Wisconsin Mound Soil Absorption System and Area FillPractice Exam

What type of dosing can be utilized for trenches in an area fill mound?

1. Gravity dosed only

2. Surge dosed only

3. Both gravity and surge dosed

4. None of the above

The correct answer is: Both gravity and surge dosed

Utilizing both gravity dosing and surge dosing for trenches in an area fill mound allows for flexibility and efficiency in managing wastewater. Gravity dosing relies on the natural force of gravity to move wastewater through the system, which can ensure a steady flow and minimize the energy needed for pumping. This method can be particularly advantageous in environments where the topography permits a downhill flow to the absorption area. On the other hand, surge dosing involves periodically dosing a larger volume of wastewater over a shorter time frame to mimic natural biological processes. This can help improve the treatment efficacy of the soil absorption system by allowing for intermittent saturation of the soil. The surge dosing can enhance the performance of the mound by promoting better aeration and biological treatment as the system cycles between periods of saturation and drying. Combining both dosing methods can lead to optimal performance and a more robust treatment system, ensuring that the system can handle varying flows and conditions that might be encountered in practical applications. This versatility makes the use of both dosing techniques suitable and sometimes necessary in maintaining effective treatment in area fill mound systems.