Document RevisionsRevisions to the IALA Document are to be noted in the table prior to the issue of a revised document.Date Page / Section Revised Requirement for RevisionDecember 2005 Entire document Reformatted to reflect IALA documentation hi

Types of Sewage Treatment: Activated Sludge Process Plant - Activated Sludge Process Plant is a process for treating sewage and industrial waste-water using air and a biological flock composed of bacterial and protozoa. In activated sludge process wa

Types of Sewage Treatment: Activated Sludge Process Plant - Activated Sludge Process Plant is a process for treating sewage and industrial waste-water using air and a biological flock composed of bacterial and protozoa. In activated sludge process wa