Comment Go back, start over. Way back. (Score 1) 221
Also, you're going to be waving a huge net around and hope to only get close enough to things that are traveling at speeds which are only slightly different. Somehow you have to not catch working equipment, and not get smacked by something in a path at 90 or 180 degrees. That's worse than praying for a magical 18,000 carom path.
When you do catch something, it's not going hit right in the center of gravity so your whole contraption goes spinning. The first time that happens, your net might close around what might be in it. But it won't stop without a lot of fuel. And if you don't stop it yet somehow manage to intercept something else the something else will hit the outside of your net purse and send it spinning in another direction. If you do stop the spinning and reopen the net, the movement of opening will push your catch out and away.
That's assuming you can actually catch anything. It's more likely that you'll blunder into the path of things moving in the wrong direction. Then the debris will be increased by bits of stuff that got hit, followed shortly by whatever is torn off by the stresses of the net trying to head off in another direction (assuming your net got hit and not your garbage trawler).
Go look up the designs which others have done. Nets which are intended to vaporize or slow debris, electromagnetic drives, including deorbiters on new satellites.
And, no, don't think Quark. Think Planetes.