Removal of Cu, Pb and Zn from stormwater using an industrially manufactured sawdust and paddy husk derived biochar

Wijeyawardana, Pamodithya; Nanayakkara, Nadeeshani; Gunasekara, Chamila; Karunarathna, A. K.; Law, David W.; Pramanik, Biplob Kumar

doi:10.1016/j.eti.2022.102640

Cited by 39 publications

(18 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In all cases, there is a higher affinity for Pb(II) and Cu(II) than for Zn(II), as evidenced by the shape of the isotherms. The results obtained are consistent with previous studies 57 , 58 . Thus, the ability of biochar from sugar beet to absorb HM decreased in the series Cd(II) > Ni(II) > Pb(II) > Cu(II), biochar obtained from dairy production waste: Pb(II) > Cu(II) > Cd(II) > Ni(II) 59 .…”

Section: Discussionsupporting

confidence: 93%

Fabrication of biochar derived from different types of feedstocks as an efficient adsorbent for soil heavy metal removal

Burachevskaya

Minkina

Bauer

et al. 2023

Sci Rep

View full text Add to dashboard Cite

For effective soil remediation, it is vital to apply environmentally friendly and cost-effective technologies following the notion of green sustainable development. In the context of recycling waste and preserving nutrients in the soil, biochar production and utilization have become widespread. There is an urgent need to develop high-efficiency biochar-based sorbents for pollution removal from soil. This research examined the efficacy of soil remediation using biochar made from three distinct sources: wood, and agricultural residues (sunflower and rice husks). The generated biochars were characterized by SEM/SCEM, XRF, XRD, FTIR, BET Specific Surface Area, and elemental compositions. The presence of hydroxyl and phenolic functional groups and esters in wood, sunflower and rice husk biochar were noted. The total volume of pores was in the following descending order: rice husk > wood > sunflower husk. However, wood biochar had more thermally stable, heterogeneous, irregular-shaped pores than other samples. Adsorption of soil-heavy metals into biochars differed depending on the type of adsorbent, according to data derived from distribution coefficients, sorption degree, Freundlich, and Langmuir adsorption models. The input of biochars to Calcaric Fluvic Arenosol increased its adsorption ability under contamination by Cu(II), Zn(II), and Pb(II) in the following order: wood > rice husk > sunflower husk. The addition of sunflower husk, wood, and rice husk biochar to the soil led to an increase in the removal efficiency of metals in all cases (more than 77%). The increase in the percentage adsorption of Cu and Pb was 9–19%, of Zn was 11–21%. The present results indicated that all biochars functioned well as an absorbent for removing heavy metals from soils. The tailor-made surface chemistry properties and the high sorption efficiency of the biochar from sunflower and rice husks could potentially be used for soil remediation.

show abstract

Section: Discussionsupporting

confidence: 93%

Fabrication of biochar derived from different types of feedstocks as an efficient adsorbent for soil heavy metal removal

Burachevskaya

Minkina

Bauer

et al. 2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…This affirmation is supported by the decrease in the values recorded for P and S from 0.20 to 0.13%, and 0.18 to 0.1% (Figure 2b), respectively. This behavior was also reported by P. Wijeyawardana et al [34] and S. Suman et al [35]. A rougher surface area and the broadly distributed pores of UBT-TT can offer an effective surface area and more opportunities for the binding of nitrate ions.…”

Section: Energy Dispersed X-ray (Edx) Measurementssupporting

confidence: 81%

Black Tea Waste as Green Adsorbent for Nitrate Removal from Aqueous Solutions

Bondarev,

Popovici,

Călin

et al. 2023

Materials

View full text Add to dashboard Cite

The aim of the study was to prepare effective low-cost green adsorbents based on spent black tea leaves for the removal of nitrate ions from aqueous solutions. These adsorbents were obtained either by thermally treating spent tea to produce biochar (UBT-TT), or by employing the untreated tea waste (UBT) to obtain convenient bio-sorbents. The adsorbents were characterized before and after adsorption by Scanning Electron Microscopy (SEM), Energy Dispersed X-ray analysis (EDX), Infrared Spectroscopy (FTIR), and Thermal Gravimetric Analysis (TGA). The experimental conditions, such as pH, temperature, and nitrate ions concentration were studied to evaluate the interaction of nitrates with adsorbents and the potential of the adsorbents for the nitrate removal from synthetic solutions. The Langmuir, Freundlich and Temkin isotherms were applied to derive the adsorption parameters based on the obtained data. The maximum adsorption intakes for UBT and UBT-TT were 59.44 mg/g and 61.425 mg/g, respectively. The data obtained from this study were best fitted to the Freundlich adsorption isotherm applied to equilibrium (the values R2 = 0.9431 for UBT and R2 = 0.9414 for UBT-TT), this assuming the multi-layer adsorption onto a surface with a finite number of sites. The Freundlich isotherm model could explain the adsorption mechanism. These results indicated that UBT and UBT-TT could serve as novel biowaste and low-cost materials for the removal of nitrate ions from aqueous solutions.

