VOL. 10 (2008)
Full
text of each
article is
available in PDF format. CD with full texts could be ordered on our web
site.
All articles have been reviewed by the members of Scientific Board.
An analysis of the current condition of
waste management in Poland and the directions for its development as
exemplified by the city of Krakow
Kwiatkowsk
M., W±sik S.
(in Polish)
Abstract
The article presents an analysis of the current condition of waste
management in Krakow and in Poland, as well as the potential directions
for its development, taking into account the environmental, economic
and social aspects. It also covers the results of the survey targeted
in particular at determining the ways of perceiving the problems
related to waste management in Poland by the local community and its
expectations as to the future activities in this respect. The survey
was to provide information on the city dwellers’ assessment of the
availability of the infrastructure for selective waste collection and
the obstacles for its development. Another purpose of the survey was to
evaluate the level of education in terms of waste management and to
assess public opinion on the planned construction of a waste
incineration plant and the concept of introducing common deposit for
returnable containers, patterned after other countries. The survey also
involved a request to define the dwellers’ readiness to incur the costs
of introducing new solutions in the field of waste management.
Waste
disposal system with energy recovery
Pilawski
M.
(in Polish)
Abstract
Waste transformation system works as a system of alternative
fuels production. One can use that alternative fuels to transformation
of other kinds of wastes. In technological line is created idea : „ WWW
System - Waste Works on Waste System „. In consistency WWW System works
as a „ all waste liquidation system”. In the paper is described one of
possible of WWW System with tires transformation process into gas fuel
using to transformation of waste plastic materials into liquid fuel
components, etc. Excess of fuel or energy production is sold on the
market.
The
future of electronic waste management in Poland
Pikoń K.
(in Polish)
Abstract
Electronic wastes are the relatively large part of hazardous waste
total volume. Their prop-erties and composition could make thread for
natural environment. This is why EU pays special attention in its waste
policy to this group of waste. In the article law requirements relevant
to electronic waste management was presented. Its place in polish and
EU law system was indicated. In the separate chapter streams of various
electronic waste types was described as well as the overall balance of
16 02 group waste in recent years. Challenges for the future as far as
electronic waste is concerned were discussed in the article.
Two
layers gas-generator to biomass gasification - mathematical model
Poskrobko S.
(in Polish)
Abstract
The work presents the conception of formulation of the mathematical
model of generator processes, which includes basic physical and
chemical phenomena of high-temperature transformation of biomass, i.e.
gasification and degasification. Within the frames of mathematical
description given are simplified mass and energy balance equations, the
solu-tion of which leads to the identification of essential
technological parameters being indis-pensable in the course of
designing of gas generators. Discussed problems concern manu-facturing
of synthetic gas (generator gas) for needs of power engineering.
Polyethylene
form waste – whether problematic waste or energy resource?
Hryb W.
(in Polish)
Abstract
Waste foil for the last time, especially in the media are referred to
as particularly dangerous for the environment. In the markets is
limited to the issue of plastic bags, introduces the reusable bags
called them ecological. This paper presents a proposal for the use of
polyethylene waste as a valuable component of the formed fuel. It
presented the results of the research of the properties of formed fuel
containing waste polyethylene and give an example of the sorting plant,
which obtains this type of product as a result of municipal and
industrial waste processing.
Thermal
conversion of used abrasive materials for electrocorund recovery
Wasielewski R., Stelmach S.
(in Polish)
Abstract
The paper presents preliminary results of used abrasive materials
thermal conversion. These investigations have been performed for
assessment of electrocorund recovery possibility. Sample of mixed used
cutting discs and abrasive papers obtained from abrasives manufacturer
has been utilize for testing. Firstly, detailed physicochemical
properties of tested waste have been determined. The test of thermal
conversion has been realized at fixed-bed laboratory scale installation
with temperature rise up to 1000oC. It has been found that thermal
conversion of used abrasive materials could be a preliminary step of
its preparing for further electrocorund recovery. Recovery of
electrocorund from solid residue produced during thermal conversion of
used abrasive materials should be based on typical methods exploited
for enrichment of minerals, e.g. flotation or magnetic separation with
rotating magnetic field.
The
influence of storing of the fuel based on sewage sludge and sawdust on
its chosen prosperities
Wzorek M.
(in Polish)
Abstract
In the paper the influence of storing of the fuel based on sewage
sludge and sawdust on its chosen prosperities is presented.
Energy characteristic and physical prosperities, which have important
to transport and stor-ing operation before its co-combustion with coal,
have been defined. The investigations were led by period of six months,
during which the changes of prosperities e.i. moisture, the heat value
and drop strength have been marked. It was also done the tests of
resistance to forst and waterproofness of the fuel. To determine the
environmental impact when the fuel is stored, the produced fuel was
subjected to the tests on harmful substance elution. Basing of
conducted experimental tests it is possible to affirm that the fuel
from sewage sludge and sawdust could be periodically store before its
combustion.
Disassembly,
recovery and recycling of waste of selected electrical and electronic
equipment
Alwaeli M.
(in Polish)
Abstract
Waste of selected electrical and electronic (E&E) equipment
appertain to 16 02 09 industrial waste group and 20 01 35 municipal
waste group. In view of deleterious substance content, most often
E&E , classified as hazardous waste. Among of E&E waste, the
greatest part come from computer equipment waste. Hence, considerable
part of this work will be devote for present the methods of recycling
and dealing with computer equipment waste.