The Removal of Corn Debris From Wastewater

Wastewater treatment facilities have methods for removing trash and solid debris.

Dirty water is a known carrier of diseases and parasites. In regions with limited water sources, the treatment of dirty water is critical. Storm runoff, as well as home and industrial processes, generate wastewater that must be treated before it is released into the natural water supply. Corn debris is one example of a solid material that finds its way into wastewater systems.

Instructions

1. Keep the wastewater in a holding tank and allow enough time for denser particles and debris to settle to the bottom. Lightweight material will float on the surface. Treatment facilities refer to this process as clarification.

2. Skim floating kernels and cobs from the surface of the wastewater with a net or similar tool. Alternatively, the clarified water may be pumped through a screen that traps the floating material.

3. Pump the clarified wastewater into a fine cloth or mesh filtration system. This will remove much smaller dirt and particles that remain in solution.

4. Clean the bottom of the holding tank at regular intervals. Dispose of the solid waste appropriately.

Tips & Warnings

• Wastewater treatment equipment must be well maintained to function properly. Backwash and clean filters to ensure that the system can handle any surge of material.

• The harvest season represents the time of year when the highest concentration of corn debris is likely to enter the wastewater stream.

• Wear personal protective equipment when working with polluted wastewater. This includes, but is not limited to, gloves, mask, boots and face shield. Wastewater typically carries diseases and toxic runoff.

References

• United States Geological Survey: Water Science for Schools; Water Treatment -- Water Use
• Mountain Empire Community College: Wastewater Treatment Methods and Disposal
• Aqua-Aerobic Systems, Incorporated: Aquadisk