Science Inventory

MANUAL - CONSTRUCTED WETLANDS TREATMENT OF MUNICIPAL WASTEWATERS

Citation:

Brown*, D S., J F. Kreissl*, R. A. Gearhart, AND et al. MANUAL - CONSTRUCTED WETLANDS TREATMENT OF MUNICIPAL WASTEWATERS. EPA/625/R-99/010 (NTIS PB2001-101833), 2000.

Impact/Purpose:

Information

Description:

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: polishing conventionally treated wastewater, holding and treating storm water, treating industrial or agricultural wastewater, and treating acid mine drainage and landfill leachates. The new USEPA manual is entitled, "Constructed Wetlands Treatment of Municipal Wastewaters." The scope will be limited to constructed wetlands designed and built as the major unit process in a system to treat municipal wastewater. Wastewater always requires some pre-treatment and different types of post-treatment to meet most stream discharge or reuse requirements, but the wetland comprises the major treatment component. This manual discusses the capabilities of treatment constructed wetlands, a functional design approach, and the management requirements to achieve their designed purpose. The manual also attempts to put the proper perspective on the appropriate use, design and performance of constructed wetlands. For some applications, they are an excellent option because they are low in cost and in maintenance requirements, offer good performance, and provide a natural appearance, and ecological benefits. In other applications, such as large urban areas with large wastewater flows, they are not at all appropriate owing to their land requirements and mosquito-breeding potential. Constructed wetlands are especially well suited for wastewater treatment in small communities where inexpensive land is available and skilled operators hard to find and keep.

URLs/Downloads:

MANUAL - CONSTRUCTED WETLANDS TREATMENT OF MUNICIPAL WASTEWATERS

Record Details:

Record Type: DOCUMENT (PUBLISHED REPORT/MANUAL)
Product Published Date: 09/25/2000
Record Last Revised: 08/24/2011
OMB Category: Other
Record ID: 64144

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL RISK MANAGEMENT RESEARCH LABORATORY

TECHNOLOGY TRANSFER AND SUPPORT DIVISION

TECHNOLOGY TRANSFER BRANCH