Scientometric study of treatment technologies of soil pollution: Present and future challenges

Valdiviezo-Gonzáles, Lorgio; Castañeda-Olivera, Carlos Alberto; Torres, Rita Cabello; Ávila, Fausto Fernando García; Cerrón, Rubén Víctor Munive; Paredes, Emigdio Antonio Alfaro

doi:10.1016/j.apsoil.2022.104695

Cited by 5 publications

(2 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different technologies have emerged to remediate soils, among which are physicochemical strategies such as soil washing, electrokinetic remediation, chemical oxidation, remediation with nanomaterials, electrodialysis, leaching, stabilization, and landfilling. − However, these methods are often expensive due to the high price of off-site waste disposal, not to mention the secondary environmental problems they can cause . An alternative is phytoremediation, a highly effective and promising technology to decontaminate, in this case, HM-contaminated matrices such as soil by natural means. − This biological technology has established itself as an attractive alternative for the treatment of environmental pollution. , Although there are several specific definitions, the basic definition involves the cultivation of plants in a contaminated substrate in order to eliminate, transform, or stabilize the environmental pollutants present. , This method has been successfully used for the remediation of HMs in contaminated soils because it is a more effective and economical technique than other engineering techniques such as excavation, soil washing, incineration, solidification, and others . However, poor soil physicochemical properties, such as low nutrient content and extreme pH, combined with high concentrations of metals and metalloids, can prevent soil vegetation from growing.…”

Section: Introductionmentioning

confidence: 99%

“… 23 An alternative is phytoremediation, a highly effective and promising technology to decontaminate, in this case, HM-contaminated matrices such as soil by natural means. 24 − 26 This biological technology has established itself as an attractive alternative for the treatment of environmental pollution. 27 , 28 Although there are several specific definitions, the basic definition involves the cultivation of plants in a contaminated substrate in order to eliminate, transform, or stabilize the environmental pollutants present.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Phosphorus-Loaded Biochar-Assisted Phytoremediation to Immobilize Cadmium, Chromium, and Lead in Soils

Serrano,

López,

Henao

et al. 2024

ACS Omega

View full text Add to dashboard Cite

Soil contamination with heavy metals (HM) poses significant challenges to food security and public health, requiring the exploration of effective remediation strategies. This study aims to evaluate the remediation process of soils contaminated with Cd, Cr, and Pb using Lolium perenne assisted by four types of biochar: (i) activated coffee husk biochar (BAC), (ii) nonactivated biochar coffee husk (BSAC), (iii) activated sugar cane leaf biochar (BAA), and (iv) nonactivated biochar sugar cane leaf (BSAA). Biochar, loaded with phosphorus (P), was applied to soils contaminated with Cd, Cr, and Pb. L. perenne seedlings, averaging 2 cm in height, were planted. The bioavailability of P and heavy metals (HM) was monitored every 15 days until day 45, when the seedlings reached an average height of 25 cm. At day 45, plant harvesting was conducted and stems and roots were separated to determine metal concentrations in both plant parts and the soil. The study shows that the combined application of biochar and L. perenne positively influences the physicochemical properties of the soil, resulting in an elevation of pH and electrical conductivity (EC). The utilization of biochar contributes to an 11.6% enhancement in the retention of HM in plant organs. The achieved bioavailability of heavy metals in the soil was maintained at levels of less than 1 mg/kg. Notably, Pb exhibited a higher metal retention in plants, whereas Cd concentrations were comparatively lower. These findings indicate an increase in metal immobilization efficiencies when phytoremediation is assisted with P-loaded biochar. This comprehensive assessment highlights the potential of biochar-assisted phytoremediation as a promising approach for mitigating heavy metal contamination in soils.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phosphorus-Loaded Biochar-Assisted Phytoremediation to Immobilize Cadmium, Chromium, and Lead in Soils

Serrano,

López,

Henao

et al. 2024

ACS Omega

View full text Add to dashboard Cite

show abstract

Research progress and hotspots on microbial remediation of heavy metal-contaminated soil: a systematic review and future perspectives

Li,

Gao,

Ning

et al. 2023

Environ Sci Pollut Res

View full text Add to dashboard Cite

Integration of high-rate filtration using waste-derived biochar as a potential sustainable technology for drinking water supply

García-Ávila,

Galarza-Guamán,

Barros-Bermeo

et al. 2023

Biochar

View full text Add to dashboard Cite

This research aimed to evaluate the efficiency of eucalyptus (E) and bamboo (B) residual biomass biochars as filter materials for drinking water treatment. The efficiencies of these two biochars in the rapid filtration process were evaluated using water (raw, flocculated and settled) at the rate of 120 m3/m2/d. Finding that bamboo biochar manufactured under a slow pyrolysis process "b" (Bb) had the best performance. Subsequently, Bb was evaluated with three different granulometries, and it was found that the effective size with the best performance was the finest (0.6–1.18 mm). Subsequently, this biochar was compared with conventional filter materials such as gravel, sand and anthracite, using different types of water (raw, flocculated and settled) and at different filtration rates (120 and 240 m3/m2/d), and it was found that the filter material with the best performance was precisely biochar, with average removal efficiencies of 64.37% turbidity and 45.08% colour for raw water; 93.9% turbidity and 90.75% colour for flocculated water, and 80.79% turbidity and 69.03% colour for settled water. The efficiency using simple beds of sand, biochar, anthracite and gravel at the rate of 180 m3/m2/d was 75.9% copper, 90.72% aluminium, 95.7% iron, 10.9% nitrates, 94.3% total coliforms and 88.9% fecal coliforms. The efficiencies achieved by biochar were higher compared to those of conventional filter materials. It was also found that biochar contributes to improving the performance of sand and anthracite in mixed beds. Additionally, it was possible to demonstrate that the volume of washing water required for the biochar is lower compared to the other filter beds. Finally, it is recommended to carry out more tests for the purification of water with biochars from rural areas affected by the mining and oil exploitation, as well as the purification of seawater with biochars from coastal areas with residues from dry forests and organic residues from municipalities. Graphical abstract

show abstract

Scientometric study of treatment technologies of soil pollution: Present and future challenges

Cited by 5 publications

References 71 publications

Phosphorus-Loaded Biochar-Assisted Phytoremediation to Immobilize Cadmium, Chromium, and Lead in Soils

Phosphorus-Loaded Biochar-Assisted Phytoremediation to Immobilize Cadmium, Chromium, and Lead in Soils

Research progress and hotspots on microbial remediation of heavy metal-contaminated soil: a systematic review and future perspectives

Integration of high-rate filtration using waste-derived biochar as a potential sustainable technology for drinking water supply

Contact Info

Product

Resources

About