Metals Removal and Recovery by Arthrobacter sp. Biomass

Experiments on the real possibility of employing microorganisms to capture inorganic polluting substances, mainly heavy metals from urban and industrial wastes, are running using bacteria biomass. Many strains of Arthrobacter spp., gram-negative bacteria, diffused in the soil also inacondition of environmental stresses, have been proved to be particulary effective in heavy metal capture (Cd, Cr, Pb, Cu, Zn). The active and passive processes in accumulation of metals by bacteria were studied. Our experiments have been done on fluid biomass and on a membrane both for practical use and for an easy recovery.

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Fungi-Mediated Detoxification of Heavy Metals

Recent Advancements in Bioremediation of Metal Contaminants - Advances in Environmental Engineering and Green Technologies ◽

10.4018/978-1-7998-4888-2.ch011 ◽

2021 ◽

pp. 205-219

Author(s):

Suchhanda Ghosh

Keyword(s):

Public Health ◽

Heavy Metals ◽

Heavy Metal ◽

Fungal Biomass ◽

Heavy Metal Ions ◽

Industrial Wastes ◽

Wall Material ◽

Cell Wall Material ◽

Food Industries ◽

Removal And Recovery

Heavy metal pollution is one of the major environmental problems today. Therefore, the elimination of heavy metal ions from wastewater is important to protect public health. The use of biological material in the removal and recovery of toxic metals from industrial wastes has gained important credibility during recent years. Several microorganisms including bacteria, algae, yeast, and fungi have been reported to effectively accumulate or adsorb heavy metals through biosorption. Fungal biomaterial has been proved to be efficient as a biosorbent. High percentage of the cell wall material and availability of fungal biomass as a by-product of various antibiotic and food industries makes it an obvious choice. Thus, the chapter deals with detoxification of heavy metals from contaminated sources using biomaterials with special reference to fungi.

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Distribution of heavy metals in seawater, sediment and biota of Jinhae Bay, Korea

Water Science & Technology ◽

10.2166/wst.1994.0525 ◽

1994 ◽

Vol 30 (10) ◽

pp. 173-177 ◽

Cited By ~ 2

Author(s):

Lee Chan-Won ◽

Kwon Young-Tack

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Coastal Waters ◽

Heavy Metal Contamination ◽

Heavy Metal Concentration ◽

Industrial Wastes ◽

Subsequent Increase ◽

Zinc Cadmium ◽

Jinhae Bay ◽

Copper Lead

Over the past two decades, the coastal waters of Jinhae Bay have been extensively used by coastal communities and industries for the disposal of domestic and various industrial wastes, therefore increasing the level of pollutants in coastal waters with a subsequent increase in sediments, especially of heavy metals. Specific objectives of this research are to investigate the distribution of heavy metal concentration in biota, to compare the concentrations with those in sediment and water and to relate the bioconcentration to the different heavy metals in biota obtained from several sites. Sixty one percent of heavy metals was found in particulate form during the high runoff season and 32% during the dry season. The behavior of the particulate metals after flowing in to the enclosed coastal sea is an important factor in heavy metal contamination. Copper, lead and chromium contamination of sediment was revealed at several sites. The bioconcentration factors (BCFs) of zinc, cadmium, copper, nickel, chromium and lead by the mussel (Mytilus edulis) were determined as 2,900, 2,814, 807, 423, 228 and 127 in the decreasing order, respectively. The areas located nearest to highly populated city and industries exhibited mussels with the largest accumulation of copper, lead and chromium.

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Heavy Metals Concentration in Contaminated Soils from Southern Part of Romania

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Agriculture ◽

10.15835/buasvmcn-agr:6544 ◽

2011 ◽

Vol 68 (2) ◽

Author(s):

Diana FLORESCU ◽

Andreea IORDACHE ◽

Claudia SANDRU ◽

Elena HORJ ◽

Roxana IONETE ◽

...

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Contaminated Soils ◽

Metal Contamination ◽

Industrial Waste ◽

Heavy Metal Contamination ◽

Land Application ◽

Industrial Wastes ◽

Treatment Processes ◽

Contamination Of Soils

As a result of accidental spills or leaks, industrial wastes may enter in soil and in streams. Some of the contaminants may not be completely removed by treatment processes; therefore, they could become a problem for these sources. The use of synthetic products (e.g. pesticides, paints, batteries, industrial waste, and land application of industrial or domestic sludge) can result in heavy metal contamination of soils.

