found lower than 0.54 mg/L in the pond under treatment-III (6.5 mg/L DO).The result also indicates that nitrification process in the experiment pond was not only depend on DO level and abundance of nitrifier, but also was influenced by a possibility of the occurrence of organic compound that inhibit nitrification.
Co-Authors A.A. Ketut Agung Cahyawan W Garno, Yudhi Garno, Yudhi Soetrisno Hanies Ambarsari Hanies Ambarsari Joko Prayitno Susanto Kusno Wibowo Lysiastuti, Esi Samsuhadi Samsuhadi Tjahjono, Hendra