An Accurate Evaluation of Water Balance to Predict Surface Runoff and Percolation
SPONSOR: National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD: 3/1/02 – 2/28/05 ABSTRACT: Hawaii, like many other states, has a number of unlined landfills that are potential groundwater contamination sources. Infiltration control is a major means…
Prevention of Colloidal Fouling in Crossflow Membrane Filtration: Searching for Optimal Operation Conditions Year 2
SPONSOR: U.S. Geological Survey PROJECT PERIOD: 03/01/03 – 02/28/05 ABSTRACT: Crossflow membrane filtration processes involving reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF), and microfiltration (MF) have steadily gained importance in environmental engineering separations over the past decade. Numerous improvements in…
An Evaluation of Factors Affecting the Transport of Pharmaceutical Compounds and Pathogens in Selected Hawaii Soils for Land Application of Wastewater
SPONSOR: National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD: 3/1/03 – 2/28/06 ABSTRACT: Mobility of viruses, bacteria, and other wastewater contaminants (including hormones) in subsurface media and their arrival in groundwater can have public health as…
Wind-Powered Reverse Osmosis Water Desalination for Pacific Islands and Remote Coastal Communities
SPONSOR: US Bureau of Reclamation (USBR) PROJECT PERIOD: 10/01/04 – 06/30/06 ABSTRACT: Water and energy are closely linked natural resources – the transportation, treatment, and distribution of water depends on low-cost energy; while power generation requires large volumes of water.…
Application of Innovative Methods and Strategies to Differentiate Sewage from Non-Point Source Pollution in Hawaii
SPONSOR: National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD: 3/1/04 – 2/28/06 ABSTRACT: The basic water quality problem in the state of Hawaii is related to the fact that fecal indicator bacteria (fecal coliform, E. coli,…
The Dynamic Effects of Native Versus Non-Native Vegetation on the Ecohydrology of a Hawaiian Rainforest
SPONSOR: National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD: 3/1/2005 – 2/28/2006 ABSTRACT: As populations increase and the demand for water rises, so does the need for informed sustainable resource management. In Hawai’i, one particular concern…
Stormwater Education on US Army Installations on Oahu
SPONSOR: USGS PROJECT PERIOD: 09/15/05 – 09/14/07 ABSTRACT: Water quality measurements within storm drain discharge locations on military bases on Oahu indicated that the Army would not meet standards for (a) Total Suspended Solids (TSS); (b) Nitrogen (N); and (c)…
National Coastal Assessment and Monitoring Program (EMAP) Continuing Assessment of Hawaii’s Estuaries and Coastal Waters: Phase II
SPONSOR: Hawaii Department of Health PROJECT PERIOD: 12/23/05 – 04/22/07 ABSTRACT: We assisted the state in preparing and developing phase 2 of the Environmental Monitoring and Assessment Program (EMAP), which included continuation of an earlier assessment of the physical, biological,…
Evaluating the Effectiveness and Feasibility of Commercial Ozone Technologies Used for Sanitation of Work Area and Laundry Services
SPONSOR: U.S. Army PROJECT PERIOD: 09/01/05 – 12/31/06 ABSTRACT: The primary goal of this study was to obtain independent, laboratory-based, performance data to evaluate the effectiveness, feasibility and safety in the application of one commercial ozone technology (Ozone Industries, Inc.)…
Diffusive Tortuosity of Reactive Porous Media: Application to Colloidal Fouling and Biofouling During Membrane Filtration
SPONSOR: National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD: 3/1/2005 – 2/28/2006 ABSTRACT: Fouling in microfiltration (MF) and ultrafiltration (UF) processes has been extensively studied for the crossflow filtration technique in which the flow direction is…