Application of Magnesium and Copper Functionalized Biochar Composites in Treating Cyanobacteria in Oil-Impacted Eutrophic Water

IF 3.8 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Water, Air, & Soil Pollution Pub Date : 2025-04-05 DOI:10.1007/s11270-025-07893-4

Zhuo Wei, Yaheng Yang, Yi Wei, Shuai Niu, Ronghua Li, Baoyue Zhou, Yang Liu, Jim J. Wang

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Abstract

Remediation of eutrophic water is a challenging task. Modification of biochar has been demonstrated to enhance the removal ability of contamination of biochar. In this work, magnesium (Mg) and copper (Cu) were incorporated in biochar during preparation to increase the removal of phosphate (P) and inhibit algae bloom. The results showed that Mg-modification significantly (p < 0.05) improved the adsorption of phosphate, and the adsorption capacity was 138.7 mg g⁻¹, and the improvement on P removal was attributed by the formation of MgO which enhanced the sorption affinity on PO₄³⁻. In addition, Cu-modification showed significant (p < 0.05) inhibition effect on growth of cyanobacteria as compared to original biochar with biomass decrease of 62% for Cu-biochar and 85% for Cu-Mg-biochar after three week incubation. Among all modified biochar composites, Cu-Mg-biochar showed highest inhibition effect due to the removal of nutrient and directly causing cell lysis. Moreover, in the water co-existing with different ratios of oil and PO₄³⁻, Cu-Mg-biochar showed highest (p < 0.05) efficiency in inhibition on the growth of toxic cyanobacteria, biomass decreased from 2.85 mg L⁻¹ to 0.20 mg L⁻¹. Overall, Cu-Mg-biochar composite was suggested effective remediation material in treating oil-impacted eutrophic water.

Graphical Abstract

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应用镁铜功能化生物炭复合材料处理受石油影响的富营养化水体中的蓝藻

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来源期刊

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.