Keywords: Activated Sludge 1.svg This is an upgraded version of en Aerated Sludge 1 jpg which was uploaded by Kekel on July 4 2006 The reasons for upgrading the image are 1 To convert the lossy jpg which already has visible artifacts to the non-lossy png format 2 To shorten the width of the image from 417px to 300px so that it can placed on the right side of a Wikipedia article and still have room for the article text 3 To rename it from Aerated Sludge 1 to the more appropriate Activated Sludge 1 since it is now and will continue to be used in the en Activated Sludge article The actual changes to the original version are quite minor and the actual appearance of the upgrade version is almost identical with the original I will retain the same license as used by the original uploader Activated_Sludge_1 png 2008-11-06 23 53 UTC derivative work LennyCZ <span class signature-talk >talk</span> Activated_Sludge_1 png Original uploader was Mbeychok at http //en wikipedia org en wikipedia Redrawn in SVG LennyCZ Activated_Sludge_1 png PD-user-w original upload log This image is a derivative work of the following images Image Activated_Sludge_1 png licensed with PD-user-w 2007-11-02T21 45 48Z File Upload Bot Magnus Manske 300x229 5343 Bytes <nowiki> en wikipedia This is an upgraded version of en Aerated Sludge 1 jpg which was uploaded by Kekel on July 4 2006 The reasons for upgrading the imag</nowiki> Uploaded with derivativeFX SVG chemical engineering Activated sludge |