Anaerobic Treatment
Anaerobic treatment is a biological process where microorganisms break down organic matter in the absence of oxygen. This process is commonly used in septic tanks to treat wastewater. In a septic tank, solids settle to the bottom and are partially decomposed by anaerobic bacteria, while the liquid effluent flows to a drainfield for further treatment and dispersal. Anaerobic treatment is a slower process than aerobic treatment, but it is still effective in removing a significant portion of the organic pollutants from wastewater.
Standard Gravity System:
A standard gravity drainfield, also known as a conventional or trench drainfield, is a common type of on-site sewage facility (OSSF) used for the subsurface disposal of pre-treated effluent. It can consist of different media such as pipe and gravel or leaching chambers. Gravity drainfields rely on the natural slope of the land and gravity to distribute the effluent throughout the trenches. They are typically used in areas with suitable soil conditions, such as sandy or loamy soils with good permeability.
LPD Systems:
A low pressure dose (LPD) drainfield uses a pump to distribute treated wastewater under low pressure through a network of small-diameter pipes, offering advantages over standard gravity-fed systems. LPD systems are more suitable for challenging soil conditions, provide more efficient and controlled effluent distribution, and often have a smaller footprint, making them ideal for smaller lots or areas with limited space. LPD’s are not soil dependent and can be installed in all three main classes of soils (II,III & IV).
Evapotranspiration Systems:
Evapotranspiration (ET) systems are a viable alternative for wastewater treatment in specific scenarios as they take advantage of evaporation and plant transpiration. They excel in areas with poor soil conditions like heavy clay and are efficient in regions with high evaporation rates, utilizing natural processes to dispose of effluent.