Medical Waste Disposal Research Articles

Poor COVID 19 Pandemic Waste Management Outcome in Nigeria: A Possible Potential Public Health Threat and Promoter of Community Transmission

Introduction The COVID-19 pandemic outcome which is an emerging infectious disease that potentially originated from Wuhan in China has seen an upsurge of cases and deaths globally over time. One of the consequences found in the course of the management of these viral pandemic involves the massive production and usage of different myriad of medical supplies to meet up the increasing demands by health workers, patients and the public. This trend has resulted in the proliferation of medical wastes against a backdrop of poor waste management outcome especially in Nigeria. Aim The aim of this article borders on bringing to light the effects of improperly managed medical wastes, and the risks it poses to human health and the environment at large. Furthermore also, to outline various types of medical wastes and the guidelines associated with their disposal, especially those associated with management of COVID-19 pandemic saga. Method/Methodology The study approach follows the systematic review of peer-reviewed published articles as well as online publications and articles derived from various databases with search keywords relevant to the topic of discourse. Findings and Results Findings from this study show that the coronavirus disease of 2019 has spread widely globally with massive socio-economic and socio-cultural consequences. Over time there has been a progressive increase in cases and deaths due to Covid-19 in Nigeria and most other countries. The management of COVID-19 pandemic has resulted in the proliferation of medical wastes. Medical wastes are those generated from the use of medical supplies in the course of healthcare delivery and disease prevention such as hand gloves, facemasks, and hazmat suits etc. Medical wastes legislations that support the proper disposal of medical wastes in Nigeria and most other developing nations have been very weak and have failed to achieve the desired results, with high incidences of infectious diseases such as HIV and Hepatitis still being transmitted through improperly disposed of wastes. Therefore improperly waste disposal may probably serve as a very potent means of community transmission of COVID-19 transmission, if not handled in good time especially the freshly disposed materials Conclusion and Recommendation While the generation of massive wastes is being seen in this COVID-19 pandemic period, it may be unavoidable that there could be re-infection of subjects from improper medical waste disposal strategies. Thus, it is pertinent that relevant regulations are put in place, enforced and monitored to ensure that improperly managed wastes do not form another avenue for widespread of the virus in our communities. It is also very necessary to organize massive campaigns aimed at creating enough public awareness of the risks associated with medical wastes and on the need for proper disposal especially COVID 19 associated waste materials.

Face mask and medical waste disposal during the novel COVID-19 pandemic in Asia

The origin of the novel human coronavirus (SARS-CoV-2) and its potential for harm increased face mask and medical waste in the environment, thereby necessitating the urgent prevention and control of the pandemic. The article estimates the face mask and medical waste generation in Asia during the pandemic to convince the waste management and scientific communities to find ways to address the negative impact that the waste disposal has on the environment. Standardisation, procedures, guidelines and strict implementation of medical waste management related to COVID-19, community habitats and public areas should be carefully considered to reduce pandemic risks in hospitals, as proper medical waste disposal effectively controls infection sources.

Development of Environmentally Friendly Technologies for Pyrolysis of Organic Compounds

One of the priority scientific areas for many years at the Krzhizhanovsky Power Engineering Institute (ENIN) has been studying the processing of low-grade solid fuels with the production of valuable lighter hydrocarbons in demand in the energy and chemical industries. From 1970–1990 with the direct participation of the institute’s staff, a technology was developed and mastered on an industrial scale for the processing of oil shale using solid coolant. The article shows that ENIN created a serious scientific basis and developed methods for studying the thermal decomposition of low-grade fuels in their various modifications, which allows them to be used for experimental studies into the processing of a wide range of organic materials. Information is provided on the results of studies at the ENIN full-scale experimental stand on the creation of a new technology based on the pyrolysis of organic compounds (low-grade fuels) with the rationale for its use for solving the urgent task of class B and C waste disposal. The circuit diagram is described in detail and the experimental stand’s main components playing a key role in the technological process of environmentally friendly disposal of medical waste (MW) are described. Much attention is paid to the issue of quenching (high-speed cooling) of exhaust gases, which plays a major role in preventing the secondary formation of dioxins. Calculation of the quenching device in the ANSYS Fluent software environment is verified using experimental data. The results of the experiments showed that the measured concentration of dioxins and furanes in the exhaust gases obtained at the ENIN experimental stand during its operation on a typical model mixture of medical waste without the use of special gas purification agents amounted to 0.03 I-TEQ (I‑TEQ—dioxin equivalent) under normal conditions at a concentration of O2 equal to 11%, which is lower than the European standard (0.1 I-TEQ).

