{"title":"Assessing cost-effectiveness of dissuasion techniques targeting waterbirds in rice fields","authors":"João Paulino, José Pedro Granadeiro, Teresa Catry","doi":"10.1016/j.jenvman.2024.123369","DOIUrl":"10.1016/j.jenvman.2024.123369","url":null,"abstract":"<div><div>In a scenario of global wetland loss, rice fields are becoming vital habitats for waterbirds, often offering abundant and predictable food resources. However, the increasing presence of waterbirds in rice fields is exacerbating human-wildlife conflicts, as birds are seen as pests by farmers due to the damage they perceive the birds inflict to the crops. To tackle this situation, farmers use dissuasion methods like propane gas cannons, but its effectiveness in reducing damage is often not quantified. In this study we evaluate the cost-effectiveness of propane gas cannons in deterring waterbirds from rice fields and test if there is a correlation between bird abundance in a given field during rice growth and rice yield in the same field. Waterbird counts were conducted before and after dissuasion actions targeting Glossy ibis and White stork in a major rice production area in Portugal. To assess the potential magnitude of damage reduction gained through dissuasion, we estimated the time elapsed between dissuasion events and the reestablishment of bird numbers in the disturbed fields. The economic cost of dissuasion was compared with the estimated gains from reduced damage. Results showed that on average, waterbird numbers recovered ca. 30 min after dissuasion, leading to an estimated 0.78% reduction in crop damage. The final yield of rice production was modelled considering all gains and costs involved in dissuasion actions in relation to an increase in dissuasion efforts for 11 scenarios of potential waterbird damage (0–20%). For dissuasion to be cost-effective, waterbirds would need to destroy at least 17% of the crops, far more than any damage previously recorded in Europe. Also, we found that the abundance of waterbirds in a rice field does not affect rice yield. We suggest that efforts to reduce damage should shift to more cost-effective and environmentally friendly methods, such as diversionary fields or economic compensations to farmers. This can enhance the economies of rice-dependent countries and reduce conflicts, ultimately reconciling rice agriculture with biodiversity conservation.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"372 ","pages":"Article 123369"},"PeriodicalIF":8.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hui Wang , Xianghua Wang , Yaou Yang , Wen Dong , Yue Ma , Jiake Li , Haiyu Meng , Zhe Wang , Dongqi Wang , Chunbo Jiang , Yajiao Li
{"title":"Constructed wetlands using recycled aggregates for the improved treatment of tailwater","authors":"Hui Wang , Xianghua Wang , Yaou Yang , Wen Dong , Yue Ma , Jiake Li , Haiyu Meng , Zhe Wang , Dongqi Wang , Chunbo Jiang , Yajiao Li","doi":"10.1016/j.jenvman.2024.123328","DOIUrl":"10.1016/j.jenvman.2024.123328","url":null,"abstract":"<div><div>Recycled aggregates from the construction industry could be effective materials for constructed wetland (CW) wastewater treatment systems. However, whether the plants or which kinds of plants can survive in CWs with recycled aggregates or not is still scarce and urgent to study. The effects of different plant species, and several operation parameters on tailwater treatment from the sewage plants by CWs with different substrates (mixed construction recycled aggregate [MCRA], red brick [RB], and gravel) are systemically studied. The results showed that the average removal efficiencies of the chemical parameters in MCRA-CWs with seven plants, such as <em>Cyperus alternifolius</em>, were higher than those of RB-CWs and Gravel-CWs. In the MCRA-CWs, the average removal efficiencies of <em>Typha orientalis</em>, <em>Cyperus alternifolius</em>, and <em>Phragmites australis</em> were 77.58%, 75.09%, and 73.16%, respectively, which were higher than those of the other plants. Meanwhile, <em>Proteobacteria</em> had the highest relative abundances in MCRA and RB at 54.98% and 69.22%, respectively, whereas <em>Cyanobacteria</em> (35.21%) were the most abundant in the gravel. The influence of season on water purification was significant (<em>p</em> < 0.05) in the MCRA. Overall, water quality purification was dependent on season, HRT, and C/N, which accounted for 86.1%, 13%, and 7.1%, respectively. The highest average removal efficiencies of the MCRA-CWs were 71.98% (COD), 85.58% (NH<sub>4</sub><sup>+</sup>-N), 95.01% (TN), and 84.11% (TP) when the HRT was 3 d and C/N ratio was 2.5 in the summer. This indicates that treated recycled construction aggregates could be used as substrates in CWs and have both wastewater purification and environmental improvement effects, thus achieving the purpose of “treating the wastes with wastes”.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"372 ","pages":"Article 123328"},"PeriodicalIF":8.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142643664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lei Liu , Guangfeng Ou , Lei Xu , Naoki Ogiwara , Sayaka Uchida , Huaming Yang , Yuya Sakai
