Elimination of Hazard Cadmium Ions from Simulated Groundwater Using Hydroxyapatite Coated Filter Cake Made of Sewage Sludge and Cement Kiln Dust

Faisal, Ayad A.H.; Ahmed, Dooraid N.; Saleh, B.; Afzal, Asif; Sharma, Gaurav

doi:10.1007/s10924-021-02286-0

Cited by 7 publications

(4 citation statements)

References 48 publications

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“…CKD was also successfully utilized as a treatment agent in many fields, such as removing copper and zinc contamination from acidic groundwater [60], adding an improvement in aluminum metal matrix composites [61], benefiting municipal wastewater as an effective treatment agent [62], supporting pozzolanic material production as a sustainable solution [63], improving benzene-contaminated groundwater as a capable treatment material [64], inducing benefits to magnesium phosphate cement [65], and contributing to eliminate the hazard of groundwater contaminated by cadmium ions [66]. The utilization of CKD waste material as a treatment agent could provide a wide range of advantages in this field.…”

Section: Replacement For Cementmentioning

confidence: 99%

Cement Kiln Dust (CKD): Potential Beneficial Applications and Eco-Sustainable Solutions

2022

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Over many decades, cement has been the primary component in construction projects and is considered one of the essential industries worldwide. At the same time, it overconsumes natural resources and can negatively impact the environment through a few byproducts, such as carbon dioxide (CO2) and cement kiln dust (CKD). The generated quantity of CKD is estimated to be 15–20% of the produced cement, which means CKD can be induced in hundreds of millions of metric tons synchronously with annual global cement production. Unfortunately, not all materials of CKD are suitable for recycling in cement manufacturing since it contains high levels of alkalis, sulfate, and chloride, leading to excessive concentrations in the final product. Therefore, CKD industrial utilization has become highly recommended in recent research as a potential beneficial application from economic, environmental, and sustainability perspectives. This review paper highlights and discusses the recently conducted research articles that investigate the industrial applications of CKD. The obtained outcomes showed that CKD has physical and chemical properties that make it practical in many fields, such as soil stabilization, concrete mix, chemical treatment, ceramic and brick manufacturing, and mine backfill. They also indicate a lack of studies investigating CKD in mine backfill applications as a partial replacement material for cement due to the high cost of binders, optimization, and sustainability purposes.

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Section: Replacement For Cementmentioning

confidence: 99%

Cement Kiln Dust (CKD): Potential Beneficial Applications and Eco-Sustainable Solutions

2022

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“…However, this method has many limitations, including the high cost of pumping and well drilling, as well as the low permeability of some subsurface sections, which limits the effectiveness of the pump and treat method. Finally, this method may cause changes in the hydraulic gradient of the groundwater in the treatment area 13 – 16 . Other methods are used to treat the groundwater, such as in-situ flushing and in-situ air sparging.…”

Section: Introductionmentioning

confidence: 99%

“…Zero-valent iron (ZVI) and nanoscale ZVI are examples of many materials that are employed as reactive media in PRBs 22 – 24 ; in addition, zeolite 25 , granular activated carbon (GAC) 26 , 27 , ion exchangers 28 are also regular reactive materials. Despite the use of those reactive materials, investigators are currently looking for cost-effective, environmentally friendly reactive media that use by-product materials in their composition 13 . In this paper, a novel calcium ferric oxide silica sand (CFO-SS) has been synthesised through an optimisation process.…”

Section: Introductionmentioning

confidence: 99%

Eco-friendly remediation of tetracycline antibiotic from polluted water using waste-derived surface re-engineered silica sand

Al-Hashimi

Hashim

Loffill

et al. 2023

Sci Rep

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A new green reactive adsorbent (calcium ferric oxide silica sand (CFO-SS)) made from wastepaper sludge ash and ferric ions was synthesised and shown to remove tetracycline antibiotics (TC) from contaminated water effectively. The synthesised sand was dried at 95 °C, and a series of batch and fixed bed experiments were performed to determine the optimum operating conditions. Results showed that the adsorption capacity of the CFO-SS increases with the concentration gradient between the solid and liquid phases. 0.3 g of the new adsorbent was proven sufficient to remove more than 90% of the TC at a pollutant dose of 50 mg/L in 50 mL of simulated groundwater with an agitation speed of 200 rpm for 3 h. The adsorption isotherm followed the Langmuir isotherm model, with a loading capacity of 21.96 mg/g at pH 7, while the Pseudo second-order model best described the absorption kinetics. The adsorption mechanisms proposed included electrostatic interaction, intraparticle diffusion, hydrogen bonding, and cation-π interactions. Characterisation investigations revealed that the newly precipitated oxides on silica sand play an essential role in TC adsorption support. In fixed-bed experiments, it was discovered that reducing the flow rate and inflow concentration of TC and increasing the sorbent mass significantly extended the lifetime of the produced sorbent in the packed column. The measured breakthrough curves were best fit with the Adams-Bohart and the Clark models, as they provided the highest square root number (R2) values. Finally, considering the efficacy of CFO-SS in TC adsorption performance, it can be noted that the novel synthesised reactive material is an efficient and environmentally friendly material for TC removal, and it presents a potential solution to resolving the challenge of TC-rich groundwater.

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“…Water contamination with heavy metals is the increasingly spreading problems in the fields of water conservation and safety. It is linked to a variety of human activities, including mining, metal processing, petroleum, and power generation, as well as metal-based pigments, wastes of electroplating, and other kinds of industrial wastes on a smaller scale (Hashim et al 2011;Faisal et al 2018Faisal et al , 2020aFaisal et al , 2021Al-Hashimi et al 2021;Sharma and Naushad 2020). Cadmium and lead ions have long been a source of concern in the ecosystem due to their toxicity to living things.…”

Section: Introductionmentioning

confidence: 99%

Neural network for modeling the capture of lead and cadmium ions from wastewater using date palm stones

Faisal

Nassir

Rashid

et al. 2022

Int. J. Environ. Sci. Technol.

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The current theoretical and experimental study was to thoroughly examine the capability of date stones for scavenging cadmium and lead ions from simulated wastewater. Three layers-artificial neural network (ANN) with 115 batch tests proved that the best conditions achieved the highest sorption efficiency (>63% for Cd(II) and > 91% for Pb(II)) where time 1 h, pH 5–6, dosage 5 g/100 mL, speed 100 rpm and temperature 25 °C. A satisfactory matching between the measurements and the ANN outputs was recognized with coefficient of determination greater than 99%. The ANN has also revealed throughout the sensitivity analysis that the initial pH and contact time with importance of 25 and 39% for cadmium and lead ions respectively were considered to be the most influential parameters in the removal process. Among Langmuir, Freundlich, and ANN models, the latter one was well fitted the sorption data. This model was substituted in solute transport equation to describe the spatial and temporal distribution of metal ions through the packed column. From the breakthrough curves, the well agreement between the theoretical and measurements (Willmott’s index almost greater less than 0.97), the date stones sorbent have had greater tendency to sorb lead ions than that of cadmium ones.

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Elimination of Hazard Cadmium Ions from Simulated Groundwater Using Hydroxyapatite Coated Filter Cake Made of Sewage Sludge and Cement Kiln Dust

Cited by 7 publications

References 48 publications

Cement Kiln Dust (CKD): Potential Beneficial Applications and Eco-Sustainable Solutions

Cement Kiln Dust (CKD): Potential Beneficial Applications and Eco-Sustainable Solutions

Eco-friendly remediation of tetracycline antibiotic from polluted water using waste-derived surface re-engineered silica sand

Neural network for modeling the capture of lead and cadmium ions from wastewater using date palm stones

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