scholarly journals PRESIPITASI LOGAM BERAT LIMBAH CAIR LABORATORIUM MENGGUNAKAN NATRIUM SULFIDA DARI BELERANG ALAM

2020 ◽  
Vol 10 (2) ◽  
pp. 61
Author(s):  
Wisni Rona Anami ◽  
Mamay Maslahat ◽  
Dian Arrisujaya
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Sodium Sulfide ◽  
Precipitation Efficiency ◽  
Metal Precipitation ◽  
Initial Ph ◽  
Sulphide Precipitation ◽  
Optimal Efficiency ◽  
Precipitation Phase

Precipitation of Laboratory Wastewater Heavy Metals by Natural Sulphur Sodium Sulfide Sodium sulfide (Na2S) from natural sulfur has been used for heavy metal precipitation from laboratory wastewater. Heavy metals in laboratory wastewater include mercury (Hg), lead (Pb), chromium (Cr) and zinc (Zn). Initial laboratory wastewater testing was performed by measuring the initial pH and the concentration of heavy metals in the wastewater prior to precipitation using the atomic absorption spectrophotometer. Sulphide precipitation phase consists of variations in the concentration of NaOH, time, temperature, and volume of dissolving Na2S. Parameters for the efficiency of Hg, Pb, Zn and Cr heavy metal precipitation were the initial pH, concentration and rate of stirring of the solution. Results showed that the optimum precipitation efficiency for Zn is achieved by using 10 % Na2S solution with an efficiency of 97.93 %. The most significant reduction in Cr and Hg was the use of 20 % Na2S solution with a precipitation efficiency of 99.24 % and 99.76 % respectively. The optimal efficiency for Pb with a 30 % Na2S solution was 99.68 %. Natural sulfur can reduce the levels of heavy metals in laboratory wastewater by precipitation.Key words: Natural sulfur, Heavy metals, Precipitation, Sodium sulfide, ABSTRAKPresipitasi logam berat dari limbah cair laboratorium telah dilakukan dengan menggunakan natrium sulfida (Na2S) dari belerang alam. Logam berat yang terkandung dalam limbah cair laboratorium diantaranya adalah merkuri (Hg), timbal (Pb), kromium (Cr) dan seng (Zn). Pengujian awal limbah laboratorium dilakukan dengan mengukur pH awal dan kadar  logam  berat  yang  terdapat  dalam  limbah sebelum presipitasi menggunakan pH meter dan spektrofotometer serapan atom. Tahapan presipitasi limbah oleh sulfida meliputi pembuatan variasi konsentrasi NaOH, waktu, suhu, dan volume pelarutan Na2S. Parameter efisiensi presipitasi logam Hg, Pb, Zn, dan Cr meliputi pH, Konsentrasi dan Kecepatan pengadukan. Hasil  penelitian  menunjukkan  efisiensi pengendapan optimal untuk logam Zn terdapat pada penggunaan larutan Na2S 10% dengan efisiensi 97,93%. Larutan Na2S 20% paling banyak menurunkan logam Cr dan Hg dengan efisiensi masing-masing sebesar 99,24% dan99,76%. Efisiensi optimal untuk logam Pb berada pada penggunaan larutan Na2S 30% dengan efisiensi 99,68%. Belerang  alam  mampu  menurunkan kadar logam berat dalam limbah cair laboratorium dengan metode presipitasi.Kata kunci: Belerang alam, Logam berat, Presipitasi, Natrium sulfida

scholarly journals Studi Penurunan Kadar Logam Besi (Fe) dan Logam Tembaga (Cu) pada Air Embung Menggunakan Adsorben Nanosilika

2017 ◽  
Vol 17 (2) ◽  
pp. 131
Author(s):  
Emas Agus Prastyo Wibowo ◽  
Ika Sri Hardyanti ◽  
Isni Nurani ◽  
Dyan Septyaningsih Hardjono HP ◽  
Aden Dhana Rizkita
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Water Use ◽  
Metal Content ◽  
Atomic Absorption Spectrophotometer ◽  
Absorption Method ◽  
Wastewater Purification ◽  
Stirring Time ◽  
Independent Variable

