Fitri Budiyanto - Academia.edu (original) (raw)
Papers by Fitri Budiyanto
Regional Studies in Marine Science, Nov 30, 2023
Open Chemistry, Dec 31, 2022
The Microbiological Society of Korea, Sep 30, 2018
IOP conference series, Nov 1, 2021
The concentration of heavy metals (HMs) camium (Cd), cuprum (Cu), chromium (Cr), nickel (Ni), lea... more The concentration of heavy metals (HMs) camium (Cd), cuprum (Cu), chromium (Cr), nickel (Ni), lead (Pb), and zinc (Zn) in sediments of Makassar Strait was investigated. We collected sediment samples from 28 research stations. Atomic Absorption Spectrophotometer (AAS) was used to measure HMs in all samples. This research aims to know the levels of HMs’ contamination and pollution in sediments. The analysis revealed that the concentration of all HMs is still low and inlined with the sediment standard guidelines, exception of Cu and Ni. In regards to the value of I_geo and PLI, sediment in the Makassar Strait is still normal for marine life, and sediment is included in unpolluted categories (PLI<1). The sources of HMs in this strait come from human activities in the land of Kalimantan and Sulawesi Island.
Jurnal Segara, Jul 1, 2015
Teluk Lampung memiliki nilai sosial-ekonomi dan ekologi yang tinggi berkaitan dengan potensi pera... more Teluk Lampung memiliki nilai sosial-ekonomi dan ekologi yang tinggi berkaitan dengan potensi perairan dan penggunaannya oleh manusia. Di lain pihak, pemanfaatan Teluk Lampung mungkin mengubah kelimpahan bahan kimia berbahaya seperti logam berat. Tujuan dari penilitian ini untuk mengetahui konsentrasi logam berat Cd, Cu, Pb dan Zn dalam sedimen dan menilai kondisi periaran Teluk Lampung. Pengamatan konsentrasi logam berat dilakukan di 13 titik stasiun pada bulan maret 2008. Analisis logam berat dalam sedimen menggunakan tiga jenis asam: HNO 3 , HCl, H 2 O 2 kemudian sampel dianalisis menggunakan Spektrofotometer Serapan Atom. Hasil pengukuran menunjukkan variasi logam berat di setiap lokasi pengamatan dan konsentrasi tertinggi Cd, Cu, Pb dan Zn dalam sedimen secara berurutan adalah 0.08 mg/kg berat kering, 22.99 mg/kg berat kering, 24.75 mg/kg berat kering dan 118.48 mg/kg berat kering. Faktor yang dominan mempengaruhi variasi logam berat dalam sedimen dalam studi ini adalah jarak lokasi pengamatan dengan pusat kegiatan antropogenik dan fraksi sedimen. Indeks SQG-Q menunjukkan 7 titik stasiun memiliki nilai SQG-Q ≤ 0.1 sementara 6 titik stasiun lainnya memiliki nilai 0.1≤ SQG-Q <1. Hal ini berarti lebih dari setengah titik stasiun berada pada kondisi tidak tercemar.
Journal of Coastal Zone Management, Jul 9, 2013
The Mahakam Delta in East Kalimantan contains large number of natural resources specially hydroca... more The Mahakam Delta in East Kalimantan contains large number of natural resources specially hydrocarbon sources. Anthropogenic activities have influenced this ecosystem for many years. The aims of this work were to find out dissolved metal and metals in sediment distribution in this area and to find out contaminant level based on allowable guidelines. Twenty nine stations were sampled within the delta and metal content analyses, both in sediment and water column, were established for Cd, Cu, Ni, Pb and Zn. Sediment analyses were conducted using US EPA 3050B method and dissolved metals analyses were conducted using Back Extraction method.
