scholarly journals Treatment Study of Brook Water by Using the Ultrafiltration Pilot with Polymeric Membrane

2019 ◽  
Vol 56 (4) ◽  
pp. 986-994
Author(s):  
Laurentiu Tataru ◽  
Narcis Barsan ◽  
Florin Marian Nedeff ◽  
Ion Sandu ◽  
Emilian Mosnegutu ◽  
...  
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Chemical Elements ◽  
Water Source ◽  
Polymeric Membranes ◽  
Polymeric Membrane ◽  
High Concentration ◽  
Aquatic Life ◽  
Technological Processes ◽  
Viable Solution

This work presents an experiment aimed at determining the concentration of heavy metals found in the water resources of natural receivers. Heavy metals are very dangerous both for the aquatic life environment, influencing the health of the respective living beings and for the human health especially if there is an open contact between the human and the respective water source. Due to the different technological processes of the treatment plants, the wastewater, however, contains a high concentration of heavy metals, which means that those technological processes do not fully comply with the legal requirements. A good, viable solution that is being researched more and more at present is the use of types of polymeric membranes, suitably adapted in ultrafiltration processes of wastewater. Many of today s advanced researches focus on investigating the retention of heavy metals by membranes. The purpose of this work is to determine the concentration of the main heavy metals such as Fe2+, Zn2+, Cu2+, Pb2+, Ni2+, Mn2+, etc. and other elements such as: Fluorides, Nitrites NO2-N, Phosphates PO4-P, Ammonium NH4-N etc, both before using an organic membrane of PAN from hollow fibers and after cessation of the ultrafiltration experiment to determine the % of the respective metals. can be removed after the ultrafiltration process. The results of the analyzes carried out during the experiment showed that some of the above mentioned chemical elements can be retained by more than 85 % so that a membrane of PAN can reduce the degree of pollution of the waste water, especially where the waste water is directly discharged into natural source of water. At the same time, 14 chemical elements present in the waste water were analyzed and after determining the concentration of the heavy metals after the completion of the experiment it can be confirmed that the use of polymeric membranes is and will be a viable solution for the purpose of protecting the environment and health.

Peculiarities of Recultivating the Ash Dump of Power Station-1 in the City of Khabarovsk

2014 ◽  
Vol 1051 ◽  
pp. 444-447
Author(s):  
A.A. Suprunova ◽  
L.T. Krupskaya ◽  
T.G. Borzenkova
Keyword(s):  
Heavy Metals ◽  
Chemical Elements ◽  
Research Work ◽  
Climatic Conditions ◽  
High Concentration ◽  
Power Station ◽  
Migration Intensity ◽  
Strong Winds ◽  
High Level ◽  
The City

The article presents the results of the research work on the peculiarities of recultivation of the ash dumps of power station No1 (PS1) in the city of Khabarovsk. The research showed that the climatic conditions of the region promote the dust dispersal of toxic agents from the surface of the ash dump. The pollution of the air basin here can be attributed to the extremely high level of pollution (EHP), the priority pollutant is the dust containing heightened concentrations of heavy metals (Pb, Mn, Cu, Cr, Co, Ni, Cd). As a result it leads to the deterioration of the population’s health, especially to the high level of respiratory organs diseases. The research of the sprouting of the herbaceous plants (mixture of timothy-grass, clover and mustard) on prepared model soils showed their healthy growth. The ash chemical composition was studied. It showed high concentration of toxic chemical elements (Hg, Be, Sr, Cd, V, Th, 40K, Cr, Mb, AS, Sb,Se, Te, Pb, Ni, Co). The migration intensity of heavy metals ions into the plants was analyzed. On the basis of the experimental research the optimum composition of the substrate was revealed and recommended for recultivating the ash dump of PS1, namely: soil+sand+ash. Climatic conditions of the Khabarovsk Krai do not permit to recommend the sand+ash substrate for recultivation because of strong winds.

