Article
Engineering, Environmental
Minhsuan Chen, Kazuyuki Oshita, Masaki Takaoka, Kenji Shiota
Summary: The study evaluated the impact of sewage sludge phosphorus content on heavy metal behavior during co-incineration with municipal solid waste. It found that co-incineration delayed pyrolysis and polymer/fixed carbon incineration, resulting in increased sludge ratio and shifted weight loss peak. The study also observed a higher residual heavy metal ratio after sewage sludge mono-incineration compared to MSW. It further identified a synergistic effect of co-incineration on copper, but not on lead or cadmium.
Article
Chemistry, Analytical
Fan Yu, Hongbing Lv, Lian Fan, Lishuai Chen, Yanjun Hu, Xu Wang, Qianqian Guo, Xiaoqiang Cui, Nan Zhou, Long Jiao
Summary: The addition of poplar sawdust and low-oxygen conditions can improve the properties of sludge-derived biochar, including increasing its specific surface area and reducing the heavy metal content. The presence of 10% O2 during pyrolysis also promotes the formation of oxidizable states of heavy metals and lowers the ecotoxicity.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Chemistry, Analytical
Sirui Tong, Shuping Zhang, Haoxin Yin, Jiaxing Wang, Minzi Chen
Summary: This study evaluated the co-hydrothermal treatment combined with pyrolysis of rice straw and sewage sludge to produce biochar, aiming to reasonably dispose of sewage sludge as a resource and avoid secondary pollution. Results showed a synergy between rice straw and sewage sludge during the co-HTP process, leading to slightly higher biochar yield than predicted values. The co-HTP process also promoted the increase of aromaticity and stability of biochar, with a significant increase in specific surface area. Additionally, the process decreased the total concentrations of heavy metals in biochar and helped immobilize heavy metals to reduce environmental risks.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Environmental Sciences
Wenjin Li, Jun Meng, Yule Zhang, Ghulam Haider, Tida Ge, Haibo Zhang, Zhangtao Li, Yijun Yu, Shengdao Shan
Summary: The co-pyrolysis of sewage sludge and plastics, particularly polyvinyl chloride (PVC) microplastics with or without metal additives, has been investigated for the production of biochars as a solution to plastic pollution. The study compared the characteristics and environmental risks associated with heavy metals in biochars obtained from the co-pyrolysis of sludge and microplastic. The results showed that the addition of metal-loaded PVC increased the total concentrations of certain heavy metals in the biochars, but reduced their bioavailability. Furthermore, the heavy metals in biochars derived from the co-pyrolysis of sludge and metal-loaded PVC had a higher percentage of stable fraction and lower potential ecological risk index value. Overall, the study suggests that the co-pyrolysis of metal-loaded PVC microplastic and sewage sludge positively affects the immobilization of heavy metals during the process.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Xingdong Wang, Victor Wei-Chung Chang, Zhiwei Li, Yang Song, Chunxing Li, Yin Wang
Summary: The study revealed that food waste digestate (FWD) as an additive can significantly reduce the heavy metal content in blended biochar, thereby improving its ecological risk index and phytotoxicity index.
Article
Engineering, Chemical
Zhiwei Wang, Qi Nie, Zhongfang Lei, Zhenya Zhang, Kazuya Shimizu, Tian Yuan
Summary: This study investigated the adsorption performance of co-pyrolysis biochar derived from sewage sludge and gypsum (CaSO4) on Pb(II) removal. The maximum Pb(II) adsorption capacity of co-pyrolysis biochar was significantly improved compared to single sewage sludge biochar. Model analysis showed that monolayer sorption, chemisorption, intraparticle diffusion, and endothermic processes were involved in the adsorption process. Fe2+ and NH4+ were found to be the main interfering ions. Mineral precipitation and ion exchange were calculated as the major adsorption mechanisms for Pb(II) removal. The co-pyrolysis biochar demonstrated good reusability for Pb(II) removal. These findings provide fundamental references for the sustainable utilization of solid wastes for heavy metals removal.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Environmental Sciences
Xue Min, Tao Ge, Hui Li, Yanhong Shi, Ting Fang, Bixuan Sheng, Huaiyan Li, Xinju Dong
Summary: This study investigated the synergetic effect of co-pyrolysis and ZnCl2 impregnation treatment on the surface characteristics and potential ecological risk of heavy metals in sewage sludge derived biochar. The results showed that ZnCl2 impregnation increased biochar yield and the content of O and S, but decreased ash content and pH. Furthermore, ZnCl2 impregnation also decreased the thermal stability of biochar.
