scholarly journals Kontaminasi logam nikel (Ni) pada struktur jaringan ikan

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Muhammad Aris ◽  
Tamrin A. Ibrahim ◽  
Lidiawati Nasir
Keyword(s):  
Heavy Metals ◽  
Immune System ◽  
Stress Response ◽  
Metal Contamination ◽  
Soil Washing ◽  
Mining Industry ◽  
Tissue Structure ◽  
Nickel Metal ◽  
Industrial Activities ◽  
Conducting Research

The development and progress in the mining industry has created an opportunity for the concentration of heavy metals to increase uncontrolled in waters and lead to degradation of fishery resources. Heavy metals are one of the pollutants from industrial activities that enter directly into the waters through rainwater and soil washing and river flows which are then absorbed and metabolized by microorganisms. Heavy metals are difficult to degrade and are actively involved in the food chain. Microorganisms feed molluscs, crustaceans and fish which are a source of protein for humans. Nickel metal (Ni) is a metal that can cause a stress response in fish which results in impaired growth, immune system, and changes in tissue structure. This brief review aims to enrich the scientific repertoire of nickel (Ni) metal contamination in fish and its impact on humans. This review is a non-experimental research by conducting research around the literature

scholarly journals Toksisitas Merkuri (Hg) pada struktur jaringan ikan

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Tamrin A. Ibrahim ◽  
Muhammad Aris
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Immune System ◽  
Stress Response ◽  
Experimental Research ◽  
Food Chain ◽  
The Body ◽  
Tissue Structure ◽  
Industrial Activities ◽  
Conducting Research

The problem of pollution that occurs in the aquatic environment is getting out of control and causes the degradation of fishery resources which are important for humans. One of the pollutants from industrial activities is heavy metal. There are various kinds of heavy metals, mercury (Hg) is the most dangerous heavy metal. Mercury (Hg) enters directly into the waters through rainwater and leaching the soil and river flows which are then absorbed and metabolized by microorganisms. Mercury (Hg) is difficult to degrade from the body, because mercury (Hg) is actively involved in the food chain. Microorganisms feed molluscs, crustaceans and fish which are a source of protein for humans. Mercury (Hg) toxicity in fish can result in a stress response in fish which results in impaired growth, immune system, and changes in tissue structure. This brief review aimed to enrich the scientific repertoire of the toxicity of mercury (Hg) in fish and its effects on humans. This review was a non-experimental research by conducting research around the literature

scholarly journals Removal of Heavy Metal using Non-ionic Surfactant: A Review

2021 ◽  
Author(s):  
Felicia Alice Bayi ◽  
Amira Satirawaty Mohamed Pauzan
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Contamination ◽  
Surfactant Concentration ◽  
Heavy Metal Contamination ◽  
Soil Washing ◽  
Quality Parameters ◽  
Ionic Surfactant ◽  
Water And Wastewater Treatment ◽  
Triton X

In emerging countries, heavy metal contamination is becoming more of a problem. Because of poor water and wastewater treatment, as well as increased industrial activities, heavy metal contamination in rivers, lakes, and other water sources has increased in developing countries. Non-ionic surfactants like Triton X-100 and Triton X-114 have been widely utilized to remove heavy metals from water, soil, and sediments via cloud point extraction and soil washing. The effectiveness of non-ionic surfactant to remove heavy metal was determined by the study of effect of the parameters which are pH, surfactant concentration, temperature, and presence of natural organic matter (NOM). Based on the overall study, non-ionic surfactant efficiency in removing heavy metals is strongly reliant on water and soil quality parameters such as pH, surfactant concentration, and temperature, as well as the surfactant's characteristics.

scholarly journals Mineral Processing Technologies for the Remediation of Soils Polluted by Trace Elements

Proceedings ◽  
2018 ◽  
Vol 2 (23) ◽  
pp. 1458
Author(s):  
Carlos Boente ◽  
Carlos Sierra ◽  
Eduardo Rodríguez-Valdés ◽  
Diego Baragaño ◽  
José Luis Rodríguez Gallego ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Froth Flotation ◽  
Soil Washing ◽  
Pilot Scale ◽  
Mineral Processing ◽  
Polluted Soils ◽  
Processing Technologies ◽  
Industrial Activities ◽  
Remediation Technology ◽  
Study Sites

Soil washing is a remediation technology based on the adaptation of techniques habitually used in mineral processing to recover contaminants from polluted soils. Its main scope is the reduction of the total volume of contaminated soil, which could later be treated by biological, chemical, or thermal procedures. Since the contaminants are usually associated to the soil finer fractions, direct classification is the most widely employed technique. Moreover, other procedures, such as indirect classification, density and magnetic separation, as well as froth flotation are also extended. Soil washing is usually applied by means of on-site mobile plants which are located in the study sites. However, previously to these field applications, a detailed soil characterization and some trials are required in order to optimize the process. In this work, soils affected by heavy metals as a result of mining, metallurgical, and industrial activities are evaluated and pilot-scale treated. The diversity of soils and residues treated, together with the variety of the methodologies employed enabled the elaboration of a general feasibility protocol.

