Humic acid coated sand as a novel sorbent in permeable reactive barrier for environmental remediation of groundwater polluted with copper and cadmium ions

Faisal, Ayad A.H.; Abdul-Kareem, Mohammed B.; Mohammed, Abbas; Naushad, Mu.; Ghfar, Ayman A.; Ahamad, Tansir

doi:10.1016/j.jwpe.2020.101373

Cited by 34 publications

(9 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although, the use of other conventional techniques such as photodegradation, oxidation with chemicals, filtration, coagulation, and sedimentation seem to be equally useful [8,11], some of them can generate harmful by-products or need to use of the environmentally burdening reagents [12]. [2,9] cadmium ions activated carbon/Leucaena leucocephala biomass 70.42 mg/g 2 humic acid coated sand 18.9 mg/g 2 [3,13] eosin yellow dye activated carbon/tea waste 400 mg/g 2 chitosan/PVA composite 52.91 mg/g 1 [4,14] methylene blue dye activated biochar/rice straw 90.91 mg/g 2 lignin/chitosan composite 36.25 mg/g 2 [5,15] congo red dye activated carbon/coffee waste 90.90 mg/g 1 sand/MgFe-layered double hydroxides composite 9127.08 mg/g 2 [6,10] MCPA activated carbon/wood composites 1.87 mmol/g 2 coffee waste 0.34 g/g (1.69 mmol/g 2 ) [7,16] methylene blue dye activated carbon SnO 2 /corn cob removal efficiency: 90.86% Gum arabic-crosslinkedpoly(acrylamide)/Ni(OH) 2 /FeOOH removal efficiency: 75% [8,11] The structure and properties of the activated carbon depend on the nature of precursor whose biochemical composition determines dynamics of the pyrolysis process, its yield, abrasion, and amount of ash [17,18]. Raw materials with a sufficiently high carbon content and low percentage of inorganics are preferable for the activated carbon production.…”

Section: Introductionmentioning

confidence: 99%

Activated Carbon from Agricultural Wastes for Adsorption of Organic Pollutants

et al. 2020

View full text Add to dashboard Cite

Agricultural waste materials (strawberry seeds and pistachio shells) were used for preparation of activated carbons by two various methods. Chemical activation using acetic acid and physical activation with gaseous agents (carbon dioxide and water vapor) were chosen as mild and environmentally friendly methods. The effect of type of raw material, temperature, and activation agent on the porous structure characteristics of the materials was discussed applying various methods of analysis. The best obtained activated carbons were characterized by high values of specific surface area (555–685 m2/g). The Guinier analysis of small-angle X-ray scattering (SAXS) curves showed that a time of activation affects pore size. The samples activated using carbon dioxide were characterized mostly by the spherical morphology of pores. Adsorbents were utilized for removal of the model organic pollutants from the single- and multicomponent systems. The adsorption capacities for the 4-chloro-2-methyphenoxyacetic acid (MCPA) removal were equal to 1.43–1.56 mmol/g; however, for adsorbent from strawberry seeds it was much lower. Slight effect of crystal violet presence on the MCPA adsorption and inversely was noticed as a result of adsorption in different types of pores. For similar herbicides strong competition in capacity and adsorption rate was observed. For analysis of kinetic data various equations were used.

show abstract

Section: Introductionmentioning

confidence: 99%

Activated Carbon from Agricultural Wastes for Adsorption of Organic Pollutants

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Meanwhile, Fe °/Cu, activated carbon, and the sand/zeolite mixture had a removal efficiency of 84.1%, 23.01%, and 14.0%, respectively. Faisal et al [102] converted inert sand into a reactive material by coating the surface with humic acid nanoparticles that were extracted from sewage sludge. The coated sand-humic acid (CSHA) ability for the simultaneous removal of copper and cadmium from groundwater was investigated.…”

