Advanced Enviro-Septic™ (AES) wastewater treatment has been installed on systems ranging from 280 litres per day on National Trail toilets to a 200,000 litre per day system (with 50% reuse) servicing the holiday village on the shores of Lake Sunapee, the largest fresh water lake in North East America.
Its ability to handle large variations in daily loading without chemical or mechanical intervention is a perfect solution for community facilities, recreational areas, camping grounds and small towns.
The largest sewage system installed to date is at Blodgett Landing in New Hampshire (US) which is scaled to treat the wasteflow from over 200, 3 bedroom houses.
The existing sand filtration beds were upgraded to AES in 2011. While having to comply with the ground-water discharge standards as set by the US Environmental Protection Agency (EPA), the system also had to handle substantial seasonal load variations from tourism.
In August 2013, when the plant operation was reviewed as a condition of the consent of 2011 and the licence renewed, the interval between tests was increased as the testing regime for the previous 2 years had produced consistently high quality results in excess of those specified.
Many community facilities are located in remote regions and non-sewered locations. An added complication is they are often subject to substantial variations in effluent loads. With design, AES can be combined with additional stages of treatment to facilitate affordable water reuse options to A+ standards.
For a case study on Blodgett Landing – click here