Review
Environmental Sciences
Hailong Zhao, Hanqiao Liu, Guoxia Wei, Ning Zhang, Haoyu Qiao, Yongyue Gong, Xiangnan Yu, Jianhua Zhou, Yuhang Wu
Summary: The surge of medical waste during the COVID-19 pandemic has exceeded the disposal capacity of existing facilities. This review presents the current status of medical waste generation and disposal in China, and analyzes the characteristics and applicability of emergency disposal technologies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Ming Zhang, Junxiao Wei, Huan Li, Yang Chen, Jianguo Liu
Summary: China, as the largest developing country, has been facing an increasing amount of municipal solid waste (MSW). Incineration is the mainstream method for MSW treatment, but air pollution emissions have been a major concern. The Chinese government is committed to implementing MSW classification, but specific models and reduction targets are still unclear. This study projected scenarios of air pollution emissions until 2030 based on different MSW classification models and diffusion rates of ultra-low emission technology. The results provide valuable references for MSW management and air pollution reduction in China.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
M. Hammerschmid, C. Aguiari, F. Kirnbauer, E. Zerobin, M. Brenner, R. Eisl, J. Nemeth, D. Buchberger, G. Ogris, R. Kolroser, A. Goia, R. Beyweiss, K. Kalch, S. Mueller, H. Hofbauer
Summary: The present paper focuses on developing a novel virtual representation framework for optimizing standalone hazardous waste rotary kiln incineration plants. A digital support tool can be provided to optimize the plant's waste management, operation, and maintenance by combining thermochemical-based simulation models with a fuel classification system. The novel virtual representation of the hazardous waste incineration plant could definitely make a reasonable contribution to optimize the efficiency of thermal waste treatment within the hazardous waste sector in Austria and Europe.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Engineering, Environmental
Lei Wang, Xinyu Huang, Xuantian Li, Xiaotao Bi, Dahai Yan, Wenzheng Hu, C. Jim Lim, John R. Grace
Summary: This research examines the fixation behavior of Cd and Pb in industrial cement kilns and analyzes the effect of Cl loadings. It finds that Cd forms Cd(OH)2(g) in highly alkaline environments, while nearly 90% of Pb is volatilized as PbCl2(g). The results also show that increased Cl concentrations decrease the proportion of Pb and Cd in clinker but increase their concentrations in kiln dust.
Article
Engineering, Environmental
Junxiao Wei, Huan Li, Jianguo Liu
Summary: China is the second-largest producer of municipal solid waste (MSW) in the world and incinerates the largest quantity of MSW. However, there is a lack of data on the latest dioxin emissions from MSW incineration (MSWI) in China. This study projected China's future MSW generation towards 2050 and discussed scenarios for reducing dioxin emissions through MSW diversion and air pollution control device (APCD) upgrades.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Energy & Fuels
Xue Liu, Lunbo Duan, Zhihao Zhou, Minmin Zhou
Summary: Rotary kiln incineration technology is an important method for achieving the harmless, reduced, and resourceful disposal of solid waste. Introducing oxygen carrier (OC) in the rotary kiln significantly improves the conversion rate of solid waste and reduces CO emissions. However, the impact of OC on the emissions of NO, SO2, and HCl is still unknown. This research investigates the effects of OCs on the emission characteristics of NO, SO2, and HCl by adding natural manganese and ilmenite ores as OCs in a continuous-feeding rotary kiln during the combustion of biomass and hazardous waste. The study reveals that introducing OCs improves oxygen distribution and promotes the conversion of fuel nitrogen to NO, while also affecting the emissions of SO2 and HCl.
Article
Environmental Sciences
Monika Zaluska, Anna Justyna Werner-Juszczuk, Katarzyna Gladyszewska-Fiedoruk
Summary: This article examines the correlation between the amount of pollutants emitted from medical waste incinerator plant and the number of COVID-19 infections, based on the example of Podlaskie Voivodeship in Poland. The results show a statistically significant moderate positive correlation between the amount of covid waste and the number of COVID-19 cases. Additionally, there is also a statistically significant moderate correlation between the number of COVID-19 cases and emissions of SO2, NOx, and HCl.
