蚯蚓当“管道工”缓解湿地堵塞难题 - 2018年10月17日

EARTHWORMS are helping to reduce clogging in artificial wetlands used to treat sewage in rural areas surrounding Shanghai.
Artificial wetlands are a low cost and technologically simple way to treat sewage. However, poor design and management can lead to clogging which results in pollution.
Research by the Shanghai Academy of Environmental Sciences, showed that a particular species of earthworm — Eisenia foetida — can effectively reduce clogging matter and dredge the wetlands.