Section: Treatment Of Groundwater By Permeable Reactive Barriermentioning

confidence: 99%

Removal of Toxic Elements and Microbial Contaminants from Groundwater Using Low-Cost Treatment Options

et al. 2021

View full text Add to dashboard Cite

Purpose of Review This paper reviews various low-cost treatment techniques such as adsorption, permeable reactive barrier, and biological techniques for the simultaneous removal of chemical and microbial contaminants from groundwater and discusses treatment mechanisms of different treatment techniques. This paper also discusses the challenges of groundwater treatment, how to choose the appropriate treatment technique, and cost analysis of groundwater treatment. Recent Findings Various treatment technologies have been used for the treatment of groundwater: physical, chemical, and biological technologies with different success rates. In the literature, various adsorbents have been successfully synthesized from low-cost and environmentally friendly materials. Adsorption is considered an efficient treatment technique for the removal of both toxic elements and pathogens by utilizing different adsorbents. For example, the nanostructures of MgO with a BET surface area of up to 171 m2/g obtained a very high adsorption capacity of 29,131 mg/g for fluoride ions in water, while the incorporation of iron in activated carbon has improved its adsorption capacity to 51.3 mg/g for arsenic. Moreover, certain adsorbents have shown the capability to remove 99% of the rotavirus and adenovirus from groundwater. Summary Groundwater resources are contaminated with toxic metals and pathogens. Therefore, water treatment technologies should be evaluated for their efficiency to remove such contaminants. Determination of the most cost-effective and efficient treatment technique is not an easy task and requires the understanding of various aspects such as the contaminants present in water, the reuse options considered, and cost analysis of the treatment technique.

show abstract

“…In addition, the permeable reactive barrier (PRB) method was presented as an alternative for treatment of polluted subsurface water and results of many studies proved that this method is effective and efficient in the reclamation of groundwater. Since the ending of the first decade from the present century, integration of the sustainability concepts and practices of green technology has been the aim of PRB studies, because it is considered by regulatory agencies as a key design element in almost every treatment strategy [ 4 , 5 , 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

New Composite Sorbent for Removal of Sulfate Ions from Simulated and Real Groundwater in the Batch and Continuous Tests

et al. 2021

View full text Add to dashboard Cite

The evaluation of groundwater quality in the Dammam formation, Faddak farm, Karbala Governorate, Iraq proved that the sulfate (SO42−) concentrations have high values; so, this water is not suitable for livestock, poultry and irrigation purposes. For reclamation of this water, manufacturing of new sorbent for permeable reactive barrier was required through precipitation of Mg and Fe hydroxides nanoparticles on the activated carbon (AC) surface with best Mg/Fe molar ratio of 7.5/2.5. Mixture of 50% coated AC and 50% scrap iron was applied to eliminate SO42− from contaminated water with efficiency of 59% and maximum capacity of adsorption equals to 9.5 mg/g for a time period of 1 h, sorbent dosage 40 g/L, and initial pH = 5 at 50 mg/L initial SO42− concentration and 200 rpm shaking speed. Characterization analyses certified that the plantation of Mg and Fe nanoparticles onto AC was achieved. Continuous tests showed that the longevity of composite sorbent is increased with thicker bed and lower influent concentration and flow rate. Computer solution (COMSOL) software was well simulated for continuous measurements. The reclamation of real contaminated groundwater was achieved in column set-up with efficiency of 70% when flow rate was 5 mL/min, bed depth was 50 cm and inlet SO42− concentration was 2301 mg/L.

show abstract

Humic acid coated sand as a novel sorbent in permeable reactive barrier for environmental remediation of groundwater polluted with copper and cadmium ions

Cited by 34 publications

References 50 publications

Activated Carbon from Agricultural Wastes for Adsorption of Organic Pollutants

Activated Carbon from Agricultural Wastes for Adsorption of Organic Pollutants

Removal of Toxic Elements and Microbial Contaminants from Groundwater Using Low-Cost Treatment Options

New Composite Sorbent for Removal of Sulfate Ions from Simulated and Real Groundwater in the Batch and Continuous Tests

Contact Info

Product

Resources

About