AEROSOL AND AIR QUALITY RESEARCH
(2022)
Review
Environmental Sciences
Shiv Bolan, Lokesh P. Padhye, Manish Kumar, Vasileios Antoniadis, Srinidhi Sridharan, Yuanyuan Tang, Narendra Singh, Choolaka Hewawasam, Meththika Vithanage, Lal Singh, Jorg Rinklebe, Hocheol Song, Kadambot H. M. Siddique, M. B. Kirkham, Hailong Wang, Nanthi Bolan
Summary: Medical waste includes infectious, hazardous, radioactive, and potentially toxic elements (PTEs) that are produced in the treatment, diagnosis, and immunisation processes of animals and humans. Common technologies for its safe management are incineration and sterilisation. Proper disposal and land application of medical waste ash are crucial to prevent the release of PTEs and ensure environmental safety. This review paper critically examines the dynamics of PTEs, environmental and health implications, and misconceptions regarding medical waste.
ENVIRONMENTAL POLLUTION
(2023)
Review
Green & Sustainable Science & Technology
Jiri Bojanovsky, Vitezslav Masa, Igor Hudak, Pavel Skryja, Josef Hopjan
Summary: This paper provides a semi-systematic review of rotary kilns, their applications, and current research trends. It highlights the opportunities for uncommon applications, such as pyrolysis in rotary kilns for biogas plant digestate treatment, as well as the integration of artificial intelligence in control processes. The waste-to-energy approach and waste pyrolysis emerge as significant trends within rotary kiln research. The results of this review open up new perspectives for further research on integrated solutions that consider both operational and energy aspects for the sustainability and environmental impact of rotary kilns.
Article
Energy & Fuels
Cristian Ciobanu, Paula Tudor, Irina-Aura Istrate, Gheorghe Voicu
Summary: This paper analyzes the impact of co-processing waste in cement manufacture on the environment and human health, and investigates how the combustion components of waste can affect the characteristics of clinker and cement. The main objective is to determine the emission levels of pollutants and estimate the level of atmospheric air pollution. Based on the assessments, cement factories will take measures to reduce pollution and comply with industry regulations.
Article
Engineering, Environmental
Matteo Masotta, Irene Rocchi, Gabriele Pazzagli, Roberto D'Ambrosio, Maurizia Seggiani
Summary: The research indicates that temperature is the key operating parameter affecting sulfur recovery efficiency and plant operation during industrial combustion. Full-scale tests on a rotary kiln have shown continuous and effective sulfur recovery with reduced solid waste output. At operating temperatures of 1100-1200 degrees Celsius, interactions between refractory materials and combustion ashes are negligible.
Article
Green & Sustainable Science & Technology
Jiawei Wang, Liyuan Liu, Siqi Li, Yang Chen, Tao Wang, Yongsheng Zhang
Summary: Flue gas mercury emissions from waste rotary kiln incineration plants in Northern China were sampled using different methods, with average concentrations of 13.38 +/- 4.08 mu g/Nm(3) and 18.66 +/- 8.19 mu g/Nm(3) reported. The study found that the uncertainty in Hg measurements of the raw feedstock contributed to fluctuations in flue gas Hg data. Results also showed that the scrubbing tower in the system could effectively remove Hg2+ from the flue gas, enhancing total Hg removal efficiencies.
JOURNAL OF CLEANER PRODUCTION
(2021)
Review
Engineering, Environmental
Isla Hodgkinson, Roman Maletz, Franz-Georg Simon, Christina Dornack
Summary: The concept of circular economy aims to mitigate climate change by circulating materials, but waste incineration is necessary to remove hazardous substances. Emission values for waste-to-energy processes vary between countries, with Europe and South Korea having the strictest standards. China and India are making efforts to improve their environmental protection standards, with room for further improvement.
WASTE MANAGEMENT & RESEARCH
(2022)
Article
Engineering, Chemical
Janusz Lasek, Krzysztof Glod, Krzysztof Slowik, Adam Cygan, Yueh-Heng Li
Summary: This study investigates the behavior of five types of materials in a rotary kiln reactor and validates mathematical models to predict mean residence time. The models successfully simulate the dynamic characteristics of the reactor and provide insights into the process.