Monitoring Method of Internet of Things for Classified Recovery of Medical Waste

In order to overcome the shortcomings of the existing technology and hit the medical waste disposal of black industry chain, this paper provides an IoT monitoring method for medical waste treatment, which can strictly monitor medical waste from the source, processing by digital, back in any link problems, the use of big data to find abnormal problems, guide the development of medical enterprise, to ensure the safety of people’s life.

Legal and economic problems of improvement of the control system of the medical waste

Introduction. The article is devoted to the current problem of regional development - to the address with the waste of medical origin and the creation of a control system of medical waste as an element of internal quality control and safety of the medical activity. Functioning of a control system of medical waste and ensuring introduction in the medical organizations of progressive, cost-effective methods of hardware disinfecting of dangerous medical waste in the epidemiological relation are the priority factors forming the level of population health of the population of Russia. Safe utilization - the key direction of functioning of a system of the address of medical waste - at the same time the potential epidemiological and ecological danger determines the need of legal and financial and economic support of a control system of medical waste, both on federal, and at the regional level. Creation of environmentally friendly ways of the address with medical waste, effective management of these processes, their legal support belongs to the system of ensuring national security.Material and methods. Authors carried out the analysis of current state of the address with medical waste in a number of regions of the Russian Federation, application of an integrated approach to utilization and neutralizations of waste of this type within regional environmental policy is reasoned. Gaps of legal regulation of a control system of medical waste on the basis of the analysis of law-enforcement practice are revealed. A methodical approach is proposed, the peculiarity of which is the legal and financial justification of the territorial schemes used in the regions for the treatment of medical waste. The methodological tools of the study include statistical methods of processing data on the disposal and disposal of medical waste. Approbation of methodical tools is carried out on the example of the Moscow region.Results. The Moscow region pays close attention to the methods of medical waste management, the desire to ensure environmental safety, preventing the violation of the law in matters of disposal of medical waste. On the other hand, low satisfaction of the authorities with the pace of solving the problem of recycling, not included in the process of medical activity of health care institutions, the consequences of which may be medical waste requiring disinfection and treatment. The result of the study are recommendations of the need for interregional interaction in the field of placement and construction of complexes on processing, utilization, and neutralization of medical waste of different hazard classes.Conclusion. Authors consider the perspective direction of scientific and technological development creation of the hi-tech equipment for utilization of different types of medical waste with receiving secondary raw materials and also neutralization of extremely hazardous and highly hazardous medical waste.

Path Optimization of Medical Waste Transport Routes in the Emergent Public Health Event of COVID-19: A Hybrid Optimization Algorithm Based on the Immune-Ant Colony Algorithm.

In response to the emergent public health event of COVID-19, the efficiency of transport of medical waste from hospitals to disposal stations is a worthwhile issue to study. In this paper, based on the actual situation of COVID-19 and environmental impact assessment guidelines, an immune algorithm is used to establish a location model of urban medical waste storage sites. In view of the selection of temporary storage stations and realistic transportation demand, an efficiency-of-transport model of medical waste between hospitals and temporary storage stations is established by using an ant colony–tabu hybrid algorithm. In order to specify such status, Wuhan city in Hubei Province, China—considered the first city to suffer from COVID-19—was chosen as an example of verification; the two-level model and the immune algorithm–ant colony optimization–tabu search (IA–ACO–TS) algorithm were used for simulation and testing, which achieved good verification. To a certain extent, the model and the algorithm are proposed to solve the problem of medical waste disposal, based on transit temporary storage stations, which we are convinced will have far-reaching significance for China and other countries to dispatch medical waste in response to such public health emergencies.

