How would you separate soap bubbles from water?

well, add table salt to soapy water (trust me it works, i did a science fair project on this) and leave the salt/soap/water mixture for 6-8 hours or overnightand filter.

add. This is actually a serious problem as dairy cows get a condition commonly known as 'bloat' caused by excess foaming of stomach contents. Various remedies have been made to relieve this condition.