<prompt> Translate the following text to EnglishKwa sababu ya matumizi ya makaa ya mawe ya subbituminous, na kwa sababu ya matumizi ya umeme wa umeme, ni muhimu sana kuondoa uchafuzi wa hewa na kuondoa uchafuzi wa hewa.  <response>: A boiler firing subbituminous coal and with only an ESP for particle collection and pollution control will require the most activated carbon consumption and the most steel for the ACI system. 