scholarly journals High Concentration of Heavy Metal and Metalloid Levels in Edible Campomanesia adamantium Pulp from Anthropic Areas

2021 ◽  
Vol 18 (11) ◽  
pp. 5503
Author(s):  
David Johane Machate ◽  
Elaine S. de Pádua Melo ◽  
Daniela G. Arakaki ◽  
Rita de Cássia Avellaneda Guimarães ◽  
Priscila Aiko Hiane ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Health Risks ◽  
Chemical Elements ◽  
Hazard Quotient ◽  
Icp Oes ◽  
High Concentration ◽  
Microwave Assisted ◽  
Total Cancer ◽  
Metals And Metalloid

This study aimed to quantify the extent of heavy metal, non-metal and metalloid levels in the Campomanesia adamantium pulp obtained from an area crossed by road experiencing high large vehicle traffic and intensive agriculture modern farming, to monitor the health risks associated with pulp consumption by humans. For this purpose, in three spots located within this area, ripe fruits were collected on the roadside, bush and farm-margin. Pulp samples were digested by microwave-assisted equipment, and chemical elements were quantified by ICP OES. The concentrations of K, Pb, Se, Fe, Mo, Zn, Co, Ni and Mn in the pulp collected in roadside/bush points showed statistical differences (p < 0.05). The heavy metals and metalloid concentrations that exceeded FAO/WHO standards were ordered Pb > As > Mo > Co > Ni > Mn > Cr. Therefore, among these metalloid and heavy metals, As, Pb and Cr were found to be higher in farm-margin > roadside > bush (1.5 × 10−3, 1.1 × 10−3 and 6.2 × 10−4), respectively. Therefore, As is the most important metalloid with higher levels in farm-margin, roadside and bush (1.5 × 10−3, 1.0 × 10−3 and 6.0 × 10−4 > 10−6–10−4 and 3.33, 2.30 and 1.34 > 1), respectively, to total cancer risk and hazard quotient, if 10 g daily of pulp are consumed.

Prospective Sustainability of Utilization of Effective Techniques for Remediation of Heavy Metals From Textile Effluents

2018 ◽  
pp. 19-49
Author(s):  
Bipin Jagdishprasad Agrawal
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Organic Compounds ◽  
Human Body ◽  
Natural Water ◽  
Environmental Concern ◽  
Aquatic Life ◽  
Wet Processing ◽  
Textile Industries ◽  
Natural Water Bodies

Textile industries are one of the prevalent water consumers and contaminators ensuing high generation of waste water. Wastewater from dyeing and printing units is often rich in organic compounds, colours, and heavy metals containing residues of various dyes and chemicals. Among these waste water pollutants, heavy metals are of serious environmental concern in recent years. Metals are extensively used for manufacture of synthetic dyestuffs and for colouration of natural dyes on textiles to achieve different shades and hues. Heavy metals such as lead (Pb), chromium (Cr), cadmium (Cd), iron (Fe), zinc (Zn), copper (Cu), etc. are widely used for production of colour pigments of textile dyes. These heavy metals, highly toxic, get conveyed to the environment, and can bio-accumulate in the human body, aquatic life, natural water-bodies, and also possibly become trapped in the soil. The chapter deals with the utilization of heavy metals in textile wet processing, their important characteristics, various toxic aspects, and different methods for their elimination from the textile effluent liquors.

scholarly journals Concentration of Heavy Metals in the Biot of Lake Radoniqi and Badovci, Food Safety: Study of the Natural Environment in the Republic of Kosovo

2021 ◽  
Vol 16 (2) ◽  
pp. 233-238
Author(s):  
Adem Dreshaj ◽  
Bedri Millaku ◽  
Elvis Elezaj ◽  
Bekë Kuqi
Keyword(s):  
Heavy Metals ◽  
Living Organism ◽  
The Body ◽  
High Concentration ◽  
Aquatic Life ◽  
Fish Organs ◽  
A Cell ◽  
The Republic ◽  
High Concentrations

