Wastewaters of small municipalities (≤500 IE) are the least treated point source of phosphorus. Is there a place for limnological solution?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020711%3A_____%2F17%3A00004505" target="_blank" >RIV/00020711:_____/17:00004505 - isvavai.cz</a>

Result on the web

<a href="http://www.sefs10.cz/abstracts?session=9and=Apply" target="_blank" >http://www.sefs10.cz/abstracts?session=9and=Apply</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Wastewaters of small municipalities (≤500 IE) are the least treated point source of phosphorus. Is there a place for limnological solution?

Original language description

After decades of research, investment and legislation effort many water-managers would check-off eutrophication. But regardless of science success phosphorus concentrations remain still too high. During the CZ joining EU (2004) we expected new legislation (WFD and 91/271/EEC) will direct us on trajectory of West, i.e. change apportionment from point to non-point sources. After precise arable land monitoring (2006-2011) we found surprisingly low concentration of P (0,069 mg/L) in agricultural headwaters. Then, several regional P-budget models brought us to inevitable conclusion: communal wastewaters are dominant (60-80 %) sources of P emission. In pursue to sharpen P estimation we step up to total survey of point sources. In the last two years thus we walked through every single village (712 together) in four prior watersheds (totally 2289 km2). Revising waste-water (WW) treatment we searched for pipes discharging WW at any dilution. But TP and DRP analyses (499 samples) revealed perspective weakness: one fifth of P comes from ½ of people living in 90 % of municipalities. Standard solution (WC, sewerage, WWTP) is there too expensive and low effective. Consequently, overwhelming length of streams will suffer from highest P-concentrations for longest time. On the other hand, every village has at least one pond. Most of these hypertrophic waters lie in legal vacuum, without targeted fish stock and even maintenance. They are not an official place of WW treatment. Not forgetting present shift from “remove” to “recycle” we search for a good and useful solution. Would be limnology a part of it?

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10617 - Marine biology, freshwater biology, limnology

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

10th Symposium for european freshwater Sciences - Abstract book

ISBN

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ISSN

neuveden

e-ISSN

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Number of pages

1

Pages from-to

i

Publisher name

Edukol, s.r.o.

Place of publication

Olomouc

Event location

Olomouc, ČR

Event date

Jul 2, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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