STUDI PENURUNAN KADAR LOGAM BESI (Fe) DAN LOGAM TEMBAGA (Cu) PADA AIR EMBUNG MENGGUNAKAN ADSORBEN NANOSILIKAABSTRAKPolusi limbah logam berat dalam air merupakan satu permasalahan lingkungan yang penting. Dalam mengatasi permasalahan tersebut dapat dilakukan purifikasi terhadap air tersebut. Metode yang dapat digunakan untuk purifikasi limbah sangat beragam salah satunya adalah absorpsi. Secara umum metode absorpsi telah banyak digunakan dalam purifikasi air limbah. Metode absorpsi dapat menurunkan kadar logam yang terlarut pada limbah. cair dengan cara menyerap logam-logam tersebut ke dalam permukaan absorbennya. Tujuan dilakukan penelitian ini adalah  untuk menurunkan konsentrasi logam besi (Fe) dan tembaga (Cu) menggunakan adsorben nanosilika. Penelitian ini menggunakan variabel bebas yaitu waktu pengadukan (20 menit, 40 menit, dan 60 menit). Hasil akhir filtrat air embung kemudian diukur absorbansinya menggunakan Spektrofotometer Serapan Atom. Berdasarkan hasil analisa menggunakan instrumen SSA diperoleh hasil bahwa tidak terjadi penurunan logam Fe maupun Cu. Dalam hal ini terjadi peningkatan konsentrasi dalam logam Fe maupun Cu, hal ini dikarenakan kurangnya waktu pengadukan dan pengaruh dari adsorben nanosilika.Kata Kunci: limbah, logam berat, nanosilika STUDY OF DECREASING METALS IRON (Fe) AND COPPER (Cu) ON EMBUNG WATER USE OF NANOSILICA ADSORBEN ABSTRACTHeavy waste pollution of heavy metals in the water is an important environment issue. To solve the problem, its can be purified the water. The methods that can be used for waste purification are very diverse, one of which is absorption. In general, the method of absorption has been widely used in wastewater purification. The absorption method can decrease dissolved metal content in the waste. liquid by absorbing the metals into the absorbent surface. Research has been conducted to reduce the concentration of iron (Fe) and copper (Cu) by using nanosilica adsorbent. This research used to independent variable that is stirring time (20 minutes, 40 minutes, and 60 minutes). The final result of filtrate embung water then measured its absorbance using Atomic Absorption Spectrophotometer (AAS). Based on the result of the analysis using SSA instrument, it is found that there is no decrease of Fe and Cu metals. There are several reasons for those problem such as due to lack of stirring time and the influence of nanosilica adsorbent.Keywords: Waste pollution, heavy metal, nanosilica

scholarly journals Kandungan Logam Berat Besi (Fe) Pada Air, Sedimen, Dan Kerang Hijau (Perna viridis) Di Perairan Tanjung Emas Semarang

2015 ◽  
Vol 18 (1) ◽  
Author(s):  
Endang Supriyantini ◽  
Hadi Endrawati
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Flow Velocity ◽  
Atomic Absorption ◽  
Key Words ◽  
Atomic Absorption Spectrophotometry ◽  
Pollution Level ◽  
Perna Viridis ◽  
Absorption Spectrophotometry ◽  
Living Organisms

Logam berat Fe merupakan logam berat essensial yang keberadaannya dalam jumlah tertentu sangat dibutuhkan oleh organisme hidup, namun dalam jumlah yang berlebih dapat menimbulkan efek racun.Penelitian ini bertujuan untuk menganalisis kandungan dan tingkat pencemaran logam berat Fe pada air, sedimen, dan kerang hijau (Perna viridis) di perairan Tanjung Emas Semarang. Penelitian ini dilaksanakan pada tanggal 7 November dan 7 Desember 2013 dengan metode penelitian deskriptif. Logam berat Fe dalam sampel air, sedimen dan kerang hijau dianalisis di Laboratorium Balai Besar Teknologi Pencegahan Pencemaran Industri (BTPPI) Semarang dengan menggunakan metode AAS (AtomicAbsorption Spectrophotometry). Hasil penelitian menunjukkan bahwa perairan Tanjung Emas masih dalam taraf terkontaminasi logam Fe. Sedangkan pada sedimen dan pada kerang hijau (Perna viridis) sudah terindikasi tercemar logam Fe.Meskipun demikian variasi faktor lingkungan seperti suhu, salinitas, pH, kecepatan arus dan jenis sedimen juga memberikan kontribusi yang cukup penting terhadap kandungan logam Fe.Kata Kunci: logam Fe, Air, Sedimen, Perna viridis, metode AAS Heavy metalsiron(Fe) is anessentialheavy metalswhose presencein a certain amountis neededby living organisms, but inexcessiveamountscan causetoxic effects.The aims of the research is to analyze the heavy metals coccentration and the pollution level of Fe in water, sediment, and green mussels (Perna viridis) at Tanjung Emas Semarang. This research was conducted from 7 November and 7 December 2013 using the Atomic Absorption Spectrophotometry (AAS) and research methodswithdescriptive. The results showed that the waters of the Tanjung Emas is still in the stage of heavy metals contaminated iron (Fe). Sediment and green mussels (Perna viridis)already indicated heavy metal contaminatediron. However, variations inenvironmental factorssuch astemperature, salinity, pH, flow velocity an dsediment types also providean important contributionto heavy metal contentof iron(Fe).Key Words: Fe, water, sediment, Perna viridis, metode AAS