The purpose of this research is to determine the content of heavy metals in the lakes of Kosovo, lakes with heavy metals such as: (Hg, Cd, Pb, As, Fe, Zn, Ni, Cu), in water and water sediment in Lake Radoniq and Lake Badovc. Determination of heavy metals (Pb, Cd, Hg, As), in muscle tissue and fish organs. Parameters as an indicator of fish safety for food, indicator of environmental pollution (Kosovo lake bioten). Age of fish, the amount of fat are important factors that affect the accumulation of heavy metals in fish. This indicates that the bioaccumulation of heavy metals is a special process and indicates the concentration of heavy metals in the body of the fish. The high concentration of Fe in fish organs is of particular importance for hemoglobin and its role in fish. Metal indicators such as biocumulation factors are different, for example, for Pb can be increased with high concentrations compared to international parameters which depends on the species of fish and the location of catching s137 fish, the concentration of heavy metals in the Lake and the impacts from agricultural activities. The concentration of heavy metals in the body of aquatic life depends on the way in which heavy metals penetrate, giving the body the opportunity to detoxify them through metabolism. Metabolism means the exchange of substances, the uninterrupted exchange of matter between the living organism and the external environment. This process is the basis of life, which allows a cell to grow and reproduce, maintain its structure and respond to its environment.

scholarly journals Identifikasi Lapisan Bawah Permukaan yang Terkontaminasi Lindi Sekitar Sistem Sanitary Landfill di TPA Cahaya Kencana, Kabupaten Banjar

2017 ◽  
Vol 14 (1) ◽  
pp. 46
Author(s):  
Meirani Agustina ◽  
Sri Cahyo Wahyono ◽  
Tetti Novalina Manik
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Water Quality ◽  
Laboratory Test ◽  
Data Processing ◽  
Chemical Elements ◽  
Quality Standard ◽  
Track Length ◽  
Sanitary Landfill ◽  
Water Quality Standard

The landfills (TPA) Cahaya Kencana is applying system Sanitary Landfill, the landfill system that is done by the garbage dumped and compacted, then covered with dirt as cover and carried out continuously each end of the operation. This research is very important investigate the distribution of leachate contaminated leachate approximately systems Sanitary Landfill based on the resistivity value and the content of chemical elements in the holding pond. Based on the results of data processing 2D geoelectric Wenner configuration on four tracks with each track length of 100 m were processed using Res2dinv, obtainable at a depth of between 0.75 – 11.6 m resistivity values in the leachate is 4.34 – 10.0 Ωm track 2, 3, and 4, but are not on track 1. The results of laboratory test on four samples consecutive for content. BOD leachate from 26.2 - 121.0 mg/l; and COD 132.5 – 276.2 mg/l is not exceeded the limit of waste water quality standard, except for sample 4 with a COD value of 472.9 mg/l while for pH 7.24 - 7.39 mg/l and the concentration of heavy metals in leachate outlet still on the threshold of normal, where Pb <0.0019 mg/l; Cd <0.0019 mg/l; and Cr <0,0035mg/l.

TERRITORIES RANKING OF BASHKORTOSTAN ON THE LEVEL OF FOOD PRODUCTS CONTAMINATION

2019 ◽  
pp. 24-27
Author(s):  
R.A. Daukaev ◽  
T.K. Larionova ◽  
G.R. Allayarova ◽  
G.F. Adieva ◽  
S.R. Afon'kina ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Crop Production ◽  
Chemical Elements ◽  
Animal Husbandry ◽  
Substantial Part ◽  
High Concentration ◽  
Statistical Research ◽  
Mass Consumption ◽  
Heavy Metals Accumulation ◽  
The Republic

The article presents results of many years research into the contamination of the environment with heavy metals in various regions of Bashkortostan — a region with a high concentration of industrial production, a developed agricultural complex, and peculiar climatic conditions.We studied the contamination by metals of the main types of foodstuffs for mass consumption (vegetables, meat, milk) produced in the region and making up a substantial part of public food basket of the Republic. Sanitaryhygienic, chemical-analytical and statistical research methods were used. The results of the research allowed to establish chemical elements background levels typical for animal and plant products obtained in specific natural areas with a certain environmental situation, as well as to propose a system for territories ranking by the degree of heavy metals accumulation in animal husbandry and crop production.

