为了保护环境，我们应该怎样处理污水？
从十九年前建厂至今，污水一直排放到望虞河中。[{'character': '从', 'pinyin': 'cong2', 'highest pitch': 9.77, 'lowest pitch': 8.34, 'duration': 0.32, 'prosody hierarchy': '#2'}, {'character': '十', 'pinyin': 'shiii2', 'highest pitch': 10.41, 'lowest pitch': 9.75, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '九', 'pinyin': 'jiou3', 'highest pitch': 10.15, 'lowest pitch': 7.79, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '年', 'pinyin': 'nian2', 'highest pitch': 8.64, 'lowest pitch': 7.04, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '前', 'pinyin': 'qian2', 'highest pitch': 8.56, 'lowest pitch': 6.69, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '建', 'pinyin': 'jian4', 'highest pitch': 8.95, 'lowest pitch': 7.39, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '厂', 'pinyin': 'chang3', 'highest pitch': 7.39, 'lowest pitch': 4.8, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '至', 'pinyin': 'zhiii4', 'highest pitch': 7.07, 'lowest pitch': 5.38, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '今', 'pinyin': 'jin1', 'highest pitch': 8.72, 'lowest pitch': 6.25, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.38}, {'character': '污', 'pinyin': 'u1', 'highest pitch': 11.18, 'lowest pitch': 10.15, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '水', 'pinyin': 'shuei3', 'highest pitch': 10.49, 'lowest pitch': 5.74, 'duration': 0.28, 'prosody hierarchy': '#1'}, {'character': '一', 'pinyin': 'i4', 'highest pitch': 8.57, 'lowest pitch': 6.52, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '直', 'pinyin': 'zhiii2', 'highest pitch': 8.74, 'lowest pitch': 8.02, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '排', 'pinyin': 'pai2', 'highest pitch': 6.73, 'lowest pitch': 6.03, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '放', 'pinyin': 'fang4', 'highest pitch': 8.58, 'lowest pitch': 6.73, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '到', 'pinyin': 'dao4', 'highest pitch': 7.93, 'lowest pitch': 6.42, 'duration': 0.28, 'prosody hierarchy': '#2'}, {'character': '望', 'pinyin': 'uang4', 'highest pitch': 10.03, 'lowest pitch': 7.37, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '虞', 'pinyin': 'v2', 'highest pitch': 10.13, 'lowest pitch': 7.37, 'duration': 0.13, 'prosody hierarchy': 'null'}, {'character': '河', 'pinyin': 'he2', 'highest pitch': 10.07, 'lowest pitch': 5.66, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '中', 'pinyin': 'zhong1', 'highest pitch': 8.26, 'lowest pitch': 5.96, 'duration': 0.3, 'prosody hierarchy': '#4'}]