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All Journal JOURNAL OF COASTAL DEVELOPMENT INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
Agustin Sumartono
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Education Energy Environmental Science

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HYDROCARBON DISTRIBUTION IN SEDIMENTS OF JAKARTA BAY Agustin Sumartono; Winarti Andayani; Ermin Katrin Winarno
JOURNAL OF COASTAL DEVELOPMENT Vol 11, No 1 (2007): Volume 11, Number 1, Year 2007
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

The analysis of sediments hom stations I, 29, 9, I5, 17 and 25 located in Jakarta Bay were carried out. Sampels were Soxhlet-extracted for I4 hours with methylene chloride J methanol (I: I ), followed by saponi/icatian using KOH in methanol and benzene, Unsaponwcation parts were extracted using n-hexanes. Extracted samples were analyzed using gas chromatography with capiler column of SPB-I. From chromatogram results it was noted that the analysis of sea sediment sea from each station in Jakarta Bay indicate the distribution if n-allranes in the range of CN-C;6 which were dominated by an even carbon. From the results it is assumed that Jakarta Bay sediment may have natural hydrocarbon sources which may come from either the red or blue algae.
SAXITOXIN IN GREEN MUSSELS (Perna viridis, Mytiliae), BLOOD COCKLE (Anadara granosa) AND FEATHERS COCKLE (Anadara antiquata, Arcidae) USING HIGH PRESSURE LIQUID CHROMATOGRAPHY Winarti Andayani; Agustin Sumartono
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 3 (2012): Volume 15, Number 3, Year 2012
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Saxitoxin (STX) was measured in green mussels (Perna viridis), and  feathers cockle (Anadara antiquata, Arcidae) from Jakarta and blood cockle (Anadara granosa) from Jakarta and Indramayu. Samples were taken 7 times from fish market Muara Baru Jakarta and Karangsong Indramayu. All samples were collected from June up to October 2009. The aim of this research is to find out  the content of STX in the mussels. The mussels tissues  were homogenized, weighed and extracted with 0.1 M HCl. The supernatan were filtered by 0.45 μ nylon membran. Fluorescence oxidation of STX was carried out using 2% H2O2 in alkaline solution. Analysis was performed using HPLC equipped with a C18 column (4.6 mm×250 mm, 5 μm), fluorescence detection (ex 340 nm, em 400 nm) elution of acetonitrile/0.1 M ammonium formate solution (5:95, v/v, pH 6) at a flow rate of 1.0 ml/ min. The calibration graphs was prepared by injecting standards ranging from 0,5–20 ng/ml, giving an acceptable linearity (r = 0.999). Retention time of saxitoxin standard was detected at 5.467 min. Negative results were obtained for most of blood mussels from Indramayu with the exception of  the 4th and 7th sampling. Saxitoxin were detected   in Perna viridis and Anadara antiquata, Arcidae ranging from 0.87–5.39 µg/ 100 g and  0.14–0.9 µg/ 100 g wet tissues respectively.
EVALUASI PENGGUNAAN KAPORIT UNTUK PENGJILANGAN WARNA AIR SUMUR DALAM Muhammad Lindu; Agustin Sumartono; Siti Jayarti Ariani
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Vol. 5 No. 3 (2010)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1170.843 KB) | DOI: 10.25105/urbanenvirotech.v5i3.678

Abstract

Tujuan penelitian ini adalah “Evaluasi penggunaan kaporit untuk penghilangan warna air sumur dalam” Adanya senyawa humus dalam air dapat menyebabkan berbagai masalah, yaitu, menghasilkan warna air kuning sampai coklat, dapat bertindak sebagai prekusor trihalometan dan senyawa organik klorin yang bersifat toksik yang dihasilkan selama proses klorinasi, senyawa humus dapat bepotensi untuk tempat pertumbuhan bakteri, dapat membentuk kompleks dengan logam berat yang ada di air. Oleh karena adanya potensi yang besar sebagai sumber air baku untuk air bersih, maka perlu dilakukan pengolahan. Pada penelitian ini digunakan sampel air dari tiga sumber yang berbeda-beda. Dengan menggunakan kaporit dan klorin dioksida sampel air diuji dilaboratorium untuk diketahiu sisa klor yang terdapat pada sampel air, namun sisa klor yang terdapat pada sampel air belum memenihi standar baku mutu yaitu 0,2 mg/l Cl2. nilai kandungan organik yang terdapat pada masing-masing sampel air juga berbeda-beda. Hasil yang didapat antara penambahan kaporit dan klorin dioksida, bahwa penggunaan kaporit pada hasil analisis kandungan nilai organik masih lebih baik dalam penggunaan kaporit. Pada sampel Puri Indah nilai organik yang turun mencapai 88,55%, Taman Palem Mutiara 60,24%, Taman Palem Lestari 14,39%. Pada pengukuran warna dengan menggunakan kaporit dan klorin dioksida, tingkat penurunan warna lebih jelas terlihat pada sampel air yang menggunakan kaporit. Sampel air Puri Indah tingkat penurunan warnanya mencapai 81,84%, Taman Palem Mutiara 81,54%, Taman Palem Lestari 81,97%. Pada pengukuran sampel dengan menggunakan Gas Kromatografi (GC), penggunaan klorin dioksida lebih baik dibandingkan kaporit, hal ini dapat dilihat dari spektrum kromatogram yang muncul. Semakin banyak puncak yang muncul, maka diduga semakin banyak juga senyawa organik klorin yang terdapat pada sampel tersebut.Keywords: humic acid, chlorination, water treatment, organochlorine
Co-Authors Ermin Katrin Winarno Muhammad Lindu Siti Jayarti Ariani Winarti Andayani