Article
Environmental Sciences
Qiao Xiong, Xiang Wu, Hang Lv, Shuhua Liu, Haobo Hou, Xu Wu
Summary: This study investigated the effects of rice husk dose and pyrolysis temperature on the phosphorus fractions and environmental risk of heavy metals in biochar co-pyrolyzed from sewage sludge and rice husk. The results showed that co-pyrolysis could improve biochar-P bioavailability, and the P species mainly existed as orthophosphate in biochar. Additionally, the toxicity and mobility of heavy metals decreased with increasing rice husk dose and pyrolysis temperature, indicating that co-pyrolysis of sewage sludge and rice husk could be a promising P reuse strategy.
Article
Energy & Fuels
Ao Zhou, Shilin Yu, Shuanghui Deng, Hrvoje Mikulcic, Houzhang Tan, Xuebin Wang
Summary: This paper studied the enrichment characteristics of different heavy metals in municipal sludge and its pyrolysis biochar, as well as their leaching characteristics in the environment. The experimental results showed that pyrolysis can promote the enrichment of heavy metals in sludge in pyrolysis biochar. Different metals have different responses to pyrolysis temperature. Pyrolysis can inhibit the leaching of heavy metals in sludge, and the leaching rates of certain metals first increase and then decrease with increasing pyrolysis temperature.
JOURNAL OF THE ENERGY INSTITUTE
(2023)
Article
Chemistry, Analytical
Yuting Wu, Yadong Wang, Peiao Chen, Yang Yang, Ziyue Tang, Yingquan Chen, Haigping Yang, Hanping Chen
Summary: This study investigated the co-pyrolysis of municipal sewage sludge (MSS) with biomass and the second adsorption of KH2PO4-modified biochar to reduce nitrogen emissions. Co-pyrolysis with cellulose was found to inhibit the conversion of nitrogen into pyrolytic gas and increase the nitrogen content in pyrolytic biochar. The nitrogen fixation rate increased with cellulose addition, and co-pyrolysis with 30% sugarcane bagasse showed the optimal effect on nitrogen fixation (39%). Furthermore, the addition of KH2PO4-modified biochar increased the adsorption of nitrogenous volatiles and fixed nitrogen into oxides-N, with the total nitrogen fixation rate reaching a maximum (47.65%) at 5% KH2PO4 impregnation. Thus, co-pyrolysis of MSS with 30% sugarcane bagasse and the second adsorption of 5% KH2PO4-modified biochar provided an effective nitrogen fixation method. This study offered a practical solution to improve the treatment of municipal sewage sludge through pyrolysis technology.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Review
Chemistry, Multidisciplinary
Badr A. Mohamed, Roger Ruan, Muhammad Bilal, Nadeem A. Khan, Mukesh Kumar Awasthi, Mariam A. Amer, Lijian Leng, Mohamed A. Hamouda, Dai-Viet Nguyen Vo, Jian Li
Summary: The large amounts of sewage sludge produced by municipal wastewater treatment plants pose significant environmental and economic challenges, necessitating advanced disposal methods. Conventional methods of sewage sludge disposal contribute to greenhouse gas emissions and pollution. Furthermore, sewage sludge-derived biochar often cannot be directly used in soil applications due to high levels of heavy metals and other toxic compounds, which affect soil biota and earthworms. In this review, we examine the co-pyrolysis of biomass and sewage sludge, focusing on the stabilization of heavy metals and reduction of toxicity in the sludge-derived biochar. We find that co-pyrolyzing sewage sludge with biomass materials reduces heavy metal concentrations and lowers the environmental risk of the resulting biochar by up to 93%. Biochar produced from co-pyrolysis can enhance the stimulation of soil biota reproduction by 20-98%. The immobilization and transformation of heavy metals are influenced by the mixing ratio of co-feed materials, pyrolysis temperature, and atmosphere.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Green & Sustainable Science & Technology
Chunxing Li, Jie Li, Shengyu Xie, Guangyi Zhang, Lanjia Pan, Ruming Wang, Gang Wang, Xiaofang Pan, Yin Wang, Irini Angelidaki
Summary: In this study, a combination of hydrothermal treatment and alkaline hydrothermal treatment with pyrolysis was used to immobilize heavy metals in sewage sludge. The results showed that the heavy metals mainly remained in the hydrochar and biochar, and alkaline hydrothermal treatment combined with pyrolysis was particularly effective for immobilizing zinc and nickel. Additionally, the potential ecological risk of heavy metals in the sewage sludge-based biochar significantly decreased after treatment.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Energy & Fuels
Ningbo Gao, Mwenya Humphrey Milandile, Ayesha Tariq Sipra, Sheng Su, Norbert Miskolczi, Cui Quan
Summary: This study developed a new catalyst to produce syngas through the co-pyrolysis of municipal solid waste and biomass. It offers a sustainable approach to waste management and energy production by utilizing valuable resources and reducing the concentration of complex compounds and heavy hydrocarbons.
