thanks for your clarification. While looking at your edited document, I have the following question. Can you please let me know soon after you see my message? I must submit it today.<br />In the following sentence, you changed passive voice to active voice, however, don't you think "separate" should be "is separated"? and also "cools" should be "is cooled"? I'm confused and need to clarify from your explanation.<br />thanks in adavnce<br />
<p>The ability of gas scrubbers to treat siloxanes in biogas indicates that siloxanes still remain in the absorbent (i.e., cold water or a carbohydrate solution) and separate from the biogas once it cools prior to entering the scrubber (Soreanu et al., 2011).</p>