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Heavy Metals Removal from Water by Efficient Adsorbents

Water ◽

10.3390/w13192659 ◽

2021 ◽

Vol 13 (19) ◽

pp. 2659

Author(s):

Muhammad Zaim Anaqi Zaimee ◽

Mohd Sani Sarjadi ◽

Md Lutfor Rahman

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Water Treatment ◽

Adsorption Process ◽

Natural Occurrence ◽

Toxic Heavy Metals ◽

Major Purpose ◽

Treatment Methods ◽

Metals Removal ◽

Harmful Effects

Natural occurrence and anthropogenic practices contribute to the release of pollutants, specifically heavy metals, in water over the years. Therefore, this leads to a demand of proper water treatment to minimize the harmful effects of the toxic heavy metals in water, so that a supply of clean water can be distributed into the environment or household. This review highlights several water treatment methods that can be used in removing heavy metal from water. Among various treatment methods, the adsorption process is considered as one of the highly effective treatments of heavy metals and the functionalization of adsorbents can fully enhance the adsorption process. Therefore, four classes of adsorbent sources are highlighted: polymeric, natural mineral, industrial by-product, and carbon nanomaterial adsorbent. The major purpose of this review is to gather up-to-date information on research and development on various adsorbents in the treatment of heavy metal from water by emphasizing the adsorption capability, effect of pH, isotherm and kinetic model, removal efficiency and the contact of time of every adsorbent.

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Antibiotic and heavy metal resistance in Gram-negative bacteria isolated from the Seyhan Dam Lake and Seyhan River in Turkey

Annals of Microbiology ◽

10.1007/s13213-013-0740-8 ◽

2013 ◽

Vol 64 (3) ◽

pp. 1033-1040 ◽

Cited By ~ 10

Author(s):

Fatih Matyar ◽

Osman Gülnaz ◽

Gulcihan Guzeldag ◽

H. Aysun Mercimek ◽

Sayim Akturk ◽

...

Keyword(s):

Heavy Metal ◽

Heavy Metal Resistance ◽

Metal Resistance ◽

Gram Negative Bacteria ◽

Gram Negative ◽

Seyhan Dam

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Cu adsorption in fixed bed column with three different influent concentration

E3S Web of Conferences ◽

10.1051/e3sconf/201912003003 ◽

2019 ◽

Vol 120 ◽

pp. 03003

Author(s):

Huang-Mu Lo ◽

Kae-Long Lin ◽

Min-Hsin Liu ◽

Hsung-Ying Chiu ◽

Fang-Cheng Lo

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Activated Carbon ◽

Fixed Bed ◽

Thomas Model ◽

Fixed Bed Column ◽

Nelson Model ◽

Influent Concentration ◽

Carbon Adsorption ◽

Metals Removal

Heavy metals from the electroplating wastewater might cause environmental pollution if not well treated. Generally, carbon adsorption might be used for the final step for further trace metals removal. This study investigated the heavy metal Cu adsorption in the fixed bed column with 1, 10 and 100 mg/L influent concentration. Results showed that KAB decreased as influent Cu concentration increased from 1 to 100 mg/L while N0 increased as influent concentration increased from 1 to 100 mg/L as can be found in Adams-Bohart model. R2 was found between 0.8579 and 0.9182. In Thomas model. KTH and q0 showed the similar trend as KAB and N0 in the Adams-Bohart model. KTH decreased as influent Cu concentration increased from 1 to 100 mg/L. q0 increased as influent Cu concentration increased from 1 to 100 mg/L. R2 of regression model was found between 0.9065 and 0.9836. In Yoon-Nelson model. KYN increased as influent Cu concentration increased from 1 to 100 mg/L while τ decreased as influent Cu concentration increased from 1 to 100 mg/L. Results showed that the three models of Adams-Bohart model, Thmoas model and The Yoon-Nelson model were suitable for the description of Cu adsorption by activated carbon.

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Removal of Nutrients and Selected Heavy Metals in Wet Market Wastewater by Using Microalgae Scenedesmus Sp.

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.773-774.1210 ◽

2015 ◽

Vol 773-774 ◽

pp. 1210-1214 ◽

Cited By ~ 17

Author(s):

