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PubMed2004

[Health services waste management: a biosafety issue].

The subject of "health services waste" is controversial and widely discussed. Biosafety, the principles of which include safeguarding occupational health, community health, and environmental safety, is directly involved in the issue of medical waste management. There are controversies as to the risks posed by medical waste, as evidenced by diverging opinions among authors: some advocate severe approaches on the basis that medical waste is hazardous, while others contend that the potential for infection from medical waste is nonexistent. The Brazilian National Health Surveillance Agency (ANVISA) has published resolution RDC 33/2003 to standardize medical waste management nationwide. There is an evident need to implement biosafety procedures in this area, including heath care workers' training and provision of information to the general population.

Communicable Diseases↗
PubMed2002

Public-private partnerships for solid waste management services.

The increasing cost of municipal solid waste (MSW) management has led local governments in numerous countries to examine if this service is best provided by the public sector or can better be provided by the private sector. Public-private partnerships have emerged as a promising alternative to improve MSW management performance with privately owned enterprises often outperforming publicly owned ones. In Lebanon, several municipalities are transforming waste management services from a public service publicly provided into a public service privately contracted. In this context, a regulated private market for MSW management services is essential. The present study examines a recent experience of the private sector participation in MSW management in the Greater Beirut Area. The results of a field survey concerning public perception of solid waste management are presented. Analysis of alternatives for private sector involvement in waste management is considered and management approaches are outlined.

Cities↗
PubMed2002

Hospital waste management and it's probable health effect: a lesson learned from Bangladesh.

A study was conducted to evaluate the current status of hospital waste management (HWM) in Bangladesh. The aim is to recognize the health effect of the existing practice, to determine the awareness level of doctors and nurses about hospital waste, to identify the weaknesses, and to provide suggestions for improvement. Hospital staff, waste pickers, and local residents were interviewed while in depth field observation, which included sample collection and laboratory analysis was also conducted. Through this investigation, it has been quite evident that a satisfactory hospital waste management system in government hospitals and several private clinics is severely lacking. At present, Bangladesh has no rigorous laws or regulation, which are enforced in this area. The waste is generally dumped together in a public place such as the hospital surroundings, the roadside or City Corporation dustbin. Many doctors and nurses are not fully aware about what constitutes as medical waste. Health care workers have only a basic understanding of health care and do not perceive handling or disposal of medial waste as a hazardous work. Laboratory analysis shows existing contamination of infectious agents in the environment. Some staff members interviewed were suffering from various kinds of infectious diseases such as viral hepatitis B/C, typhoid, skin disease/allergy, diarrhea, dysentery, tuberculosis, and malaria. During field observation it was discovered that improved HWM systems have only recently been introduced in a small number of private hospitals and clinics, some of which could be used as references to formulate guidelines for reaching the optimal at the national level. The study indicates that there is a need to improve the handling and disposal methods of hospital waste in almost all the available medical facilities. There are a few NGOs that have started awareness building and training on waste management for selected hospital staff and NGO officials. Based on the analysis of the situation, several suggestions and recommendations have been made to aid in the development of a waste management system.

Bangladesh↗
PubMed2004

Incineration of healthcare wastes: management of atmospheric emissions through waste segregation.

The amount of atmospheric pollutants emitted through the incineration of healthcare wastes can be estimated using emission factors. Emission factors have been published without including sufficient information about the types of wastes incinerated. This paper reports the first emission factors estimated for the incineration of wastes segregated into different types according to the Portuguese legislation. One controlled-air incinerator without air pollution control devices was used in the research. The main objectives of the study were: (i) to estimate the emission factors for particulate matter, dioxins, heavy metals and gaseous pollutants, according to the type of waste incinerated; (ii) to evaluate the quality of atmospheric emissions; and (iii) to define a methodology for the management of atmospheric emissions, evaluating the influence of type of waste incinerated and of the segregation method used on the emitted amounts. It was concluded that: (i) when emission factors are not associated with the type of incinerated mixture, the utility of the emission factors is highly doubtful; (ii) without appropriate equipment to control atmospheric pollution, incineration emissions exceed legal limits, neglecting the protection of human health (the legal limit for pollutant concentrations could only be met for NO(x), all other concentrations were higher than the maximum allowed: dioxins, 93-710 times; Hg, 1.3-226 times; CO, 11-24 times; SO(2), 2-5 times; and HCl, 9-200 times); (iii) rigorous segregation methodologies must be used to minimize atmospheric emissions, and incinerate only those wastes that should be incinerated according to the law. A rigorous segregation program can result in a reduction of the amount of waste that should be incinerated by 80%. A reduction in the quantity of waste incinerated results in a reduction on the amounts of pollutants emitted: particulate matter, 98%; dioxins, 99.5%; As, Cd, Cr, Mn and Ni, respectively, 90%, 92%, 84%, 77% and 92%; Hg and Pb, practically eliminated; SO(2) and NO(x), 93%; and CO and HCl, more than 99%.