Nucleation and Atmospheric Aerosols, 2018
Nucleation and Atmospheric Aerosols, 2019
Environmental Monitoring and Assessment, Oct 8, 2021
Trace metals are vital to primary productivity and play an essential role as main components in r... more Trace metals are vital to primary productivity and play an essential role as main components in regulating oceanic biogeochemical cycles. Dissolved and particulate trace metals within the water column may vary due to primary production, temperature, and nutrient changes, factors that may also vary spatially and temporally. Furthermore, assessment of trace metals mainly relies on in situ observation, and so wide-area investigation of trace-metal concentration may be challenging and subject to technical constraints. A specific approach is therefore necessary that combines biogeochemical proxies, satellite data, and trace-metal linear correlation. This study aims to assess the potential spatio-temporal variability of sea surface cadmium (Cd) and copper (Cu) concentrations in Indonesian seas and surrounding areas. The correlations of Cd and Cu concentrations with primary production and nutrient data were used to convert hindcast satellite data into estimates of the metals’ concentrations. The potential variability of trace metals can be determined by overlaying both data. Indonesia’s Fisheries Management Areas (FMAs) were used for data clustering and analysis. The results show that Cd and Cu trace metals have similar distribution patterns throughout the year. However, dissolved Cu has a more diverse coverage area than dissolved Cd, including within the Halmahera, Seram, and Maluku Seas (FMAs 716 and 717), the Makassar Strait (FMA 717), and the Java–Sumatra upwelling area (FMA 573). Both Cd and Cu concentrations in the Java–Sumatra upwelling region follow the periodic upwelling pattern. Overall, both Cd and Cu show a declining trend in concentration from 2012 to 2019. It is estimated that dissolved Cd concentration declined from 1500–2000 pmol/kg in 2012 to 1000–1500 pmol/kg in 2019 for all locations. Dissolved Cu concentration decreased from 30–35 nmol/kg in 2012 to 25–30 nmol/kg in 2019. Estimated dissolved Cd and Cu follow the linear functions of silicate (SiO4), nitrate (NO3), and primary productivity. The fluctuation of anthropogenic activities and global warming are likely to indirectly impact the decline in metal concentrations by affecting nutrients and primary productivity.
Bulletin of the marine geology, May 24, 2019
Five metals in sediment samples at seven sites from the Ambon Bay were analyzed with BCR sequenti... more Five metals in sediment samples at seven sites from the Ambon Bay were analyzed with BCR sequential extraction procedure to determine chemical fractionation of metals and to assess bioavailability of metals with Risk Assessment Code (RAC). The result showed that the percentages of cadmium (100%), lead (82.6-97.08%) and zinc (41.68-76.33%) were mostly accumulated in the non-residual (F1+F2+F3) fraction of the total concentrations. While the copper percentages (44.74-78.91%) and nickel (59.71-74.16%) were mostly accumulated in residual (F4) fraction of the total concentrations. The Risk Assessment Code (RAC) reveals that cadmium, copper, nickel and zinc at locations exist in acid soluble (exchangeable) fraction and therefore, they are in low until very high risk category meanwhile there is no Pb at locations exist in acid soluble (exchangeable) fraction.
IOP conference series, Feb 1, 2018
Banten Bay is categorized as a marine area that is busy with marine tourism activities, settlemen... more Banten Bay is categorized as a marine area that is busy with marine tourism activities, settlements and also industries. One potential impact of the condition is the occurrence of pollution from both industrial and domestic sources, erosion and sedimentation in the coastal environment. Samples were collected from 25 representative stations in April 2016. Chemical speciation of three heavy metals (Cu, Ni, and Zn) was studied using a modified sequential extraction procedure proposed by the European Standard, Measurements and Testing (SM&T) program, formerly the Community Bureau of Reference (BCR). The aims of this study are to determine geochemical speciation of 4 bounds of metal: acid-soluble, reducible, oxidizable and residual, and to assess their impacts in the sediments of Banten Bay, Indonesia. The result shows that the percentage of Copper (45.90-83.75%), Nickel (18.28-65.66%), and Zinc (30.45-79.51%) were mostly accumulated in residual fraction of the total concentrations. The Risk Assessment Code (RAC) reveals that about 0-7.07% of Copper and 1.11-24.35 % of Zinc at sites exist in exchangeable fraction and therefore, they are in low risk category. While 7.34-34.90 of Ni at sites exists in exchangeable fraction and therefore, it is in medium risk category to aquatic environment.
