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FRESHWATER PROGRAMME
Phytotechnologies and Ecohydrology:
Pilot Case Study:
As part of the effort to further develop and implement the principles and
practices of Phytotechnologies and Ecohydrology, a number of activities have been
taken place lately. The first one worth to be mentioned for its high relevance
is the Pilica River Pilot Case Study undertaken in Poland under the cooperation
of UNESCO-IHP, the Polish Academy of Science and the University of Lozd in Poland.
The Pilica river is the major affluent of the Sulejov reservoir which provides
water for the City of Lodz which is the second largest City in Poland. It has
been carrying large amounts of phosphorous and nitrogen in its water which resulted
in the eutrophication of the reservoirs causing large algal blooms including the
toxic cyanobacterias. Originally it was planned to build a treatment plant to
solve the problem but through the application of Phytotechnologies and Ecohydrology
the problem could be solved with a less expensive and a more environmentally sustainable
option. For the purpose a floodland has been proposed to be used as a buffer zone
and nutrient absorbing system to reduce the concentration of these nutrients in
the river prior to discharge in the reservoir. Also that the old existing treatment
plant upstream should be upgraded and include the construction of artificial wetlands.
A large number or the basic studies were already done by the University of
Lodz hence there was a need to put the plan into action and further develop and
complement the existing studies as well as starting to put into practice the solutions.
Base on this fact IETC started the support during 2004 by looking at the following
aspects:
- Further develop the existing hydrodynamic model for management of the river
flow to inundate the flood plain and design and construction of the corresponding
sluice gates;
- Develop a mathematical model to assess the retention time of the flood in
the area;
- Support the participation and involvement of landowners of the floodplain
area into the project execution. Preparation of meetings with land owners and
establishment of association responsible for flood land/wetland management;
- Support the undertaking of a Seminar-Workshop to demonstrate the results
of the case study after one year of the implementation of the activities;
- Support the preparation of a draft management plan for the treatment of wastewater
from Przedbórz Town considering the use of adjacent wetlands.
In December of 2003 the first phase of the support will finalize and the results
are expected to be most encouraging which will be the basis for the support during
2004. To see the in more detail this Pilot Case Study please refer to the following
website which has been specifically set for the purpose: http://www.biol.uni.lodz.pl/demosite/pilica.
To complement the existing Guidelines for the Integrated Management of the
Watershed under Phytotechnologies and Ecohydrology a Manual on the subject is
under production at present expecting it to be ready published by March-April
of 2004. The Manual has a more friendly presentation than the Guidelines and it
also has a different perspective in the way it is structured. It will include
other areas of knowledge which were not considered in the Guidelines such as Coastal
Areas.
All the Sections in the Manual are written by a number of specialists making
it more attractive and comprehensive. It is worth to note that aside of IETCs
and UNESCO Regional Office for Science for Europe support in the preparation the
Scientific Advisory Committee of the Ecohydrology Activity support was crucial
in so far assisting with its design and preparation as some of its members are
also authors in the Manual.
Another interesting publication related to eutrophication management and water
quality control under preparation is the Manual for the Construction of Artificial
Wetlands and Stabilization Ponds. This is an effort undertaken by the University
of Dar El Salaam in Tanzania and the Danish University of Pharmaceutical Sciences
in Copenhagen. This is the result of a project funded by the Danish International
Development Agency or DANIDA and IETC is co-branding it.
The Manual is very useful for decision making related to wastewater treatment
in tropical regions as for example it provides guidance about how much land is
required for a constructed wetland to reduce nitrogen, phosphorous some heavy
metals and biological oxygen demand (BOD5) from a given effluent. For the purpose
the Manual includes a number of models easy to run; furthermore, there is a full
technical explanation about the design of the wetlands in terms of their characteristics
and requirements. The Manual is expected to be ready by mid next year after IETC
has revised it and publish it.
IETC will have ready online the Software Aqua-shed Online as one of its e-learning
products. This software is related to Integrated Watershed Management (IWM) bringing
in the concepts of Environmental Management Systems or EMS. It is designed for
those interested in the subject and its designed allows for training purposes
too. It has Three Modules where general information and background about Integrated
Watershed Management is provided, includes examples of existing problems and challenges
in the area identifying specific case studies around the world and provides examples
of success stories. Furthermore, it includes a model where by it is possible to
see the effects of alteration in water flows and some environmental components
in lakes and reservoirs which is based on the PAMOLARE Training Package already
available in IETC Homepage.
A number of capacity building activities have been taken place within the realm
of the existing cooperation with UNESCO-IHP on Phytotechnologies and Ecohydrology,
they include training workshops for Southeast Asian Countries, Europe and Latin
America on the subject and have been undertaken with national and local government
bodies, institutions and agencies.
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