Application of Density Current Generator for Large Scale Improvement of Sediment Quality in Lake Kasumigaura

NAKAO NOMURA; AKIO MINAMI; TOSHIO YAMATOGI; KAZUYUKI OUCHI; TOSHIAKI OKA; HIDEYUKI TAMAKI; MASATOSHI MATSUMURA

doi:10.2521/jswtb.39.85

NAKAO NOMURA, AKIO MINAMI, TOSHIO YAMATOGI, KAZUYUKI OUCHI, TOSHIAKI OKA, HIDEYUKI TAMAKI, MASATOSHI MATSUMURA

Author information

Keywords: density current generator, sediment quality improvement, MEC model, bio-indicator, ignition loss

JOURNAL FREE ACCESS

2003 Volume 39 Issue 2 Pages 85-91

DOI https://doi.org/10.2521/jswtb.39.85

Details

Abstract

A density current generator was designed for sediment treatment of Lake Kasumigaura. A fresh water shellfish, Ishigai, introduced as a bio-indicator for sediment quality monitoring, showed high survival and growth rate around 400m away the from density current generator. Simulation of water circulation was conducted using MEC (Marine Environmental Committee) model and results showed that although the flow rate was very slow, water discharged from the density current generator could reach up to several kilometers within 6 hours.

Corresponding author

Register with J-STAGE for free!