Simulating dairy liquid waste management options as a nitrogen source for crops

2005 ◽  
Vol 110 (3-4) ◽  
pp. 219-229 ◽  
Author(s):  
G.L. Feng ◽  
J. Letey ◽  
A.C. Chang ◽  
M. Campbell Mathews
1969 ◽  
Vol 2 (1) ◽  
pp. 105-110
Author(s):  
Bushra Iftikhar ◽  
Muhammad Jan ◽  
Khurshid Ahmad ◽  
Satea Arif

Objectives: The study was designed to find out the type and quantity of different type of wastes generated inthe two wings of Saidu Group of teaching Hospitals. The study also aimed at finding that whether facilitiesare available in different units for the segregation, storage, disinfection of infectious waste at the onset andmethods of disposal of waste within and outside the hospital. Also, types of items reused and their methodsof sterilization and the fate of used syringes was found out.Study Design: ObservationalMethodology: The study focus was Saidu Teaching Hospital (STH), a tertiary care hospital providingservices to the people of Swat, Malakand, Dir, Kohistan and areas far up to Chitral. Situated 1.5 Km apartSTH consists of two administrative units,Saidu Wing and Central Wing.A qualitative analysis of various aspects of waste management was done by reviewing the availableauthentic record and discussion with the sanitary and administrative staff of the hospital. All the data wascollected according to, and filled in a pre-designed questionnaire.Results: It was found that Saidu Teaching Hospital generates more than 550 Kg of solid waste and 1295liters of liquid waste per day, which makes 1.2 Kg/bed/day. As a whole 80% of the waste generated wasordinary garbage, 12% was infectious, 4% was Pharmacological, 3% pathological and 0.8% consisted ofsharps.The provision of facilities for the segregation of waste at outpatient departments, Wards, Operation theatreand Laboratories/Blood Banks were 7.5%, 7%, 20% and 28.5% respectively and for storage of waste beforedisposal at outpatient departments, Wards, Operation theatre and Laboratories / Blood Banks were 22%,8%, 0% and 28.5% respectively.Disinfection of infectious waste at outpatient departments, wards, operation theatre and laboratories / bloodbanks was 10%, 12%, 0% and 17% respectively. Methods used were treatment with phenyl and burning inopen air.About the removal of waste from hospital premises, 78% mentioned sweepers, 17% said rig pickers while5% said that there is no one to take away the waste.54% admitted that they threw the syringes as such in thebins.The study found that 80% of the waste went to the municipal corporation land fills, the rest was either burntor thrown as such into the water channel passing through the hospital (12% & 8% respectively). 67% blamedthe administration, 25 % held the doctors responsible, 37% charged the nursing staff and 67% blamed thesweepers for the faulty management of hospital waste.Conclusion: It is thus concluded that Saidu Teaching Hospital generates huge amount of solid and liquidwaste, which is not properly disposed off currently, therefore it needs modern and scientific waste disposalsystems.Keywords: Waste Management, hospital waste management, waste disposal


2017 ◽  
Author(s):  
Florin Constantin MIHAI

The paper aims to examine the changes in the rural waste management sector at regional scale since the Romania adhesion to the EU in 2007. Traditional waste management based on the mixed waste collection and waste disposal often on improper sites prevailed in municipal waste management options of transitional economies across the globe. The lack of formal waste collection services in rural areas has encouraged the open dumping or backyard burning. The paper analyses the improvements and challenges of local authorities in order to fulfill the new EU requirements in this sector supported by data analysis at local administrative unit levels and field observations. Geographical analysis is compulsory in order to reveal the local disparities. The paper performs an assessment of waste collection issues across 78 rural municipalities within Neamt County. This sector is emerging in rural areas of Eastern Europe, but is far from an efficient municipal waste management system based on the waste hierarchy concept.


2014 ◽  
Vol 3 (4) ◽  
pp. 95 ◽  
Author(s):  
Karin KOLBE

This study analyses knowledge, attitudes and behaviour in the area of different waste management approaches of pupils in Romania. Examining school students’ knowledge about waste management options and finding out the reasons that prevent them from participating in environmentally sound disposal options is essential for teachers and legislators. For this purpose, questionnaires were designed and distributed in two schools in Romania.The analysis revealed that knowledge is highly developed in Romania regarding the potential of recycling, while the concepts of waste management technologies are far less known about and understood. Landfill is seen as a problem for human health and the environment. However, recycling behaviour is low - partly as a result of limited possibilities. In general, the treatment hierarchy that is recommended in the "European waste hierarchy" is only partly reflected in students’ attitudes towards waste management options.


