Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment

Constructed Wetlands for Wastewater Treatment

Constructed Wetlands for Wastewater Treatment: A Review

The first experiments on the use of wetland plants to treat wastewaters were carried out in the early 1950s by Dr. Käthe Seidel in Germany. The first full scale systems were put in operation during the late 1960s and since then constructed wetland systems have been spreading throughout the world. At present, there are several types of constructed wetlands used for wastewater treatment. Free wat...

Subsurface Flow Constructed Wetlands for Wastewater Treatment

Applications of Constructed Wetlands for Wastewater Treatment

During the past decades, the high cost of conventional treatment processes has produced much economic pressure and they are not as natural methods as we expected. Thus, engineers begin to search for some creative, cost effective, and environmentally sound ways to treat wastewaters. Constructed wetland is a man made system which provides us many benefits and it is a very attractive way for many ...

Reciprocating constructed wetlands for treating industrial, municipal and agricultural wastewater.

Scientists at the Tennessee Valley Authority (TVA), and in collaboration with the U.S. Environmental Protection Agency (EPA), are continuing to develop and refine an innovative wastewater treatment system referred to as reciprocating subsurface-flow constructed wetlands. Reciprocation relates to patented improvements in the design and operation of paired subsurface-flow constructed wetlands, su...