5 steps to clean a polluted river
Answers
Answer:
The recent rain has greened up our lawns and gardens, but if we are not careful, it can also green up our urban lakes and rivers — and that's not good.
The storm drain on your street collects the water from your roof, driveway, and sidewalk and funnels it directly in your local lake or river. Nutrients from grass and leaves, pet waste, and fertilizers "enrich" our lakes and streams — feeding algae blooms and harming fish. Chemicals from washing your car in the drive and household chemical spills add up, taking a nasty toll on our favorite swimming areas and fishing spots. Soil can also be picked up by runoff, reducing the clarity of water and hurting fish.
So as you prepare your lawn and garden this year, here are a few helpful tips to keep our lakes and rivers beautiful and safe for all of us.
Use mulch and vegetation to keep soil from washing away.
Sweep or rake grass and leaves away from street curbs.
Mulch and compost grass clippings and leaves.
Keep paved surfaces to a minimum.
Capture water runoff with a rain garden and rain barrels.
Wash your car on the grass, where the water will get filtered.
Keep chemicals away from storm drains.
Collect your pet's waste.
Aim your rain-gutter downspouts onto grass.
Answer:
Dredging of the contaminated sludge from the river bad.
Handling it to the river banks for treatment.
Establishing sludge cleaning processes.
Converting it to useful soil.
If required extracting precious material out of the sludge