scholarly journals Research on Copper Ions Removal from Wastewater Using Fe3O4 and Fe3O4- PVP Hybrid Nanomaterials

2021 ◽  
Vol 58 (1) ◽  
pp. 154-166
Author(s):  
Cristina Ileana Covaliu ◽  
Oana Stoian ◽  
Ecaterina Matei ◽  
Gigel Paraschiv ◽  
Eugenia Tanasa ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Contact Time ◽  
Industrial Wastewater ◽  
Environmental Problem ◽  
Copper Ions ◽  
Epigastric Pain ◽  
Precipitation Method ◽  
New Methods ◽  
Factors Influencing ◽  
Methods Of Treatment

Wastewater containing Cu (II) ions has become a huge environmental problem worldwide because ingestion of copper ions affects the human body leading to epigastric pain, nausea, vomiting, diarrhea and even death. The researches for new methods of treatment of wastewater polluted with heavy metals more efficient than the conventional ones led us to study Fe3O4 and his corresponding hybrid Fe3O4 -PVP as potential adsorbent nanomaterials for the removal of copper ions from industrial wastewater. First, the two nanomaterials were synthesized by precipitation method and characterized by XRD, FTIR and TEM analyses. Then, the two obtained nanomaterials were tested within the process of copper ions removal from wastewater and factors influencing the process including pH and contact time were investigated. The maximum wastewater treatment capacity reached up to 97 % under the optimal condition using Fe3O4 and 70% for Fe3O4 -PVP.

Practical Homemade Copper Filter by Banana Peels, Sand and Charcoal for Wastewater Treatment

2015 ◽  
Vol 804 ◽  
pp. 239-242
Author(s):  
Duongruitai Nicomrat ◽  
Jirasak Tharajak
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Environmental Problem ◽  
Copper Ions ◽  
Copper Ion ◽  
Filtration Efficiency ◽  
Agricultural Wastes ◽  
Toxic Heavy Metals ◽  
Extraction Period ◽  
Treatment Application

Copper ions are commonly contaminated in the effluents from many electronic factory. In copper filtration, most filter types are usually expensive and causes toxic residues and creates another health and environmental problem. Therefore, this research has been developed a copper filtration approach based on homemade non-hazardous residues of banana peels, unmeshed sand, and charcoal. The results showed that baked, minced banana peels media could absorb synthetic water having copper ion at 50 ppm with filtration efficiency of 70% within 2 hr. Baked minced banana peels in combination with sand and charcoal could adsorb Copper (II) at 50 mg/ mL more than 80%. However, the swollen structure of banana peels during copper (II) filtration caused limit filtration efficiency to 4-5 hour extraction period. The tentative wastewater treatment application is, therefore, the use of bio-adsorbent for effective adsorption of toxic heavy metals from effluents open discarded from agricultural wastes in the environment.

Sorption of Copper and Zinc from Aqueous Solutions by Microwave Incinerated Sugarcane Bagasse Ash (MISCBA)

2016 ◽  
Vol 835 ◽  
pp. 378-385 ◽  
Author(s):  
Ibrahim Umar Salihi ◽  
Shamsul Rahman Mohamed Kutty ◽  
Mohamed Hasnain Isa ◽  
Usman Aminu Umar ◽  
Emmanuel Olisa
Keyword(s):  
Heavy Metals ◽  
Aqueous Solution ◽  
Correlation Coefficient ◽  
Sugarcane Bagasse ◽  
Contact Time ◽  
Industrial Wastewater ◽  
Low Cost ◽  
Isotherm Model ◽  
Copper And Zinc ◽  
Sugarcane Bagasse Ash

Industrial wastewater containing toxic pollutants such as heavy metals tends to contaminate the environment once it is release without proper treatment. Heavy metals are toxic to both human and other living organisms. It is necessary to treat industrial wastewater polluted with heavy metals prior to its discharge into the receiving environment. In this study, low cost adsorbent was generated from sugarcane bagasse through incineration. The prepared adsorbent “microwave incinerated sugarcane bagasse ash” (MISCBA) was used in removing copper and zinc from aqueous solution. Parameters of importance such as pH, contact time and adsorbent dosages are studied to investigate their effects on the adsorption of copper and zinc. Maximum adsorption was observed at pH 6.0, contact time of 180 minutes and adsorbent dosage of 10 g/L. Zinc removal follows Langmuir isotherm model with correlation coefficient of 0.9291. Copper adsorption follows both Langmuir and Freundlich isotherm model with correlation coefficient of 0.9181 and 0.9742, respectively. Removal capacities of 38.4 mg/g and 20.4 mg/g were obtained for copper and zinc, respectively. Application of MISCBA as low - cost adsorbent have shown significant outcome in removal of copper and zinc from aqueous solution.