Nucleation and Atmospheric Aerosols, 2022
The trace metals (Cd, Cu, Pb, Zn, Ni, and Fe) content of certified reference marine sediments PAC... more The trace metals (Cd, Cu, Pb, Zn, Ni, and Fe) content of certified reference marine sediments PACS-2 and PACS-3 were determined by flame atomic absorption spectrometry. This study aims to ensure the accuracy of a method. The reference sediments are digested with methods 3050B (nitric acid, hydrogen peroxide, hydrochloric acid). Data were collected within seven consecutive years from 2013-2019. The results showed that the percentage recovery of five metals ranged from 87%-113% in PACS-2 and 81%-107% in PACS-3, based on the certified values. This study suggests that acid digestion provides a robust method for metals analysis in the sediment sample.
Bulletin of the marine geology, Aug 2, 2017
Heavy metals, hazardous chemical substances, increase in marine environment due to anthropogenic ... more Heavy metals, hazardous chemical substances, increase in marine environment due to anthropogenic discharges. However, due to the hydrodynamic of the marine system these metals could vary both temporal and spatial distribution of metals in Jakarta Bay. This study was to reveal the temporal and spatial distribution of metals in sediment over the bay and to assess the environmental condition. Sediment samples were collected in11 stations of March (transitional season) and June(dry season)2013. The result showed that the concentration of heavy metals varied spatially, in which elevated concentration occurred adjacent terrestrial indicating the enrichment of metal-anthropogenic source, but insignificant temporarily.
Ilmu Kelautan : Indonesian Journal of Marine Sciences, Feb 28, 2019
The assessment of the biological availability of metals is rarely used only by knowing the total ... more The assessment of the biological availability of metals is rarely used only by knowing the total concentration of the metal. Therefore, six sediment samples from Muara Angke, Teluk Jakarta were assessed the chemical speciation of heavy metals. This study aims to determine metal speciation using the BCR sequential extraction procedure and to determine metal speciation to evaluate bioavailability in the sediments of Muara Angke, Jakarta Bay. In sediment from Muara Angke, the ability to move sequence of heavy metals studied was Pb>Zn>Cu>Ni. The mostly accumulated in the non-residual fraction of the total concentrations are Cu, Ni, Pb and Zn which indicated that the mobility and anthropogenic inputs of these metals in Muara Angke were quite high. The Risk Assessment Code (RAC) reveal that Zn and Ni at almost station exist in exchangeable and a fraction of carbonate-bound and therefore high-risk category. Most of the Cu at most of the station is in the oxidizable fraction, except a small portion found at all station is in the exchangeable fraction and fraction of carbonate-bound thus posing a low risk for the waters environment. The patterns of Pb speciation show no to low risk to the waters environment. However, metal observations in the waters are necessary because they are persistent and can accumulate which threatening the water environment.
Oseanologi di Indonesia, Jul 9, 2020
Aktivitas perekonomian yang terus meningkat di wilayah pesisir utara Jawa, berpotensi menyumbangk... more Aktivitas perekonomian yang terus meningkat di wilayah pesisir utara Jawa, berpotensi menyumbangkan kontaminan antropogenik yang mengancam kualitas perairan pesisir dan estuari Cimanuk di Indramayu. Logam berat yang merupakan salah satu limbah dari aktifitas tersebut belum dipelajari secara terperinci. Penelitian ini bertujuan untuk menentukan distribusi dari logam Cu, Pb, Cd, Zn, dan Ni yang terlarut dalam air laut dan dalam sedimen di Estuari Cimanuk. Pengambilan sampel air laut dan sedimen dilakukan pada Bulan Mei 2017 di 18 stasiun. Sampel air laut diekstraksi menggunakan metode ektraksi balik (back extraction) sementara sampel sedimen diekstraksi menggunakan asam sesuai metode USEPA 3050B. Pengukuran logam berat dari ekstrak air laut ataupun sedimen dilakukan menggunakan Flame Absorption Spectrophotometry berdasarkan metode USEPA 3050B. Distribusi spasial logam berat dalam air laut dan sedimen dimodelkan menggunakan ArcGIS® versi 10.6.1. Hasil penelitian menunjukkan konsentrasi logam terlarut dalam air laut untuk Cu, Pb, Cd, Zn, dan Ni adalah 0,0004-0,0038 mg/L (Cu), <0,0001-0,0044 mg/L (Pb), 0,0002-0,0003 mg/L (Cd), 0,0005-0,0119 mg/L (Zn), dan 0,0020-0,0052 mg/L (Ni). Konsentrasi logam dalam sedimen adalah 12,36-54,08 mg/kg (Cu), 6,43-15,72 mg/kg (Pb), 0,07-0,37 mg/kg (Cd), 64,53-85,16 mg/kg (Zn), dan 19,66-62,85 mg/kg (Ni). Model distribusi spasial menunjukkan bahwa logam berat dalam air laut maupun sedimen menunjukkan pola yang identik. Logam dengan konsentrasi tinggi umumnya terdeteksi di stasiun yang berlokasi dekat dengan daratan, mengindikasikan bahwa logam berat mengalami pengayaan yang berasal dari aktivitas antropogenik daratan.
