What database platform better at scaling?
Any of the big RDBMS systems or NoSQL systems can handle that sort of data load.  Back in 2002 I had a database table with 1B records in it that got more than 100k records a day, and that was running SQL Server 2000.  The systems today are much faster (both the hardware and the software) and should be able to handle that load going in with no problem.  The big problem becomes getting the data out, and having the data indexed properly to find it based on how you want to search.  And having enough memory to load the data into cache to find it faster.