Removal of Certain Heavy Metals from Brewery Wastewater Using Date Palm Seeds Activated Carbon

2018 ◽  
Vol 34 (1) ◽  
pp. 233-238 ◽  
Author(s):  
Theresa Ukamaka Nwakonobi ◽  
Samuel Baba Onoja ◽  
Hope Ogbaje
Keyword(s):  
Heavy Metals ◽  
Activated Carbon ◽  
Contact Time ◽  
Industrial Wastewater ◽  
Date Palm ◽  
World Health ◽  
Brewery Wastewater ◽  
Sorption Data ◽  
Adequate Treatment ◽  
Maximum Limit

Abstract. In Nigeria, most of the brewery industries discharge their wastewater directly into the water body without adequate treatment. Wastewater from the brewery processes contains some heavy metals which in this study, attempts were made to reduce their concentration using activated carbon. Batch studies were carried out using date palm seeds activated carbon in the removal of lead (Pb), chromium (Cr), and cadmium (Cd) ion from industrial wastewater under conditions such as contact time and adsorbent dosage. Pb and Cr concentration in the wastewater were brought within World Health Organization (WHO) maximum limit of 0.01 and 0.05 mg/L for water, respectively, at 60 min of contact time across all the considered adsorbent doses of 10×103, 20×103, 30×103, and 40×103 mg/L while Cd concentration was brought within the WHO maximum limit of 0.003 mg/L at 80 min of contact time using 30×103 mg/L of the adsorbent. The sorption data fitted well into Langmuir isotherm which was very suitable for describing the sorption equilibrium with high regression values (>0.98). This study showed that date palm seeds activated carbon is suitable for the adsorption of Pb, Cr, and Cd, and as such could be used as a cost effective adsorbent in the treatment of brewery and other industrial wastewater. Keywords: Activated carbon, Adsorbent dose, Adsorption, Brewery wastewater, Contact time, Date palm seeds, Heavy metals.

scholarly journals Wastewater Treatment for Heavy Metals and Dyes Using Low-Cost Biosorbents: A Review

2021 ◽  
Vol 44 (2) ◽  
pp. 47-56
Author(s):  
Andreea BONDAREV
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Aqueous Solutions ◽  
Industrial Wastewater ◽  
Dye Removal ◽  
Environmental Problem ◽  
Low Cost ◽  
Sorption Kinetics ◽  
Inorganic Cations ◽  
Sustainable Wastewater Treatment

The pollution of industrial wastewater with heavy metals and dyes is a highly important environmental problem, because of the propagation of the pollution and because of its unfavourable consequences. Sustainable wastewater treatment is one of the foremost challenges of this century. Various waste materials characterized by lignocellulose composition are low cost, non-conventional adsorbent for biosorptive removal of heavy metal ions from aqueous solutions. Recent studies point to the potential of use of low-cost materials (zeolites, carrot residue and green tea waste) as effective sorbents for the removal of Cd2+ from aqueous solution. The use of bentonite to the treatment of wastewater containing reactive dyes in aqueous solutions requires the modification of the hydrophilic surface by inorganic cations with organic cations exchange. The use of bentonite as an inexpensive sorbent for the removal of Remazol Brilliant Blue R (RBBR) from synthetic aqueous solutions has been also presented in recent studies. The influence of some parameters such as: pH, initial dye concentration, sorbent dose on sorption kinetics for dye removal has been reviewed in this paper.

scholarly journals Kinetic studies of adsorption of Cu (II) from aqueous solution by coriander seeds (Coriandrum Sativum)

