water treatment at the avenue. the avenue coke works processed coal to produce coke coke used as a...
TRANSCRIPT
Water treatment at the Avenue
The Avenue Coke Works
• Processed coal to produce coke
• Coke used as a smokeless fuel and in the steel-making industry
• Wastes from the process left behind when the works closed in 1992
Contaminated water
• Large ponds or lagoons containing oil-contaminated water
• Rainwater run-off collected from working areas
Water treatment plant
• Contaminated water is cleaned at the water treatment plant
Water treatment plant
• Dirty water is collected
• Oil is skimmed off from the surface
• Sediments are allowed to settle out
Water treatment plant
• Water pH is adjusted before it enters the biological treatment tank
• Microbes digest contaminants in the water
• Air is pumped in to help this process
Water treatment plant
• Water is further filtered to remove any remaining contaminants
• Large ponds contain clean water ready to be used around the site