{"title":"Simultaneous productions of high-purity calcium carbonate and amorphous nanosized silica-rich gel from waste concrete powder by alkaline treatment and carbonation","authors":"Lei Liu , Guangfeng Ou , Lei Xu , Naoki Ogiwara , Sayaka Uchida , Huaming Yang , Yuya Sakai","doi":"10.1016/j.jenvman.2024.123319","DOIUrl":"10.1016/j.jenvman.2024.123319","url":null,"abstract":"<div><div>Simultaneous productions of high-purity CaCO<sub>3</sub> (calcium carbonate) and amorphous nanosized SiO<sub>2</sub>-rich (silica-rich) gel from waste concrete powder remain quite challenging, and thus the high-value added utilization of waste concrete powder is significantly limited. A novel technology involving a combination of alkaline treatment and carbonation, has been proposed for the greatly enhanced utilization of waste concrete powder. Through alkaline treatment, CaCO<sub>3</sub> and SiO<sub>2</sub>-rich gel formed during carbonation of concrete powder were transformed into Ca(OH)<sub>2</sub> (calcium hydroxide) and Na<sub>2</sub>SiO<sub>3</sub> (sodium metasilicate), respectively. Subsequently, Ca(OH)<sub>2</sub> and Na<sub>2</sub>SiO<sub>3</sub> were separated. As a result, CaCO<sub>3</sub> with a high purity of 98.54% and amorphous nanosized SiO<sub>2</sub>-rich gel were obtained via carbonation, and the recovery ratio of CaCO<sub>3</sub> was 81.46%. Furthermore, the concrete powder exhibited a high CO<sub>2</sub> (carbon dioxide) uptake efficiency of 0.24g CO<sub>2</sub>/g. 30.31 Mt CaCO<sub>3</sub> and 2.77 Mt SiO<sub>2</sub>-rich gel productions as well as 38.54 Mt CO<sub>2</sub> emission reduction could be realized via recycling a quarter of annually generated waste concrete powder worldwide.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"372 ","pages":"Article 123319"},"PeriodicalIF":8.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xueying Cao , Xinyue Hu , Efrizal Efrizal , IsIah Hayati , Jia Yang , Changyin Tan , Manyun Zhang
{"title":"Tradeoffs among yield, cadmium bioavailability, nitrous oxide emission and bacterial community stability: Effects of iron-modified woody peat and nitrification inhibitors on soil-vegetable systems","authors":"Xueying Cao , Xinyue Hu , Efrizal Efrizal , IsIah Hayati , Jia Yang , Changyin Tan , Manyun Zhang","doi":"10.1016/j.jenvman.2024.123379","DOIUrl":"10.1016/j.jenvman.2024.123379","url":null,"abstract":"<div><div>Cadmium (Cd) pollution leads to soil degradation, decreases crop yield and affects human health through the food chain. Iron-modified woody peat (IMP) is an organic passivation material that significantly affects the migration of heavy metals in soil. Nitrification inhibitors are widely used to reduce greenhouse gas emissions. This study investigated the effects of the IMP and nitrification inhibitors dicyandiamide (DCD) and 3, 4-dimethylpyrazole phosphate on Cd content and form, crop yield, nitrous oxide (N<sub>2</sub>O) emission and bacterial communities in soil-lettuce systems. The simultaneous additions of IMP and DCD substantially reduced the soil available Cd content by 22.6 % and significantly promoted the lettuce yield by 42.9 %. Lettuce yield was significantly and negatively correlated with soil available Cd (correlation coefficient = −0.52). The simultaneous applications of IMP and nitrification inhibitors stimulated N<sub>2</sub>O emission risk by enhancing the soil NH<sub>4</sub><sup>+</sup>-N contents and the relative abundances of <em>Firmicutes</em>, which could also decrease soil bacterial community stabilities. Therefore, tradeoffs among yield, Cd bioavailability, N<sub>2</sub>O emission and bacterial community stability should be comprehensively considered when evaluating the combined performances of IMP and nitrification inhibitors.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"372 ","pages":"Article 123379"},"PeriodicalIF":8.