Sewage sludge-derived biochar for the adsorptive removal of wastewater pollutants: A critical review

Rangabhashiyam, S.; Lins, Pollyanna Vanessa dos Santos; Oliveira, L. M. T. M.; Sepúlveda, Pamela; Ighalo, Joshua O.; Rajapaksha, Anushka Upamali; Meili, Lucas

doi:10.1016/j.envpol.2021.118581

Cited by 108 publications

(26 citation statements)

References 137 publications

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“…The porosity and the specific surface of the resulting ash material are also altered. In particular, during combustion at high temperatures of post-digestion sewage sludge with the nanostructural additives halloysite and kaolinite, there is a possibility of chemical transformation of these components and possible interactions with the complex residue biological material of the raw post-digestion sewage sludge [ 35 , 48 , 49 , 50 ].…”

Section: Discussionmentioning

confidence: 99%

“…Also, on the basis of the test results reported in the literature [ 35 , 48 , 49 , 50 ] it can be seen, that the increased fraction of sewage sludge in the combustion material causes an increased diversity, as well as the concentration of various surface functional groups. This, together with the available surface area of interfacial contact, is probably mainly responsible for the enhanced adsorption effects.…”

Section: Discussionmentioning

confidence: 99%

“…Parameters such as polarity, specific surface area developed, combination and concentration of surface functional groups, as well as aromatization degree together with graphitization degree resulting directly from their intrinsic chemical composition [ 32 ] may play a key role in adsorption processes. The review of potential applications of sewage sludge ashes in the processes of adsorptive removal of pollutants from wastewater and some pharmaceuticals is presented in the reviews [ 35 , 36 ].…”

Section: Introductionmentioning

confidence: 99%

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Innovative Technological Approach for the Cyclic Nutrients Adsorption by Post-Digestion Sewage Sludge-Based Ash Co-Formed with Some Nanostructural Additives under a Circular Economy Framework

Sakiewicz

Piotrowski

Rajca

et al. 2022

IJERPH

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This paper presents a new, innovative technological approach, in line with Circular Economy principles, to the effective management of sludge generated during municipal wastewater treatment processes and subsequently used for biogas production. This approach allows for optimal, functional, and controlled cascade-type biotechnological thermal conversion of carbon compounds present in sewage sludge, later in solid digestate residues (after biogas production), and finally in the ash structure (after incineration, purposefully dosed nanostructural additives make the production of a useful solid product possible, especially for cyclic adsorption and slow release of nutrients (N, P, K) in the soil). The idea is generally targeted at achieving an innovative conversion cycle under a Circular Economy framework. In particular, it is based on an energy carrier (methane biogas) and direct energy production. The functionalized combustion by-products can be advantageous in agriculture. The use of ashes with nanostructural additives (halloysite, kaolinite) from combustion of sewage sludge after the anaerobic fermentation as an adsorbent of selected nutrients important in agriculture (Na+, K+, NO3−, SO42−, PO43−, Cl−) was verified at laboratory scale. The tests were carried out both for pure ash and for the ash derived from combustion with the purposeful addition of kaolinite or halloysite. The equilibrium conditions for nitrate, potassium, sodium, phosphate(V), sulphate(VI), and chloride ions from aqueous solutions with the use of the three adsorbent structures were determined. The obtained innovative results were interpreted theoretically with adsorption isotherm models (Langmuir, Freundlich, Temkin, Jovanović). The most spectacular and clearly favorable results related to the influence of nanostructural additives in the process of sludge combustion, and formation of sorption surfaces under high temperature conditions were identified in the case of sorption-based separation of phosphate(V) ions (an increase from 1.13% to 61.24% with the addition of kaolinite, and even up to 76.19% with addition of halloysite).

