Articles tagged with Environmental Remediation
A nonrandomized trial found that aggregate neighborhood environmental interventions, including abandoned house remediation, significantly reduced fatal opioid overdoses. Community trash pickup and vacant lot cleanup were not associated with significant reductions or increases in opioid overdose rates.
Researchers expand potential of using bacterial spores for chemical reactions, biofuel production, and pollutant breakdown. New proteins fused to spore coat enable storage under extreme conditions without refrigeration.
New research reveals biochar's reactive chemistry can slow soil organic carbon decomposition by suppressing enzymes, particularly in acidic soils. The protective effect varies among different soils, with some biochars increasing carbon dioxide emissions.
A global analysis of 932 observations shows that biochar delivers stronger carbon gains in nitrogen-poor soils and follows different carbon storage pathways depending on soil fertility. Biochar effectiveness varies greatly from one field to another, with the amount of nitrogen already present in soil controlling how much carbon it stores.
Researchers found that chitosan-functionalized biochar reduced plant-available arsenic by 21.1% and lowered arsenic concentrations in rice grains by 43.1%. The modified biochar continued to reduce arsenic accumulation after six months of natural aging, supporting healthier root development.
Researchers have developed a biochar adsorbent that combines physical and chemical interactions to capture tetracycline molecules. The material showed high tetracycline adsorption capacity and good resistance to coexisting ions, suggesting potential for repeated operation.
A two-year field study shows that biochar-derived from rice straw improves soil health and crop resilience to saline-sodic stress. Biochar enhances nitrogen metabolism, increases yield, and reduces oxidative stress, making it a promising strategy for sustainable rice production in salt-affected regions.
A new study reveals how biochar can directly suppress destructive soil-borne pathogens like Ralstonia solanacearum, while helping rebuild a richer and more stable soil bacterial community. Biochar's reactive oxygen species profile changes with pyrolysis temperature, making it a powerful tool for precision agriculture.
A new study suggests that pairing iron and manganese modified biochar with carefully chosen irrigation strategies can reduce cadmium and mercury buildup in rice. FMBC helped stabilize both metals while reshaping microbial processes to control methylmercury formation.
A new study reveals that biochar increases soil organic carbon more efficiently than straw by guiding microbes towards stable carbon formation. Biochar promotes a slower but more stable carbon pathway, reducing native soil carbon mineralization.
Colorado State University researchers propose strategies to immobilize toxic metals and prevent plant uptake in rice grains, protecting food security and public health. The approach aims to reduce arsenic, cadmium, and mercury contamination in rice paddies using nanomaterials and chemical reactions.
A new review compares conventional and microwave-assisted pyrolysis, showing how microwave heating can tailor biochar for removing metals, dyes, pharmaceuticals, and microplastics. Microwave-derived biochars often show higher surface area, stronger mesoporosity, and greater retention of oxygen-containing functional groups.
A new process-based model predicts how biochar affects crop yields, soil carbon, and greenhouse gas emissions. The DLEM-Ag-Biochar model performed well against field observations, capturing patterns in agricultural systems across different environmental and management conditions.
A two-year field experiment in subtropical China shows that combining nitrogen transformation inhibitors with biochar can reduce harmful nitrogen gas emissions while supporting tea productivity. The treatment combining biochar and dual inhibitors also increased tea yield by 6.7% and plant nitrogen uptake by 14.4%.
BIOCHAR has achieved a 2025 Impact Factor of 15.1, ranking No. 1 worldwide in Soil Science for five consecutive years and 11th among 395 journals in Environmental Sciences. The journal publishes original studies on biochar production, processing, and applications in fields like agronomy, environmental science, and materials science.
A new study reveals that thiol-modified biochar can maintain long-term mercury immobilization in contaminated soils even when subjected to repeated drying and rewetting. The research found that TMB strongly reduced mercury mobility, lowered bioavailable mercury, and redistributed mercury into less available forms.
A new study published in Biochar reports a promising approach to address food safety and climate challenges at the same time. A titanium dioxide-loaded biochar material reduces arsenic mobilization and methane emissions in flooded paddy soil, offering a two-in-one strategy for safer rice and lower greenhouse gas emissions.
A new review highlights the potential of biochar's intrinsic redox properties to enhance pollutant degradation, microbial processes, and energy recovery. Biochar can act like an electron shuttle or buffer, transferring electrons more efficiently than highly conductive materials in stressed environments.
A new study reveals that biochar can regulate antibiotic movement in structured soils, helping reduce contamination risks. By shifting transport into the slower soil matrix, biochar reduces pollutant export and increases retention.
A five-year field study reveals that biochar reshapes soil chemistry, microbes, viruses, and metabolites to support healthier agricultural ecosystems. Biochar improves soil organic matter, cation exchange capacity, and nutrient availability while reducing metal bioavailability.