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unlocking the potential of urban EV battery recycling: A dual optimization model","authors":"Zhonglin Ma , Cheng Zhao , Soomin Woo , Chao Wang","doi":"10.1016/j.jenvman.2024.123301","DOIUrl":"10.1016/j.jenvman.2024.123301","url":null,"abstract":"<div><div>As electric vehicles increase, they reduce greenhouse gas emissions but pose recycling challenges for their batteries. Economic and environmental impacts are significant concerns. This study proposes a dual optimization approach to develop a city-wide recycling network benefiting vehicle owners and recycling facilities. Focusing on Xi'an City, China, we project future battery recycling volumes and analyze optimal network setups at various stages. In reverse logistics and network design research, decentralized battery processing centers and centralized energy storage centers can greatly improve consumer benefits and ensure formal recycling practices. In research on consumer engagement and behavior, it's important to design recycling subsidies wisely and enhance consumer motivation to participate in formal recycling. As the number of retired vehicle batteries grows, the government should consider shifting subsidies from consumers to centralized recycling centers to maintain a sustainable and efficient recycling system.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"372 ","pages":"Article 123301"},"PeriodicalIF":8.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bolun Luo , Jie Zhou , Wei Yao , Yuxian Wang , Thomas Guillaume , Ming Yuan , Dongwei Han , Nataliya Bilyera , Lianxia Wang , Lei Zhao , Yadong Yang , Zhaohai Zeng , Huadong Zang
{"title":"Maize and soybean rotation benefits soil quality and organic carbon stock","authors":"Bolun Luo , Jie Zhou , Wei Yao , Yuxian Wang , Thomas Guillaume , Ming Yuan , Dongwei Han , Nataliya Bilyera , Lianxia Wang , Lei Zhao , Yadong Yang , Zhaohai Zeng , Huadong Zang","doi":"10.1016/j.jenvman.2024.123352","DOIUrl":"10.1016/j.jenvman.2024.123352","url":null,"abstract":"<div><div>Soybean and maize rotation has been recommended as a promising strategy to maximize crop yield. However, the impacts of soybean-maize rotation, and particularly the frequency of soybean inclusion, on soil quality and carbon (C) stock need to explored. We conducted an 8-year field experiment of randomized design in Northeast China with four cropping systems as continuous soybean (S), continuous maize (M), soybean-maize rotation (SM), and soybean-maize-maize rotation (SMM). The results showed that the soil quality index, soil ecosystem multifunctionality (EMF), and C stock under crop rotation (SM and SMM) were 5.4–23.5%, 13.1–22.6%, and 9.3–29.4% higher than those under continuous cropping (M and S), respectively. Additionally, the increased frequency of soybean in the rotation increased soil EMF by 14.8% due to higher soil enzyme activities and available N. Notably, the soybean-maize rotation alleviated microbial nitrogen (N) limitation compared to continuous cropping, due to stimulated C, N, and P acquisition by enzyme activities. Furthermore, the soil quality index correlated positively with C stock in the topsoil. The accumulation rates of soil organic C and total N were higher by 0.39 and 0.14 g kg<sup>−1</sup> year<sup>−1</sup> in SMM than in SM, respectively. Therefore, scientifically based soybean frequency is an effective approach to enhance soil organic C in soybean and maize rotation. In conclusion, soybean-maize rotation improves soil quality compared to monoculture, and a reduced frequency of soybean within the rotation (SMM) is beneficial for C and N storage.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"372 ","pages":"Article 123352"},"PeriodicalIF":8.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142643668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Linn Berglund , Luisa Rosenstock Völtz , Timon Gehrmann , Io Antonopoulou , Carmen Cristescu , Shaojun Xiong , Pooja Dixit , Carlos Martín , Ola Sundman , Kristiina Oksman