scholarly journals Heavy metal contamination in surface water of Mohammedia wetland, Morocco

2021 ◽  
Vol 298 ◽  
pp. 05001
Author(s):  
Halima Jounaid ◽  
El Mehdi El Hachimi ◽  
Nihad Chakri ◽  
Toufik Remmal ◽  
Btissam Elamrani ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Surface Water ◽  
Surface Waters ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Field Observations ◽  
Metal Concentrations ◽  
Industrial Activities ◽  
Heavy Metal Concentrations

Assessing heavy metal concentrations in wetlands and identifying sources of metal contamination are critical steps in protecting wetlands. Using seven sampling stations, we evaluated the spatial variation of some heavy metal concentrations in surface waters of the Mohammedia wetland and a selected segment of the El Maleh wadi that feeds the wetland. Field observations made it possible to identify and map the pollution discharged into El Maleh wadi, carrying heavy metals into the wetland. The analyses showed that the concentrations of lead, manganese, and cadmium far exceed the thresholds relating to fish life in 100% of sampling stations. All the evidence points to heavy metals contamination of surface water in Mohammedia wetland, generated by industrial activities, wastewater discharges, and leachate from the old landfill located upstream.

COPPER AND ZINC INDUCED CHANGES IN SOYBEAN (Glycine max (L.) Merr.)

1970 ◽  
pp. 09
Author(s):  
K. SANKAR GANESH ◽  
P. SUNDARAMOORTHY
Keyword(s):  
Heavy Metals ◽  
Glycine Max ◽  
Aquatic Environment ◽  
Morphological Traits ◽  
Industrial Activities ◽  
Copper And Zinc ◽  
Glycine Max L ◽  
Zinc Concentrations ◽  
Induced Changes

Heavy metals are one of the most important pollutants released to the aquatic environment by the various industrial activities. The use of these wastewater for irrigation results accumulation of heavy metals in soil and plants. So, the present investigation deals with the various concentrations (0, 5, 10, 25, 50, 100, 200 and 300 mg/l) of copper and zinc on germination studies of soybean. The different concentrations of copper and zinc were used for germination studies. The seedlings were allowed to grow upto seven days. The studied morphological traits increased at 5 mg/l concentration and these parameters are gradually decreased with the increase of copper and zinc concentrations.

Remediation of Heavy Metals Contaminated Soil and Soil Washing

2015 ◽  
Vol 5 (3) ◽  
pp. 1-6 ◽  
Author(s):  
Zainab Siddiqui ◽  
◽  
S.M Ali Jawaid ◽  
Sandeep Vishen ◽  
Shreya Verma ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Contaminated Soil ◽  
Soil Washing

A brief Survey of Assessment models to Predict stress Level of Heavy Metals in Soils

2020 ◽  
Vol 13 ◽  
Author(s):  
Sangeetha Annam ◽  
Anshu Singla
Keyword(s):  
Economic Growth ◽  
Heavy Metals ◽  
Heavy Metal ◽  
Ecological Risk ◽  
Stress Level ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Human Life ◽  
High Stress ◽  
Heavy Metal Stress

Abstract: Soil is a major and important natural resource, which not only supports human life but also furnish commodities for ecological and economic growth. Ecological risk has posed a serious threat to the ecosystem by the degradation of soil. The high-stress level of heavy metals like chromium, copper, cadmium, etc. produce ecological risks which include: decrease in the fertility of the soil; reduction in crop yield & degradation of metabolism of living beings, and hence ecological health. The ecological risk associated, demands the assessment of heavy metal stress levels in soils. As the rate of stress level of heavy metals is exponentially increasing in recent times, it is apparent to assess or predict heavy metal contamination in soil. The assessment will help the concerned authorities to take corrective as well as preventive measures to enhance the ecological and hence economic growth. This study reviews the efficient assessment models to predict soil heavy metal contamination.

scholarly journals Proteogenomic Analysis of Burkholderia Species Strains 25 and 46 Isolated from Uraniferous Soils Reveals Multiple Mechanisms to Cope with Uranium Stress

Cells ◽  
2018 ◽  
Vol 7 (12) ◽  
pp. 269 ◽  
Author(s):  
Meenakshi Agarwal ◽  
Ashish Pathak ◽  
Rajesh Rathore ◽  
Om Prakash ◽  
Rakesh Singh ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Stress Response ◽  
Proteomic Analysis ◽  
Protein Biosynthesis ◽  
Draft Genome ◽  
Department Of Energy ◽  
Coding Sequences ◽  
Total Rna ◽  
A Genome ◽  
Rna Genes

