The industries work already to treat the sewage properly, offering solutions as:

• pumps,
• tanks,
• clarifiers,
• bar screen and automated mechanically raked bar screen,
• plants and landfill,
• incinerators;
• grit and grit removal as sand, stones and broken glas;
• grit chambers (horizontal, aerated, vortex),
• flow equalization,
• biological treatment (aerobic),
• trickling filters,
• bio-towers,
• rotating biological contactor,
• membrane bioreactor,
• aerobic granulation,
• aerated lagoon,
• activated sludge,
• sand filtration,
• activated carbon, etc.