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.:
aeration alga algae and bacteria bacterias biologic biology circle circuit circuity clean cleaning clear clearing concrete depurate detail deter detergent dirty discharge eco ecological ecology effluent effluents engineering environment environmentally flocculation flow friendly grass green grow growing growth health icon icons life mirror modern nature organic photo pipes plant plants pollution pond pool public purified purify purifying recycle regeneration removal rotation round safe sanitary sanitation separation settle sewage sewerage sludge smelly solids technical treat treatment tree turbidity waste wastewater water