This study demonstrated heavy metal removal from neutral mine drainage of a closed in Kyoto prefecture pilot-scale constructed wetlands (CWs). The CWs filled with loamy soil and limestone were unplanted or planted cattails. hydraulic retention time (HRT) the was shortened gradually 3.8 days to 1.2 during 3.5 months operation. A short HRT sufficient achieve effluent standard for Cd (0.03 mg/L). ...

This study investigated the efficiency of a sequential system involving surface flow and vegetated sub-surface constructed wetland (CW) in treatment Brewery Wastewater. Six experimental CW (2 4 subsurface flow) control (1 2 with 200 mm depth 19.05 diameter granite 100 sharp sand as substrate were used for experiment. The CWs planted locally available macrophytes: water hyacinth (Eichhornia cras...

Sedges and grasses have a competitive advantage over cattails at higher elevations in Great Lakes wetlands where periodic low lake levels result soils too dry to support cattails. Regulation of Lake Ontario water eliminated lake-level years, resulting cattail invasion. At wetland scale two sites, we tested restoration methods by dredging channels through cattails, using spoil materials create m...

Although the occurrence of intracellular glasses in seeds and pollen has been established, physical properties such as rotational correlation times and viscosity have not been studied extensively. Using electron paramagnetic resonance spectroscopy, we examined changes in the molecular mobility of the hydrophilic nitroxide spin probe 3-carboxy-proxyl during melting of intracellular glasses in ax...

We assessed the biomass production, biomass allocation patterns, height growth, and root airspace of seventeen wetland plant taxa, including two potentially invasive species, grown under high nutrient conditions and subjected to four hydrologic regimes: constant drawdown, cyclic flooding and drawdown, cyclic flooding and drought, and constant flooding for the duration of the experiment ( 10 wee...

Biomonitoring is a cheap and effective tool for evaluation of water quality, and infer on the balance of aquatic ecosystems. The benthic macroinvertebrates are bioindicators sensitive to environmental changes, and can assist in detecting and preventing impacts such as organic enrichment and imbalance in the food chain. We compared the structure of benthic communities on artificial substrate sam...

There has been considerable recent interest in the use of Web 2.0/social software in organizational settings. In this talk, several IBM research projects will be discussed in which social software was tailored for business and deployed within a large global enterprise (IBM). These projects include a social bookmarking service (dogear), a lightweight file sharing application (cattail) and a soci...