A new global analysis suggests that biochar's ability to store carbon in agricultural soils may be overestimated due to increased carbon dioxide emissions from warming. The study found that warming significantly increased CO2 emissions from biochar-amended soils by an average of 77%, with effects strongest in croplands.
Researchers found that acid-modified and alkaline biochars helped reduce stress from saline-alkali soil, improving soil conditions and supporting alfalfa performance. Alkaline biochar promoted biomass growth, while acid-modified biochar improved soil chemistry and root defense in highly alkaline soils.
A new review highlights the potential of biochar-immobilized microbes (BIMs) to improve soil quality, increase crop yields, and remediate pollutants. BIMs have shown strong potential to support sustainable agriculture by enhancing nutrient cycling, root development, stress tolerance, and pathogen suppression.
A new study found that biochar can lower the temperature sensitivity of nitrous oxide emissions in agricultural soil but increase it in forest soil. Researchers tested different soils and biochar treatments and found that temperature was the dominant driver of nitrous oxide emissions, while biochar acted as a secondary modulator.
A three-year field study shows that pairing biochar with arbuscular mycorrhizal fungi can improve soil health, nutrient supply, microbial diversity, and maize productivity. The treatment also increased soil water content, porosity, organic carbon, available phosphorus, and enzyme activity.
Long-term biochar study reveals that topsoil benefits from biochar's effect on microbial necromass carbon, with significant increase in fungal necromass carbon. In contrast, subsoil shows reduced microbial necromass carbon due to lower nitrogen availability and increased microbial nutrient mining.
A new iron-modified biochar catalyst activates natural oxygen and iron cycling in farmland soil, breaking down sulfamethoxazole at a 4.2-fold increase under laboratory conditions. The material also achieved strong pollutant removal, with degradation reaching 81.2% under favorable soil moisture conditions.
A new study published in Biochar shows that the temperature used to produce biochar plays a decisive role in controlling nitrogen losses during food waste digestate composting. Hardwood biochar made at 400 °C reduced total nitrogen loss by 46.3% compared with composting without biochar, outperforming biochars made at 300 °C and 800 °C.
Researchers developed a magnetic silicon-enriched biochar gel that effectively immobilized arsenic and antimony in contaminated paddy soil, reducing their accumulation in rice grains. The material also improved root growth and plant productivity, supporting healthier plant resilience.
Biochar can restore acidic tea soils, reduce toxic metal uptake, and support climate-smart cultivation. It also improves fertilizer use efficiency, supports biochemical pathways linked to tea quality, and reduces heavy metal exposure risks for consumers.
Researchers found that higher soil salinity can slow biochar's aging process, preserving its carbon content and reducing microbial activity. This study provides new insights for sustainable management of saline farmland and highlights the importance of microorganisms in shaping biochar's environmental functions.
Researchers argue that biochar's long-term carbon storage potential and its soil improvement benefits should not be conflated. The authors call for a 'designer biochar' approach, tailoring products to specific end uses rather than marketing them as universally beneficial.
Researchers used game theory to identify promising porous carbon materials made from agricultural and industrial waste. The study found that certain samples, such as rice straw-KOH-level 2, performed well in terms of surface area and pore volume, making them suitable for applications in soil amendment, water conservation, and pollutant...
A new review highlights how biochar weathers over time, affecting its benefits and risks in soil health, carbon sequestration, and pollution control. Weathered biochar can improve nutrient retention and metal binding but also fragment and reduce long-term carbon storage potential.
Researchers found two distinct growth patterns in river deltas, uniform and composite, which can help engineers estimate land build-up based on channel length. This insight will aid coastal restoration and flood protection efforts by directing limited resources to areas where they can make the most impact.
Researchers develop heterocyclic-linked covalent organic frameworks (COFs) that utilize light to trigger specific redox reactions, reducing soluble uranium into insoluble forms. The materials have shown impressive photocatalytic uranium extraction efficiency and potential for environmental cleanup and nuclear fuel security.
A new study shows that minerals and microbes should not be treated as separate controls on dissolved organic matter. Iron oxides selectively sort organic molecules, changing what remains available for microbial degradation, with major consequences for biodegradation.
Researchers developed a new composite material that can capture uranium from water while converting part of it into a less toxic chemical form. The study found that the material achieved high uranium removal capacity and showed dual adsorption and reduction mechanism, making it a promising strategy for recovering uranium from seawater.
Researchers highlight engineered biochar as a promising material for capturing carbon dioxide, overcoming limitations of raw biochar through rational engineering. Heteroatom doping improves interactions with CO2 molecules, increasing adsorption efficiency.