Article
Engineering, Environmental
Yuxuan Yang, Zhaoping Zhong, Haoran Du, Qian Li, Xiang Zheng, Renzhi Qi, Pengkun Ren
Summary: Na+/K+/Mg2+/Ca2+ expansion-modified vermiculite and calcination expansion-modified vermiculite were used to control the emission of heavy metals during pyrolysis. The retention of heavy metals by modified vermiculite was influenced by its textural properties, morphology, and expansion capacity.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Environmental Sciences
Tengfei He, Mengjie Zhang, Baosheng Jin
Summary: This study systematically investigates the effects of municipal sewage sludge (MS) and Sedum alfreddi L. (SA) on the enrichment and stability of heavy metals (HMs) in pyrolysis residue. The results show that co-pyrolysis of MS and SA can enhance the stability and enrichment of HMs in the pyrolysis residue, while reducing the ecological risk of the biochar.
Article
Agricultural Engineering
Xingdong Wang, Chunxing Li, Bin Zhang, Jingjiang Lin, Qiaoqiao Chi, Yin Wang
BIORESOURCE TECHNOLOGY
(2016)
Article
Engineering, Environmental
Chunxing Li, Xingdong Wang, Guangyi Zhang, Guangwei Yu, Jingjiang Lin, Yin Wang
Article
Agricultural Engineering
Chunxing Li, Xingdong Wang, Guangyi Zhang, Jie Li, Zhiwei Li, Guangwei Yu, Yin Wang
BIORESOURCE TECHNOLOGY
(2018)
Article
Chemistry, Applied
Jiangze Han, Xingdong Wang, Junrong Yue, Shiqiu Gao, Guangwen Xu
FUEL PROCESSING TECHNOLOGY
(2014)
Review
Environmental Sciences
Xingdong Wang, Chunxing Li, Zhiwei Li, Guangwei Yu, Yin Wang
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2019)
Article
Environmental Sciences
Xingdong Wang, Qiaoqiao Chi, Xuejiao Liu, Yin Wang
Article
Engineering, Environmental
Zhan Chen, Guangwei Yu, Yin Wang, Xuejiao Liu, Xingdong Wang
Article
Engineering, Environmental
Zhan Chen, Guangwei Yu, Yin Wang, Xingdong Wang
Article
Engineering, Environmental
Chunxing Li, Shengyu Xie, Yu Wang, Ruqing Jiang, Xingdong Wang, Nan Lv, Xiaofang Pan, Guanjing Cai, Guangwei Yu, Yin Wang
Summary: This study investigated the co-pyrolysis of livestock feces and various biomass wastes to prepare biochar, finding that wood chips and bamboo sawdust significantly influenced the biochar characteristics by reducing ash content and increasing heating value. Co-pyrolysis of manure with rice husk or chaff produced biochar with lower pH and electrical conductivity. Addition of certain biomass led to increased residual fractions of Cu and Zn in biochar, reducing environmental risks.
Article
Engineering, Environmental
Xingdong Wang, Victor Wei-Chung Chang, Zhiwei Li, Yang Song, Chunxing Li, Yin Wang
Summary: The study revealed that food waste digestate (FWD) as an additive can significantly reduce the heavy metal content in blended biochar, thereby improving its ecological risk index and phytotoxicity index.
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)