| 主权项 |
1. A wastewater treatment plant (WWTP) comprising:
a preliminary treatment station configured for receiving a wastewater fluid and screening thereof to prevent larger objects from passing further downstream; a primary settling clarifier arranged downstream of the preliminary treatment station and configured for receiving the wastewater fluid leaving the preliminary treatment station, and separating it into a primary sludge and a primary effluent; an aeration tank configured for receiving the primary effluent leaving the primary settling clarifier, and treating said primary effluent in the presence of air pumped into the aeration tank, thereby to produce an aerated wastewater effluent; a secondary settling clarifier arranged downstream of the aeration tank, and configured for receiving the aerated wastewater effluent leaving the aeration tank, and separating it into waste activated sludge and a secondary wastewater effluent; an electrical discharge system configured for (i) receiving at least a part of at least one wastewater fluid selected from said primary sludge and said waste activated sludge, and (ii) generating a glow-to-arc voltage transient arcing electric current pulse through said at least one wastewater fluid to create an electro-hydraulic shock wave within said at least one wastewater fluid accompanied by a high electric field, intensive heat and light radiation; and an anaerobic digester arranged downstream of the electrical discharge system configured for receiving the wastewater fluid treated by the electrical discharge system and further degrading it by anaerobic digestion, thereby to provide by-product gases and digestate. |