Air Pollution↗
PubMed2002

Using multiple criteria decision analysis for supporting decisions of solid waste management.

Design of solid-waste management systems requires consideration of multiple alternative solutions and evaluation criteria because the systems can have complex and conflicting impacts on different stakeholders. Multiple criteria decision analysis (MCDA) has been found to be a fruitful approach to solve this design problem. In this paper, the MCDA approach is applied to solve the landfill selection problem in Regina of Saskatchewan Canada. The systematic approach of MCDA helps decision makers select the most preferable decision and provides the basis of a decision support system. The techniques that are used in this study include: 1) Simple Weighted Addition method, 2) Weighted Product method, 3) TOPSIS, 4) cooperative game theory, and 5) ELECTRE. The results generated with these methods are compared and ranked so that the most preferable solution is identified.

Decision Support Techniques↗
PubMed2004

Bio-medical waste management in the U.T., Chandigarh.

Investigations were carried out to assess the generation and disposal of biomedical waste in the various medical establishments in the urban and rural areas of the U.T. Chandigarh. It was found that there were 474 medical establishments in the U.T., Chandigarh including Nursing Homes, Clinics, Dispensaries, Pathological labs., Hospitals, Veterinary Institutions and Animal houses. The total quantity of bio-medical waste generated in Chandigarh is 811.35 kg/day and the rate of generation of bio-medical waste varies from 0.06 kg/day/bed to 0.25 kg/day/bed. Though the major hospitals are equipped with incinerators, proper bio-medical waste management system is yet to be implemented. The medical establishments in the rural area and smaller ones in the urban area dispose off their bio-medical waste along with municipal solid waste and no waste management system exists. It is recommended that an integrated waste management plan using the three incinerators installed at the major hospitals can safely dispose off the total bio-medical waste generated in the city.

Health Facilities↗
PubMed1989

AVMA guide for veterinary medical waste management.

Lawmakers have enacted a variety of laws and regulations to ensure proper disposal of certain potentially infectious or otherwise objectionable waste. The veterinary medical profession supports scientifically based regulations that benefit public health. In 1988, Congress passed the Medical Waste Tracking Act, a federal program that mandates tracking certain regulated waste. Several types of waste generated in the typical clinical veterinary medical practice are considered regulated veterinary medical waste. Discarded needles, syringes, and other sharps; vaccines and vials that contained certain live or attenuated vaccines; cultures and stocks of infectious agents and culture plates; research animals that were exposed to agents that are infectious to human beings and their associated waste; and other animal waste that is known to be potentially harmful to human beings should be handled as regulated veterinary medical waste. Regulated veterinary medical waste should be handled with care. It should be decontaminated prior to disposal. The most popular, effective methods of decontamination are steam sterilization (autoclaving) and incineration. Chemical decontamination is appropriate for certain liquid waste. Waste should be packaged so that it does not spill. Sharps require rigid puncture- and leak-resistant containers that can be permanently sealed. Regulated veterinary medical waste that has not been decontaminated should be labeled with the universal biohazard symbol. Generators retain liability for waste throughout the entire disposal process. Therefore, it is essential to ensure that waste transporters and disposal facilities comply with state and federal requirements. Veterinary practices should maintain a written waste management program and accurate records of regulated veterinary medical waste disposal. Contingency planning and staff training are other important elements of a veterinary medical waste management program. The guide includes a model veterinary medical waste management program; however, it does not address all the variations in state and local regulations. Veterinarians should obtain copies of state and local laws and regulations and modify AVMA's model plan to create an individualized practice plan that complies with federal, state, and local laws and regulations. State and local veterinary medical organizations should monitor state and local regulation to influence decisions that affect veterinarians and to keep their members informed of changing requirements. Veterinarians and veterinary medical organizations must stay involved so that regulations do not unfairly burden the veterinary medical profession.

Directories as Topic↗
PubMedDate not supplied

[Public and occupational health aspects related to municipal solid waste management].

Based on a literature review, the paper calls attention to public and occupational health problems related to poor municipal solid waste management resulting from a development model that views environmental protection, public health, and workers' health as secondary issues. The authors emphasize the need for research to support a new waste management model highlighting the importance of environmental preservation and protection of human health, in addition to suggesting measures to achieve such goals. The discussion aims to incorporate solid waste management into the public health agenda.

Accidents, Occupational↗
PubMedDate not supplied

Amalgam waste management: issues and answers.

