Marcin Plewa

The Assessment Method of the Organization of Municipal Waste Collection Zones

The problem of proper organization of waste management systems these days becomes more and more significant. Plans of waste management, assume lowering the number of waste indicated for treatment, encouraging the reuse of waste and creating preferences in order to raise the level of recovery processes, in particular, recycling. Realization of the aforementioned establishments in the following years will be significantly dependent from the proper organization of waste management systems. In the article, the authors presented a method of evaluation of the process of planning of waste collection zones, which uses the simulation model. Assuming that the dependability of the system is its capability to fulfill what is expected of the system, we might assume that, in relation to the subsystem of waste collection, the main measure of evaluation will be the reception of the waste in a timely manner and having required the values of indicators defining its efficiency. The presented method allows one to assign points (places of waste gathering) in already existing zones, in case of which, it should be considered to transfer them to other zones of waste collection. The improvement of zones for waste collection will raise the access of the means of transport and will improve the timeliness of the collection, significantly influencing the level of dependability of the collection subsystem.

Logistic Support Model for the Sorting Process of Selectively Collected Municipal Waste

An intensive growth of population, progressing processes of social and economic development and increasing urbanisation of fast-developing countries considerably contribute to the increase in the amount of the waste produced. This necessitates reasonable decisions to be made within waste man-agement in urban areas. Therefore, a clear increase in the interest in matters as-sociated with the selection of relevant strategies for planning the waste man-agement process has been noticeable in recent years. One of the global aims is to develop appropriate waste recycling strategies. Solving problems associated with the selection of an appropriate strategy for waste management, planning collection processes, sorting and recovery, designing infrastructures for waste treatment and monitoring of such processes often requires that a model-based approach should be applied. The main objective of this paper is to present a simulation model that aids the decision-making process as regards the planning of sorting processes for the selectively collected municipal waste at the Recy-cling Centre in WPO ALBA S.A.

Analysis of the Impact of Changes in the Size of the Waste Stream on the Process of Manual Sorting of Waste

Recycling centers are one of the most important elements of the waste management system. The achievement of required levels of recovery for installations is largely dependent on the proper organization of processes, in particular processes of sorting of waste materials. In most recycling center the key role is played by the processes of manual sorting of waste. The main goal of this article is to analyze the impact of changes in the size of the waste stream on the value of indicators used to evaluate the process of manual sorting of waste. For the analysis the authors used a simulation model that describes the process of manual sorting of waste in the WPO ALBA S.A. recycling center. Sensitivity analysis of simulation model will allow to improve the process by adjusting the size of the stream to the line ability.