scholarly journals Health Risk Assessment of Heavy Metals in Traditional Cosmetics Sold in Tunisian Local Markets

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Mohamed Anouar Nouioui ◽  
Salah Mahjoubi ◽  
Asma Ghorbel ◽  
Marouen Ben Haj Yahia ◽  
Dorra Amira ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Heavy Metal ◽  
Health Risk ◽  
Atomic Absorption ◽  
Good Manufacturing Practice ◽  
Potential Threat ◽  
Analytical Test ◽  
Metal Contents ◽  
Cu And Zn

This study was undertaken in order to determine heavy metal contents in twelve (n=12) henna brands and eleven (n=11) kohl products. An analytical test was performed for Pb, Cd, Cu, and Zn in henna and kohl products using atomic absorption spectrophotometery. The overall mean concentrations of heavy metals in henna varied between 1.2 and 8.9 μg g−1 for Pb; 0.8 and 18.6 μg g−1 for Cd; 0.5 μg g−1 and 3.3 μg g−1 for Cu; and 3.7 μg g−1 and 90.0 μg g−1 for Zn. As for kohl products, Pb concentrations ranged between 51.1 μg g−1 and 4839.5 μg g−1, Cd concentrations ranged between 1.0 μg g−1 and 158.6 μg g−1, Cu concentrations ranged between 2.5 μg g−1 and 162.5 μg g−1, and Zn concentrations ranged between 0.7 μg g−1 and 185.0 μg g−1. The results of our study revealed that Pb, Cd, Cu, and Zn contents in investigated samples were high, making from the prolonged use of such products a potential threat to human health. Therefore, major quality controls are recommended in order to enforce acceptable limits of potential contaminants in cosmetics and good manufacturing practice.

Element Content (Cu, Fe, Mn, Ni, Pb, and Zn) of the Ruderal Plant Verbascum olympicum Boiss. from East Mediterranean

2006 ◽  
Vol 61 (5-6) ◽  
pp. 357-362 ◽  
Author(s):  
Gürcan Güleryüz ◽  
Hülya Arslan ◽  
Belgin İzgi ◽  
Şeref Güçer
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Metal Content ◽  
Element Content ◽  
East Mediterranean ◽  
Metal Contents ◽  
Accumulation Capacity ◽  
Highly Correlated ◽  
Ruderal Plant

In this study, heavy metal content (Cu, Fe, Mn, Ni, Pb, Zn) was determined in soils and different organs of Verbascum olympicum Boiss. This species is endemic to Uludağ and spreads on destroyed areas such as: roadsides, developed building areas, ski lift stations and sheep folds. Soils and different organs (roots, stems, leaves and flowers) of plant samples were analyzed using an atomic absorption spectrophotometer for determining the element content. Heavy metal contents in soils and different organs in this species were highly correlated (P < 0.05). However, the contribution of plant organs to the accumulation capacity varied according to the metal. These results suggest that this species may be useful as a bioindicator for heavy metals.

