Article
Environmental Sciences
Zhuowen Meng, Shuang Huang, Zhongbing Lin
Summary: By modifying rice straw biochar with KMnO4, its adsorption capacity was significantly improved, especially during co-aging with soil. Modified biochar always had higher adsorption capacity than unmodified biochar after aging processes, and its dominant adsorption mechanism was precipitation and adsorption with minerals.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Jia Li, Xuehai Chen, Songguo Yu, Min Cui
Summary: Adsorption is an efficient and eco-friendly technique for removing small pristine microplastics from water. However, it is unclear whether this technique is effective in removing large aged microplastics from water.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biotechnology & Applied Microbiology
Xinyue Li, Tianyi Wang, Yilin Li, Tonglinxi Liu, Xiulan Ma, Xing Han, Yujun Wang
Summary: The effects of aging on the adsorption capacity of Pb and Cd by maize stover biochar were studied. Aging decreased the pH, ash, and aromaticity of the biochar, while increasing its polarity, oxygenated functional groups, specific surface area, and average pore size. The sorption behavior of Pb2+ and Cd2+ could be explained by quasi-second-order kinetics and the Langmuir equation. The maximum adsorption of Pb2+ and Cd2+ was higher in a single metal system compared to a binary metal system, indicating a competitive relationship. The mechanisms for removing Pb2+ and Cd2+ by aged biochar included pore filling, electrostatic adsorption, ion exchange, mineral precipitation, pi-pi interaction, and surface complexation.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Environmental Sciences
Xiaoqiang Cui, Jiangtao Wang, Xutong Wang, Guiyue Du, Kiran Yasmin Khan, Beibei Yan, Zhanjun Cheng, Guanyi Chen
Summary: This study investigated the pyrolysis of exhausted hydrochar sorbent and found that the vaporization of adsorbed Cd in hydrochar can be greatly enhanced by elevating pyrolysis temperature. The regenerated biochar showed higher Cd sorption capacity compared to the raw hydrochar, and the toxicity and mobility of Cd were greatly reduced after pyrolysis.
Article
Environmental Sciences
Yuxin Ke, Song Cui, Qiang Fu, Rupert Hough, Zulin Zhang, Yi-Fan Li
Summary: This study investigated the effects of pyrolysis temperature and aging treatment on the adsorption performance of coffee grounds biochar (CGB) for Cd2+ and Zn2+. The results showed that the adsorption performance of fresh CGB increased with increasing pyrolysis temperature, while the adsorption performance of aged CGB peaked at medium pyrolysis temperature and decreased at higher temperatures. The XRD results indicated that the graphitization degree of CGB increased with pyrolysis temperature, leading to improved environmental stability. EDS and FTIR results suggested that ion-exchange and complexation played a dominant role in the adsorption processes, and the aging treatment improved the selectivity for Cd2+.
Article
Environmental Sciences
Xinyuan Zhang, Zixiang Gao, Xiaoping Fan, Li Tan, Yishun Jiang, Wanning Zheng, Fengxiang X. Han, Yongchao Liang
Summary: Hydrochars and biochars prepared from rice husk and Zizania latifolia straw were used as absorbents to remove toxic ions from Cd and/or Pb solutions. Biochars showed better adsorption capacities for Cd and Pb in single and competitive solutions compared to hydrochars. Zizania latifolia straw biochar had the highest adsorption capacity. The adsorption mechanisms involved monolayer adsorption, precipitation, complexation, and coordination with pi electrons.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Yiteng Zhang, Jun Hu, Xingxing Cheng, Mudassir Hussain Tahir
Summary: The objective of this study is to explore the energy recovery potential of fermentation residues. The pyrolysis characteristics, kinetics, and modified biochar derived from pine sawdust after fermentation (FPD) were determined and compared with pine sawdust (PD). FPD showed higher comprehensive pyrolysis index (CPI) values and activation energy than PD, and the fermentation enhanced the adsorption capacity of biochar.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Irina Jevrosimov, Marijana Kragulj Isakovski, Tamara Apostolovic, Snezana Maletic, Slavica Razic, Marija Mihajlovic, Jelena Trickovic
Summary: This research investigated the adsorption mechanism of alachlor and pentachlorobenzene on chars derived from Miscanthus giganteus and sugar beet shreds. Both hydrochars and biochars were studied, showing that biochars had a higher specific surface area (SSA) which influenced the adsorption mechanism. Different temperature treatments led to varied trends in SSA and pore volume for chars derived from different feedstocks.
