Energy, environment and economy assessment of medical waste disposal technologies in China

Zhao, Hailong; Wang, Lei; Liu, Fang; Liu, Han-Qiao; Zhang, Ning; Zhu, Yujun

doi:10.1016/j.scitotenv.2021.148964

Cited by 76 publications

(34 citation statements)

References 31 publications

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“…In this vein, terms such as medical waste, waste generation, waste disposal, incineration, infectious waste, transportation, biomedical waste, healthcare waste, and hazardous waste have occurred frequently within the titles and abstracts of the research articles. In this cluster, the importance of proper healthcare waste management has been highlighted by many scholars in terms of controlling the environmental transmission of COVID-19 ( Shammi et al, 2021 ), perception and attitudes towards medical waste disposal ( Islam et al, 2020 ), water, sanitation, hygiene, and waste disposal practices as COVID‑19 response strategies ( Islam et al, 2021 ), energy generation from hazardous waste during the pandemic ( Valizadeh et al, 2021 ), selection of the best healthcare waste disposal techniques ( Manupati et al, 2021 ), bio-medical waste incineration ( Thind et al, 2021 ), assessment of healthcare waste disposal technologies in terms of energy, environment, and economy ( Zhao et al, 2021 ), and healthcare waste separation behavior (F. Chen et al, 2021). Wastewater management (cluster #6) and COVID-19 transmission through infectious waste (cluster #7) are considered as the mainstream research frontier regarding the prevention of SARS-CoV-2 transmission.…”

Section: Resultsmentioning

confidence: 99%

Waste management beyond the COVID-19 pandemic: Bibliometric and text mining analyses

Ranjbari¹,

Esfandabadi²,

Gautam³

et al. 2023

Gondwana Research

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Section: Resultsmentioning

confidence: 99%

Waste management beyond the COVID-19 pandemic: Bibliometric and text mining analyses

Ranjbari¹,

Esfandabadi²,

Gautam³

et al. 2023

Gondwana Research

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“…A low cost was found in the case of co-incineration of sterilized MW and municipal solid waste. These findings by Zhao et al [93] indicate that pyrolysis incineration is the most advantageous method regarding the economic aspect, while plasma melting has the highest operating cost. Heat from waste is not utilized efficiently enough because of the lack of appropriate methods of heat energy recovery.…”

Section: Energy Fuels and Materials Produced By Medical Waste Treatmentmentioning

confidence: 95%

“…According to Zhao et al [93], MW has increased due to the COVID-19 pandemic and has stimulated high interest in MW treatment/disposal. Additionally, the recovery of MW energy is mandatory in order to achieve higher heating value (HHV).…”

Section: Medical Waste Handlingmentioning

confidence: 99%

“…The MWTTs energy recovery efficiencies (EREs) and impact on the environment can be estimated [93]. MWTTs such as incineration (rotary kiln or pyrolysis), plasma melting, and sterilization (steam or microwave), were studied using energy recovery analysis (ERA), LCA, and life cycle costing (LCC) methods.…”

Section: Energy Fuels and Materials Produced By Medical Waste Treatmentmentioning

confidence: 99%

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Medical Waste Treatment Technologies for Energy, Fuels, and Materials Production: A Review

2021

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The importance of medical waste management has grown during the COVID-19 pandemic because of the increase in medical waste quantity and the significant dangers of these highly infected wastes for human health and the environment. This innovative review focuses on the possibility of materials, gas/liquid/solid fuels, thermal energy, and electric power production from medical waste fractions. Appropriate and promising treatment/disposal technologies, such as (i) acid hydrolysis, (ii) acid/enzymatic hydrolysis, (iii) anaerobic digestion, (vi) autoclaving, (v) enzymatic oxidation, (vi) hydrothermal carbonization/treatment, (vii) incineration/steam heat recovery system, (viii) pyrolysis/Rankine cycle, (ix) rotary kiln treatment, (x) microwave/steam sterilization, (xi) plasma gasification/melting, (xii) sulfonation, (xiii) batch reactor thermal cracking, and (xiv) torrefaction, were investigated. The medical waste generation data were collected according to numerous researchers from various countries, and divided into gross medical waste and hazardous medical waste. Moreover, the medical wastes were separated into categories and types according to the international literature and the medical waste fractions’ percentages were estimated. The capability of the examined medical waste treatment technologies to produce energy, fuels, and materials, and eliminate the medical waste management problem, was very promising with regard to the near future.

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“…The furnace rotates around its axis with a rotational speed in the range of 0.25-4.5 revolutions/minute. In the case of thermal processing of waste, the rotary kiln most often carries out the incineration of hazardous waste [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Optimization and Security of Hazardous Waste Incineration Plants with the Use of a Heuristic Algorithm

Wajda

Jaworski

2021

Sensors

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The amount of generated waste, which increases every year, is a serious problem of the modern world. In particular, attention should be paid to hazardous waste and methods of its disposal. One of the most used in this context is thermal treatment in dedicated incinerators equipped with a rotary kiln. Conducting the process requires, inter alia, supplying the furnace with a batch of batch material with appropriate parameters. Improper operation in this regard may cause negative environmental effects and operational problems. The key here is to select different types of hazardous waste and compose batch portions. The paper presents an application that optimizes the work of waste incineration plant operators. At the same time, this tool can be described as ensuring security at this stage of the process. The application implements an ant colony algorithm that selects the optimal solution to the problem, which has been formulated here as the types and masses of the batch mixture components with given parameters. The application has been tested in the laboratory and real conditions with satisfactory results.

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Energy, environment and economy assessment of medical waste disposal technologies in China

Cited by 76 publications

References 31 publications

Waste management beyond the COVID-19 pandemic: Bibliometric and text mining analyses

Waste management beyond the COVID-19 pandemic: Bibliometric and text mining analyses

Medical Waste Treatment Technologies for Energy, Fuels, and Materials Production: A Review

Optimization and Security of Hazardous Waste Incineration Plants with the Use of a Heuristic Algorithm

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