Which of the following types of systems can have effluent discharges?

Effluent discharges refer to the wastewater that is released from a treatment system after it has been processed. In the context of septic systems, several types of treatment systems are specifically designed to manage wastewater and allow for effluent discharges in various controlled manners.

Buried sand filters operate by passing wastewater through a layer of sand, which filters the effluent and allows for its discharge, typically to a suitable drainage or dispersion area. This method can adequately treat the effluent before it is released into the environment.

Aerobic treatment plants utilize aerobic bacteria to break down the organic matter in wastewater. These systems are designed to treat effluent effectively, often improving water quality before discharging it. The treated effluent can be released into a designated area or reused for purposes such as irrigation, depending on the local regulations.

Waste stabilization ponds are large, shallow bodies of water where wastewater is treated through natural processes involving algae and sunlight. These systems can also allow for effluent discharge after treatment, managing the flow of water in such a way that it meets regulatory standards for contaminants.

Since each of these systems is capable of discharging effluent after treatment, the answer includes all types listed, confirming that they are each valid options for allowing such discharges. This understanding