| 摘要 |
The present invention is directed to a system and method which recycles waste so that the effluent coming out of the system actually equals a potable water standard with essentially no contaminated sludge. In one embodiment, the solids in wastewater are subjected to aeration and enzymes in a digester for a period of time. The cleanest portion of the water from the digester is then clarified. Sludge, as well as scum, from the clarifier is vacuumed back to the digester. Clear water from the clarifier is delivered to a Recycling stage for filtering to remove suspended solids down to 5-microns. When the recycling process housing reaches saturation, a back-flushing process with clean water sends all of the captured suspended solids back into the Digester. The effluent, other than during back-flushing, from the Recycler is then passed through: 1) a water purification process to remove parasites; 2) a treatment to reduce hazardous chemicals; and 3) a UV (or other non-hazardous process) to remove, kill or inactivate all bacteria and viruses, all without producing sludge. The output from this final state is potable water. In one embodiment, a single final stage can serve multiple digester/clarifier stages. |
