The accounts affected by your BK filing should drop-off after seven years, under the normal course of business. You will want to ensure that they correctly show "Discharged through Bankruptcy." If they do not, you should dispute them, because they are adding to your injury and double-counting against you. If the CRA cannot verify the status of the account within 30 days, the account could come off sooner.
Be diligent in monitoring your report after bankruptcy to ensure that all accounts are correctly reported. Errors can work in your favor. Also, be sure to keep copies of all of your bankruptcy documents in case you need to prove an item was indeed included in your petition. Good luck!