A septic tank takes raw sewage in, allows the solids to settle (sludge) and allows the remaining liquid to flow into the surrounding soil by means of a soakaway. Scum on the surface is also prevented from leaving the tank. Microorganisms in the anaerobic environment in the tank digest the sludge and... scum. The system consists of several stages, supply to the tank, the tank itself and the soak field.
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In this guideline, natural ventilation is considered
among one the effective measures to control infections in health care. This guideline provides
a design and operation guide for hospital planners, engineers, architects and infection control
personnel. The recommendations in this guidelin...e followed a systematic
review of the literature on the association of ventilation and disease transmission, as well
as effective natural ventilation solutions for infection control.
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Emerging Infectious Diseases • www.cdc.gov/eid • Vol. 19, No. 9, September 2013
This manual provides information and guidance for individuals concerned with the mental health needs of children who experience major disasters. This background, training, and experience will vary and may include health and mental health professionals, professional and paraprofessional social servic...e personnel, school and daycare personnel, clergy, volunteers, and parents.
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Glob Health Sci Pract February 1, 2014 vol. 2 no. 1 p. 103-116
Disability Fact Sheet #13 (FS13)
"The Emergency Response Guidelines for Anhydrous Hydrogen Fluoride (Guidelines) were prepared
by the American Chemistry Council’s (ACC) Hydrogen Fluoride Panel (Panel). This document is
intended to provide general information to persons addressing an emergency response in the course
of handling... and transporting anhydrous hydrogen fluoride (AHF)."
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Let’s make Disability visible in the fight against HIV