SBR ) Offer an Efficient Wastewater Treatment

This paper describes the scientific principles of Darcy’s law and hydraulic resistance as they relate to the in-ground dispersal of onsite wastewater effluent. A clear understanding of how water moves into the ground via dispersal trenches is needed to facilitate proper system design and effect some standardization of dispersal trench sizing and design. Hydraulic conductivity of the media, hydraulic head, media layer thickness, and area of infiltration are key in determining water movement into the soil. Restrictive media layers, such as fines or biomat, are shown to control infiltration rates and long-term soil acceptance rates of septic tank effluent because of low hydraulic conductivity characteristics.