Managing Soils for Recovering from the COVID-19 Pandemic

The COVID-19 pandemic has disrupted the global food supply chain and exacerbated the problem of food and nutritional insecurity. Here we outline soil strategies to strengthen local food production systems, enhance their resilience, and create a circular economy focused on soil restoration through carbon sequestration, on-farm cycling of nutrients, minimizing environmental pollution, and contamination of food. Smart web-based geospatial decision support systems (S-DSSs) for land use planning and management is a useful tool for sustainable development. Forensic soil science can also contribute to cold case investigations, both in providing intelligence and evidence in court and in ascertaining the provenance and safety of food products. Soil can be used for the safe disposal of medical waste, but increased understanding is needed on the transfer of virus through pedosphere processes. Strengthening communication between soil scientists and policy makers and improving distance learning techniques are critical for the post-COVID restoration.

Investigation on and Protective Measures and Exposure Risks for the People Related to Medical Waste Disposal during the COVID-19 Epidemic

During the COVID-19, the production of medical waste increased sharply, which brought a challenge to the capacity of China's medical waste disposal and the protection of the group that received, transported and disposed of medical waste In order to study the potential risks and protection measures against exposure for the workers in the collection, transportation, temporary storage, and disposal of medical waste, ninety staff members from a typical medical waste disposal center in Zhejiang Province were selected as the research objects to study the personal protection level of staff in different types of work, as well as the influence of items or locations at risk of infection on their choice of protective measures The results show that among the 90 surveyed people, 98 9% of the staff wore medical respirators or full-face masks and half-masks during the work, 87 5% of the staff wore work clothes, 79 6% of the staff wore labor protection cap, 64 8% of workers chose to wear rubber gloves and protective boots for protection, and goggles (55 7%) and protective clothing (33 0%) were also worn when they were closely contact with medical waste At the end of a single task, 100% of the respondents chose to wash their hands with running water, soap, quick disinfectant or 0 3%-0 5% iodophor disinfectant or bathe, and 94 3% of the respondents disinfected their personal work items;all respondents would take protective measures such as washing hands, disinfecting items, ventilating after returning home The personal protection measures taken by different staff were mainly related to the items or locations that were exposed to risk of infection during the work process Among them, the staff who were in contact with high-risk items, turnover containers (barrels) or the outer surface and inner wall of disposable packaging containers were more inclined to a higher level of protective measures This research indicates that there is a significant difference between the qualified rate of protection and the type of work for the staff in this survey (P0 05) In the future, more detailed and specific policies and regulations should be formulated, and the management and training of the employees should be strengthened to increase their awareness of prevention and reduce the risk of occupational exposure © 2020, Editorial Board, Research of Environmental Sciences All right reserved

A Bi-level Meta-heuristic Approach for a Hazardous Waste Management Problem

This study concentrates on designing a medical waste management system with a hierarchical structure, including a local government and a waste management planner. The upper-level seeks to design and control the waste management facilities by minimizing the environmental risks related to the disposal of medical waste. While, the lower-level model is to determine the waste collection plans by only minimizing its total operational costs. Therefore, this study develops a bi-level mathematical model, in which the benefits of the both stakeholders are taken into account. As this problem poses difficulty in searching for the optimal solution, a bi-level meta-heuristic approach based on the Genetic Algorithm (GA) is employed for solving the problem. Finally, a case study is conducted to show that the proposed model and solution approach are practical and efficient.

, , , , ,

Introduction: Needlestick injuries (NSIs) are one of the most frequent routes of the transmission of bloodborne pathogens in health care settings and the substantial source of occupationally acquired bloodborne infections. They remain a significant problem for developing countries that lack the ability to implement more reliable technologies and available guidance because of the economic situation. The objectives of the study were to determine the frequency of NSIs among healthcare workers (HCWs) and supporting staff in primary health care, to investigate the factors that caused these injuries and to evaluate a set of implemented guides. Methods: A retrospective study of the Department of infection control records of NSIs between January 2003 and January 2016 was conducted. Incidence proportion (rate of injury risk) was calculated for each profession with reported NSIs. Results: A total of 156 NSIs and sharp injuries were reported to the Department of infection control during the 12-year period. Among the group of HCWs, medical nurses/technicians (54.49%) were the most common injured workers, and the lowest numbers were reported by a physical therapist and dental technicians (0.64%). In a total number of cases, support staff accounted for 16.67%. The most incidents occurred during the use of needles, in 146 (90.6%) cases. Calculated incidence proportion for medical doctors is 0.24%, 5.33% for dentists, and 13.8% for medical and dental nurses/technicians and laboratory technicians. For support staff, the calculated rate is 6.04%. Conclusions: At the primary health care level, the NSIs frequency among all employee profiles is lower and it is suggesting the possibility of underreporting cases. Healthcare facility management should consider introducing new and more reliable technologies to reduce the number of NSIs especially among nurses/technicians, laboratory technicians, and cleaning staff. Additional training and preventive measures should be directed towards the proper disposal of medical waste. Management of the Institution presented engagement to prevent the occurrence of NSIs, and it is a positive example for all countries in transition.