{"title":"The use of spent mushroom substrate as biologically pretreated wood and its fibrillation","authors":"Linn Berglund , Luisa Rosenstock Völtz , Timon Gehrmann , Io Antonopoulou , Carmen Cristescu , Shaojun Xiong , Pooja Dixit , Carlos Martín , Ola Sundman , Kristiina Oksman","doi":"10.1016/j.jenvman.2024.123338","DOIUrl":"10.1016/j.jenvman.2024.123338","url":null,"abstract":"<div><div>Utilization of biomass and reuse of industrial by-products and their sustainable and resource-efficient development into products that are inherently non-toxic is important to reduce the use of hazardous substances in the design, manufacture and application of biomaterials. The hypothesis in this study is that spent mushroom substrate (SMS), a by-product from mushroom production, has already undergone a biological pretreatment and thus, can be used directly as a starting material for fibrillation into value-added and functional biomaterial, without the use of toxic substances. The study show that SMS can be effectively fibrillated at a very high concentration of 6.5 wt % into fibrils using an energy demand of only 1.7 kWh kg<sup>−1</sup>, compared to commercial and chemically pretreated wood pulp at 8 kWh kg<sup>−1</sup>, under same processing conditions. SMS is a promising resource for fibrillation with natural antioxidant activity and network formation ability, which are of interest to explore further in applications such as packaging. The study shows that biological pretreatment can offer lower environmental impact related to toxic substances emitted to the environment and thus contribute to reduced impacts on categories such as water organisms, human health, terrestrial organisms, and terrestrial plants compared to chemical pretreatments.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"372 ","pages":"Article 123338"},"PeriodicalIF":8.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142643626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xusheng Zheng , Jingjing Tong , Shufang Zhou , Yanping Liu , Guangqing Liu , Dexun Zou
{"title":"Remediation of hexavalent chromium contaminated soils by stimulating indigenous microorganisms: Optimization, community succession and applicability","authors":"Xusheng Zheng , Jingjing Tong , Shufang Zhou , Yanping Liu , Guangqing Liu , Dexun Zou","doi":"10.1016/j.jenvman.2024.123222","DOIUrl":"10.1016/j.jenvman.2024.123222","url":null,"abstract":"<div><div>Microbial remediation has become an environmental-friendly and promising remediation method for Hexavalent chromium [Cr(VI)] contaminated soils. However, it is hard for exogenous microorganisms to adapt to different contaminated soils. In this study, Cr(VI) contaminated soils were remediated by the indigenous iron reducing bacteria and Cr(VI) reducing bacteria under the stimulation of sodium lactate, ferrihydrite and humic acid. The Cr(VI) removal rates of contaminated soils with the Cr(VI) concentration of 2234.92 mg/kg reached 71.61% on the 24th day with a sodium lactate dosage of 5.80%, a ferrihydrite dosage of 2.00% and a humic acid dosage of 0.93% that obtained after the optimization of Box-Benhnken design. The total abundance of iron reducing bacteria and Cr(VI) reducing bacteria increased from 9.78% to 64.64% after the remediation. <em>Bacillus</em>, <em>Salipaludibacillus</em>, <em>Gracilibacillus</em>, <em>Virgibacillus</em> and <em>Delftia</em> played a critical role in the remediation. Adding the above three exogenous substances to Cr(VI) contaminated soils in other three regions still had an excellent remediation effect. When the initial Cr(VI) concentrations were no more than 1000 mg/kg, they could decrease to below 60.53 mg/kg after the remediation of 24 days. The Cr(VI) removal rate could still reach 89.49% even if the initial concentration exceeded 2000 mg/kg. Our results provide an attractive strategy to utilize indigenous microorganisms to remediate Cr(VI) contaminated soils.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"372 ","pages":"Article 123222"},"PeriodicalIF":8.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142643700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shuai Wang , Xiaodong Du , Ruisi Yin , Haihang Sun , Bowen Song , Qi Han , Jingjing Wang , Yubao Huang
{"title":"Performance of co-composting Pholiota nameko spent mushroom substrate and pig manure at different proportions: Chemical properties and humification process","authors":"Shuai Wang , Xiaodong Du , Ruisi Yin , Haihang Sun , Bowen Song , Qi Han , Jingjing Wang , Yubao Huang","doi":"10.1016/j.jenvman.2024.123325","DOIUrl":"10.1016/j.jenvman.2024.123325","url":null,"abstract":"<div><div>Co-composting is the controlled aerobic degradation of organics, using more than one feedstock. By combining the spent mushroom substrate of <em>Pholiota nameko</em> (SMS) and pig manure (PM), the benefits of each could be used to optimize the composting process and the final product. This study introduced a comprehensive evaluation strategy aimed at identifying the optimal co-composting ratio for these two substrates. A 