In reviewing U.S. dental amalgam waste management activities, one finds a wide variety of approaches, processes, and results, within which the authors have observed an inconsistency of definitions, measurements, standards, and even of clearly applied goals. As a result, outcomes have varied greatly from community to community. This manuscript attempts to deliver logical options which might prevail even within an atmosphere of differing perspectives. The authors share the belief that successful outcomes are achievable within a collaborative environment of shared learning and cooperative planning. By example, the authors attempt to demonstrate how the joint acceptance of certain definitions and goals has served as a pathway to success in one community's dental waste management project. The goal of this paper is to share tools that may contain some measure of applicability to other similar collaborations.

Conservation of Natural Resources↗
PubMed1984

Radionuclide concentrations in mule deer with reference to waste-management ponds on the Hanford Site.

A comparison was made between the amount of time 17 radio-collared mule deer (Odocoileus hemionus) spent near low-level waste-management ponds on the Hanford Site and the levels of radionuclides found in samples of their muscle, liver, bone and rumen contents. All deer had low, but detectable, amounts of 137Cs in their muscle, liver and rumen contents and 90Sr in their bone. Several other radionuclides were detected in the rumen samples, but were apparently not incorporated into the muscle and liver tissue. There was a positive, significant correlation between the amount of time deer spent near the waste-management ponds and the levels of 137Cs in their muscle and liver and 90Sr in their bone. The concentrations of 137Cs in rumen samples did not appear to be related to the amount of time deer spent near waste-management ponds. The variability of 137Cs in muscle was higher in those deer living near the waste-management ponds than in individuals residing in areas remote from the ponds. In general, the levels of radionuclides in Hanford Site deer appear to be reduced from that observed in the 1960s.

Animals↗
PubMed2006

Revolutionary advances in medical waste management. The Sanitec system.

It is the purpose of this collective review to provide a detailed outline of a revolutionary medical waste disposal system that should be used in all medical centers in the world to prevent pollution of our planet from medical waste. The Sanitec medical waste disposal system consists of the following seven components: (1) an all-weather steel enclosure of the waste management system, allowing it to be used inside or outside of the hospital center; (2) an automatic mechanical lift-and-load system that protects the workers from devastating back injuries; (3) a sophisticated shredding system designed for medical waste; (4) a series of air filters including the High Efficiency Particulate Air (HEPA) filter; (5) microwave disinfection of the medical waste material; (6) a waste compactor or dumpster; and (7) an onboard microprocessor. It must be emphasized that this waste management system can be used either inside or outside the hospital. From start to finish, the Sanitec Microwave Disinfection system is designed to provide process and engineering controls that assure complete disinfection and destruction, while minimizing the operator's exposure to risk. There are numerous technologic benefits to the Sanitec systems, including environmental, operational, physical, and disinfection efficiency as well as waste residue disinfection. Wastes treated through the Sanitec system are thoroughly disinfected, unrecognizable, and reduced in volume by approximately 80% (saving valuable landfill space and reducing hauling requirements and costs). They are acceptable in any municipal solid waste program. Sanitec's Zero Pollution Advantage is augmented by a complete range of services, including installation, startup, testing, training, maintenance, and repair, over the life of this system. The Sanitec waste management system has essentially been designed to provide the best overall solution to the customer, when that customer actually looks at the total cost of dealing with the medical waste issue. The Sanitec system is the right choice for healthcare and medical waste professionals around the world.

Equipment Design↗
PubMed1995

Survey of food-related waste management practises in New Brunswick health establishments.

A survey was conducted jointly by Université de Moncton and the New Brunswick (N.B.) Department of Health and Community Services to generate information on waste management practises within health care institutions. The objectives of the survey were: 1) to identify the type of waste management methods in place in N.B. health establishments; 2) to identify the major difficulties associated with recycling food-related waste; 3) to study the attitudes and beliefs of food service managers toward waste management. Data were collected through a questionnaire mailed to food service managers. Results indicated that 86% of establishments were involved in waste reduction. There were no statistically significant differences in reduction practices between hospitals and nursing homes or between the size of these establishments (P = 0.11). The same applied for reutilization (P = 0.09) where 93% of the establishments were involved. Recycling was carried out in 64.8% of the establishments. Major obstacles to recycling included the lack of pickup services, the lack of storage space, and the absence of buyers for recyclable materials. The results of this survey will help in the formulation of policies, strategies, and recommendations for better protection of the environment.

Conservation of Natural Resources↗
PubMed2005

Why energy from waste incineration is an essential component of environmentally responsible waste management.

This paper outlines the key factors involved in adopting energy from waste incineration (EfWI) as part of a waste management strategy. Incineration means all forms of controlled direct combustion of waste. 'Emerging' technologies, such as gasification, are, in the author's view, 5 to 10 years from proven commercial application. The strict combustion regimen employed and the emissions therefrom are detailed. It is shown that EfWI merits consideration as an integral part of an environmentally responsible and sustainable waste management strategy, where suitable quantities of waste are available.