Medical waste management practice during the 2019-2020 novel coronavirus pandemic: Experience in a general hospital

It is currently a critical period for the prevention and control of the COVID-19 pandemic. Since the medical waste disposal could be an important way to control the source of infection, standardization, and strict implementation of the management of COVID-19 related medical waste should be with careful consideration to reduce the risk of epidemic within hospitals. This study illustrates the practice of medical waste disposal responding to the 2019-2020 novel coronavirus pandemic.

Suggested guidelines for emergency treatment of medical waste during COVID-19: Chinese experience.

During the period of COVID-19, the medical waste disposal capacity is seriously inadequate. The main technical process of the municipal solid waste incineration system is the same as that of the medical waste incineration system. Under the conditions of optimizing the technological process, improving the supporting facilities, and controlling the co-processing ratio, the municipal solid waste incinerator (grate furnace) co-processing medical waste is feasible. Some suggested guidelines for emergency treatment of medical waste from COVID-19 have been provided by China.

A Soft-Path Solution to Risk Reduction by Modeling Medical Waste Disposal Center Location-Allocation Optimization.

The risk of medical waste pollution and huge demand of daily medical waste disposal pose great difficulties to medical waste management. Establishing medical waste disposal centers (MWDCs) is considered one of the ways to reduce the environmental and public risk of medical waste pollution. However, how to serve the medical waste disposal demand in optimal MWDCs' locations is a key challenge due to the complexity of the whole system and relationships among stakeholders. This article develops a soft-path solution for reducing risks as well as mitigating the related costs by optimizing the MWDC location-allocation problem. A risk mitigation-oriented bilevel equilibrium optimization model is developed for modeling the Stackelberg game behavior between the local government and the medical institutions. The objectives of the local government are minimizing the total risk of loss, the subsidy costs, and the investment cost of building the MWDCs, while minimizing the disposal and transportation costs are the objectives at the medical institution level. Fuzzy random variables are introduced by combining insufficient historical data with expert knowledge via consulting surveys to describe the coexisting uncertainties in the data. To solve the model, a hybrid approach combined with the interactive fuzzy programming technique and an Entropy-Boltzmann selection-based genetic algorithm are designed and tested. The Chengdu Medical Waste Disposal Centers Planning Project is used as a practical application. The results show that it is possible to achieve a balanced market with higher economic efficiency and significantly reduced risk through an appropriate principle of interactive actions between the bilevel stakeholders.

Spinal surgery and related management on patients with COVID-19: experience of a regional medical centre in Wuhan.

During the pandemic of COVID-19, some patients with COVID-19 may need emergency surgeries. As spine surgeons, it is our responsibility to ensure appropriate treatment to the patients with COVID-19 and spinal diseases. A protocol for spinal surgery and related management on patients with COVID-19 has been reviewed. Patient preparation for emergency surgeries, indications, and contraindications of emergency surgeries, operating room preparation, infection control precautions and personal protective equipments (PPE), anesthesia management, intraoperative procedures, postoperative management, medical waste disposal, and surveillance of healthcare workers were reviewed. It should be safe for surgeons with PPE of protection level 2 to perform spinal surgeries on patients with COVID-19. Standardized and careful surgical procedures should be necessary to reduce the exposure to COVID-19.

Spinal surgery and related management on patients with COVID-19: experience of a regional medical centre in Wuhan

During the pandemic of COVID-19, some patients with COVID-19 may need emergency surgeries. As spine surgeons, it is our responsibility to ensure appropriate treatment to the patients with COVID-19 and spinal diseases. A protocol for spinal surgery and related management on patients with COVID-19 has been reviewed. Patient preparation for emergency surgeries, indications, and contraindications of emergency surgeries, operating room preparation, infection control precautions and personal protective equipments (PPE), anesthesia management, intraoperative procedures, postoperative management, medical waste disposal, and surveillance of healthcare workers were reviewed. It should be safe for surgeons with PPE of protection level 2 to perform spinal surgeries on patients with COVID-19. Standardized and careful surgical procedures should be necessary to reduce the exposure to COVID-19.

