You don't need that Sallen-Key filter before your amplifier if you are already filtering with the input RC high-pass filter. 

You can simply AC couple the input, bias the amp and gain it up. 



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Some key things to note from this circuit: 

The input RC filter in your original circuit had a cutoff \$F_c\$ of 1 Hz but your text said 0.5Hz. 0.5Hz is actually better, so I kept that and changed the 0.1μF input capacitor to 0.22μF. 

$$F_o(R1C1) = {{1}\over{2 \pi R1 C1}} = {{1}\over{2\pi(220nf)(1.6M)}} \approx 0.5Hz $$

Note that the RC combination of R2C2 with the opamp forms an active high-pass filter which should equal or be close to R1C1:

$$F_o(R2C2) = {{1}\over{2 \pi R2 C2}} = {{1}\over{2\pi(68μF)(5K)}} \approx 0.5Hz $$

Unfortunately, this means a fairly large C2 capacitor, because you need to balance that against R2 and the gain of the op-amp that you want (G=100). 

You might be able to get around that by using two gain stages x10 of equal design. This way you can use larger R2 values and thus a smaller C2. For example, x10 would be R3=200k, R2=22k, C2=15μF, and you need two of them. 

Also note that the LM324 cannot reach the top rail, so it will clip with such a high gain. You should use a better rail-to-rail output amp when working with 3.3V 

EDIT: Oh, on further review, I think I see you want to follow the input high-pass filter @ \$F_c\$ = 0.5Hz with an active low-pass filter with \$F_c\$ = 5Hz, with the goal of making a bandpass filter out of the two.