An installation using combination treatment and dispersal piping clears the way for a property owner to create a new onsite system and sell her home. He found his solution in the Advanced Enviro-Septic (AES) system from Presby Environmental. The non-mechanical passive system uses combination treatment and dispersal pipes. Besides being the first installation of its kind under new state regulations allowing alternative technologies, the system saved the owner thousands of dollars over conventional designs and enabled the property to be sold.
Wastewater and groundwater
Nearly 25 percent of the population in the United States—in more than 25 million homes—disposes of wastewater through onsite, or unsewered, systems that return treated effluent to the ground. This is an important public health issue because many of those same homes use wells that rely on groundwater for the drinking water supply. With unsewered systems, homeowners are responsible for treating and maintaining the disposal of wastewater. Most are typically found where centralized wastewater treatment...
Start-up phase of a UASB-septic tank used for high strength municipal wastewater treatment in Mexico
The objective of this work was to assess the performance during the start-up phase of a Upflow anaerobic sludge blanket (UASB)-septic tank for municipal wastewater treatment in Mexico City. A lab scale UASB-septic tank (62 L total volume, acrylic), consisting of three chambers treated high strength municipal wastewater at ambient temperature (16 °C–24 °C), under 72 h Hydraulic retention time (HRT) during three months. Total and soluble chemical oxygen demand (COD), total biological oxygen demand (BOD5), total...
Case Study - Groundwater Discharge Permit - Plymouth, Massachusetts
The process of obtaining a groundwater discharge permit for a subdivision scale septic absorption system was faciliated by using the advanced GIS features within EnviroInsite. Geologic features were downloaded and presented at the site scale along with the subdivision boundary and potential downgradient receptors. A cross-section was created showing the detailed soil descriptions, water levels were contoured, and the post-construction water levels shown by superimposing the calculated water table mound.
Septic shouldn’t be a Nightmare for a Dream Home
ProblemIn January of 2002, a couple in Homosassa Springs, Florida (near Orlando) had big plans for large new dream home. They had torn down their old Florida “vernacular” home design, or commonly referred to as the “Cracker Style.” They had major setbacks from the beginning due to the lot size and location; they also began construction without out the proper permits and knowing all that was involved with upgrading their septic system. When they applied for their building permit, they were...
Load limit of a UASB fed septic tank-treated domestic wastewater
Performance of a 250 L pilot-scale up-flow anaerobic sludge blanket (UASB) reactor, operated at ambient temperatures, fed septic tank effluents intermittently, was monitored for hydraulic retention time (HRT) from 18 h to 4 h. The total suspended solids (TSS), total chemical oxygen demand (CODT), dissolved chemical oxygen demand (CODdis) and suspended chemical oxygen demand (CODss) removal efficiencies ranged from 20 to 63%, 15 to 56%, 8 to 35% and 22 to 72%, respectively, for the HRT range tested. Above 60% TSS...