Elsevier eBooks, 2021
Abstract The presence of heavy metals in the aquatic environment impacting on human health is one... more Abstract The presence of heavy metals in the aquatic environment impacting on human health is one of the most pressing concerns in the current industrialized era. Bioelectrochemical technology employs living microbials as biocatalysts to remove the metal ions in aqueous solution via a reduction–oxidation mechanism, offering potential advantages that is more sustainable than the conventional method. In addition, it could recover the metal ions into their low oxidation states which have potential economic value. This chapter summarizes the application of bioelectrochemical systems on metal removal, either using microorganisms originating from freshwater or marine selected species. The basic theory of the process is discussed first. The optimizing process is also evaluated to pinpoint the advantages and the drawbacks of the process.
Marine Pollution Bulletin, Jul 1, 2023
Environmental Science and Pollution Research
Environmental Science and Pollution Research
Marine Pollution Bulletin
Regional Studies in Marine Science, Nov 30, 2023
Open Chemistry, Dec 31, 2022
The Microbiological Society of Korea, Sep 30, 2018
IOP conference series, Nov 1, 2021
The concentration of heavy metals (HMs) camium (Cd), cuprum (Cu), chromium (Cr), nickel (Ni), lea... more The concentration of heavy metals (HMs) camium (Cd), cuprum (Cu), chromium (Cr), nickel (Ni), lead (Pb), and zinc (Zn) in sediments of Makassar Strait was investigated. We collected sediment samples from 28 research stations. Atomic Absorption Spectrophotometer (AAS) was used to measure HMs in all samples. This research aims to know the levels of HMs’ contamination and pollution in sediments. The analysis revealed that the concentration of all HMs is still low and inlined with the sediment standard guidelines, exception of Cu and Ni. In regards to the value of I_geo and PLI, sediment in the Makassar Strait is still normal for marine life, and sediment is included in unpolluted categories (PLI<1). The sources of HMs in this strait come from human activities in the land of Kalimantan and Sulawesi Island.
