Question

biogas contains ______% hydrogen oulphide​

Answer 1

Answer:

0.5-1 %

Explanation:

Answer 2

Answer:

first it is not oulphide it is Sulphide

However, biogas can contain, significant levels of another by-product, hydrogen sulfide (H2S), which can be found in the raw biogas at levels varying from 200 parts per million (ppm) to over