Wastewater treatment comprising seven stages include physical treatment (large solids separation of heavy particles and decanting) three biological treatments (degradation of organic matter) and a chemical treatment that involves chlorination. Also includes a sludge collection phase. The system achieves an average treatment efficiency of 95% in terms of total suspended solid (TSS) and biochemical oxygen demand (BOD) complying with the Mexican standard 001-SEMARNAT-2009.
• Clean technology with zero power consumption To meet the specifications of "slope" the system works by gravity. • Average cost per cubic meter of treated water equivalent up to a fifth of the cost of other systems. • The system works with flows from one room house to communities of 50000 inhabitants. • Average efficiency of 95 % in terms of TSS and BOD. Complies with NOM - 001 -SEMARNAT 1996 standard. • Very simple operation (open and close gates system periodically). The system does not require highly skilled personnel and expensive to operate. • Very low cost of operation and maintenance. The system does not require spare parts or consumables and does not require highly specialized operation. • Modular and flexible system. It is possible to increase the installed capacity or quality of effluent to increase some elements to the system. • Sustainable system that generates products of economic value: the Typha plant can be used to manufacture woven handicrafts. • A green area with constructed wetlands...