Article
Green & Sustainable Science & Technology
Anurag Deepak, Varun Sharma, Dinesh Kumar
Summary: This paper addresses the environmental burden of existing biomedical waste management in northern India and suggests constructive steps to achieve a less impactful environment through Life Cycle Assessment (LCA). The study finds that an integrated system including incineration with energy recovery, autoclave-shredder, chemical disinfection, and Effluent Treatment Plant (ETP) reduces the environmental burden compared to the present state. The paper suggests that LCA is a beneficial tool for decision-makers and managers to reduce environmental burden and develop a life cycle inventory database for developed economies.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Thermodynamics
Janusz Wojciech Bujak
Article
Thermodynamics
Janusz Wojciech Bujak
Article
Thermodynamics
Janusz Wojciech Bujak
Article
Green & Sustainable Science & Technology
Janusz Wojciech Bujak
Article
Engineering, Environmental
J. Bujak
Article
Engineering, Environmental
Janusz Bujak, Piotr Sitarz
Article
Energy & Fuels
Janusz Bujak, Piotr Sitarz, Paulina Jasiewicz
Article
Green & Sustainable Science & Technology
J. Bujak, P. Sitarz, M. Nakielska
Summary: The article discusses a series of conditions and restrictions that must be complied with during the combustion process of MBM, and a multi-dimensional analysis model was developed to determine the optimal working area. The study reveals that it is possible to determine the MBM combustion optimal working area that complies with all of the conditions and restrictions.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Janusz Bujak, Piotr Sitarz, Rafal Pasela
Summary: The technology of waste-management thermal processing is widely used due to its advantages, but continuous research is needed to develop methods for reducing harmful emissions and improving pollutant removal. Experimental redesign of a thermal industrial waste treatment plant successfully reduced concentrations of carbon monoxide and volatile organic compounds in flue gases without affecting other technological parameters.
Article
Energy & Fuels
Janusz Bujak, Piotr Sitarz, Krzysztof Bujak, Sebastian Majkowski, Rafal Pasela
Summary: This paper presents a model-based analysis of the variability of thermodynamic and chemical parameters in a rotary kiln during thermal treatment of animal waste. The purpose of the analysis is to predict and optimize the variability of selected process parameters. The presented model and results provide insights into the interdependencies between the parameters and aid in the design of corrective actions for process optimization.
Article
Energy & Fuels
Janusz Bujak, Piotr Sitarz, Magdalena Nakielska
Article
Engineering, Environmental
Janusz Bujak
ENVIRONMENT PROTECTION ENGINEERING
(2016)
Article
Engineering, Environmental
Janusz Wojciech Bujak
ENVIRONMENT PROTECTION ENGINEERING
(2016)
Article
Engineering, Environmental
Janusz Bujak, Piotr Sitarz
ENVIRONMENT PROTECTION ENGINEERING
(2016)
Article
Environmental Sciences
Elizabeth Alvarez-Chavez, Stephane Godbout, Mylene Genereux, Caroline Cote, Alain N. Rousseau, Sebastien Fournel
Summary: This study evaluated the effect of alternative filtering materials and bed aeration on the retention of nutrients and fecal bacteria in woodchip bedded stand-off pads for cows. The results showed that the alternative biofilters were more efficient in removing COD, SS, TN, and NO3-N, while conventional biofilters were more efficient for PO4-P removal. Aeration did not have a significant effect under the tested temperature conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yike Zhang, Zengyi Ma, Zhuoting Fang, Yuandong Qian, Zhiping Huang, Yilong Ye, Jianhua Yan
Summary: This study investigates the application of oxygen enrichment melting technology in the melting of municipal solid waste incineration fly ash. The results demonstrate that oxygen enrichment technology can reduce energy consumption and operating costs, as well as decrease pollution emissions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Liangang Xiao, Mingkai Leng, Philip Greenwood, Rongqin Zhao, Zhixiang Xie, Zengtao You, Junguo Liu
Summary: This study investigates the effects of grazing exclusion on soil organic carbon (SOC) accumulation and vegetation recovery. It finds that grazing exclusion can increase the potential for SOC accumulation, and higher annual precipitation is positively correlated with SOC accumulation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Beatrice Cantoni, Jessica Ianes, Beatrice Bertolo, Selena Ziccardi, Francesco Maffini, Manuela Antonelli
Summary: This study evaluates the performance of ozonation and adsorption as in-series processes compared to standalone processes for the removal of Contaminants of Emerging Concern (CECs) in drinking water. The combination of both processes proves to be more effective than adsorption and ozonation alone. Ozonation improves the adsorption performance of poorly-oxidizable CECs but worsens that of well-oxidizable compounds. This research highlights the importance of considering both processes in the removal of CECs in drinking water treatment plants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Dan Li, Bingjun Liu, Yang Lu, Jianyu Fu