Jurnal Segara, Jul 1, 2015
Teluk Lampung memiliki nilai sosial-ekonomi dan ekologi yang tinggi berkaitan dengan potensi pera... more Teluk Lampung memiliki nilai sosial-ekonomi dan ekologi yang tinggi berkaitan dengan potensi perairan dan penggunaannya oleh manusia. Di lain pihak, pemanfaatan Teluk Lampung mungkin mengubah kelimpahan bahan kimia berbahaya seperti logam berat. Tujuan dari penilitian ini untuk mengetahui konsentrasi logam berat Cd, Cu, Pb dan Zn dalam sedimen dan menilai kondisi periaran Teluk Lampung. Pengamatan konsentrasi logam berat dilakukan di 13 titik stasiun pada bulan maret 2008. Analisis logam berat dalam sedimen menggunakan tiga jenis asam: HNO 3 , HCl, H 2 O 2 kemudian sampel dianalisis menggunakan Spektrofotometer Serapan Atom. Hasil pengukuran menunjukkan variasi logam berat di setiap lokasi pengamatan dan konsentrasi tertinggi Cd, Cu, Pb dan Zn dalam sedimen secara berurutan adalah 0.08 mg/kg berat kering, 22.99 mg/kg berat kering, 24.75 mg/kg berat kering dan 118.48 mg/kg berat kering. Faktor yang dominan mempengaruhi variasi logam berat dalam sedimen dalam studi ini adalah jarak lokasi pengamatan dengan pusat kegiatan antropogenik dan fraksi sedimen. Indeks SQG-Q menunjukkan 7 titik stasiun memiliki nilai SQG-Q ≤ 0.1 sementara 6 titik stasiun lainnya memiliki nilai 0.1≤ SQG-Q <1. Hal ini berarti lebih dari setengah titik stasiun berada pada kondisi tidak tercemar.
Journal of Coastal Zone Management, Jul 9, 2013
The Mahakam Delta in East Kalimantan contains large number of natural resources specially hydroca... more The Mahakam Delta in East Kalimantan contains large number of natural resources specially hydrocarbon sources. Anthropogenic activities have influenced this ecosystem for many years. The aims of this work were to find out dissolved metal and metals in sediment distribution in this area and to find out contaminant level based on allowable guidelines. Twenty nine stations were sampled within the delta and metal content analyses, both in sediment and water column, were established for Cd, Cu, Ni, Pb and Zn. Sediment analyses were conducted using US EPA 3050B method and dissolved metals analyses were conducted using Back Extraction method.
Nucleation and Atmospheric Aerosols, 2018
Nucleation and Atmospheric Aerosols, 2019
Environmental Monitoring and Assessment, Oct 8, 2021
Trace metals are vital to primary productivity and play an essential role as main components in r... more Trace metals are vital to primary productivity and play an essential role as main components in regulating oceanic biogeochemical cycles. Dissolved and particulate trace metals within the water column may vary due to primary production, temperature, and nutrient changes, factors that may also vary spatially and temporally. Furthermore, assessment of trace metals mainly relies on in situ observation, and so wide-area investigation of trace-metal concentration may be challenging and subject to technical constraints. A specific approach is therefore necessary that combines biogeochemical proxies, satellite data, and trace-metal linear correlation. This study aims to assess the potential spatio-temporal variability of sea surface cadmium (Cd) and copper (Cu) concentrations in Indonesian seas and surrounding areas. The correlations of Cd and Cu concentrations with primary production and nutrient data were used to convert hindcast satellite data into estimates of the metals’ concentrations. The potential variability of trace metals can be determined by overlaying both data. Indonesia’s Fisheries Management Areas (FMAs) were used for data clustering and analysis. The results show that Cd and Cu trace metals have similar distribution patterns throughout the year. However, dissolved Cu has a more diverse coverage area than dissolved Cd, including within the Halmahera, Seram, and Maluku Seas (FMAs 716 and 717), the Makassar Strait (FMA 717), and the Java–Sumatra upwelling area (FMA 573). Both Cd and Cu concentrations in the Java–Sumatra upwelling region follow the periodic upwelling pattern. Overall, both Cd and Cu show a declining trend in concentration from 2012 to 2019. It is estimated that dissolved Cd concentration declined from 1500–2000 pmol/kg in 2012 to 1000–1500 pmol/kg in 2019 for all locations. Dissolved Cu concentration decreased from 30–35 nmol/kg in 2012 to 25–30 nmol/kg in 2019. Estimated dissolved Cd and Cu follow the linear functions of silicate (SiO4), nitrate (NO3), and primary productivity. The fluctuation of anthropogenic activities and global warming are likely to indirectly impact the decline in metal concentrations by affecting nutrients and primary productivity.
