| 摘要 |
<p>An electrocoagulation method provides an electrochemical cell 12 including at least one cathode and at least one anode with a consumable surface, introducing a first liquid 26 into the electrochemical cell and passing a current between the anode and cathode, such that the consumable surface of the anode dissolves in the first liquid. The method provides conditions that allow a floc to form in the first liquid to provide a floc-containing-liquid. Subsequently, the floc-containing-liquid is held for a residence time to allow floc growth to occur and the floc-containing-liquid is then contacted with a second liquid 24. Preferably, the mixture of the floc-containing liquid and second liquid is treated to allow further floc growth to take place. Any floc formed in the second liquid is suitably subjected to a separation step. The first and/or second liquid may comprise seawater, brackish water, river water or wastewater. The pH of the first liquid can be adjusted before it enters the electrochemical cell. Suitably, the second liquid is subjected to a degassing step 16. The method may also include an aeration step. An apparatus or system is also claimed.</p> |