Article
Engineering, Environmental
Binliang Wang, Junli Zheng, Yingying Li, Adel Zaidi, Yiwei Hu, Baowei Hu
Summary: The utilization of filamentous green algae biochar for uranium (U(VI)) removal is a sustainable and efficient method, with 8-MnO2 modification biochar showing higher adsorption capacity and stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Kim Anh Phan, Doungkamol Phihusut, Nattapong Tuntiwiwattanapun
Summary: This study developed rice husk hydrochar as an alternative adsorbent for atrazine removal and found that hydrochar prepared at higher temperatures, lower liquid to solid ratios, and longer residence times had higher atrazine adsorption capacities. The activated hydrochar showed the highest adsorption capacity, even greater than biochar with higher surface areas. Oxygen functional groups in the activated hydrochar played a dominant role in atrazine adsorption via hydrogen-bonding interaction.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Analytical
Sen Lang, Shouyu Zhang, Zhongyao Cao, Jifan Yang, Yi Zhou, Simeng Liu, Jiaqing Xu, Chuke Yang
Summary: This paper investigates the effect of hydrothermal pretreatment on cotton stalk and its resulting biofuel pellets. The results show that hydrothermal pretreatment significantly improves the quality of the biomass, increasing carbon content and energy density while decreasing oxygen content. The process promotes the decomposition and aromatization of the main components, and crystalline cellulose plays a crucial role in the mechanical properties of the pellets. However, the combustion characteristics of the hydrochar are negatively affected by the decreasing cellulose content. Hydrothermal pretreatment also significantly increases the higher heating value (HHV) of the hydrochar, while the HHV of the biochar shows a slowly downward trend with increasing hydrothermal temperature.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Energy & Fuels
Muhajir Mussa Kwikima, Yonas Chebude, Beteley Tekola Meshesha
Summary: The adsorption mechanisms of Cd2+ removal from synthetic water using blended biochar from bamboo sawdust and rice husk were investigated. It was found that the removal efficiency was not significantly different across different biochar ratio combinations, and physisorption was the dominant process controlling Cd2+ removal.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Engineering, Environmental
Jie Qu, Naiju Che, Guoliang Niu, Longfei Liu, Chengliang Li, Yanli Liu
Summary: Biochars prepared from cotton straw, corn straw, and rice husk were modified with ball-milling and iron/manganese oxides to prepare Fe/Mn binary metal oxide-ball milled biochar (Fe/Mn-BMBCs). Fe/Mn-BMBCs had a rough surface with deposits of Fe/Mn oxide nanoparticles, larger specific surface areas, and more oxygen-containing functional groups compared to pristine biochars. The adsorption capacities of Cd2+ on Fe/Mn-BMBCs were 4.8-6.1 times higher than those of pristine biochars. The main mechanisms of Cd2+ adsorption on Fe/Mn-BMBCs were complexation with oxygen-bearing functional groups, ion exchange, Cd2+-pi interaction, and chemical precipitation.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Xianyue Li, Rongchen Wang, Chenyang Shao, Dapeng Li, Shunwen Bai, Ning Hou, Xinyue Zhao
Summary: The addition of biochar and hydrochar to the soil has the potential to improve soil performance, with biochar prepared at 500 and 700 degrees C and hydrochar prepared at 250 degrees C for 4, 6, and 8 hours showing better physicochemical properties. Furthermore, the addition of biochar and hydrochar can promote soil carbon and nitrogen cycles, with SM250-4 having a positive effect on carbon neutralization.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Environmental Sciences
Huabin Wang, Yi Wu, Yi Wen, Dingxiang Chen, Jiang Pu, Yu Ding, Sailian Kong, Shuaibing Wang, Rui Xu
Summary: Copper slag modified hydrochar (CSHC) was designed as a functional material for efficient removal of cationic and anionic dyes in wastewater. The CSHC exhibited high adsorption capacities and good magnetic properties, allowing for easy separation. The study provides a new approach for the combined removal of cationic and anionic pollutants using industrial by-products derived from environmental remediation materials.