Bulletin of the marine geology, May 24, 2019
Five metals in sediment samples at seven sites from the Ambon Bay were analyzed with BCR sequenti... more Five metals in sediment samples at seven sites from the Ambon Bay were analyzed with BCR sequential extraction procedure to determine chemical fractionation of metals and to assess bioavailability of metals with Risk Assessment Code (RAC). The result showed that the percentages of cadmium (100%), lead (82.6-97.08%) and zinc (41.68-76.33%) were mostly accumulated in the non-residual (F1+F2+F3) fraction of the total concentrations. While the copper percentages (44.74-78.91%) and nickel (59.71-74.16%) were mostly accumulated in residual (F4) fraction of the total concentrations. The Risk Assessment Code (RAC) reveals that cadmium, copper, nickel and zinc at locations exist in acid soluble (exchangeable) fraction and therefore, they are in low until very high risk category meanwhile there is no Pb at locations exist in acid soluble (exchangeable) fraction.
IOP conference series, Feb 1, 2018
Banten Bay is categorized as a marine area that is busy with marine tourism activities, settlemen... more Banten Bay is categorized as a marine area that is busy with marine tourism activities, settlements and also industries. One potential impact of the condition is the occurrence of pollution from both industrial and domestic sources, erosion and sedimentation in the coastal environment. Samples were collected from 25 representative stations in April 2016. Chemical speciation of three heavy metals (Cu, Ni, and Zn) was studied using a modified sequential extraction procedure proposed by the European Standard, Measurements and Testing (SM&T) program, formerly the Community Bureau of Reference (BCR). The aims of this study are to determine geochemical speciation of 4 bounds of metal: acid-soluble, reducible, oxidizable and residual, and to assess their impacts in the sediments of Banten Bay, Indonesia. The result shows that the percentage of Copper (45.90-83.75%), Nickel (18.28-65.66%), and Zinc (30.45-79.51%) were mostly accumulated in residual fraction of the total concentrations. The Risk Assessment Code (RAC) reveals that about 0-7.07% of Copper and 1.11-24.35 % of Zinc at sites exist in exchangeable fraction and therefore, they are in low risk category. While 7.34-34.90 of Ni at sites exists in exchangeable fraction and therefore, it is in medium risk category to aquatic environment.
Nucleation and Atmospheric Aerosols, 2022
The trace metals (Cd, Cu, Pb, Zn, Ni, and Fe) content of certified reference marine sediments PAC... more The trace metals (Cd, Cu, Pb, Zn, Ni, and Fe) content of certified reference marine sediments PACS-2 and PACS-3 were determined by flame atomic absorption spectrometry. This study aims to ensure the accuracy of a method. The reference sediments are digested with methods 3050B (nitric acid, hydrogen peroxide, hydrochloric acid). Data were collected within seven consecutive years from 2013-2019. The results showed that the percentage recovery of five metals ranged from 87%-113% in PACS-2 and 81%-107% in PACS-3, based on the certified values. This study suggests that acid digestion provides a robust method for metals analysis in the sediment sample.
Bulletin of the marine geology, Aug 2, 2017
Heavy metals, hazardous chemical substances, increase in marine environment due to anthropogenic ... more Heavy metals, hazardous chemical substances, increase in marine environment due to anthropogenic discharges. However, due to the hydrodynamic of the marine system these metals could vary both temporal and spatial distribution of metals in Jakarta Bay. This study was to reveal the temporal and spatial distribution of metals in sediment over the bay and to assess the environmental condition. Sediment samples were collected in11 stations of March (transitional season) and June(dry season)2013. The result showed that the concentration of heavy metals varied spatially, in which elevated concentration occurred adjacent terrestrial indicating the enrichment of metal-anthropogenic source, but insignificant temporarily.