Two Burkholderia spp. (strains SRS-25 and SRS-46) were isolated from high concentrations of uranium (U) from the U.S. Department of Energy (DOE)-managed Savannah River Site (SRS). SRS contains soil gradients that remain co-contaminated by heavy metals from previous nuclear weapons production activities. Uranium (U) is one of the dominant contaminants within the SRS impacted soils, which can be microbially transformed into less toxic forms. We established microcosms containing strains SRS-25 and SRS-46 spiked with U and evaluated the microbially-mediated depletion with concomitant genomic and proteomic analysis. Both strains showed a rapid depletion of U; draft genome sequences revealed SRS-25 genome to be of approximately 8,152,324 bp, a G + C content of 66.5, containing a total 7604 coding sequences with 77 total RNA genes. Similarly, strain SRS-46 contained a genome size of 8,587,429 bp with a G + C content of 67.1, 7895 coding sequences, with 73 total RNA genes, respectively. An in-depth, genome-wide comparisons between strains 25, 46 and a previously isolated strain from our research (Burkholderia sp. strain SRS-W-2-2016), revealed a common pool of 3128 genes; many were found to be homologues to previously characterized metal resistance genes (e.g., for cadmium, cobalt, and zinc), as well as for transporter, stress/detoxification, cytochromes, and drug resistance functions. Furthermore, proteomic analysis of strains with or without U stress, revealed the increased expression of 34 proteins from strain SRS-25 and 52 proteins from strain SRS-46; similar to the genomic analyses, many of these proteins have previously been shown to function in stress response, DNA repair, protein biosynthesis and metabolism. Overall, this comparative proteogenomics study confirms the repertoire of metabolic and stress response functions likely rendering the ecological competitiveness to the isolated strains for colonization and survival in the heavy metals contaminated SRS soil habitat.

scholarly journals HSF1 mediated stress response of heavy metals

PLoS ONE ◽  
2018 ◽  
Vol 13 (12) ◽  
pp. e0209077 ◽  
Author(s):  
Christoph Steurer ◽  
Noreen Eder ◽  
Sarah Kerschbaum ◽  
Christina Wegrostek ◽  
Stefan Gabriel ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Stress Response

scholarly journals TINGKAT BIOKONSENTRASI LOGAM BERAT DAN GAMBARAN HISTOPATOLOGI IKAN MUJAIR (Oreochromis Mossambicus) YANG HIDUP DI PERAIRAN TUKAD BADUNG KOTA DENPASAR

2015 ◽  
Vol 9 (1) ◽  
pp. 25
Author(s):  
Made Rahayu Kusumadewi ◽  
I Wayan Budiarsa Suyasa ◽  
I Ketut Berata
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Hexavalent Chromium ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Quality Standards ◽  
Oreochromis Mossambicus ◽  
Metal Exposure ◽  
Histopathological Changes ◽  
Food Ingredient

Tukad Badung River is one of the potential contamination of heavy metal sare very highin the city of Denpasar. Tilapia (Oreochromis mossambicus) isa commonspecies of fish found in the river and became the object of fishing by the public. The fish is usually consume das a food ingredient forever yangler. Fish can be used as bio-indicators of chemical contamination in the aquatic environment. Determination of heavy metal bioconcentration and analysis of liver histopathology gills organs and muscles is performed to determine the content of heavy metals Pb, Cd, and Cr+6, and the influence of heavy metal exposure to changes in organ histopathology Tilapia that live in Tukad Badung. In this observational study examined the levels of heavy metal contamination include Pb, Cd and Cr+6 in Tilapia meat with AAS method (Atomic Absorption Spectrofotometric), and observe the histopathological changes in organ preparations gills, liver, and muscle were stained with HE staining (hematoxylin eosin). Low Pb content of the fish that live in Tukad Badung 0.8385 mg/kg and high of 20.2600 mg/kg. The content of heavy metals Pb is above the quality standards specified in ISO 7378 : 2009 in the amount of 0.3 mg / kg. The content of Cr+6 low of 1.1402 mg / kg and the highest Cr+6 is 6.2214 mg / kg. The content of Cr+6 is above the quality standards established in the FAO Fish Circular 764 is equal to 1.0 mg / kg. In fish with Pb bioconcentration of 0.8385 mg / kg and Cr+6 of 1.1402 mg / kg was found that histopathological changes gill hyperplasia and fusion, the liver was found degeneration, necrosis, and fibrosis, and in muscle atrophy found. Histopathologicalchangessuch asedema and necrosis ofthe liveris foundin fishwith Pb bioconcentration of 4.5225mg/kg and Cr+6 amounted to2.5163mg/kg. Bio concentration of heavy metal contamination of lead (Pb) and hexavalent chromium (Cr+6) on Tilapia ( Oreochromis mossambicus ) who lives in Tukad Badung river waters exceed the applicable standard. Histopathological changes occur in organs gills, liver, and muscle as a result of exposure to heavy metals lead and hexavalent chromium. Advised the people not to eat Tilapia that live in Tukad Badung

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