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Innovative Technological Approach for the Cyclic Nutrients Adsorption by Post-Digestion Sewage Sludge-Based Ash Co-Formed with Some Nanostructural Additives under a Circular Economy Framework

Sakiewicz

Piotrowski

Rajca

et al. 2022

IJERPH

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“…Biochar is a carbon-based solid product produced from agricultural and food processing waste, manure, or sewage sludge (Yargicoglu et al, 2015;Domingues et al, 2017a;Lee et al, 2019;Qin et al, 2019;Kumar et al, 2021;Marinos et al, 2022;Rangabhashiyam et al, 2022) and it is derived from the heat-treatment of these biomasses under limited or absent oxygen supply. Biochar is known to affect atmospheric carbon sequestration by working as a CO 2 sink (Domingues et al, 2017b), to favour water and nutrient retention and for improving soil quality (Igalavithana et al, 2015),and fertility (Ding et al, 2016) and health also for stimulating soil microbiota (Gujre et al, 2021;He et al, 2021a).…”

Section: Introductionmentioning

confidence: 99%

Building a risk matrix for the safety assessment of wood derived biochars

Marmiroli

Caldara

Pantalone

et al. 2022

Science of The Total Environment

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“…The other parameters affecting the sorption properties are the specific surface area, porosity, pH of biochar, ash content, surface charge, functional group content, volatile matter content, carbon, hydrogen, oxygen and other compounds, including minerals (Amalina et al, 2022). By the appropriate selection of the conversion process conditions, such as temperature, heating and retention time, it is possible to obtain biochars with appropriate physicochemical properties (Rajapaksha et al, 2016), (Rangabhashiyam et al, 2022). In many cases, it turns out that the properties of pristine biochar are not satisfactory.…”

Section: Introductionmentioning

confidence: 99%

Comparison of sorption capacity of biochar-based sorbents for capturing heavy-metallic ions from water media

Bąk¹

2022

Physicochem. Probl. Miner. Process.

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To develop the sorption efficiency of heavy metals: Cd(II), Co(II), Zn(II) and Pb(II) ions the biochar was modified by chitosan, FeSO4 and NaBH4. The morphology, physical structure and chemical composition of the biochar based sorbents were characterized by the scanning electron miscroscopy method, N2 adsorption and desorption isotherms, X-ray diffractometry as well as the Fourier transform infrared spectroscopywith the attenuated total reflectance analyses. The research of M(II) ions sorption was carried out as a function of pH (2-6), interaction time (0-360 minutes) and temperature (293, 313, 333 K). The maximum sorption was obtained by the ChBC for Zn(II) ions -19.23 mg/g and for MBC-Pb(II) -19.11 mg/g. Different kinetic models as well as both isotherm and thermodynamic equations were used the sorption data modelling. For Cd(II), Co(II) and Zn(II) ions the nonlinear regression of the Elovich equation gave the best fit for the experimental data. On the other hand, for Pb(II) ions, the nonlinear forms of pseudo first order and pseudo second order show a better match. The value of the correlation coefficient >0.960 determined from the Freundlich isotherm model is the highest suggesting a good fit to the experimental data. The thermodynamic parameters: ∆G°, ∆H° and ∆S° were listed and indicated that the process is spontaneous and endothermic in nature. The desorption efficiency was determined with the use of nitric, hydrochloric and sulfuric acids and the largest desorption yield for Pb(II)-ChBC equal 99.5 % was gained applying HNO3.

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Sewage sludge-derived biochar for the adsorptive removal of wastewater pollutants: A critical review

Cited by 108 publications

References 137 publications

Innovative Technological Approach for the Cyclic Nutrients Adsorption by Post-Digestion Sewage Sludge-Based Ash Co-Formed with Some Nanostructural Additives under a Circular Economy Framework

Innovative Technological Approach for the Cyclic Nutrients Adsorption by Post-Digestion Sewage Sludge-Based Ash Co-Formed with Some Nanostructural Additives under a Circular Economy Framework

Building a risk matrix for the safety assessment of wood derived biochars

Comparison of sorption capacity of biochar-based sorbents for capturing heavy-metallic ions from water media

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