Filters to Equalize Flicker noise

Hi,

I have been acquiring data between 0.1 to 50 KHz using an ADC and saving data to computer. From plotting the data in Matlab and looking at the FFT (via fvtool), I noticed that I have flicker noise (fc = 1Hz estimate), I was wondering if there are simple algorithms (libraries, functions) in Matlab to help me equalize the noise across the frequency range say via a FIR filter (or multiple FIR filters) so that I can port it to the embedded system. Any advice or links to algorithms related to flicker noise would be appreciated too (as I can't seem to find many online), also I am wondering if there any trade-offs of using equalization and if they would impact my signals of interest considering this is post-processing.

PS: for my project, my goal is to have a flat noise bed across this frequency range (Fs = 128KHz)

Thank you.