Operation of the Kis-Balaton reservoir

evaluation of nutrient removal rates

Ferenc Szilágyi, L. Somlyódy, László Koncsos

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

As one of the major measures for controlling the man-made eutrophication of Lake Balaton, the Hidvég reservoir of 20 km2 surface area was built near the mouth of River Zala, draining half the watershed of the lake, and representing the largest nutrient source for the lake. The reservoir, as the first element of the expected total system of 70 km2 surface area (Kis-Balaton Control System), started to operate in June 1985, aiming at removing nutrients primarily through sedimentation, adsorption and uptake by macrophytes. Detailed investigations began with the operation. These cover the observation of upstream and downstream nutrient loads and the water quality in the reservoir, the study of major phosphorus removal processes, and analysis of the nitrogen cycle and of the behaviour of phytoplankton, zooplankton, fish and macrophytes. The research programme is completed by the evaluation of observations (including the use of phosphorus budget models), with special emphasis on future operation modes of the reservoir. The nutrient removal efficiencies in the reservoir came up to expectations. The removal rates for suspended solids, total-P, soluble reactive-P and nitrate-N exceeded 50 % in the first full year of operation (1986). As a result of reservoir operation, nutrient loads in the western basin of Lake Balaton have been significantly reduced. However, the improvement in water quality can be expected only with a lag time due to the internal P load of the basin.

Original languageEnglish
Pages (from-to)297-306
Number of pages10
JournalHydrobiologia
Volume191
Issue number1
DOIs
Publication statusPublished - Feb 1990

Fingerprint

Petroleum reservoir evaluation
Nutrients
Lakes
pollution load
macrophytes
lakes
surface area
nutrients
water quality
phosphorus
total suspended solids
nutrient
lake
Water quality
Phosphorus
research programs
eutrophication
mouth
zooplankton
adsorption

Keywords

  • eutrophication
  • lake management
  • nutrient removal
  • wetlands

ASJC Scopus subject areas

  • Water Science and Technology
  • Pollution
  • Environmental Science(all)
  • Oceanography
  • Aquatic Science

Cite this

Operation of the Kis-Balaton reservoir : evaluation of nutrient removal rates. / Szilágyi, Ferenc; Somlyódy, L.; Koncsos, László.

In: Hydrobiologia, Vol. 191, No. 1, 02.1990, p. 297-306.

Research output: Contribution to journalArticle

Szilágyi, Ferenc ; Somlyódy, L. ; Koncsos, László. / Operation of the Kis-Balaton reservoir : evaluation of nutrient removal rates. In: Hydrobiologia. 1990 ; Vol. 191, No. 1. pp. 297-306.
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