Can activated charcoal be taken for long term on daily basis to control excessive abdominal gases?

No: Activated charcoal has it's place in the very limited management of certain overdoses in the Emergency Department. Other than that there is no scientific evidence it does any of the wondrous things advertised on the net. http://www.mensjournal.com/health-fitness/health/should-you-be-taking-activated-charcoal-supplements-20141202

Charcoal: In some cases, activated charcoal can help in controlling excessive abdominal gas. However, while there is no direct evidence that long-term use of charcoal is harmful, there is not any research to suggest it should be used as a long-term supplement indefinitely. There certainly would be concern that it could impair absorption of medications or supplements. Use it with caution. Good luck.