Characteristics of the antibiotic resistance genes in the soil of medical waste disposal sites

The inappropriate disposal of medical waste allows bacteria to acquire antibiotic resistance, which results in a threat to public health. Antibiotic resistance gene (ARG) profiles were determined for 45 different soil samples containing medical waste and 15 nearby soil samples as controls. Besides physical and chemical analyses (i.e., dry matter content, pH value, and metal content), the genomes of microorganisms from the soil samples were extracted for high-throughput sequencing. ARG abundances of these samples were obtained by searching the metagenomic sequences against the antibiotic resistance gene database and the copies of ARGs per copy of the 16S rRNA gene at different levels were assessed. The results showed medical waste accumulation significantly enriched the contents of Cu, Cr, Pb, and As in the tested soil samples. Compared to the controls, the samples collected from areas containing medical waste were significantly enriched (p < 0.05, t-test) with ARGs annotated as sulfonamide and multidrug resistance genes, and in particular, the subtypes sul1 and sul2 (sulfonamide resistance genes), and multidrug_transporter (multidrug resistance gene). Moreover, the ARGs of the samples from the polluted areas were more diverse than those of the control samples (p < 0.05, t-test). The comparatively higher abundance and diversity of ARGs in contaminated soil pose a potential risk to human health.

HUBUNGAN MOTIVASI PERAWAT DAN GAYA KEPEMIMPINAN DENGAN PERILAKU PERAWAT DALAM PEMBUANGAN SAMPAH MEDIS BENDA TAJAM DI RSUD DR.A.DADI TJOKRODIPO KOTA BANDAR LAMPUNG

Introduction: sharp medical waste is not only able to cause scratch and stab wounds but also to infect wounds when they are contaminated by pathogen. A pre-survey result done by the researcher in wards of dr. A. Dadi Tjokrodipo at 20 January 2019 to 10 nurses concerning activities of nursing care and medicla waste management including needle, syringe, and bandage that were disposed without sorting.Objective: the objective of this research was to find out the correlations of nurse’s motivation and leadership style to nurse’s behavior in sharp medical waste disposal in dr. A. Dadi Tjokrodipo public hospital in Bandar Lampung. Method: this was a quantitative analytic survey research by using cross sectional approach and it was conducted in dr. A. Dadi Tjokrodipo public hospital from March to April 2019. Population was all nurses and samples were of total sampling. Data were collected by using questionnaires and analyzed by using univariate (frequency distribution) and bivariate (chi square test) analyses.Result: there were 31 respondents (54.4%) with poor medical waste littering behavior, 34 respondents (59.6%) with low motivation, and 29 respondents (50.9%) with bad leadership style. There were correlations of nurse’s behavior (p-value 0.000; OR 11.70) and leadership style (p-value 0.012: OR 4.725) to sharp medical waste disposal in dr. A. Dadi Tjokrodipo public hospital in Bandar Lampung in 2019. Conclusion: there were correlations of nurse’s motivation and leadership style to nurse’s behavior in littering sharp medical waste in dr. A. Dadi Tjokrodipo public hospital in Bandar Lampung in 2019. The researcher expects nurse’s motivation improvement concerning medical waste disposal by joining training about effects of improper sharp medical waste disposal.Introduction: sharp medical waste is not only able to cause scratch and stab wounds but also to infect wounds when they are contaminated by pathogen. A pre-survey result done by the researcher in wards of dr. A. Dadi Tjokrodipo at 20 January 2019 to 10 nurses concerning activities of nursing care and medicla waste management including needle, syringe, and bandage that were disposed without sorting.Objective: the objective of this research was to find out the correlations of nurse’s motivation and leadership style to nurse’s behavior in sharp medical waste disposal in dr. A. Dadi Tjokrodipo public hospital in Bandar Lampung. Method: this was a quantitative analytic survey research by using cross sectional approach and it was conducted in dr. A. Dadi Tjokrodipo public hospital from March to April 2019. Population was all nurses and samples were of total sampling. Data were collected by using questionnaires and analyzed by using univariate (frequency distribution) and bivariate (chi square test) analyses.Result: there were 31 respondents (54.4%) with poor medical waste littering behavior, 34 respondents (59.6%) with low motivation, and 29 respondents (50.9%) with bad leadership style. There were correlations of nurse’s behavior (p-value 0.000; OR 11.70) and leadership style (p-value 0.012: OR 4.725) to sharp medical waste disposal in dr. A. Dadi Tjokrodipo public hospital in Bandar Lampung in 2019. Conclusion: there were correlations of nurse’s motivation and leadership style to nurse’s behavior in littering sharp medical waste in dr. A. Dadi Tjokrodipo public hospital in Bandar Lampung in 2019. The researcher expects nurse’s motivation improvement concerning medical waste disposal by joining training about effects of improper sharp medical waste disposal.