Assessment of some heavy metals concentration in soil and irrigated vegetable (Hibiscus sabdariffa) in Mubi Metropolis

2018 ◽  
Vol 3 (01) ◽  
pp. 1-5
Author(s):  
I. D. Bake ◽  
H E. Shehu ◽  
H. M. Dzara
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Agricultural Soil ◽  
Research Work ◽  
Pollution Index ◽  
Heavy Metal Concentration ◽  
Hibiscus Sabdariffa ◽  
Zn Concentration ◽  
Negative Effect

This research work aimed at assessment of some heavy metal concentration (Fe, Mn, Cu, Ni, Pb, Zn) in soil and their uptake by Hibiscus sabdariffa vegetable in irrigation areas, and to ascertain the danger posed from the consumption of these vegetable to human health. Samples were collected from four different locations and analyzed using bulk scientific Atomic Absorption Spectrophotometer (AAS). The concentration of heavy metals (mg/kg) in agricultural soil collected from different sites along river Yadzaram ranged from 8.33 to 15.54 for Fe, 0.051 to 0.227 for Cu, 7.245 to 8.545 for Mn, 0.001 to 0.002 for Ni, 0.474 to 1.744 for Zn, and 0.001 to 0.005 for Pb. Fe concentration in plants (Hibiscus sabdariffa) ranged between 6.50 to 16.42 mg/kg in all four sites of the studied area, Cu values ranged between 0.30 to 0.72 mg/kg. The concentration of Mn in plants ranged from 2.73 to 12.09 mg/kg, Ni concentration in plant samples from four site varied from 0.001 to 0.004 mg/kg, Zn concentration varied from 0.98 to 1.99 mg/kg and Pb range values of 0.00 to 0.007 mg/kg. The contamination/ pollution index of heavy metals calculated for soil revealed that all sites were polluted with Fe at Kwacham, Wuro-gude, Kwachiffa and Sabon Gari site which suggested that it might pose negative effect on plants and soil environments while Ni, Zn, Mn, Cu and Pb are below range and will have no negative effect on soil, plant and environments.

scholarly journals Heavy metal contents of Hg, Cd, Pb, and Cu in splendid ponyfish Eubleekeria splendens (Cuvier, 1829) meat in Banten Bay, Indonesia

2021 ◽  
Vol 322 ◽  
pp. 01022
Author(s):  
Lisbet Sagala ◽  
Sulistiono ◽  
Djamar T.F.L. Batu
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Metal Content ◽  
Accumulation Rate ◽  
Aquatic Organisms ◽  
The Body ◽  
Heavy Metal Content ◽  
Metal Contents ◽  
Observation Period

Banten Bay is an area affected by industrial, shipping, and domestic activities. These have the potential to produce wastes in the form of heavy metals and can accumulate in the body of aquatic organisms such as the splendid ponyfish Eubleekeria splendens (Cuvier, 1829). This study aimed to determine the accumulation of heavy metals Hg, Cd, Pb, and Cu in splendid ponyfish Eubleekeria splendens (Cuvier, 1829) meat in Banten Bay, Serang Regency, Banten Province. Sampling was carried out for three months, from August to October 2020. Analysis of heavy metal content was carried out using AAS (Atomic Absorption Spectrophotometer). The content of heavy metals Hg, Cd, Pb, and Cu in splendid ponyfish meat were <0.030 mg/kg, <0.001 mg/kg, <0.005 mg/kg, and 0.224-0.437 mg/kg. Bioaccumulation of heavy metals Hg, Cd, Pb, and Cu in small and big splendid ponyfish meat has a low accumulation rate. During the observation period, the heavy metal content of Hg, Cd, Pb, and Cu in small and big splendid ponyfish meat was not significantly different.

scholarly journals Uji Kandungan Logam Berat Pb Dan Hg Pada Air, Sedimen Dan Lamun (Enhalus acoroides) Di Perairan Teluk Kayeli Kabupaten Buru Provinsi Maluku

2019 ◽  
Vol 8 (1) ◽  
pp. 9
Author(s):  
Nur Alim Natsir ◽  
Debby A. J Selanno ◽  
Ch.I. Tupan ◽  
Y.T. Male
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Aquatic Environment ◽  
River Estuary ◽  
Enhalus Acoroides ◽  
The Difference ◽  
Living Organisms

