Biochar-based composites for removing chlorinated organic pollutants: Applications, mechanisms, and perspectives

Environmental Science and Ecotechnology, Journal Year: 2024, Volume and Issue: 21, P. 100420 - 100420

Published: April 12, 2024

Chlorinated organic pollutants constitute a significant category of persistent due to their widespread presence in the environment, which is primarily attributed expansion agricultural and industrial activities. These are characterized by persistence, potent toxicity, capability for long-range dispersion, emphasizing importance eradication mitigate environmental pollution. While conventional methods removing chlorinated encompass advanced oxidation, catalytic bioremediation, utilization biochar has emerged as prominent green efficacious method recent years. Here we review biochar's role remediating typical organics, including polychlorinated biphenyls (PCBs), triclosan (TCS), trichloroethene (TCE), tetrachloroethylene (PCE), organochlorine pesticides (OCPs), chlorobenzenes (CBs). We focus on impact material properties adsorption mechanisms organics. This highlights use sustainable eco-friendly pollutants, especially when combined with biological or chemical strategies. Biochar facilitates electron transfer efficiency between microorganisms, promoting growth dechlorinating bacteria mitigating toxicity organics through adsorption. Furthermore, can activate processes such oxidation nano zero-valent iron, generating free radicals decompose compounds. observe broader application bioprocesses treating soil, reducing impacts. Conversely, water-based integrating proved more effective, leading superior purification results. contributes theoretical practical pollutants.

Language: Английский

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Combined transcriptomic and metabolomic analyses of temperature response of microalgae using waste activated sludge extracts for promising biodiesel production

Water Research, Journal Year: 2024, Volume and Issue: 251, P. 121120 - 121120

Published: Jan. 8, 2024

Language: Английский

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Thallium-mediated NO signaling induced lipid accumulation in microalgae and its role in heavy metal bioremediation

Water Research, Journal Year: 2023, Volume and Issue: 239, P. 120027 - 120027

Published: May 1, 2023

Language: Английский

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New insights into rare earth element-induced microalgae lipid accumulation: Implication for biodiesel production and adsorption mechanism

Water Research, Journal Year: 2024, Volume and Issue: 251, P. 121134 - 121134

Published: Jan. 13, 2024

Language: Английский

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Lipid production characteristics of a newly isolated microalga Asterarcys quadricellulare R-56 as biodiesel feedstock

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 30(16), P. 48339 - 48350

Published: Feb. 9, 2023

Language: Английский

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Lipidomics analysis of microalgal lipid production and heavy metal adsorption under glycine betaine-mediated alleviation of low-temperature stress

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 135831 - 135831

Published: Sept. 13, 2024

Language: Английский

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Sustainable management and valorization of biomass wastes using synthetic microbial consortia

Bioresource Technology, Journal Year: 2024, Volume and Issue: 395, P. 130391 - 130391

Published: Feb. 1, 2024

Language: Английский

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Advances in Nitrogen-Rich Wastewater Treatment: A Comprehensive Review of Modern Technologies

Sustainability, Journal Year: 2024, Volume and Issue: 16(5), P. 2112 - 2112

Published: March 3, 2024

Nitrogen-rich wastewater is a major environmental issue that requires proper treatment before disposal. This comprehensive overview covers biological, physical, and chemical nitrogen removal methods. Simultaneous nitrification–denitrification (SND) most effective in saline water when utilizing both aerobic anoxic conditions with diverse microbial populations for removal. Coupling anammox denitrification could increase rates reduce energy demand. Suspended growth bioreactors effectively treated COD/N ratios demonstrated resilience to low C/N ratios. Moving biofilm exhibit reduced mortality rates, enhanced sludge–liquid separation, increased efficiency, stronger biological structures. SND studies show ≥90% total efficiency (%RETN) setups, Defluviicoccus, Nitrosomonas, Nitrospira as the main communities, while anammox–denitrification achieved %RETN of 77%. Systems using polyvinyl alcohol/sodium alginate medium showed ≥ 75%. Air-lift reflux configurations exhibited high %RENH4, reducing costs minimizing sludge formation. Microwave pretreatment high-frequency electric fields be used improve %RENH4. Adsorption/ion exchange, membrane distillation, ultrafiltration, nanofiltration promise industrial treatment. AOPs sulfate-based oxidants eliminate compounds from wastewater. Tailoring proposed treatments cost-effective removal, optimizing interactions, analyzing techno-economics emerging technologies are crucial.

Language: Английский

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Degradation of methylene blue using a novel magnetic CuNiFe2O4/g-C3N4 nanocomposite as heterojunction photocatalyst

Diamond and Related Materials, Journal Year: 2023, Volume and Issue: 133, P. 109716 - 109716

Published: Jan. 23, 2023

Language: Английский

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Insights into the Effect of Rhamnolipids on the Anaerobic Fermentation and Microalgae Lipid Production of Waste Activated Sludge: Performance and Mechanisms

ACS ES&T Engineering, Journal Year: 2023, Volume and Issue: 3(3), P. 438 - 448

Published: Jan. 21, 2023

In the last few years, production of waste activated sludge (WAS) has increased dramatically, and treatment disposal have attracted widespread attention. this study, rhamnolipids were used to improve efficiency hydrogen from WAS, fermentation solution was as a substrate by lipid-producing microalgae recover resources generate clean energy. Results showed that had best effect among several surfactants in promoting production, WAS added with 0.4 g/g TS reached 178.48 ± 6.07 mL/g TS, which improved 13.53 times compared control group. The content SCOD, soluble protein, polysaccharide addition rhamnolipid 9.19, 11.46, 42.28 times, respectively, indicating could hydrolysis led an increase production. And three-dimensional excitation–emission matrix fluorescence spectroscopic analysis intensity dissolved organic matter increased, suggesting rise microbial metabolites. composition volatile fatty acids type mainly butyric acid-type high concentrations n-butyric acid (9330.14 525.33 mg/L) acetic (6324.07 80.67 mg/L). addition, community structure system dominant genus Clostridium sensu stricto. Microalgae can utilize acid, ethanol, NH4+-N, PO43–-P, proteins, polysaccharides grow produce lipids. biomass lipid productivity cultured 3.16 0.58 g/L 356.86 4.91 mg/L/day, respectively. contained 84.57 4.33% saturated content, more favorable for biodiesel This study not only successfully utilized promote but also coupled system, further laying foundation realizing resource utilization energy

Language: Английский

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