Engineering Proceedings | Free Full-Text | Removal of Cadmium …
The aim of this work was to evaluate the possibility of applying the dried biomass of E. gracilis var. bacillaris as a biosorbent for the removal of Cd. Experiments were carried out under conditions of batch systems involving aqueous solutions labelled with 109CdCl2. From the kinetics of Cd biosorption, it can be assumed that the Cd removal was a rapid …
r e m e d iat on dB i o B Journal of Deshmukh et al, …
Cadmium removal by using banana peels has been studied previously in multicomponent system [10] and they achieved adsorption capacity of 5.71 mg/g for cadmium removal onto dried banana peels. The present investigation is undertaken to study the removal of cadmium as a single metal from aqueous solutions by using Dried banana peel as an …
IOP Conference Series: Earth and Environmental Science …
Contact filtration occurred unequivocally in all sorption materials during the removal of the cadmium. 1. Introduction Cadmium is a chemical element belonging to the group of heavy metals. It is a white metal similar in its properties to zinc. The average concentration of cadmium in the Earth's crust is about 0.15 – 0.2 mg/kg.
Removal of Cadmium from Phosphoric Acid by Liquid …
Access 47 million research papers for free; Keep up-to-date with the latest research; ... (DDS & DDC) that have significantly increased the cadmium removal and the P2O5 recovery from wet phosphoric acid, saved the heat energy cost and reduced the process design. The new co-crystallization modes have upgraded the cadmium removal …
A novel approach for removing cadmium from synthetic wet …
Section snippets Reagents. Cadmium sulfate (C d S O 4 ≥ 99.99 %), sodium sulfide (N a 2 S ≥ 60 %), and phosphoric acid (≥ 85 wt%) used in this investigation were purchased from Merck (Germany).Sodium hydrosulfide (N a H S) (purity 70 %) was provided by the OCP 1 Group (Morocco).All reagents were used without further purification. …
Statistical optimization for cadmium removal using
The most significant factors affecting cadmium removal process were further optimized by the face centered central composite design. ... Open Access This article is licensed under a Creative ...
(PDF) EGG SHELL AS NATURAL SORBENT TO REMOVE CADMIUM …
The results appeared that cadmium is considerably adsorbed on egg shells and it could be and economic method for the removal of cadmium from aqueous solutions. summary of the experimental work ...
Removal of Cadmium Metal using a Novel Material Corncob …
Removal of heavy metal cadmium from wastewater using corncob a novel material is investigated. The effluent contains heavy metals coming from various industries are discharging directly into the water bodies without treatment. It is very essential to reduce and control heavy metals such as cadmium, zinc, copper and lead. In the present work …
Cadmium (II) removal from aqueous solution using …
Cadmium (II) (Cd (II)) is among the most toxic heavy metal ions in water bodies, hazardous to humans and with negative environmental effects from its toxicity and non-biodegradable nature [ ]. Cd (II) removal from wastewater has received a lot of attention, and despite improvements it remains difficult.
Development of peptoid-based ligands for the removal of cadmium …
Cadmium poisoning poses a serious health concern due to cadmium's increasing industrial use, yet there is currently no recommended treatment. The selective coordination of cadmium in a biological environment—i.e. in the presence of serum ions, small molecules, and proteins—is a difficult task. To address this challenge, a …
Water | Free Full-Text | Efficient Removal of Cadmium (II) …
It is a great challenge for a material with high adsorption capacity for cadmium (Cd) and arsenic (As) simultaneously. To address the simultaneous removal of Cd and As from water and the utilization of waste muscovite, the muscovite-supported iron manganese oxides (FMM) were prepared. The FMM was easy to adsorb Cd(II) and As(V), and the …
Cadmium sources, toxicity, resistance and removal …
Khan et al. [80] reported that a cadmium-resistant Pichia hampshirensis 4Aer could remove 24, 26, 26.7, and 28 mM/g Cd +2 from real industrial wastewater …
A comparative study for removal of cadmium(II) ions using …
As a library, NLM provides access to scientific literature. Inclusion in an NLM database does not imply endorsement of, or agreement with, the contents by NLM or the National Institutes of Health. ... In the present work, the maximum percentage of cadmium removal i.e. 54.10% and 90.37% for DCP and NTA-MDCP, respectively was found at …
Biochar from Agricultural by-Products for the Removal of …
This study reports the adsorption capacity of lead Pb2+ and cadmium Cd2+ of biochar obtained from: peanut shell (BCM), "chonta" pulp (BCH) and corn cob (BZM) calcined at 500, 600 and 700 °C, respectively. The optimal adsorbent dose, pH, maximum adsorption capacity and adsorption kinetics were evaluated. The biochar with the highest …
Enhanced removal of cadmium from water using bio
Flue gas cadmium may endanger human health and ecological environment due to its persistent, toxic and bioaccumulating. A sulfate reducing membrane biofilm reactor (MBfR) for removal of cadmium-containing flue gas was investigated. Cadmium removal efficiency was up to 95.1%. Desulfovibrio was the dominant genus.