Air Pollutants↗
PubMed2006

Siting and routing assessment for solid waste management under uncertainty using the grey mini-max regret criterion.

Solid waste management (SWM) is at the forefront of environmental concerns in the Lower Rio Grande Valley (LRGV), South Texas. The complexity in SWM drives area decision makers to look for innovative and forward-looking solutions to address various waste management options. In decision analysis, it is not uncommon for decision makers to go by an option that may minimize the maximum regret when some determinant factors are vague, ambiguous, or unclear. This article presents an innovative optimization model using the grey mini-max regret (GMMR) integer programming algorithm to outline an optimal regional coordination of solid waste routing and possible landfill/incinerator construction under an uncertain environment. The LRGV is an ideal location to apply the GMMR model for SWM planning because of its constant urban expansion, dwindling landfill space, and insufficient data availability signifying the planning uncertainty combined with vagueness in decision-making. The results give local decision makers hedged sets of options that consider various forms of systematic and event-based uncertainty. By extending the dimension of decision-making, this may lead to identifying a variety of beneficial solutions with efficient waste routing and facility siting for the time frame of 2005 through 2010 in LRGV. The results show the ability of the GMMR model to open insightful scenario planning that can handle situational and data-driven uncertainty in a way that was previously unavailable. Research findings also indicate that the large capital investment of incineration facilities makes such an option less competitive among municipal options for landfills. It is evident that the investment from a municipal standpoint is out of the question, but possible public-private partnerships may alleviate this obstacle.

Computer Simulation↗
PubMed2006

Recovery and recycling practices in municipal solid waste management in Lagos, Nigeria.

The population of Lagos, the largest city in Nigeria, increased seven times from 1950 to 1980 with a current population of over 10 million inhabitants. The majority of the city's residents are poor. The residents make a heavy demand on resources and, at the same time, generate large quantities of solid waste. Approximately 4 million tonnes of municipal solid waste (MSW) is generated annually in the city, including approximately 0.5 million of untreated industrial waste. This is approximately 1.1 kg/cap/day. Efforts by the various waste management agencies set up by the state government to keep its streets and neighborhoods clean have achieved only minimal success. This is because more than half of these wastes are left uncollected from the streets and the various locations due to the inadequacy and inefficiency of the waste management system. Whilst the benefits of proper solid waste management (SWM), such as increased revenues for municipal bodies, higher productivity rate, improved sanitation standards and better health conditions, cannot be overemphasized, it is important that there is a reduction in the quantity of recoverable materials in residential and commercial waste streams to minimize the problem of MSW disposal. This paper examines the status of recovery and recycling in current waste management practice in Lagos, Nigeria. Existing recovery and recycling patterns, recovery and recycling technologies, approaches to materials recycling, and the types of materials recovered from MSW are reviewed. Based on these, strategies for improving recovery and recycling practices in the management of MSW in Lagos, Nigeria are suggested.

Cities↗
PubMedDate not supplied

Awareness and training need of biomedical waste management among undergraduate students, Andhra Pradesh.

Total 463 undergraduate students (216 males & 247 females) of ASRAM medical college of Andlira Pradesh were surveyed regarding awareness about biomedical waste management. Most of the students have heard about biomedical waste. Some of them were aware that it causes health hazards. But knowledge about category of wastes, duration of waste storage, responsibility of waste, type of bags used for collection, identification of Biohazard symbol was poor. Awareness of Biomedical waste. management and Handling rule 1998 was also poor. There were gaps in various aspects of Biomedical waste management among medical students. Appropriate training or inclusion of a topic in undergraduate medical curriculum can fulfill this.

Awareness↗
PubMed1993

Radioactive waste management at a large university and medical research complex.

A radioactive waste management program was developed for a large university and medical research complex to contain costs and to reduce the impact of the Low-Level Radioactive Waste Policy Act. The program takes advantage of decay-in-storage, incineration, special packaging techniques, and increased training and awareness. A series of metrics are presented to evaluate the effectiveness of the radioactive waste management program. Through the use of this program the amount of waste disposed of at commercial burial sites decreased from 98% to 1.61% of the waste generated. At the same time the volume of waste generated per laboratory declined by almost 45%, from 0.35 m3 (12.31 ft3) to 0.19 m3 (6.80 ft3).

Academic Medical Centers↗
PubMed2001

An integrated programme for municipal solid waste management.

A mathematical model is used in planning an integrated programme for the management of municipal solid waste to solve an economical optimisation problem and allow preliminary decisions to be made at the operational planning phase. The model, based on networks depicting the municipal solid waste management cycle, is simple to apply and furnishes easily assimilated results that facilitate management choices. Its application in an optimised area within the Regione Campania in Italy demonstrates how it may be used to evaluate the economic advantages pertaining to different municipal solid waste collection and treatment options.

Conservation of Natural Resources↗