Hello,
First the DV is a debt validation - when you contact the credit reporters, or the credit reporting agencies and ask them to validate a debt for whatever reason.
As for student loans - you can contact a student loan lender such as citibank and ask to get all of them consolidated into one loan. You will need to have the current interest rate, and the lender information for all your loans to do this, so make sure you have all the information together to do it.
Secondly, you need to be out of school and currently in repayment (post 6 months of school) to qualify for the consolidation. It will extend all your loans out a lot, possibly to 20 years, so it would be in your best interest to pay more than the minimum amount whenever you can to elimante the excessive interest that will add up over the years.
Hope this helps