In this paper, a field study was carried out to examine the effect of flue gas desulfurization (FGD) by-product on water quality at an underground coal mine in central-eastern Ohio. Flue gas desulfurizalion by-product was injected into the down-dip portions of the Robert-Dawson mine in an attempt to seal major seeps exiting the mine and to coat exposed pyritic surfaces. Immediately following grout injection, significant increases in acidity, iron, aluminum, sulfur, and calcium were observed at most surface and ground water locations near where grouting was carried out. Following this initial flush of elements, concentrations of most constituents have decreased to near pre-grouting levels. Data from the site and geochemical modeling suggest that an increase in water level or rerouting of drainage flow resulted in the dissolution of iron and aluminum sulfate salts and ferrihydrite. Dissolution of the FGD grout material resulted in increases in calcium and sulfate concentrations in the drainage waters. Water within the mine voids was saturated with respect to calcium sulfate and gypsum immediately following grout injection. Based on an analysis of core samples obtained from the site, acid mine drainage (AMD) was in contact with at least some portions of the grout and this resulted in grout weathering. Subsequent transport of calcium and sulfate to the underclay, perhaps by fracture flow, has resulted in the deposition of gypsum and calcium sulfate solids.

Aluminum Silicates↗

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Computer-based education for patients with psychosis.

AIM: To evaluate the use of a computer-delivered psycho-education programme which tries to improve patients' knowledge and understanding of psychosis. METHOD: The study used a qualitative approach to gather opinions from participants (n=10) using semi-structured interviews. FINDINGS: The results indicated that patients in forensic psychiatry were able to use the CD-ROM with relative ease. They found it acceptable and enjoyable to use and had little difficulty working through the programme and developing their own relapse prevention plan. CONCLUSION: The study suggests that patients with psychosis are willing to try new ways to learn about their illness and enjoy learning about a complex and sensitive subject. CD-ROM is a useful way to deliver information on psychosis, which may appeal to the younger patient population, who are more familiar with computer technology.

CD-ROM↗

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A visit with The Healthcare Forum's incoming chair. Interview by Steve Heilig.

Explore the source record for details and available documents.

Arizona↗

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Wellness: the mode in the new paradigm.

A fundamental paradigm shift is occurring in the health care field that gives new hope to the challenge of reducing health care costs through the promotion of wellness. The authors of this paper present the present components of the new paradigm, the historical aspects of the paradigm shift, and examples of the paradigm shift in community health. The authors have also attempted to suggest ways in which individuals and communities can participate in the new paradigm.

Community Health Services↗

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