Remove Replacement character "�" from the search results

[uttam Dhakal]

Hello,
I want to remove certain characters from the search result. Image of what I now 
get (and want to avoid) is attached in this email.
My impression is I need to write an "updaterequestprocessor", is there any 
built-in class specific for this need? Closest class I found which matches the 
description is "IgnoreFieldUpdateProcessorFactory" but I am not sure about this.
Any help on how to do this will very helpful as I am very new to Solr.
Thank you very much
Sincerely,Uttam Dhakal