城市垃圾码头对周围水域水质的影响

宁波市垃圾码头对周围水域水质影响作了连续监测,结果表明:对水质影响是以无机指标悬浮物、总硬度、pH为主,位置上下游大于上游.COD、BOD_5、油等有机指标影响较小,上游水质是先上升后下降,下游水质是以较小幅度上升,三氮的变化规律与有机指标基本相同.总氮总磷含量普遍较高.有毒有害物质对水质的影响不明显.这与宁波市生活垃圾中无机成分,特别是粉煤灰所占比例较大有关.

CONTINUOUS METER FOR WATER QUALITY AROUND CITY RUBBISHWH- ARF

Water quality around city rubbishwharf was investigated, the result shows that city rubbishwharf impacted on the water quality. The water quality of upper reaches rose first then drops; the water quality of lower reaches rose with a little width. The changed law of NO2-N, NO3-N and NH3-N, is equal to organic norm on the whole. The contents of TN and TP are higher in general. The impaction of toxin for water is realevant to the greater inorganic proportion of the city rubbish.