Potentially mobile of heavy metals on the surface sediments in tropical hyper-saline and positive estuaries

Silva, Carlos A. Ramos E; Fonseca, Estefan Monteiro da; Grotto, Beatriz Wolf; Souza, Flavo Elano Soares de; Baptista, José Antonio Avelar

doi:10.1590/0001-3765201720170110

Cited by 15 publications

(7 citation statements)

References 41 publications

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“…Rendahnya konsentrasi Pb di stasiun 2 dibandingkan dengan stasiun lainnya juga diduga dipengaruhi oleh pelepasan kembali logam dari sedimen ke kolom perairan, hal ini ditunjukkan dengan tingginya kosentrasi Pb dalam sampel air, meskipun hal tersebut tidak selalu ditunjukkan dengan pola yang sama. Beberapa logam yang terikat sedimen dapat dilepaskan ke kolom air melalui resuspensi sedimen, reaksi desorpsi, reaksi reduksi atau oksidasi tergantung kondisi fisikokimia perairan (Davutluoglu et al, 2011;Silva et al, 2017;Zhuang et al, 2018 (Hidayat, 2012), Sungai di Lokasi Penambangan Emas Tradisional, Desa Boto, Kecamatan Jatiroto yaitu 9-508 mg/kg (Pa et al, 2019). Sementara rata-rata konsentrasi Pb dalam sedimen Muara Sungai Bondet lebih besar jika dibandingkan di Perairan Segara Anakan, Cilacap yaitu 3,96-21,99 mg/kg (Hidayati et al, 2014), Perairan Pulau Bangka yaitu 1,682-16,516 mg/kg (Ahmad, 2013) (Ahmad, 2013).…”

Section: Materi Dan Metodeunclassified

“…Setelah masuk ke perairan, logam berat yang terlarut dalam air akan terakumulasi dalam sedimen (Noegrohati, 2005;Passos et al, 2011;Wulan et al, 2013), atau dapat terlepas kembali ke kolom perairan tergantung kondisi fisika, kimia dan biologi perairan (Sitorus, 2004;Davutluoglu et al, 2011;Silva et al, 2017). Pengukuran logam berat dalam sedimen memberikan indikator yang lebih baik daripada bentuk terlarut.…”

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“…Toksisitas dari logam berat tergantung pada jenis logam, bioavailibilitas, tingkat penyerapan organisme, akumulasi di dalam tubuh dan tingkat ekskresi (Gotze et al, 2014). Hasil penelitian Silva et al (2017) menunjukkan bahwa logam berat Pb memiliki bioavaibilitas paling rendah dibanding dengan logam lain seperti Zn, Cr, Cu dan Cd, sehingga potensi akumulasi dalam sedimen lebih besar. Beberapa penelitian lain juga dilakukan untuk mengukur tingkat pencemaran logam berat dalam sedimen (Ghrefat and Yusuf, 2006;Khaled et al, 2006;Chen et al, 2007;Cevik et al, 2009;Vukovic et al, 2011;Permanawati et al, 2016;Bhuyan et al, 2017;Xu et al, 2017;Chen et al, 2019;Cui et al, 2019;Hoang et al, 2020;Islam et al, 2020).…”

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Distribution and Estimation of Heavy Metal (Pb) Contamination Levels in the Water and Sediment Bondet Estuary, Cirebon

Wahyuningsih¹,

Fatimatuzzahroh²,

Gitarama³

2021

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The water and sediment caused by heavy metal has become a major problem in coastal areas. Heavy metals released into the water binds to particulate matter, accumulate into sediments and its predicted by the pollution assessment method. The aims of this research was to investigate the distribution and contamination levels of Pb in water and sediments of Bondet Estuary. Water and sediments samples were collected from four stations in September 2020. The monitoring data of water quality status, contamination factor (CF), and geo-accumulation index (Igeo) were used to provide a assessment of the Pb contamination. The concentration of Pb in water at all stations (0,024-0,031 mg/L) was higher than the standard surface water, with the status is lightly polluted (class B). CF index for all stations 1 ≤ CF <3 indicates moderate Pb contamination in the sediment, while Igeo for each station is <0, which means no contamination. Overall when referring to some guidelines for sediment standards, Pb concentrations at all stations were still below the standard value for sediment. This study provides a basis for assessing future conditions and risks, so that it can contribute to the management and evaluation of heavy metal contamination in the Bondet Estuary.

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Section: Materi Dan Metodeunclassified

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Distribution and Estimation of Heavy Metal (Pb) Contamination Levels in the Water and Sediment Bondet Estuary, Cirebon

Wahyuningsih¹,

Fatimatuzzahroh²,

Gitarama³

2021

aqs

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“…Several earlier studies mentioned the sequential extraction of hydrocarbons, petroleum, and organic fractions from sedimentary rocks employing multi‐stage consequent recovery. [ 122–124 ] The origin and formation of conventional oil/gas reservoirs are generally different from the oil and other organic matter that can be recovered from source rocks, which are naturally trapped within the kerogen and solid matrix. On the other hand, oil in the reservoir system can be found free within matrix pores of the well.…”

Section: Extraction Techniquesmentioning

confidence: 99%

Applied techniques for residual oil recovery from source rocks: A review of current challenges and possible developments