2017 ◽  
pp. 78
Author(s):  
Harri Moora ◽  
Evelin Urbel-Piirsalu ◽  
Viktoria Voronova

Waste management has an influence on the greenhouse gas (GHG) formation. The emissions of greenhouse gases vary between the EU countries depending on waste treatment practices and other regional factors such us composition of waste. The aim of this paper was to examine, from a life-cycle perspective, Municipal Solid Waste (MSW) management in the context of greenhouse gas formation and to evaluate the possible reduction of climate change potential of alternative waste management options in Estonia. The paper summarises the results of a case study in Estonia, assessing the climate change impact by 2020 in terms of net greenhouse gas emissions from two possible management scenarios. As a result it can be concluded that better management of municipal waste and diversion of municipal waste away from landfills could significantly reduce the emissions of GHG and, if high rates of recycling and incineration with energy recovery are attained, the net greenhouse gas emissions may even become negative. It means that these waste management options can partly offset the emissions that occurred when the products were manufactured from virgin materials and energy was produced from fossil fuels. This is especially important concerning the climate change impact.


2013 ◽  
Vol 12 (4) ◽  
pp. 382 ◽  
Author(s):  
Karthika Krishnasamy ◽  
Jaya Nair ◽  
Robert James Hughes

2019 ◽  
Vol 11 (6) ◽  
pp. 1759
Author(s):  
Olaoluwa Omilani ◽  
Adebayo Abass ◽  
Victor Okoruwa

The paper examined the willingness of smallholder cassava processors to pay for value-added solid wastes management solutions in Nigeria. We employed a multistage sampling procedure to obtain primary data from 403 cassava processors from the forest and Guinea savannah zones of Nigeria. Contingent valuation and logistic regression were used to determine the willingness of the processors to pay for improved waste management options and the factors influencing their decision on the type of waste management system adopted and willingness to pay for a value-added solid-waste management system option. Women constituted the largest population of smallholder cassava processors, and the processors generated a lot of solid waste (605–878 kg/processor/season). Waste was usually dumped (59.6%), given to others (58.1%), or sold in wet (27.8%) or dry (35.5%) forms. The factors influencing the processors’ decision on the type of waste management system to adopt included sex of processors, membership of an association, quantity of cassava processed and ownership structure. Whereas the processors were willing to pay for new training on improved waste management technologies, they were not willing to pay more than US$3. However, US$3 may be paid for training in mushroom production. It is expected that public expenditure on training to empower processors to use solid-waste conversion technologies for generating value-added products will lead to such social benefits as lower exposure to environmental toxins from the air, rivers and underground water, among others, and additional income for the smallholder processors. The output of the study can serve as the basis for developing usable and affordable solid-waste management systems for community cassava processing units in African countries involved in cassava production.


2020 ◽  
pp. 0734242X2095427
Author(s):  
Maribel Velasco Perez ◽  
Perla Xochitl Sotelo Navarro ◽  
Alethia Vazquez Morillas ◽  
Rosa María Espinosa Valdemar ◽  
Jéssica Paola Hermoso Lopez Araiza

Absorbent hygiene products (AHP) have received much interest due to the notion that their end-of-life (EoL) stage has high environmental impacts. Since the use of AHP will continue to rise in the foreseeable future, information that helps with a reduction in the environmental impacts of AHP through their life cycle is needed. This research presents an estimation of AHP in municipal waste, and it also reviews and discusses waste management options, available treatments at bench, pilot or full scale, and life cycle assessments (LCAs) available in the literature. Municipal waste of countries belonging to the Organization for Economic Co-operation and Development contains on average 2.7% of baby nappies, 4.8% of adult nappies and 0.5% of sanitary pads (in weight), whereas that of Latin-American countries have 7.3%, 3.3%, and 0.9%, respectively. Management options for AHP waste in developed countries are landfilling and incineration, while in developing countries AHP are disposed of in dumpsites and landfills. Most LCAs identify significant environmental impacts in the production of raw materials, while EoL scenarios involving incineration and landfill were found to have a significant contribution to global warming potential. Substitution with alternative products has been suggested as a way of decreasing environmental impacts; however, their use frequently causes a trade-off on different impact categories. Municipalities could use a wide range of policy tools, such as extended producer responsibility systems, bans, levies, ecolabelling, or a combination of these, to reduce the environmental and economic burden of AHP waste.


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