Epa manual constructed wetlands treatment of municipal wastewaters

EPA's Design Manual: Constructed Wetlands and Aquatic Plant Sys- tems for Municipal Wastewater Treatment () and the Water Pollution Control Federation Manual of Practice, Natural Systems for Waste-' water Treatment () assume that the reduc- tion of a specific water quality parameter, such as BOD, is a first order reaction and that con- centration .  · Constructed wetlands are man-made wastewater treatment systems. They usually have one or more cells less than 1 meter deep and are planted with aquatic greenery. Water outlet structures control the flow of wastewater through the system to keep detention times and water levels at the desired level. Constructed wetlands are used for many purposes: . tion, and maintenance of constructed wetlands for the treatment of domestic wastewater, agri-cultural wastewater, coal mine drainage, and stormwater runoff in the mid-Atlantic region, The Handbook is not a design manual. The use of constructed wetlands to improve water quality is a developing technology. Much is not yet.

there has been a growing interest in the use of constructed wetlands for wastewater treatment. Constructed wetlands treatment systems are engineered systems that have been designed and constructed to utilize the natural processes involving wetland vegetation, soils, and their associated microbial assemblages to assist in treating wastewater. Office of Water, Washington, DC U.S. EPA. September Process Design Manual— Constructed Wetlands and Aquatic Plant Systems for Municipal Wastewater Treatment. EPA // Center for Environmental Research Information, Cincinnati, OH U.S. EPA. October Report on the Use of Wetlands for Municipal Wastewater Treatment and Disposal. tion, and maintenance of constructed wetlands for the treatment of domestic wastewater, agri-cultural wastewater, coal mine drainage, and stormwater runoff in the mid-Atlantic region, The Handbook is not a design manual. The use of constructed wetlands to improve water quality is a developing technology. Much is not yet.

Mechanisms that dominate free water surface wetland systems. From U.S. EPA manual: Constructed wetlands treatment of municipal wastewaters (p. 44), Subsurface flow constructed wetlands and aquatic systems for municipal wastewater treat- ment. EPA//R/ Washington, D.C.. www.doorway.ru Design Manual. U.S. EPA. Constructed Wetlands Treatment of Municipal Wastewater. Manual. EPA. /R/; U.S. Environmental Protection Agency.