分析下面两个案例并回答有关问题。 (1)某城镇生产、生活的分布情况如下图所示,河流中W、X、Y、Z处某次水

2025-04-03 10:05:53
推荐回答(1个)
回答1:

(1)①造纸厂排放的碱性污水使X处河水pH升高,火力发电厂净化烟气的酸性废水治理未达标就排放,造成Y处等的河水pH降低(或火力发电厂燃煤产生的SO 2 会导致酸雨,飘落后使Y处等的河水 pH降低)
②化肥厂、农田及生活污水使Z处河水富营养化,水温较高、适于藻类等水生植物生长,河水中溶解氧被大量消耗,导致鱼类死亡
(2)①发电厂;焦化厂;炼铁厂;水泥厂;②Fe 2 O 3 +3CO 2 Fe+3CO 2 、CaCO 3 +SiO 2 CaSiO 3 +CO 2 ↑;
③用炼铁厂的炉渣(或CaSiO 3 )作为水泥厂的原料用发电厂的煤矸石和粉煤灰作为水泥厂的原料将石灰石煅烧成生石灰,用于吸收发电厂和焦化厂燃煤时产生的SO 2 ,减少对空气的污染建立污水处理系统

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