FAU engineering researcher Masoud Jahandar Lashaki has been awarded a prestigious NSF CAREER award to study the oxidative degradation of amine-functionalized sorbents. The project aims to design longer-lasting technologies for capturing pollutants from air and water, improving indoor and outdoor air quality.
Emerging microwave-based techniques significantly enhance biochar's ability to remove contaminants from water and soil while improving energy efficiency. Biochar has gained attention as a sustainable solution for managing agricultural residues, food waste, and other organic by-products.
A cohort study found that bullying and restrictive legislation were associated with higher rates of psychotic-like experiences in gender-diverse youths. The study suggests that supportive environments and policies can help alleviate mental health concerns among this population.
Researchers have created a novel sorbent made from chitosan/cellulose acetate and bentonite composites that show promise for cleaning up oil spills. The beads are floatable, biodegradable, and environmentally compatible, making them an efficient and cost-effective solution.
Researchers have developed a technique to detect and measure the concentration of rare-earth elements in plants without destroying them. The method uses fluorescence spectroscopy to distinguish between autofluorescence from plant matter and rare-earth element uptake.
Researchers found that thiol-modified biochar reduces mercury mobility by up to 80% in soils exposed to dry-wet cycles. The material promotes natural weathering processes, traps mercury in stable forms, and alters the soil microbial community, creating a resilient ecosystem.
A new study reports a promising solution to address both arsenic contamination and greenhouse gas emissions in rice paddies using an engineered biochar material enhanced with titanium dioxide. The findings highlight a new strategy to improve food safety while lowering agriculture’s climate footprint.
Researchers found that biochar can actively regulate the movement of antibiotics in soil, reducing cumulative fluxes by up to 15%. Biochar creates a concentration gradient at the interface between macropores and surrounding soil, pulling contaminants into the soil matrix for retention.
A five-year field study reveals that biochar can reorganize entire soil ecosystems, creating lasting benefits for agriculture and environmental sustainability. Biochar triggers a coordinated transformation across the entire soil system, improving soil acidity and reducing metal toxicity.
Researchers highlight biochar's ability to outperform conventional materials in driving chemical reactions that break down pollutants and support energy-producing microbial processes. Biochar's intrinsic redox properties enable it to act as an electron shuttle, accelerating reactions.
Researchers found that biochar can either dampen or amplify temperature sensitivity of nitrous oxide emissions in soils. Biochar's effects depend on soil properties and environmental conditions.
A new field study reveals that biochar significantly increases microbial necromass carbon in topsoil by up to 39%, linked to improved nutrient availability and microbial efficiency. However, in subsoil layers, biochar reduces microbial necromass carbon by as much as 30% due to nutrient limitations.
A new study reveals that carefully designed biochar amendments can improve plant growth and soil health in saline-alkali soils by reshaping plant metabolism and microbial communities. Alkaline biochar was found to stimulate key metabolic pathways, while acid-modified biochar enhanced root development and activated plant defense systems.
A newly developed magnetic biochar material effectively reduces the uptake of arsenic and antimony in rice plants, stabilizing contaminants while supporting plant growth. The study also reveals improvements in plant health, including stronger root systems and reduced physiological stress.
A new study reveals how an advanced iron-modified biochar can harness the natural chemistry of soils to break down persistent antibiotic contaminants. The biochar activates naturally occurring oxygen in soils to generate highly reactive hydroxyl radicals, enabling the in situ degradation of contaminants without external chemical inputs.
Researchers discovered that carefully selecting the temperature used to produce biochar can optimize both environmental performance and compost quality. Biochar produced at a moderate temperature achieved the optimal balance between ammonium adsorption and microbial nitrification, resulting in a 46.3% reduction in total nitrogen loss.
Researchers found that increasing soil salinity slows biochar aging and limits microbial colonization. Biochar retains more carbon and shows greater structural stability in saline environments compared to low-salinity conditions.
A new scientific review highlights how biochar can transform tea farming by restoring soil health, reducing pollution risks, and improving both yield and quality. Biochar can increase tea yields by 10 to 40 percent while enhancing quality traits such as amino acids and polyphenols that influence flavor.
A five-year field study shows that small, repeated additions of biochar combined with water-saving irrigation can significantly reduce methane emissions from rice paddies over time while maintaining strong crop yields. Continuous application maintained and strengthened methane reduction, producing net negative emissions in some cases.
A new study highlights the critical misunderstanding of biochar's role in fighting climate change and improving soils, warning that oversimplified claims could undermine scientific progress and carbon markets. Biochar is not a one-size-fits-all solution, and its effectiveness depends on where it is used.
A field study found that adding biochar to estuarine wetlands increased sediment carbon storage while suppressing carbon loss. Tidal dynamics amplified the effectiveness of biochar as a climate solution by stabilizing carbon in sediments and reducing microbial activity associated with carbon decomposition.