Noor Maisara bte Jais ◽

Radin Maya Saphira bte Radin Mohamed ◽

Wan Asma Wan Mohamad Apandi ◽

Hazel Monica Matias Peralta

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Sampling Technique ◽

Experimental Result ◽

Grab Sampling ◽

Heavy Metals Removal ◽

Public Market ◽

Metals Removal ◽

Wet Market ◽

Raw Wastewater

The wet market wastewater may lead to pollution, odour and aesthetic problems to the environment and society if not treating properly. Thus, this research was conducted to culture microalgae Scenedesmus sp. and to identify the optimal concentration of microalgae Scenedesmus sp.due to the nutrient and heavy metal removals from wet market wastewater based on laboratory scale. The samples were taken from Public Market Parit Raja, Batu Pahat at 9a.m. in the morning using grab sampling technique. The characteristics of raw wastewater and microalgae Scenedesmus sp. were determined. There are five sample wastewater (used 625ml for each five sample wastewater) with five different sample concentrations of microalgae which are 6.50x105, 49.88x104, 34.75x104, 19.63x104 and 49.88x104 cell/ml with 16 days as duration for period study. The microalgae were cultured by BBM for eight days and another eight days for treatment with replicates three times for each sample. The analysis were measured due to the nutrient and heavy metal removals which are TN, TP, TOC, Fe and Zn during eight days treatment process. Based on experimental result, the optimum efficiency removals for each concentration were achieved 45.6-86.4% of nutrients and heavy metals removal. The highest amount of nutrient and heavy metal removals after wastewater treatment by microalgae are TN 74.77%, TP 82.17%, TOC 86.36%, Fe 65.76% and Zn 84.14%. As conclusion for this experiment, Sample 2 (concentration 49.88x104 cell/ml of microalgae Scenedesmus sp.) is the optimum concentration due to the highest percentage of nutrients and heavy metals removal which achieved 65.3-82.1% which TN 65.32%, TP 76.77%, TOC 80.34%, Fe 65.76% and Zn 82.12%.

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Heavy metal removal from waste waters by phosphonate metal organic frameworks

Pure and Applied Chemistry ◽

10.1515/pac-2017-0307 ◽

2018 ◽

Vol 90 (1) ◽

pp. 35-47 ◽

Cited By ~ 5

Author(s):

Bianca Maranescu ◽

Lavinia Lupa ◽

Aurelia Visa

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Aqueous Solutions ◽

Metal Ions ◽

Phosphonic Acid ◽

Metal Organic Frameworks ◽

Waste Waters ◽

Heavy Metals Removal ◽

Metals Removal ◽

Metal Organic

AbstractThe increase attention in the area of phosphonate metal organic framework is exemplified with a variety of applications and a rich chemistry of these compounds. Water pollution caused by heavy metal ions is a major concern due to their toxicity to many life forms. In order to decrease the heavy metals impact upon the environment various technologies of water treatment such as: chemical sedimentation, ion exchange, redox process are studied. The tendency is to find a versatile and economical method of heavy metals removal from waste waters. Phosphonate metal organic frameworks were obtained by the reaction of Ni(CH3COO)2·4H2O, phosphonic acid (phosphonoacetic (CP), vinyl phosphonic acid (VP) and N,N-bis(phosphonomethyl)glycine (Gly)) in hydrothermal conditions. Coordination polymers synthesized were characterized by FTIR, XRD, scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA). The adsorption processes represent a very good alternative for heavy metals removal due to low costs and ease of operation. In the present paper the adsorption performance of the mentioned materials in the removal process of heavy metals from aqueous solutions, was studied using the batch method. The adsorption conditions were investigated by varying the initial pH, contact time and adsorbate initial concentration for chromium metal ions removal from aqueous solutions. It was found that the adsorption efficiency of the studied materials in the removal process of Cr(VI) ions from aqueous solutions is in the following order: Ni-CP<Ni-Gly≤Ni-VP.

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Removal of Some Heavy Metals by Electrocoagulation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.468-471.2882 ◽

2012 ◽

Vol 468-471 ◽

pp. 2882-2890 ◽

Cited By ~ 3

Author(s):

R. H. Al Anbari ◽

S. M. Alfatlawi ◽

J. H. Albaidhani

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Removal Efficiency ◽

Metal Removal ◽

Heavy Metal Removal ◽

Efficient Treatment ◽

Electrolytic Cells ◽

Removal Capacity ◽

Metals Removal ◽

Working Parameters

Heavy metal removal by electrocoagulation using iron electrodes material was investigated in this paper. Several working parameters, such as pH, current density and heavy metal ions concentration were studied in an attempt to achieve a higher removal capacity. A simple and efficient treatment process for removal of heavy metals is essentially necessary. The performance of continuous flow electrocoagulation system, with reactor consists of a ladder series of twelve electrolytic cells, each cell containing stainless steel cathode and iron anode. The treatment of synthetic solutions containing Zn 2+,Cu 2+,Ni 2+,Cr 3+,Cd 2+ and Co 2+ ,has been investigated. Results showed that iron is very effective as sacrificial electrode material for heavy metals removal efficiency and cost points. Also it was concluded that the chromium has lower efficient removal as compared to zinc, copper and nickel. At the same time cadmium and cobalt have minimum removal efficiency.

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