Wastewater Treatment Plant fill-in

1.​ (a)   ​

• Underground pipes carry waste to treatment plant
• Large debris filtered out byscreens, goto landfill
• Solid waste (sludge) settles to bottom of tanks
• Bacteria breakdown organic material
• Sludge thickened by removing water.
• Thickened sludgeto landfill, burned, or fertilizer
• Exposure to chemicals or UV light kills pathogens
• Treated water released into river or lake.

2.​ (a)   ​

• Large debris filtered out byscreens, goto landfill
• Solid waste (sludge) settles to bottom of tanks
• Bacteria breakdown organic material
• Sludge thickened by removing water.
• Thickened sludgeto landfill, burned, or fertilizer
• Exposure to chemicals or UV light kills pathogens
• Treated water released into river or lake.
• Underground pipes carry waste to treatment plant

3.​ (a)   ​

• Solid waste (sludge) settles to bottom of tanks
• Large debris filtered out byscreens, goto landfill
• Bacteria breakdown organic material
• Sludge thickened by removing water.
• Thickened sludgeto landfill, burned, or fertilizer
• Exposure to chemicals or UV light kills pathogens
• Treated water released into river or lake.
• Underground pipes carry waste to treatment plant

4.​ (a)   ​

• Bacteria breakdown organic material
• Large debris filtered out byscreens, goto landfill
• Solid waste (sludge) settles to bottom of tanks
• Sludge thickened by removing water.
• Thickened sludgeto landfill, burned, or fertilizer
• Exposure to chemicals or UV light kills pathogens
• Treated water released into river or lake.
• Underground pipes carry waste to treatment plant

6.​ (a)   ​

• Thickened sludgeto landfill, burned, or fertilizer
• Large debris filtered out byscreens, goto landfill
• Solid waste (sludge) settles to bottom of tanks
• Bacteria breakdown organic material
• Sludge thickened by removing water.
• Exposure to chemicals or UV light kills pathogens
• Treated water released into river or lake.
• Underground pipes carry waste to treatment plant

5.​ (a)   ​

• Sludge thickened by removing water.
• Large debris filtered out byscreens, goto landfill
• Solid waste (sludge) settles to bottom of tanks
• Bacteria breakdown organic material
• Thickened sludgeto landfill, burned, or fertilizer
• Exposure to chemicals or UV light kills pathogens
• Treated water released into river or lake.
• Underground pipes carry waste to treatment plant

7.​ (a)   ​

• Exposure to chemicals or UV light kills pathogens
• Large debris filtered out byscreens, goto landfill
• Solid waste (sludge) settles to bottom of tanks
• Bacteria breakdown organic material
• Sludge thickened by removing water.
• Thickened sludgeto landfill, burned, or fertilizer
• Treated water released into river or lake.
• Underground pipes carry waste to treatment plant

8.​ (a)   ​

• Treated water released into river or lake.
• Large debris filtered out byscreens, goto landfill
• Solid waste (sludge) settles to bottom of tanks
• Bacteria breakdown organic material
• Sludge thickened by removing water.
• Thickened sludgeto landfill, burned, or fertilizer
• Exposure to chemicals or UV light kills pathogens
• Underground pipes carry waste to treatment plant