News last update:Dec 20, 2006

Constructed wetlands may help reduce hormones in wastewater

According to a report by a team of Agricultural Research Service-led members, constructed wetlands may help reduce hormones in wastewater from hog farms.

Constructed wetlands are been incorporated into wastewater treatments with the aim of reducing nitrogen and phosphorus in the effluent, which can be spread onto crop fields without causing environmental harm. However, insufficient research has investigated the system's potential to diminish hormones that pigs excrete into wastewater.

The work combines concerns over the effect that hormones from livestock waste and other sources have on the environment, in particular, the negative effect it may have on the endocrine-system function of fish and other aquatic life.


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