Use of the microalga Scenedesmus obliquus to remove cadmium …
The ability of a wild strain of Scenedesmus obliquus, isolated from a heavy metal-contaminated environment, to remove Cd2+ from aqueous solutions was studied at several initial concentrations. Viable biomass removed metal to a maximum extent of 11.4 mgCd/g at 1 mgCd/l, with most Cd2+ being adsorbed onto the cell surface. A …
Removal of Cadmium from Water by Water Hyacinth
In a few cases, ion exchangers have also been used to remove metallic ions. For this paper, batch studies were conducted and the uptake of cadmium from water by water hyacinth was investigated for six different concentrations ranging from 0.06–10 mg/L. The daily cadmium uptake for all the concentrations was recorded and the results analyzed.
Functionalization and Evaluation of Inorganic Adsorbents for …
Removal of Cadmium in Wastewater. Molecules 2021, 26, 4150. https:// ... This article is an open access article. distributed under the terms and. conditions of the Creative Commons.
Cadmium removal mechanisms from aqueous solution by …
The pistachio, peanut, and almond shell were investigated for the removal of Cd ions from the aqueous solution. The equilibrium of shells was described well with Langmuir model having q max up to 51.28 mgg −1 of pistachio, 62.11 mgg −1 of peanut, 78.74 mgg −1 of almond at neutral pH. The pseudo-second-order equation defined well …
Water filters tested for heavy metals removal: …
Cadmium removal ranged from 6.6% (Brita) to a high of 99.2% (Zero Water). The average removal was 33.1%. Mercury removal Mercury is an extremely toxic heavy metal that can cause brain damage, …
Statistical optimization for cadmium removal using
Article. Open access. Published: 20 August 2018. Statistical optimization for cadmium removal using Ulva fasciata biomass: Characterization, immobilization and …
Removal of Cadmium using Low Cost Adsorbents
The cadmium ions removal reached a maximum value at pH 5.5, mixing time 120 minute and 212 µm size of adsorbent particles. Dynamics of adsorption process is best described by Freundlich isotherms ...
Washing enhanced electrokinetic remediation for removal cadmium …
The cadmium removal efficiency of EM in soil was compared with that of tap water, citric acid, and ethylenediaminetetraacetic acid (EDTA). The results revealed that after 7 days of EK treatment, EM had a higher cadmium removal efficiency than did citric acid (72.3%), EDTA (75.4%), and tap water (21.7%). ... For all open access content, the ...
Removal of Cd(II) ions from aqueous solutions by …
In this research, adsorption removal of cadmium ions from aqueous solutions by nanodiopside as a novel, green, and efficient adsorbent was studied. The prepared nanodiopside was characterised by FESEM, FTIR, XRD, EDX, TEM and BET analyses. All of the analyses indicated that the nanodiopside was synthesised correctly.
Removal of cadmium heavy metal ions from wastewater by …
The electrosorption process on the MACF involving the removal of cadmium took place more effectively at higher voltages. As the voltage increased from 0.6 to 1.3 V, a significant rise in the percentage removal of cadmium was observed, reaching the maximum value and equilibrium was attained after almost 2 h of electrosorption.
Removal of heavy metals and pollutants by membrane …
The removal efficiencies for lead ions and cadmium ions were 89.9 and 79.7%, respectively. He et al. ( 2008 ) prepared an activated nylon-based membrane modified by chitosan and examined its adsorption behavior for Cu 2+ ions, the result revealed that its adsorption capacity for Cu 2+ ions could arrive at 10.794 mg/g; …
Removal of cadmium ions by magnesium phosphate
So, it could be deduced that the removal of cadmium was involved by the ion exchange process. It is known that Mg ions have the same oxidation state as cadmium ions, effectively the Mg(II) in the prepared structure could be changed by Cd(II) to obtain the Cd 5 H 2 (PO 4) 4 ·4H 2 O after adsorption. This mechanism was confirmed by the XRD …
Cadmium removal mechanisms from aqueous …
Removal mechanism of cadmium Adsorption capacity is effected by the adsorbent characteristic such as porous structure, surface area, functional groups, …
Removal of cadmium heavy metal ions from …
This work is aimed at optimizing the process of removal of cadmium and the parameters such as voltage, time, initial concentration and pH for high cadmium …
ASSESSING THE POTENTIAL OF PORTABLE X-RAY …
INTRODUCTIONRegulatory BackgroundFollowing the establishment of cadmium as a material known to be carcinogenic, the Occupational Safety and Health …
