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The biennial International Gothenburg Symposia on Chemical Water
and Waste water Treatment have proven to be a unique platform for
the exchange of ideas and experiences between administrators,
engineers and scientists active in the fields of water supply,
wastewater disposal and pollution control. The First Symposium
(Gothenburg, 1984) provided a long needed survey over theory and
application of chemical water and wastewater treatment. The Second
Symposium (Berlin, 1986) was devoted to aspects of recycling in
chemical water and wastewater technology. The Third Symposium
(Gothenburg, 1988) recognised the growing need and the potentials
of pretreatment. These proceedings of the 4th Symposium focus on
technology transfer from chemical treatment theory to practical
treatment of drinking water and industrial or domestic wastewater.
The contributions are devoted to questions of floc for mation and
floc separation as well as problems and practical solutions
associated with chemicals and dosing control. Special attention is
given to the combination of chemical and biological processes for
nutrient removal from wastewater. It is the editors' privilege to
acknowledge the invaluable help from the authors of this book. It
is the editors' hope that they might convey the significance and
potential of chemical treatment in solving the challenging problems
water purification, wastewater disposal and pollution control.
The International Gothenburg Symposia on Chemical Treatment have
proven to be a unique platform for the exchange of ideas between
theory and practice. They bring together administrators, engineers
and scientists, who are concerned with water purification and
wastewater treatment through precipitation, coagulation and
subsequent solid/liquid separation. This volume contains the
proceedings of the 3rd Symposium, focussing on Pretreatment.
Pretreatment is understood as the scene total of all measures taken
at the pollutant source to protect water supply, the sewerage
system, the central treatment plant, and the aqueous environment.
It is, where applicable, the most efficient measure in ecological
and economic respects. The contributions of this third volume
address questions of surveillance, automation and remote control of
installations as well as the principles of legal, administrative
and economic measures for regulations within the context of
pretreatment. Special attention is given to the possibilities and
limits of pretreatment of industrial discharges. Again it is the
editors'privilege to acknowledge the invaluable help from the
authors of this book. It is the editors' hope that they might
convey the significance and potential of pretreatment in water
supply, in industrial waste management and in municipal wastewater
treatment and sludge handling.
With joy and pride parents observe the coming of age of their
children, confer. , ence conveners the acceptance of their
programmes, and editors the demand for their volumes. The
scientific advisory board of the Gothenburg . . Symposia, the
Springer publishing house of the proceedings and the editors are
more than pleased with the fact that the demand for these books far
exceeds the supply. The themes vocalized by the Gothenburg Symposia
reHect research and development needs for the environment more than
envisioned at the concep tion of the conferences. An
environment-oriented analysis of the situation, not confined to the
European community, furnishes the following results: (1) Due to the
very high population density in many areas environmental quality is
endangered; this has become apparent at the very moment in
particular in the aqueous habitat and is corroborated by
corresponding regulation proposals from the European Council. (2)
Pollution control concepts and measures are developed to a varying
degree in many countries of the world, reHecting in most instances
the need for environmental protection and the closely related devel
opment of (judicial and technical) measures. In most instances
these controlling and protective measures need to be intensified.
(3) Thus, nearly all countries face the problem of developing
and/or improving pollution control strategies, i. e. building new
treatment plants, upgrading overloaded or outdated instal lations
and designing new operating and controlling strategies for improved
plant performance.
Exactly ten years ago an experiment was started that proved to be
extremely successful: the First Gothenburg Symposium. Its intent
was to further the under standing of all processes pertaining to
Chemical Water and Wastewater Treatment, and to bring together
specialists working in basic research as well as in devel opment
and administration. Now, the Proceedings of the Sixth Symposium are
about to be published, clearly proving that there is a need for
this forum. They dramatically illustrate the significance and the
dynamic development of the topics of these symposia. It is
fascinating to witness that in this time of reduced economic growth
or even standstill, the environmental drive has not come to a halt,
as many anticipated or feared. It is accepted more and more that
the protection of the environment, a constant theme in all the
Gothenburg Symposia, is not only a topic to be dealt with in times
of affluence; it is now also seen as an instrument for cutting ex
penditure, saving energy, and husbanding resources. The ever
growing interest in these Gothenburg Symposia, documented by the
large number of contributions the scientific panel received and the
large demand for the books of this series that always exceeds the
supply, testify to this commitment."
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