Bubble Barrier Could Clean Up Lansing’s Grand River

Researchers at Grand Valley State University and Michigan State University are exploring the potential installation of a bubble barrier in the Grand River, which would be the first in the U.S.

A bubble barrier is a perforated tube across a waterway that pumps air to create an upward curtain of bubbles, pushing trash to the surface where it flows into a catchment system. Current barriers in the Netherlands and Portugal capture up to 86% of floating plastic, including microplastics. The Amsterdam barrier collects nearly 180 pounds of trash monthly.

Preliminary studies are examining river flow patterns, seasonal changes, and types of plastics present. Researchers will also study potential ecological impacts, including sediment disturbance and effects on phytoplankton, zooplankton, and fish, noting that microplastics could enter the food chain.

Beyond cleanup, the project aims to raise awareness, engage the community, and provide educational opportunities about plastic pollution, with citizen surveys and art installations planned. The installation timeline depends on study results and funding.

05-01-2026