Penal Protection of Public Health from the Effects of Pollution in the UAE Federal Law

Abstract The UAE federal legislator is keen to protect the environment and its development by amending the Federal Environmental Protection and Development Law No. 24 of 1999, which provides for the penal protection of public health by criminalising any act that damages the quality of water, air and land, or generates excessive noise or mismanages the disposal of hazardous substances and medical wastes. The UAE Federal Law imposes penalties for all such violations, however without achieving the purpose of deterrence or punishment.

Management of solid waste in two hospitals in Baghdad-Iraq

This study was conducted to examine medical waste management practices in two governmental hospitals in Baghdad, which disposed of its medical waste by incineration. Simple observational, cross-sectional study was conducted as a case study approach of Baghdad Educational Hospital and Sheikh Zayed General Hospital, for the period from 28 Oct.2018 to 5 May 2019. The data were collected through a pre-designed questionnaire with a checklist. The study showed that segregation of the medical waste into hazardous and nonhazardous waste was done in both the hospitals. For nonhazardous waste, disposal through Municipal Corporation was conducted, while all other kind of medical wastes were burnt. Hospital waste segregation, collection, transportation & disposal practices were not in accordance with standard guidelines of the developed countries. A majority of medical solid waste in both the hospitals under study was mismanaged. The workers handling the transport, segregation, and disposal of waste were provided with gloves and masks along with other special equipment like leg protectors, boots and aprons. No color coded practices were observed in both hospitals. The janitors and sanitary staff were immunized against common communicable diseases. Our recommendation for further studies is to find alternatives and appropriate technologies for disposal of medical solid waste in Baghdad hospitals.

Effects of hospital-community-family trinity health education model on household disposal of insulin waste needles

Objective To conduct the integrated management of hospital, community and family for patients with insulin injection at home, in order to explore the influence of this trinity health education model on the knowledge of medical waste and the standard disposal of discarded needles. Methods The self-designed questionnaire was used to investigate the knowledge and disposal of medical waste in outpatients, and the causes were analyzed carefully after the problems were found. The hospital, community and family were timely communicated and fed back to the ward and community. After 1, 3 and 6 months of educational intervention, the disposal of insulin needles, the knowledge of medical waste and the recovery of sharp instrument boxes were observed. Results After 1, 3 and 6 months of health education, the final rate of insulin needles mixed into domestic waste was 51.8% (144/278), 15.1% (42/278) and 4.7% (13/278), respectively. Compared with the first result of 99.6% (277/278), the difference was statistically significant (χ2=173.046, 406.136, 502.346, P<0.01); The first survey found that the correct rate of responding to medical waste knowledge items was low. After health education for 1, 3 and 6 months, the correct rate of medical waste related knowledge items was significantly higher than that of the first survey, and the difference was statistically significant (OR=3.016-3 548.810; 95%CI 2.108-917.869, 4.315-19 777.062; χ2=25.180-524.895; P<0.01) ; After 1, 3 and 6 months of health education, the qualified rate of medical waste knowledge was 82.4% (229/278),75.9% (211/278) and 97.1% (270/278), respectively, which was significantly higher than the first result of 6.5% (18/278). The difference was statistically significant (χ2=324.328, 273.712, 453.832, P<0.01). The sharp box recovery of hepatitis B patients was relatively good. Conclusion Hospital-community-family Trinity health education model can improve the breadth and depth of education objects, not only can improve the knowledge of medical waste related to insulin injection patients at home, but also can improve the standardized disposal ability of insulin waste needles. With the passage of time, the effect of health education continues to be good. This integrated health education model is worth popularizing in clinic. Key words: Health education; Medical waste; Standard disposal