Article
Chemistry, Applied
Min-Zhao Lin, Wei-Xiong Li, Tian Hu, Huaitian Bu, Zeng-Lin Li, Tianfu Wu, Xia-Xiao Wu, Chao Sun, Yongtao Li, Gang-Biao Jiang
Summary: The study developed a novel method to remove harmful algal blooms by combining flocculation and flotation functions using self-branched chitosan and CaO2@PEG. Experimental results demonstrated the effectiveness and biocompatibility of this method, which can improve water quality and reduce total phosphorus concentrations.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Esther E. Jaekel, Juho Antti Sirvio, Markus Antonietti, Svitlana Filonenko
Summary: This novel method utilizes reactive eutectic media to extract cellulose nanocrystals and functionalize them with positively charged functional groups in a one-step process. The eutectic medium acts as a cellulose-solubilizing agent, while a Leuckart reagent enables reductive amination of carbonyl groups in cellulose chains, resulting in water-dispersible nanocellulose products with high crystallinity.
Article
Environmental Sciences
Ziqiu Han, Jiangbo Huo, Xinbo Zhang, Huu Hao Ngo, Wenshan Guo, Qing Du, Yufeng Zhang, Chaocan Li, Dan Zhang
Summary: A newly synthesized green flocculant PBCF showed great potential in effectively removing humic acid from natural water. The study demonstrated that PBCF performed well at a specific dose and pH range, achieving high organic removal efficiency. The results also showed its effectiveness in treating lake water.
Article
Engineering, Chemical
Bin Wang, Si Hong, Qian Sun, Xuefei Cao, Shixin Yu, Zhuohua Sun, Tong-Qi Yuan
Summary: In this study, the heterogeneity of lignin was improved by an organic solvent fractionation method, which resulted in the synthesis of efficient flocculants. The homogeneity of the fractionated lignin contributed to the improved efficiency, while the low molecular weight and hydrophilicity enhanced the dispersibility and reactivity of the flocculants in polymerization reactions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Materials Science, Textiles
Chaoying Chen, Xiumei Zhang, Hridam Deb, Fugen Liang, Haidong Zhu, Kecong Cui, Yong Zhang, Juming Yao
Summary: BC-g-PAM, an eco-friendly flocculant, has shown excellent flocculation performance on papermaking wastewater, effectively removing suspended solids and improving water quality. Additionally, BC-g-PAM exhibits outstanding biodegradability, making it environmentally friendly.
FIBERS AND POLYMERS
(2021)
Article
Polymer Science
Liu Wei, Ma Jinju, Pang Hongjian, Wang Zongwu, Yao Xinding
Summary: The preparation and properties of starch-modified flocculant were studied, compared with commercial flocculants, showing that starch-modified flocculant exhibited better flocculation performance under different dosages and pH values.
IRANIAN POLYMER JOURNAL
(2021)
Article
Biotechnology & Applied Microbiology
Hassimi Abu Hasan, Jahira Alias, Farahanim Nabila Arbain, Siti Rozaimah Sheikh Abdullah, Nor Azman Kasan, Mohd Hafizuddin Muhamad
Summary: This study reuses sago mill effluent (SME) for bio-based polymeric flocculant production, optimizing conditions to achieve high yield of bioflocculants, COD removal, and enhanced flocculating activity. The bioflocculants produced contained various elements and sugars, showing potential for supporting the circular economy concept and reducing waste discharge to the environment.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Materials Science, Textiles
Guyu Lin, Qi Tang, He Huang, Chongwen Yu, Jianyong Yu, Zhaoling Li, Bin Ding
Summary: An effective and environmentally friendly extraction method using deep eutectic solvent (DES) was developed for ramie fiber extraction. The method can remove non-cellulosic components without sacrificing the properties or structure of cellulose. It also allows for the separation of beneficial by-products, contributing to recycling economy and sustainable development.
TEXTILE RESEARCH JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Heng Zhang, Guohao Guan, Tao Lou, Xuejun Wang
Summary: As a promising natural polymer flocculant for water treatment, the anionic terpolymer CIS exhibits excellent flocculation properties towards cationic dye. It shows rapid dye removal rate and good decolorization ratio under optimal synthesis conditions. The CIS flocculant also demonstrates cost effectiveness, eco-friendliness, and potential applications in wastewater treatment.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Paper & Wood
G. Y. Romero-Zuniga, S. Sanchez-Valdes, M. A. Ceniceros-Reyes, I. Sifuentes-Nieves, C. A. Gallardo-Vega, S. G. Solis-Rosales, P. Gonzalez-Morones, E. Hernandez-Hernandez
Summary: This study demonstrates that microwave treatment of natural fiber wastes can efficiently produce high purity and crystalline cellulose microfibrils. The process does not require the use of chemical substances or mechanical processes, and no additives are used. It is a novel and optimized method for producing high-value-added cellulose microfibrils.
Article
Engineering, Chemical
Rui Zhang, Zhong-yue Chang, Ling-ling Wang, Wei-xin Cheng, Rong-ping Chen, Lei Yu, Xu-hai Qiu, Jian-gang Han
Summary: The study evaluated the flocculation feasibilities of tobacco wastewater and livestock and poultry wastewater by the extracellular polymeric substances of Bacillus sp. The crude EPS showed larger floc sizes and higher removal efficiencies compared to chemical flocculants. Charge neutralization was dominant in LPW flocculation, while chemical reactions with Fe(III) played a role in TBW flocculation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Agricultural Engineering
Zhihui Qin, Shuyuan Zhao, Hong Chi, Lijie Ma, Liu Liu, Ruiyun Zhang, Longdi Cheng
Summary: This study investigated one-step extraction conditions and the recovery possibility of Ethylene Glycol (EG) solvent for hemp fibers, finding that the recovered solvent still had effective separation ability. Treated fibers had higher cellulose content and fiber yield compared to the traditional alkaline method, meeting national standards and spinning requirements. The study demonstrated the potential of organic solvent recovery degumming for cellulose fiber extraction.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Engineering, Environmental
Hessam Shabanizadeh, Mohsen Taghavijeloudar
Summary: The use of natural flocculants in the coagulation-flocculation process for water and wastewater treatment has gained attention for its simplicity and safety. This study evaluated the performance of pomegranate seed powder as a novel natural flocculant for treating pulp and paper wastewater (PPWW). The results showed that pomegranate seeds contained active substances that contributed to their coagulating ability, achieving high removal efficiencies of COD and turbidity when used at optimal dosages. Dual flocculation of pomegranate seeds and alum showed a synergistic effect, resulting in even higher removal rates and shorter treatment time.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Materials Science, Paper & Wood
S. Basak, D. B. Shakyawar, Kartick K. Samanta, Niranjan Kumar, M. Bhowmick, Sanjoy Debnath, R. K. Ghosh, B. S. Manjunatha, S. Ghosh, I. Mustafa, V. Kadam
Summary: A new method of manufacturing flexible composite using a blend of cellulose-protein fibers and suitable chemical formulation has been developed. The physical properties of the developed product were compared with artificial leather and real leather, showing promising results.
Article
Chemistry, Multidisciplinary
Celine Moreau, Xavier Falourd, Malika Talantikite, Bernard Cathala, Ana Villares
Summary: We have developed a one-pot modified carboxymethylation reaction to prepare multifunctional cellulose fibers. By introducing negative charge and benzophenone moieties on the surface of cellulose, we were able to fabricate papers and 3D networks with unique properties, such as fibrillation and hydrophobization.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)