Abdulkareem

Padmanabhan

2020

Can J Chem Eng

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Depleted fossil fuel resources have led to an investigation of other promising alternatives such as renewable and unconventional energy sources. Shale formations have limited permeability. Therefore, several extraction techniques have been applied to improve residual oil recovery and production. In this work, the techniques applied above ground to extract the organic fractions from oil/gas shale are discussed. Studies related to compositional fractionation, ultrasonic-assisted, microwave-assisted, supercritical fluids, and surface retorting techniques have been conducted systematically in approximately 150 scholarly articles over the past 10 years. The impacts of each technique as well as the drawbacks and challenges are highlighted in this paper. The fractionation techniques are sufficient in general; however, they are time consuming as they include several stages and use a considerable amount of solvents. Ultrasonic and microwave techniques are highly reliant on formation transparency linked to the organic fraction heterogeneous distribution. The surface retorting method, which is highly efficient with up to 90% recovery, for example, the Galoter and Paraho methods, is still dependent on shale particulate size, generates a massive amount of spent shale as waste, and is prominently emissive. Therefore, assessments that can be used to overcome existing drawbacks are considered. This can provide practical insight about these techniques to overcome limitations and concerns in terms of efficiency, cost, environmental issues, and reliability features. The work highlights the dominant extraction techniques for further development.

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“…It has a negative effect on the aquatic environment, the presence of pollutants in the water column, and these contaminations, in extreme concentrations, are considered a limitation in the supply chain and transmission of contamination (Nkwoji et al 2020), in addition to affecting the biota population of the area . According to the source of contamination, pollutants, like heavy metals, are rapidly absorbed by suspended particles in the water column and stored hydro dynamically in water with fine particles of sediment (Al-Saad et al 2016;Silva et al 2017). Creeks are a specific shelter for the massive storage of contaminating materials (Vaalgamaa 2004).…”

Section: Introductionmentioning

confidence: 99%

The effect of oil pollution on community structure of benthic macro ‎invertebrates in the northwest of the Persian Gulf ‎ ‎(Case study: Jafari creek)‎

2024

Global NEST: The International Journal

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<p>This study evaluates the contamination levels of heavy metals and petroleum hydrocarbons in Jafari ‎Creek sediments and the effect of these pollutions on Macrobenthos in 2017. Studies to understand ‎the effect of heavy metal Cadmium, Chromium, Nickel, Lead, Selenium, Zinc, Copper, and ‎Vanadium, and 16 hydrocarbon compounds, organic material, and soil texture on the population of ‎Jafari Creek Macrobenthos in five stations along the estuary and analyzed using standard ‎procedures. The 4 identified Macrobenthos included Bivalvia with 9 species, Gastropoda with 8 ‎species, Crustacea with 7 species, and Polychaeta with 6 species totaling Macrobenthos 3645.14 per ‎square meter. The dominant class was Polychaetes (53.9%), followed by Bivalvia (23.2%), ‎Gastropoda (9.93%), and Crustaceans (15.8%), with slightly different (P<0.05), were in the second ‎and third class. Among the studied metals, zinc, chromium, and nickel had the highest ‎concentration. Among the hydrocarbons, Anthracene at station 1, Fluorene at station 2, ‎Phenanthrene and Dibenzo [A, H] Anthracene at station 3, and Fluoranthene at station 4 with a ‎concentration between <0.01- 0.091 ppm had the highest value. The highest and lowest heavy metal ‎concentrations were measured at station 4 (215.54 ± 14.58 ppm) and station 1 (102.39 ± 24.15 ‎ppm), respectively. In return, stations 1 (0.339 ± 0.074 ppm) and 4 (0.196 ± 0.078 ppm) had the ‎highest and lowest concentration of hydrocarbons, respectively. Regarding the number of identified ‎Macrobenthos, stations 3 and 2, with 1738.64 and 333.28 n/m2 had the highest and lowest numbers, ‎respectively. The class of Crustacea had a positive correlation with zinc, copper, and lead metal and ‎a negative correlation with Selenium. Polychaeta was positively correlated with cadmium and ‎vanadium. Gastropoda had a negative correlation with vanadium and chromium, a positive ‎correlation with lead and hydrocarbons, and Bivalvia correlated negatively with lead and zinc and ‎had a correlation with vanadium. Considering that the areas around Jafari Creek are an industrial, ‎petrochemical, and economic region considered one of the important catchments in the province of ‎Khuzestan, the sediments, water, and animal tissues must be periodically the analysis of heavy ‎metals and oil hydrocarbons should be considered.‎</p>

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Potentially mobile of heavy metals on the surface sediments in tropical hyper-saline and positive estuaries

Cited by 15 publications

References 41 publications

Distribution and Estimation of Heavy Metal (Pb) Contamination Levels in the Water and Sediment Bondet Estuary, Cirebon

Distribution and Estimation of Heavy Metal (Pb) Contamination Levels in the Water and Sediment Bondet Estuary, Cirebon

Applied techniques for residual oil recovery from source rocks: A review of current challenges and possible developments

The effect of oil pollution on community structure of benthic macro ‎invertebrates in the northwest of the Persian Gulf ‎ ‎(Case study: Jafari creek)‎

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