ASSESSMENT OF HEAVY METAL CONCENTRATION IN COCONUT WATER

1970 ◽  
pp. 07-10
Author(s):  
MdDidarul Islam, Ashiqur Rahaman, Aboni Afrose
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Heavy Metal Concentration ◽  
Coconut Water ◽  
Toxic Heavy Metals ◽  
High Concentration ◽  
Toxic Heavy Metal ◽  
Low Concentration ◽  
Wet Ashing ◽  
Aas Method

This study was based on determining concentration of essential and toxic heavy metal in coconut water available at a local Hazaribagh area in Dhaka, Bangladesh. All essential minerals, if present in the drinking water at high concentration or very low concentration, it has negative actions. In this study, fifteen samples and eight heavy metals were analyzed by Atomic Absorption Spectroscopy (AAS) method which was followed by wet ashing digestion method. The concentration obtained in mg/l were in the range of 0.3 to 1.5, 7.77 to 21.2, 0 to 0.71, 0 to 0.9, 0 to 0.2, 0.9 to 17.3, 0.1 to 0.9, 0 to 0.9 and 0 to 0.7 for Fe, Ni, Cu, Cd, Cr, Zn, Pb and Se respectively. From this data it was concluded that any toxic heavy metals like Cd, Cr, Pb and Ni exceed their toxicity level and some essential nutrients were in low concentration in those samples. 

Assessment of micro and macro nutrients in poultry feeds available in Dhaka city, Bangladesh.

2017 ◽  
Vol 1 ◽  
pp. 264
Author(s):  
Md Didarul Islam ◽  
Ashiqur Rahaman ◽  
Fahmida Jannat
Keyword(s):  
Heavy Metals ◽  
Adverse Effect ◽  
The Other ◽  
Nutrient Level ◽  
Dhaka City ◽  
Toxic Heavy Metals ◽  
High Concentration ◽  
Low Concentration ◽  
Feed Formulation ◽  
Macro Nutrients

This study was based on to determine the concentration of macro and micro nutrients as well as toxic and nontoxic heavy metals present in the chicken feed available in Dhaka city of Bangladesh. All macro nutrients, if present in the feed at high concentration have some adverse effect, at the same time if this nutrient present in the feed at low concentration this have some adverse effect too. So that this nutrient level should be maintained at a marginal level. On the other side toxic heavy metals if present in the feed at very low concentration those can contaminate the total environment of the ecosystem. In this study six brand samples (starter, grower, finisher and layer) which was collected from different renowned chicken feed formulation industry in Bangladesh. Those samples were prepared for analysis by wet ashing and then metals were determined by Atomic Absorption Spectroscopy. It was found that 27.7 to 68.4, 57.3 to 121.9, 0.21 to 4.1, 0.32 to 2.1, 0.11 to 1.58, 0.28 to 2.11 and 0.28 to 1.78 for zinc, iron, copper, mercury, cadmium, nickel and cobalt respectively. It was found that essential macro and micro nutrients were present in the feed in low concentration on the other side mercury was present in high concentration in the feed samples.

Effect of Irrigation by Waste Water on Accumulation of Heavy Metals in Soil and Plant

2015 ◽  
Vol 3 (2) ◽  
pp. 240-249
Author(s):  
Khalida Hassan ◽  
Rezan Mosa ◽  
Shayma Rajab
Keyword(s):  
Waste Water ◽  
Heavy Metals
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