Article
Chemistry, Multidisciplinary
Zhenyu Wang, Tong Wang, Chuanxi Wang, Le Yue, Jing Li, Tianxi Liu, Yan Lv, Jason C. White, Xuesong Cao, Baoshan Xing
Summary: Loss of crop yield to pathogen damage seriously threatens efforts to achieve global food security. In this study, La-based nanomaterials with different morphologies and compositions were investigated for their control of bacterial pathogen Ralstonia solanacearum on tomato. Foliar application of LaPO4 nanorods significantly suppressed pathogen infection, and the disease control efficacy of different La-based nanomaterials varied. Mechanistically, LaPO4 nanorods supplied low levels of La ions to activate calmodulin and enhance phenylalanine ammonia lyase activity and pathogenesis-related gene expression. Additionally, La-based nanomaterials increased flavonoid and polyphenol content and antioxidative enzyme activity, reducing oxidative stress in tomato shoots. The higher disease control ability of LaPO4 nanorods was attributed to its bioavailability, slow-release ability, and P nutrient supplement. These findings highlight the importance of tuning nanomaterial morphology and composition for optimal sustainability and efficacy.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Environmental Sciences
Chuanxin Ma, Lanfang Han, Heping Shang, Yi Hao, Xinxin Xu, Jason C. White, Zhenyu Wang, Baoshan Xing
Summary: Engineered nanomaterials (NMs) have shown positive effects in defending against biotic and abiotic stresses in agriculture. Compared to conventional forms, NMs can more effectively trigger defense systems and strengthen plant immunity and growth. They can also reduce chemical use and remediate pollutants in soil. Nano-enabled strategies are likely to become a critical tool for improving crop resilience to climate change-induced stresses, and further research is encouraged.
CURRENT OPINION IN ENVIRONMENTAL SCIENCE & HEALTH
(2023)
Article
Chemistry, Multidisciplinary
Xing Luo, Zhenyu Wang, Chuanxi Wang, Le Yue, Mengna Tao, Wade H. Elmer, Jason C. White, Xuesong Cao, Baoshan Xing
Summary: This study found that lanthanum oxide nanomaterials with different sizes and surface modifications have significant control effects on cucumber wilt caused by the fungal pathogen Fusarium oxysporum. The best pathogen control was achieved by foliar application of 10 nm PVP-coated La2O3 NMs, which decreased disease severity by 67.6% and increased fresh shoot biomass by 49.9%. Additionally, the application of La2O3 NMs improved cucumber yield, amino acid content, and vitamin content.
Article
Environmental Sciences
Fei Dang, Chengcheng Li, Luis M. Nunes, Ronggui Tang, Junsong Wang, Shuofei Dong, Willie J. G. M. Peijnenburg, Wenxiong Wang, Baoshan Xing, Su Shiung Lam, Christian Sonne
Summary: Food security and sustainable agriculture are challenges that have been faced for a long time. The use of nanotechnology in agriculture can increase productivity and food security, but it also has negative environmental impacts, such as pollution of the human food chain.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Engineering, Environmental
Fei Lian, Yaru Han, Yikang Zhang, Jiaqi Li, BinBin Sun, Zexuan Geng, Zhenyu Wang, Baoshan Xing
Summary: The colloidal stability of nanoplastics in aqueous solutions is influenced by photoaging and dissolved organic matter (DOM). The exposure order to sunlight and DOM plays a role in modifying the environmental behavior of nanoplastics. The study investigates the impact of molecular-weight-fractionated humic acids (HAs) on the aggregation of poly(ethylene terephthalate) nanoplastics (PET-NPs) under different exposure orders. The results highlight the active nature of HA-PET assemblies and provide new insights into the reaction of HA with nanoplastics beyond adsorption in the natural environment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Fei Wang, Yuxin Liu, Manman Cao, Beihai Zhou, Huilun Chen, Rongfang Yuan, Shuhu Liu, Baoshan Xing
Summary: This study investigated the transformation mechanisms of three biogenic organic phosphorus compounds by zinc oxide nanoparticles under ultraviolet light illumination. The results showed that zinc oxide nanoparticles accelerated the conversion of these phosphorus compounds to inorganic phosphorus and increased the production of hydroxyl and superoxide radicals.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Zhendong Zhao, Mingzhu Hu, Tiantian Nie, Wenjun Zhou, Bingcai Pan, Baoshan Xing, Lizhong Zhu
Summary: Dual-atom catalysts (DACs) show great potential in various catalytic reactions, but the origin of their high activity and the mechanism behind the enhancement are still not well understood. In this study, FeCo-N/C dual-atom catalyst was compared with its single-atom counterparts in activating peroxymonosulfate (PMS) for pollutant abatement. It was found that the spin-state reconstruction on FeCo-N/C effectively improves the electronic structure of Fe and Co, leading to enhanced PMS activation efficiency and a remarkable boost in the Fenton-like reaction. The study provides a mechanistic understanding of the enhanced catalytic activity of DACs and expands their potential applications.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Xinxin Xu, Anqi Liang, Hao Li, Heping Shang, Kun Qian, Weili Jia, Jason C. C. White, Chuanxin Ma, Baoshan Xing