Summary: A new Standardized compound Drought and Saltwater intrusion Index (SDSI) was developed to detect changes in the severity of CDSEs in six estuaries. The study found that saltwater intrusion plays a dominant role in influencing SDSI severity, and CDSEs vary in frequency, duration and severity among different estuaries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yong-Qiang Li, Rui Sun, Chong-Miao Zhang, Zi-Xuan Liu, Rui-tao Chen, Jian Zhao, Hua-dong Gu, Huan-Cai Yin
Summary: In this study, an electron beam excitation multi-wavelength ultraviolet (EBE-MW-UV) system was established and found to have significantly higher microbial inactivation effects compared to single-wavelength UV-LEDs in water. Mechanism analysis revealed that EBE-MW-UV damaged microbial DNA and proteins, and generated additional reactive oxygen species, leading to microbial inactivation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Kaili Ma, Xinxin Han, Qiujuan Li, Yu Kong, Qiaoli Liu, Xu Yan, Yahong Luo, Xiaopin Li, Huiyang Wen, Zhiguo Cao
Summary: This study reveals that the use of a tryptophan-degrading microbial consortium (TDC) can enhance the hydrolysis efficiency of waste activated sludge (WAS), increasing the yield and quality of short chain fatty acids (SCFAs) and improving the solubilization and release of organic substances from WAS.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Ling Xiong, Rui Li
Summary: Incorporating Ecosystem Service Value (ESV) into land use planning can provide informed land management decisions. This study evaluates the ESV of Guizhou Province in China's karst region. The results show an increase in total ESV over the past two decades due to ecological restoration projects.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
M. Geetha Jenifel
Summary: This article discusses the importance of water and the pollution of freshwater resources, and introduces the use of machine learning models and blockchain technology to predict and protect water quality.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Stanslaus Terengia Materu, Taotao Chen, Chang Liu, Daocai Chi, Meng Jun
Summary: The study showed that H2SO4-modified biochar can reduce P leaching, increase soil available P, and enhance plant P uptake in alternate wetting and drying irrigation systems. Biochar additions B20A and IAWDB20A-M were effective in improving yield, reducing P leaching, and increasing APB.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Amir Nouri, Ali Akbar Zinatizadeh, Sirus Zinadini, Mark Van Loosdrecht
Summary: This study focuses on the development of an air-lift bio-electrochemical reactor (ALBER) with a continuous feeding regime to enhance nitrogen removal from synthetic wastewater. The effect of temperature, hydraulic retention time (HRT), N -NH+4 /TN ratio, and current density on the reactor performance was investigated, and the ALBER achieved a maximum TN removal of 73%. The results suggest that the ALBER has potential for treating industrial wastewater at low temperatures.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Peifang Wang, Guoxiang You, Yang Gao, Juan Chen, Xun Wang, Chao Wang
Summary: This study investigated the ecological processes of microbial communities and N- and P-transformation processes in multistage agricultural drainage ditches. The results showed that the microbial communities were co-shaped by agricultural practices and ditch size, which further governed the N and P removal performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Xiaofeng Niu, Huan Wang, Tao Wang, Peiyu Zhang, Huan Zhang, Hongxia Wang, Xianghong Kong, Songguang Xie, Jun Xu
Summary: Microorganisms play a critical role in maintaining ecosystem balance, and environmental stressors can affect the assembly processes of microbial communities. The study found that different stressors have opposite effects on microbial community assembly in water and sediment, and warming has different influences compared to herbicides and nutrients.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yuqing Tan, Qiming Cheng, Fengwei Lyu, Fei Liu, Linhao Liu, Yihong Su, Shaochun Yuan, Wenyu Xiao, Zhen Liu, Yao Chen
Summary: The exacerbation of global warming, extreme weather events, and rapid urbanization have led to increased flooding in urban areas. China has adopted sponge city as an efficient means of preventing and controlling urban floods. Using a SWMM-FVCOM model, the hydrological reduction and control effect of sponge city construction (SPCC) within a university campus were evaluated. The study found that implementing SPCC effectively mitigates surface runoff and reduces the severity of urban flooding. However, the efficacy of runoff control decreases with longer rainfall return periods.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Zhonghan Chen, Qiuyan Li, Shibo Yan, Juan Xu, Qiaoyun Lin, Zhuangming Zhao, Ziying He
Summary: Tidal rivers are important biochemical reaction channels, receiving carbon from wastewater and agricultural drains, affecting CO2 emissions. Through modeling and data analysis, researchers explored carbon distribution, emissions, and greenhouse effects, emphasizing the potential of river management to change global CO2 emissions under climate change.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)