show abstract

“…For sawdust, various heavy metals of Pb(II), Cu(II), and Ni(II) are removed by sawdust modifications by poly (N-acryloyl-l-histidine) and chitosan nanocomposite beads 22,23 . For paddy husk, it is used for producing biochar for Pb(II), Cu(II), and Zn(II) removals 24 . Among those adsorbents, since bagasse has been popularly used for removing heavy metals in wastewater because of the good chemical properties of cellulose, hemicellulose, lignin, carboxyl, or hydroxyl groups, it is a good choice for lead removal in wastewater.…”

mentioning

confidence: 99%

Modification of sugarcane bagasse with iron(III) oxide-hydroxide to improve its adsorption property for removing lead(II) ions

Praipipat

Ngamsurach

Sanghuayprai

2023

Sci Rep

View full text Add to dashboard Cite

Lead contamination in wastewater results in toxicity of aquatic life and water quality, it is recommended to remove lead before discharging. Four sugarcane bagasse adsorbent materials of sugarcane bagasse powder (SB), sugarcane bagasse powder doped iron(III) oxide-hydroxide (SBF), sugarcane bagasse powder beads (SBB), and sugarcane bagasse powder doped iron(III) oxide-hydroxide beads (SBFB) were synthesized and characterized with various techniques. Their lead removal efficiencies were investigated by batch experiments on the effects of dose (0.1–0.6 g), contact time (1–6 h), pH (1, 3, 5, 7, 9, 11), and concentration (5–30 mg/L), adsorption isotherms, kinetics, and desorption experiments. All materials were amorphous phases presenting specific peaks of cellulose. SBB and SBFB detected sodium alginate peaks, and iron(III) oxide-hydroxide peaks were detected in SBF and SBFB. SB and SBF were scales or overlapping plate surfaces whereas SBB and SBFB had spherical shapes with coarse surfaces. The main functional groups of O–H, C=O, C–H, C–O, and C=C were observed in all materials, whereas Fe–O and –COOH were only found in materials with adding iron(III) oxide-hydroxide or bead material. The point of zero charges (pHpzc) of all materials was higher than 4. The optimum conditions of SB, SBF, SBB, and SBFB with the highest lead removal efficiency at a lead concentration of 10 mg/L and pH 5 were 0.6 g and 6 h (96.08%), 0.2 g and 3 h (100%), 0.2 g and 2 h (98.22%), and 0. 1 g and 2 h (100%), respectively. Since SBFB spent less adsorbent dose and contact time than other materials with a lead removal efficiency of 100%, it was a more potential adsorbent than other materials. Thus, adding iron(III) oxide-hydroxide and changing material form helped to improve material efficiencies for lead adsorption. The maximum adsorption capacities of SB, SBF, SBB, and SBFB were 6.161, 27.027, 23.697, and 57.471 mg/L, respectively by fitting the Langmuir model. Langmuir isotherm was best fitted for SB and SBB, whereas the Freundlich model was best fitted for SBF and SBFB. The pseudo-second-order kinetic model was best fitted for all materials. Moreover, all adsorbents could be reused for more than 5 cycles with the lead removal efficiency of more than 73%. Therefore, SBFB was potential material to further apply for lead removal in industrial applications.

show abstract

Removal of Cu, Pb and Zn from stormwater using an industrially manufactured sawdust and paddy husk derived biochar

Cited by 39 publications

References 53 publications

Fabrication of biochar derived from different types of feedstocks as an efficient adsorbent for soil heavy metal removal

Fabrication of biochar derived from different types of feedstocks as an efficient adsorbent for soil heavy metal removal

Black Tea Waste as Green Adsorbent for Nitrate Removal from Aqueous Solutions

Modification of sugarcane bagasse with iron(III) oxide-hydroxide to improve its adsorption property for removing lead(II) ions

Contact Info

Product

Resources

About