dear editor,<br /><br />I have a question. In one of your edited sentences in the following (see your comment 1), the question was to answer when was teh project conducted..., that is the reason I used past tense, not future tense. Can you check if the following sentence has free of errors?<br /><br />"Part of the project was conducted at ----<br /><br />Also, I forgot to include a title. Would you mind checking the following title to see no errors?<br /><br />Title: <b>Recovery of metal iron in waste </b><b> sludge </b><b>for enhancing bioenergy<br /><br />many thanks</b>