2018 ◽  
Vol 37 ◽  
pp. 02005
Author(s):  
L. Kadiri ◽  
A. Lebkiri ◽  
E.H. Rifi ◽  
A. Ouass ◽  
Y. Essaadaoui ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Aqueous Solution ◽  
Contact Time ◽  
Copper Ions ◽  
Copper Ion ◽  
Kinetic Studies ◽  
Spectroscopic Technique ◽  
Coriandrum Sativum ◽  
Ion Concentration ◽  
Potential Tool

The adsorption of copper ions Cu2+ by Coriandrum Sativum seeds (CSS) from aqueous solution was studied in order to highlight the importance of coriander seeds as a potential tool in the treatment of wastewaters containing heavy metals. The kinetic studies of adsorption of Cu (II) were discussed using the spectroscopic technique “Inducting Coupled Plasma” (ICP). The effects of initial copper ion concentration and contact time were determined. All results show that coriander seeds have, over their culinary and medicinal benefits, a significant adsorbent power of copper ions.

scholarly journals Bioadsorption of Heavy Metals From Industrial Wastewater Using Some Species of Bacteria

2016 ◽  
Vol 13 (3) ◽  
pp. 435-448
Author(s):  
Baghdad Science Journal
Keyword(s):  
Heavy Metals ◽  
Contact Time ◽  
Industrial Wastewater ◽  
Lead Concentration ◽  
Ph Value ◽  
Metal Adsorption ◽  
Copper Adsorption ◽  
E Coli ◽  
Sulfate Reducing ◽  
Different Temperatures

Three isolated bacteria were examined to remove heavy metals from the industrial wastewater of the Diala State Company of Electrical Industries, Diyala-Iraq. The isolated bacteria were identified as Pseudomonas aeruginosa, Escherichia coli and Sulfate Reducing Bacteria (SRB). The three isolates were used as an adsorption factor for different concentrations of Lead and Copper (100, 150, and 200 ppm.), in order to examine the adsorption efficiency of these isolates. In addition, the effect of three factors on heavy metals adsorption were examined; temperature (25, 30, and 37 ?C), pH (3 and 4.5) and contact time (2 and 24 hrs). The results showed that the highest level of lead adsorption was obtained at 37 ?C by E. coli, P, aerugenosa and SRB with percentage of 95, 95.3 and 99.7 % respectively, whereas, E. coli, P. Aerugenosa and SRB gave a copper adsorption percentage of (40.63, 50.51 and 80.57%) respectively at 37 ?C. Moreover, E.coli showed different percentage of metal adsorption ranged from 6.4% to 95 % with lead concentration of 100 and 200 ppm at pH4.5 and for each of 2 and 24 hrs contact time, whereas, it exerts percentage of copper adsorption ranged from 3.5 % to 40.63 % at 100 and 200 ppm and pH value of 4.5 for similar contact time. P. aerugenosa was also shown to be involved in metal adsorption with percentage ranged from 1.39 % for lead concentration of 150 ppm to 97.9 % for 200ppm under pH of 3 and contact times of 2 and 24 hrs. Interestingly, SRB exhibits significant differences in metal absorption values ranged from 14.97 % for lead (100 ppm) to 99.32 % at 200 ppm with a pH value of 3 and contact times of 2 and 24 hrs and under different temperatures.

scholarly journals Study Of The Stability Of Water-In-Oil Emulsion Intended for the Extraction of Heavy Metals Application: Copper Ions

2021 ◽  
Vol 4 (2) ◽  
pp. 62-69
Author(s):  
Saliha Bouranene
Keyword(s):  
Heavy Metals ◽  
Phosphoric Acid ◽  
Contact Time ◽  
Copper Ions ◽  
Volume Ratio ◽  
Extractant Concentration ◽  
Sorbitan Monooleate ◽  
Operational Conditions ◽  
Internal Phase ◽  
The Stability