120-day composting trial was conducted, blending SMS and PM in various ratios to evaluate the benefits of co-composting SMS-PM. The results indicated that dissolved organic matter (DOM) in SMS-derived compost primarily originated from plants, whereas PM-derived compost predominantly consisted of microbial metabolic products, and co-composting combined both sources. An increase in aromaticity and humification degree of DOM occurred during the composting process itself rather than being derived from autochthonous origin. Carbohydrates like phenols and alcohols broke down during composting, and microbes utilized polysaccharides as an energy source for humus formation. As co-composting progressed, the treatments with varying mass ratios of SMS to PM, including 8:2, 7:3, 6:4, 5:5, 4:6, and 3:7 were observed to result in a decline in aliphatic hydroxylated chains alongside an enhancement in aromaticity within the compost. Additionally, there was a conversion from organic carbon (C) to carboxyl C within humic acid (HA) due to oxidation and dehydrogenation processes that facilitated the formation of stable nitrogen-containing compounds characterized by condensed aromatic structures. Following thorough evaluation, it was determined that optimal composting efficacy occurred at a mass ratio of SMS to PM equal to 6:4. Post-compost analysis revealed increases in nutrient content; specifically, germination index (GI) value reached 132.7%, while organic matter content attained 45.3%. Conversely, electrical conductivity (EC), C contents of water-soluble substances and humin (Cwss and C<sub>Hu</sub>) decreased by approximately 11.8%, 73.4%, and 29.8% respectively; meanwhile, C contents of humic-extracted acid and HA (C<sub>HE</sub> and C<sub>HA</sub>), along with degree of polymerization (DP), increased by 17.3%, 20.3% and 9.9% respectively. The proposed co-compost formula not only facilitated simultaneous recycling of both SMS and PM waste but also transformed them into high-quality organic fertilizers suitable for soil enrichment—effectively addressing challenges faced by both edible fungi cultivation and livestock industries while augmenting organic fertilizer sources for Black land protection.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"372 ","pages":"Article 123325"},"PeriodicalIF":8.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142643672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lignin extraction from lignocellulosic biomass and its valorization to therapeutic phenolic compounds","authors":"Harmeet Kaur , Dinesh Goyal","doi":"10.1016/j.jenvman.2024.123334","DOIUrl":"10.1016/j.jenvman.2024.123334","url":null,"abstract":"<div><div>Lignocellulosic biomass is a sustainable alternative to finite petroleum resources, with lignin emerging as a major component of biomass for producing circular economy products. Maximizing extraction and valorization of lignin to platform chemicals, biofuels, and bioactive compounds is crucial. Unlocking lignin's full potential lies in exploring the therapeutic properties of lignin-derived phenolics, which can definitely boost the economic viability of integrated biorefineries. This review provides a broad vision of lignin valorization stages, covering various techniques of its extraction from lignocellulosic biomass with high yield and purity and its further depolymerization to phenolics. Therapeutic potential of lignin-derived phenols as antioxidants, antimicrobials, anti-inflammatory, and anticancer agents is comprehensively discussed. Lignin, with high phenolic hydroxyl content up to 97% purity, can be extracted using deep eutectic solvents (DES) and organosolv processes. Oxidative and reductive catalytic depolymerization methods efficiently break down lignin into valuable phenolic compounds like alkyl phenolics and vanillin, even at mild temperatures, making them a preferred choice for lignin valorization. Potential of lignin derived phenolics as versatile bioactive compounds with health promoting benefits is highlighted. Phenolics such as vanillin, ferulic acid, and syringic acid have demonstrated the ability to modulate cellular pathways involved in the pathogenesis of diseases like cancer and diabetes. The interplay between high purity lignin extraction and therapeutic potential of lignin-derived phenolics unveils a new frontier in sustainable healthcare solutions.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"372 ","pages":"Article 123334"},"PeriodicalIF":8.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}