Ilmu Kelautan : Indonesian Journal of Marine Sciences, Feb 28, 2019
The assessment of the biological availability of metals is rarely used only by knowing the total ... more The assessment of the biological availability of metals is rarely used only by knowing the total concentration of the metal. Therefore, six sediment samples from Muara Angke, Teluk Jakarta were assessed the chemical speciation of heavy metals. This study aims to determine metal speciation using the BCR sequential extraction procedure and to determine metal speciation to evaluate bioavailability in the sediments of Muara Angke, Jakarta Bay. In sediment from Muara Angke, the ability to move sequence of heavy metals studied was Pb>Zn>Cu>Ni. The mostly accumulated in the non-residual fraction of the total concentrations are Cu, Ni, Pb and Zn which indicated that the mobility and anthropogenic inputs of these metals in Muara Angke were quite high. The Risk Assessment Code (RAC) reveal that Zn and Ni at almost station exist in exchangeable and a fraction of carbonate-bound and therefore high-risk category. Most of the Cu at most of the station is in the oxidizable fraction, except a small portion found at all station is in the exchangeable fraction and fraction of carbonate-bound thus posing a low risk for the waters environment. The patterns of Pb speciation show no to low risk to the waters environment. However, metal observations in the waters are necessary because they are persistent and can accumulate which threatening the water environment.
Oseanologi di Indonesia, Jul 9, 2020
Aktivitas perekonomian yang terus meningkat di wilayah pesisir utara Jawa, berpotensi menyumbangk... more Aktivitas perekonomian yang terus meningkat di wilayah pesisir utara Jawa, berpotensi menyumbangkan kontaminan antropogenik yang mengancam kualitas perairan pesisir dan estuari Cimanuk di Indramayu. Logam berat yang merupakan salah satu limbah dari aktifitas tersebut belum dipelajari secara terperinci. Penelitian ini bertujuan untuk menentukan distribusi dari logam Cu, Pb, Cd, Zn, dan Ni yang terlarut dalam air laut dan dalam sedimen di Estuari Cimanuk. Pengambilan sampel air laut dan sedimen dilakukan pada Bulan Mei 2017 di 18 stasiun. Sampel air laut diekstraksi menggunakan metode ektraksi balik (back extraction) sementara sampel sedimen diekstraksi menggunakan asam sesuai metode USEPA 3050B. Pengukuran logam berat dari ekstrak air laut ataupun sedimen dilakukan menggunakan Flame Absorption Spectrophotometry berdasarkan metode USEPA 3050B. Distribusi spasial logam berat dalam air laut dan sedimen dimodelkan menggunakan ArcGIS® versi 10.6.1. Hasil penelitian menunjukkan konsentrasi logam terlarut dalam air laut untuk Cu, Pb, Cd, Zn, dan Ni adalah 0,0004-0,0038 mg/L (Cu), <0,0001-0,0044 mg/L (Pb), 0,0002-0,0003 mg/L (Cd), 0,0005-0,0119 mg/L (Zn), dan 0,0020-0,0052 mg/L (Ni). Konsentrasi logam dalam sedimen adalah 12,36-54,08 mg/kg (Cu), 6,43-15,72 mg/kg (Pb), 0,07-0,37 mg/kg (Cd), 64,53-85,16 mg/kg (Zn), dan 19,66-62,85 mg/kg (Ni). Model distribusi spasial menunjukkan bahwa logam berat dalam air laut maupun sedimen menunjukkan pola yang identik. Logam dengan konsentrasi tinggi umumnya terdeteksi di stasiun yang berlokasi dekat dengan daratan, mengindikasikan bahwa logam berat mengalami pengayaan yang berasal dari aktivitas antropogenik daratan.
Elsevier eBooks, 2021
Abstract The presence of heavy metals in the aquatic environment impacting on human health is one... more Abstract The presence of heavy metals in the aquatic environment impacting on human health is one of the most pressing concerns in the current industrialized era. Bioelectrochemical technology employs living microbials as biocatalysts to remove the metal ions in aqueous solution via a reduction–oxidation mechanism, offering potential advantages that is more sustainable than the conventional method. In addition, it could recover the metal ions into their low oxidation states which have potential economic value. This chapter summarizes the application of bioelectrochemical systems on metal removal, either using microorganisms originating from freshwater or marine selected species. The basic theory of the process is discussed first. The optimizing process is also evaluated to pinpoint the advantages and the drawbacks of the process.
Marine Pollution Bulletin, Jul 1, 2023
Environmental Science and Pollution Research
Environmental Science and Pollution Research
Marine Pollution Bulletin