This work aims to optimize the parameters that affect the stability of a W/O emulsion to exploit it in the extraction of heavy metals contained in the liquid effluents. The study of the emulsion stability shows that; an emulsification time of 10 minutes, a surfactant concentration of Span80 equal to 3% (w/w), an extractant concentration of Triethylamine N(CH2CH3)3 equal to 5% (w/w), an internal phase concentration of phosphoric acid (H3PO4) of 0.75M, a volume ratio of membrane phase to internal phase of 1, a volume ratio of external phase to the emulsion of 20 and a stirring speed of 180 rpm; lead to the formation of a very stable emulsion with a very low rupture rate of around 1.92% after one hour of contact time. The results of extraction of copper ions revealed that under the best operational conditions, the extraction yield was closed to 93.33% for 20% extractant content, a contact time of 12 minutes, and an initial concentration of copper ions of 400 ppm. The application of this new membrane matrix based on phosphoric acid used as inner phase, sorbitan monooleate as a surfactant, and Triethylamine as extractant has been proven effective for extracting copper ions in water.

scholarly journals INDUSTRIAL REJECTION: REMOVAL OF HEAVY METALS BASED ON CHEMICAL PRECIPITATION AND RESEARCH FOR RECOVERABLE MATERIAL IN BYPRODUCTS

2020 ◽  
Vol 7 (2) ◽  
pp. 39-52
Author(s):  
Jemjami Saloua ◽  
Taoufik Mohamed ◽  
Moufti Ahmed ◽  
Moustaid Khadija
Keyword(s):  
Heavy Metals ◽  
Industrial Wastewater ◽  
Rapid Development ◽  
Thermal Analyses ◽  
Calcium Sulphate ◽  
Chemical Precipitation ◽  
Precipitation Method ◽  
Optimum Ph ◽  
Removal Of Heavy Metals

With the acceleration of urbanization and the rapid development of industry and agriculture, a large number of industrial wastewater containing heavy metal is produced. In this study we worked on industrial rejection. The method for removing heavy metals from industrial wastewater based on chemical precipitation method is proposed in this paper, which utilizes lime (CaO), limestone (CaCO3), and sodium hydroxide (NaOH). Research on gypsum (CaSO4, 2H2O) in byproducts resulted from precipitation is carried out based on thermal analyses, infrared spectra and XRD examinations. The characterization of the effluent showed that’s very hard, rich in sulphate, chlorides, orthophosphate and in heavy metals. The results show that the examined chemical coagulants were all efficient in the removal of the studied metals (Cu, Cd, Fe, Co and Zn). The overall results indicate that the optimum pH for hydroxide precipitation of the studied metals is varied between pH 6.0 and 10.0. Since all effluent guidelines require an effluent pH between 7 and 8, the use of carbonate treatment is, therefore, recommended because its buffering capacity value is around pH 7. The analyzes carried out on the byproducts of treatment (FTIR, XRD, TGA/TDA) show that they are mostly composed of gypsum: calcium sulphate dihydrate (CaSO4·2H2O).

scholarly journals Removal of Cd(II) from industrial wastewater using locally available Bentonite Clay

2019 ◽  
Vol 117 ◽  
pp. 00008
Author(s):  
Alanoud Al Sheikh ◽  
Sultan Alsagabi ◽  
Mohammed Almeataq ◽  
Turki Alajyan ◽  
Souraya Goumri-Said
Keyword(s):  
Heavy Metals ◽  
Saudi Arabia ◽  
Contact Time ◽  
Industrial Wastewater ◽  
Bentonite Clay ◽  
Adsorptive Capacity ◽  
Natural Material ◽  
Toxic Heavy Metals ◽  
The World ◽  
Living Organisms

Water resources are increasingly polluted by toxic heavy metals such as Cadmium (Cd). Cd is particularly dangerous because it accumulates in living organisms leading to diseases affecting the kidneys, bones and lungs. As a result, researchers have been developing effective techniques to remove harmful heavy metals. Currently, purification techniques in Saudi Arabia and other parts of the world are inefficient and costly; thus, the development of a cheap, readily available, and natural material for the removal of Cd is of great interest. This work highlights the adsorptive potential of local Saudi bentonite clay extracted from Khulais region in western Saudi Arabia in the removal of toxic Cd(II) from aqueous solutions. We successfully synthesized bentonite clay beads that can be inserted in columns for filtering purposes. The effects of contact time, bentonite mass, PH, temperature, bentonite treatment (washing and calcinations), and the adsorptive potential of bentonite were evaluated. The results show excellent adsorptive capacity of bentonite.

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