scholarly journals Case Study: Regional Supply of Fuel to Cement Industry – Evalutaion of a Regional Waste Treatment

2017 ◽  
pp. 598-606
Author(s):  
Peter Mellbo

In 2005, 49 million tonnes of municipal solid waste (MSW) were incinerated in conventional incineration plants (CWI-plants) in Europe. There are, however, alternatives to treating solid waste in CWI-plants. By treating the solid waste in a mechanical-biological treatment plant (MBT-plant) or in a mechanical treatment plant (MT-plant) the solid waste can be sorted into fractions of combustible matter, inert matter and metals. The sorted combustible matter (refuse-derived fuel, RDF) can be used for co-incineration in e.g. cement kilns. This study comprises an environmental economic evaluation of treatment of solid waste in a CWI-plant or treatment in a MBT-plant or a MT-plant, followed by incineration of produced RDF at a regional cement industry. The evaluation was made with an evaluation method, in which criteria were quantified or valuated. The aim of this study was to identify the economic and environmental effects of a regional treatment of solid waste. The study shows that a treatment of solid waste in a MT-plant is the best scenario from an environmental economical point of view, while a treatment and incineration in a CWI-plant is the worst scenario. The study clearly shows that KSRR and the environment has a lot to gain if the treatment of solid waste in the future is changed from treatment and incineration in a CWI-plant to a treatment in a MT-plant, where produced RDF is incinerated at the regional cement industry. It also shows that treatment in a MBT-plant or a MT-plant follows the waste hierarchy to a better extent, compared to treatment and incineration in a CWI-plant.

2011 ◽  
Author(s):  
Janet M. Blatny ◽  
Jaran S. Olsen ◽  
Øyvind Andreassen ◽  
Viggo Waagen ◽  
Bjørn Anders P. Reif

2015 ◽  
Vol 16 (2) ◽  
pp. 3769-3782 ◽  
Author(s):  
Carlos Alvarez-Gallego ◽  
Luis Fdez-Güelfo ◽  
María de los Angeles Romero Aguilar ◽  
Luis Romero García

Work ◽  
2018 ◽  
Vol 60 (4) ◽  
pp. 613-622 ◽  
Author(s):  
Juan Carlos Rubio-Romero ◽  
Sebastian Molinillo ◽  
Antonio López-Arquillos ◽  
Rafael Arjona-Jiménez ◽  
José María De La Varga-Salto

2019 ◽  
Vol 37 (2) ◽  
pp. 176-185 ◽  
Author(s):  
Geraldo C Oliveira Neto ◽  
José MF Correia

The aim of this study was to assess the economic and environmental advantages of implementing reverse logistics to recycle solid waste from construction companies. The adopted research method was based on a systematic literature review and two case studies. For the economic assessment, the return on investment, the internal rate of return, and the discounted payback factors were considered, while the material intensity factor was used for the environmental impact assessment. This study shows that there are economic and environmental advantages associated with the use of reverse logistics for solid waste treatment and recycling. In 2016, the purchase of recycled blocks resulted in a profit of over US$45,000 for one company, and another company earned almost US$250,000 in the same year by recycling solid waste from manufacturing blocks and selling iron, wood, paper, and plastics. Furthermore, the environmental impact was reduced. This paper contributes to the dissemination of knowledge regarding the advantages of adopting reverse logistics for recycling construction and demolition waste, and creates new opportunities for companies.


2021 ◽  
Vol 13 (17) ◽  
pp. 9855
Author(s):  
Xiaoyu Yang ◽  
Xiaopeng Guo ◽  
Kun Yang

The output of municipal solid waste is growing rapidly, which has brought tremendous pressure to urban development. The supply chain of municipal solid waste (MSW) in China mainly contains three processes: collection, transportation, and disposal. The waste is sorted at the collection and disposed of according to the classification. However, it is mixed at the transportation stage. Mixed transportation remixes the separately collected waste, which seriously affects the disposal effect. The supply chain of MSW urgently needs to be redesigned to improve the MSW disposal effect. First of all, on the ground of the waste treatment situation, we redesigned the supply chain of MSW in China. Secondly, combined with the redesign of the MSW supply chain, this paper established the function allocation model for collection stations, making a collection station only gather one type of waste, and built the transportation path planning model for vehicles, reducing the impact of waste storage on residents. Finally, based on the data of Xuanwu District in Beijing, the supply chain redesigning practical example of incinerable waste was given. The supply chain redesigning model in this paper not only makes full use of the existing infrastructure but also improves the disposal effect of waste. The supply chain redesigning model has practical application value.


2019 ◽  
pp. 377-387
Author(s):  
Steve Last ◽  
Jonty Olufsen ◽  
Howard Robinson

Demand for of on-site treatment schemes that are capable of treating landfill leachates to highstandards has grown substantially during the last two decades. Increasingly, plants are beingrequired to discharge high quality effluents directly into surface watercourses, or to provide ahigh degree of treatment prior to discharge into the public sewerage system. This trend is certainto continue - primarily driven in the United Kingdom in recent months by the requirements of theEU IPPC Directive, which demands the application of Best Available Techniques (BAT), and bythe EU Water Framework Directive.Aerobic biological treatment of leachate from domestic landfills has widely been shown to be themost appropriate, reliable and successful treatment technique to consistently meet stringentdischarge constraints with minimal operator input. The cost of this technology is also oftenfavourable, when compared with alternative processes. More than 50 plants of this type arecurrently operational in the United Kingdom, making it by far the most widely adopted on-sitetreatment technology, and many other examples exist overseas.This paper provides a detailed case study of the design, construction and commissioning of abiological, Sequencing Batch Reactor (SBR) leachate treatment plant for Hampshire CountyCouncil, at Efford Landfill Site in the New Forest in Hampshire, UK.Since plant commissioning was completed by the authors during early 2003, extensive anddetailed monitoring data have been collected. These are presented for the plant, which is capable 3 of treating up to 150 m /day of strong methanogenic leachate (ammoniacal-N from 600-1 000mg/1), and are compared with treatment performances achieved at other full-scale leachatetreatment plants. The paper shows 80D5 and ammoniacal-N removal efficiencies in excess of99%.Results also show the efficiency of polishing treatment in a reed bed, before discharge of finaleffluent to public sewer.


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