A low-cost and easy-to-use water recirculation system for a condenser apparatus was designed and installed in an organic chemistry teaching laboratory. Relying on gravity and a small pump for water circulation, it supplies four stations simultaneously. The water recirculation system works very well with condensers used for distillation and reflux…

Safe and high-quality water is essential from both the health and environmental perspectives. Water quality is so important that the United Nations has included water in the 17 Sustainable Development Goals of the 2030 Agenda for Sustainable Development. Thus, the adequate control and treatment of water are necessities. These tasks must be…

This military-developed text contains the first section of a four-part course to train environmental support specialists. Covered in the individual course blocks are basic mathematics necessary to the study of waste processing and water analysis as well as waste and waste processing and water and water analysis (basic chemistry, air forced water…

Secondary vocational-technical education programs in Mississippi are faced with many challenges resulting from sweeping educational reforms at the national and state levels. Schools and teachers are increasingly being held accountable for providing true learning activities to every student in the classroom. This accountability is measured through…

This manual is the second volume in a series of publications on community development programs. Guidelines are suggested for small-scale water projects that would benefit segments of the world's urban or rural poor. Strategies in project planning, implementation and evaluation are presented that emphasize environmental conservation and promote…

This checklist offers tips and resources to help schools identify opportunities to "green" their buildings and operations, focusing on common-sense improvements that schools can make in their daily operations to minimize or stop potential health and environmental problems before they start. The first section discusses the benefits of a…

This document provides a brief overview of the environmental issues that affect Kansas public schools. Specific programs that address these problems are included, along with their contact information. This document contains information on the following issues and programs: (1) Department of Health and Environment; (2) air; (3) asbestos; (4)…

This study examines the effects of a place-based intervention program on the sense of place of Bedouin elementary school students. These students live on the banks of the polluted Hebron Stream in Israel, where a three-pronged restoration program has recently been established, including the stream's rehabilitation, the establishment of local waste…

Least-cost health strategies designed to attack the world's leading causes of unnecessary death are explored. Section 1 emphasizes the value of primary health-care procedures--midwifery, maternal education on breastfeeding and weaning, vaccinations, oral rehydration of victims of diarrhea, and antibiotics against respiratory infections--in…

Environmental Sciences Technology T272 is a course with a laboratory addressing problems in soil and water quality and organic wastes utilization to serve students from associate degree programs in laboratory science and environmental resources management at a 2-year technical college. Goals are to build basic lab skills and understand the role…

A small-scale wastewater cleaning plant is described that includes the key physical pretreatment steps followed by the chemical treatment of mud by flocculation. Water, clay particles, and riverside deposits mimicked odorless wastewater. After a demonstration of the optimization step, the flocculation process was carried out with iron(III)…

Green is often used as a synonym for environmental or ecological, especially as it relates to products and activities aimed at minimizing damage to the planet. Scientists and engineers have long had important roles in the environmental movement. Their expertise is focused on a variety of issues, including increasing energy efficiency, improving…

The management of waste materials has become more complex with the increase in human population and the development of new substances. This illustrated booklet traces the history of waste management and provides guidelines for individuals and communities in disposing of certain hazardous wastes safely. It addresses such topics as: (1) how people…

This military-developed text contains the third section of a four-part course to train environmental support specialists. Covered in the individual sections are field sanitation, classes and sources of waste, composition and characteristics of sewage, principles of sewage treatment, primary waste treatment, secondary waste treatment, tertiary…

Appropriate technology options for sewage management systems are explained in this four-chapter report. The use of appropriate technologies is advocated for its health, environmental, and economic benefits. Chapter 1 presents background information on sewage treatment in the United States and the key issues facing municipal sewage managers.…