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Sarjito .
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MODEL ADSORPSI LOGAM BERAT Pb, Cu, dan Zn SISTEM AIR-SEDIMEN MUARA SUNGAI BANJIR KANAL BARAT SEMARANG Maslukah, Lilik; Yudiati, Ervia; ., Sarjito
Maspari Journal : Marine Science Research Vol 9, No 2 (2017): Edisi Juli
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (982.725 KB) | DOI: 10.36706/maspari.v9i2.4484

Abstract

Adsorpsi merupakan proses penting dalam mengontrol transfer logam dari fase terlarut menjadi fase padatan. Logam Pb, Cu dan Zn merupakan logam yang dalam konsentrasi tinggi membahayakan bagi lingkungan. Penelitian ini bertujuan untuk memprediksi model adsorpsi Pb, Cu dan Zn dalam sistem air laut-sedimen di Muara Sungai Banjir Kanal Barat, Semarang. Sampel air dan sedimen diambil dari 7 stasiun. Untuk mendapatkan konsentrasi Pb, Cu dan Zn, sampel air diekstraksi menggunakan larutan organic APDC_MIBK. Sedangkan untuk sampel sedimen melalui tahapan destruksi menggunakan asam chlorida (HCl) dan asam nitrat (HNO3) pada suhu 1000C selama 8 jam. Pembacaan nilai absorbansi dilakukan dengan AAS merk Shimidzu tipe 680 AA. Data yang didapat dikalkulasi berdasarkan model adsorpsi yaitu model Partisi, model Freundlich dan model Langmuir. Hasil perhitungan linieritas menunjukkan bahwa transfer ion logam Pb, Cu dan Zn ke dalam sedimen mengikuti model Langmuir dengan koefisien determinasi (R2) 0,72 untuk Pb, 0,96 (Cu) dan 0,73 (Zn). Sementara nilai kapasitas adsorpsi maksimum logam Pb (11,01-25,72), logam Cu (22,88-112,79) dan Zn (216,68-25.106). Kapasitas adsorpsi maksimum antara fase terlarut terhadap material partikel jauh lebih besar dibanding antara sistem terlarut terhadap sedimen.KATA KUNCI: Adsorpsi, Freundlich, Langmuir, model, partisi.
STUDY ON THE EFFECT OF BIOAUGMENTATION ON THE REDUCTION OF AMMONIA IN THE SEDIMENT OF SEMI INTENSIVE TAMBAK Sarjito .; Adi Santoso; Ali Djunaedi
JOURNAL OF COASTAL DEVELOPMENT Vol 3, No 3 (2000): Volume 3 Number 3 Year 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5533.314 KB)

Abstract

The aboraratory scale experiment with split plot randomized design was perfomed to find out the effect bioaugmention on ammonia reduction in the sediment of semi intensive tambak. The msin treatment was bioaugmentaion with probiotic epicin concentration of 0; 0.5 ; 1.0 and 1.5 ppm; as sub-treatment was the salinity (20; 25 and 30 ppt), and as a group was day (0; 2; 4 and 6). The result indicated that bioaugmentation was able to reduce ammonia concentration in the sediment of semi intensive tambak. The treatments, especially dose and days had a significant affect on the reduction ammonia in the sediment (p<0.01) with exception to salinity (p>0.05). the capability of epicin as a bioaugmentation started on the day of 2. The most effective epicin dose to reduce ammonia in the sedimentof semi intensive tambak for culture of Tiger shrimp (Penaeus. Monodon F.) was 1.5 ppm.
Co-Authors ADI SANTOSO Ali Djunaedi Ervia Yudiati Lilik Maslukah