ID 75494685 © Nikonlike | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
aerating air bacteria basin biofilter biological blackwater bubbles canal channel clean container contaminated contamination dirty drain drainage ecology engineering environment filtration from industrial industry modern pipes piping plant plumbing pollution pool process processing recycle remove sanitary sewage sewer sludge station structure system tank technology treat treatment tube urban used waste wastewater water