The difference in accumulation of lead and mercury heavy metals in water, sediments and seagrass organs Enhalus acoroides (roots, rhizomes and leaves) is found in the waters of Kayeli Bay, Buru Island, Maluku Province. Samples were taken from ten observed station (Kayeli River Estuary, Suket River Estuary, Anahoni River Estuary, Waelata I Estuary, Waelata River Estuary II, Waeapo River Estuary, Sanleko River Estuary, Marlosso River Estuary, Nametek Beach and Jikumerasa Beach). Pb and Hg were analyzed using Atomic Absorption Spectrophotometer. The content of Pb and Hg in sediments is higher than in water. The highest Pb and Hg content is found in the roots then in the rhizoma and leaves (roots> rhizoma> leaves). Seagrass Enhalus acoroides is one of the living organisms that can be used as a bio-indicator of the level of heavy metal pollution in the aquatic environment. Key Words: Enhalus acoroides, Pb, Hg, Bioakumulasi, Bioindicator

scholarly journals Kandungan Logam Berat Timbal (Pb) Dan Kadmium (Cd) Pada Air, Sedimen Dan Organ Mangrove Di Perairan Tulehu

2020 ◽  
Vol 8 (2) ◽  
pp. 149
Author(s):  
NUR ALIM NATSIR ◽  
YUSRIANTI HANIKE ◽  
MUHAMMAD RIJAL ◽  
SUHAEDIR BACHTIAR
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Key Words ◽  
Aquatic Environment ◽  
Aquatic Organisms ◽  
Atomic Absorption Spectrophotometer ◽  
Lead And Cadmium ◽  
Stems And Leaves ◽  
And Control

Differences in the accumulation of heavy metals lead and cadmium in water, sediments and mangrove organs (roots, stems and leaves) found in the waters of Tulehu, Maluku Province. Samples were taken from three observation stations, namely stopping ships that are not operating (station 1), Tulehu harbor (station 2) and Control (station 3). Pb and Cd were analyzed using Atomic Absorption Spectrophotometer. Pb and Cd content in sediments is higher than in water. The highest Pb and Cd content is found in the stems then in the roots and leaves (stems> roots> leaves). Mangroves are one of the aquatic organisms that have the ability to absorb heavy metals in the aquatic environment. Key words: Mangrove, Pb, Cd, Heavy Metal

scholarly journals Heavy Metal Concentration in Eight Fish Species from Epe Lagoon (Nigeria)

2019 ◽  
Vol 21 (1) ◽  
pp. 69-82
Author(s):  
Iyabode Olusola Taiwo ◽  
Olaniyi Alaba Olopade ◽  
Nathanael Akinsafe Bamidele
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Metal Concentration ◽  
Fish Species ◽  
Heavy Metal Concentration ◽  
Atomic Absorption Spectrophotometry ◽  
Human Consumption ◽  
Heavy Metal Concentrations ◽  
Absorption Spectrophotometry

Abstract This research was undertaken to find out the levels of five heavy metals (Cu, Fe, Mn, Pb, and Zn) in the muscles of eight fish species from Epe Lagoon. The levels of heavy metals were determined by atomic absorption spectrophotometry after digestion of the samples using Kjldahl heating digester. The heavy metal concentrations among the fish species were statistically dissimilar (P < 0.5). The heavy metals of Pb, Fe, and Mn were above the FAO/WHO agreeable limits for human consumption.

scholarly journals Analysis of research methodology on the content of heavy metals in sediments on the Indonesian coastal

DEPIK ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 260-266
Author(s):  
Sayed Abdul Azis ◽  
Muhammad Irham ◽  
Sugianto Sugianto ◽  
Ichsan Setiawan ◽  
Amri Adnan
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Activation Analysis ◽  
Atomic Absorption ◽  
Coastal Waters ◽  
Metal Content ◽  
Atomic Absorption Spectrophotometry ◽  
Heavy Metal Content ◽  
Coastal Sediments ◽  
Aas Method

Heavy metal pollution is one of the problems that often occurs in Indonesian coastal waters. Comparative methods of looking at heavy metal content in coastal sediments include a way to show similarities and differences between one or more articles by using certain criteria. Different comparison methods to see the heavy metal content in sediments include the AAS (Atomic Absorption Spectrophotometer) method, AAN (Netron Activation Analysis), Regression, and USEPA methods. Based on the comparison of 2 methods, namely: AAS and AAN methods, the most efficient in analyzing heavy metals in sediments in coastal areas is the Atomic Absorption Spectrophotometry (AAS) method compared to the Neutron Activation Analysis (AAS) method.Keywords:CoastalSedimentHeavy MetalSpectrophotometer

Sign in / Sign up

Export Citation Format

Share Document