Consultation on the imbalance of anaerobic and aerobic reaction elements in the wastewater treatment module

Hello, when I called the wastewater treatment system through the code ```wwt_sys = create_conventional_wastewater_treatment_system(ins=[stream1, stream2], mockup=True)```, I found that the elements of anaerobic reaction and aerobic reaction were unbalanced. Taking ```Furfural``` as an example, the aerobic reaction is ```Furfural + 3.85O2 -> 1.54 Water + 0.948 WWTsludge + 3.85CO2```. The molecular formula of ```WWTsludge``` is ```CH1.64O0.39N0.23S0.0035```, but the C,H,O,N and S elements of the above equation are not balanced.

In addition, there is no sulfur element in the input of the process, but because WWTsludge contains sulfur element, there is ```SO2``` in the emission stream of the boiler, which also leads to the element imbalance of the process.

Thanks for your help. Wish you a good day.