Summary: Zinc oxide quantum dots enhance pumpkin growth by modulating endophytic and rhizosphere microbial communities. This study demonstrates that the direct improvement of plant physiological performance and the modulation of beneficial microorganisms contribute to the enhanced plant growth. Nano-enabled strategies have great potential for increasing crop growth and stress resistance.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Qingnan Chu, Zhimin Sha, Detian Li, Yanfang Feng, Lihong Xue, Dongmei Zhou, Baoshan Xing
Summary: Oxygen nanobubble-loaded biochars have been found effective in reducing copper toxicity in paddy soils and improving crop productivity. This amendment improves the redox potential and dissolved oxygen concentration in the rhizosphere, promotes root iron plaque formation, and inhibits copper influx. It also enhances soil microbial diversity and increases bacterial genes abundance involved in copper complexation and export. The sequestered copper in root iron plaque and soil bacteria prevents its accumulation in edible parts of the plants.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Runze Xue, Ruyi Lan, Wenli Su, Zhenyu Wang, Xinyu Li, Jian Zhao, Chuanxin Ma, Baoshan Xing
Summary: Laser scanning confocal microscopy (LSCM) observations showed that polystyrene (PS) nanoplastics (25 nm) can be transferred to Daphnia magna's eggs and embryos through the brood chamber and ovary. In vivo and in vitro experiments confirmed the two pathways for maternal transfer: pathway I through the brood chamber and pathway II through the gut-ovary-oocyte transfer. The contribution from pathway I was much higher (88%) than pathway II (12%).
Article
Environmental Sciences
Wanjun Gao, Yongzhi Zhang, Mengling Lin, Junlin Mao, Baoshan Xing, Yeyun Li, Ruyan Hou
Summary: In this study, the degradation behavior of glyphosate in Vulpia myuros cultivated in a hydroponic system was investigated. The results showed that V. myuros could absorb glyphosate, and the concentration of glyphosate in the plant decreased over time. The degradation dynamics of glyphosate fitted a first-order kinetic model, with a half-life of 5.08 days. The content of the glyphosate metabolite did not change significantly over time. These findings suggest that V. myuros has the potential to be used as a remediation plant for environmental restoration.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Engineering, Environmental
Lei Lei, Siyu Zhang, Xuejiao Zhang, Bin Qin, Shuo Deng, Qing Zhao, Baoshan Xing
Summary: This study revealed that human serum albumin (HSA) can exfoliate layered black phosphorus (LBP) after the formation of protein coronas. The sorption of HSA on LBP exhibits multiple intermediate equilibrium and size-dependent capacity. The exfoliation mechanism is mainly driven by HSA concentration and interactions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yan Li, Jun Hou, Lingzhan Miao, Jun Wu, Baoshan Xing
Summary: This study investigated the impact of natural organic matter (NOM) on the degradation of chloramphenicol (CAP) by sulfidated ferrihydrite under dynamic redox conditions. The results showed that NOM played a promoting or inhibiting role in CAP reduction, depending on the concentration of reductive dissolved sulfide. When the conditions transitioned from anoxic to oxic, CAP molecules underwent oxidative degradation to form various intermediate products. Two oxidative degradation pathways of CAP during the oxidation of sulfidated ferrihydrite were proposed based on computational and experimental analysis. Overall, this study revealed the important role of NOM in CAP degradation and the environmental behavior of ferrihydrite.
Review
Environmental Sciences
Qiang Liu, Kudakwashe Meki, Hao Zheng, Yanfei Yuan, Mengying Shao, Xianxiang Luo, Xiaoyun Li, Zhixiang Jiang, Fengmin Li, Baoshan Xing
Summary: Salt-affected soils urgently need to be remediated to achieve carbon neutrality and food security. Limited reviews are available on biochar performance in remediating salt-affected soils in the context of carbon neutrality and climate change mitigation. This work summarized the two pathways to achieve carbon neutrality during remediating salt-affected soils using biochars, i.e., biochar production from sustainable feedstock using thermal technologies, application for promoting plant productivity and mitigating greenhouse gas (GHG) emission.
Article
Environmental Sciences
Anqi Wang, Jun Hou, Jun Xia, Jun Wu, Baoshan Xing
Summary: The study employed tannins (TAs) with phenolic hydroxyl groups to enhance the performance of sulfidated zerovalent iron (S-ZVI) in degrading trichloroethylene (TCE). The TA@S-ZVI showed higher degradation efficiency by hydrolysis compared to S-ZVI mainly degraded via beta-elimination. However, S-ZVI exhibited higher reactivity on the intermediates (DCE) than TA@S-ZVI.
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)
