The operator of the crippled Fukushima Daiichi nuclear power plant on Tuesday completed its seventh round of treated radioactive water discharge into the ocean. Tokyo Electric Power Company Holdings Inc. released around 7,800 tons of water in the latest round, which started on June 28, with the operator saying no abnormal tritium levels were detected in nearby waters. While the latest water release is the seventh overall, it marked the third of seven discharge rounds planned for fiscal 2024. Prior to discharge, water used to cool melted fuel at the plant is passed through an advanced liquid pr…