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作 者:郭永平[1] 徐海量[1] 李卫红[1] 何宇[2]
机构地区:[1]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011 [2]新疆水利厅塔里木河流域管理局,新疆库尔勒841000
出 处:《干旱区研究》2003年第1期35-38,共4页Arid Zone Research
基 金:国家自然科学重点基金 ( 90 10 2 0 0 7);中国科学院知识创新项目 (KZCX1-0 8-0 3)资助
摘 要:塔里木河干流河水污染严重 ,年污水排放量在 10 0 0万t以上的排污口有 8个 ,全部集中在塔里木河干流的上游地区。塔里木河干流的河水污染几乎全部是由农田排水造成的。主要污染物有氯离子、硫酸根、钙、镁、高锰酸钾指数、化学耗氧量等。计算表明 ,每年排入塔里木河干流可溶性盐总量为 835 .30万t,以氯离子最高 ,达312 .7万t;其中库新沙总排干排污量最大 ,年排量达 2 6 5 .2万t,应作为重点治理区。The Tarim River is the longest continental river in China. Along with the rapid economic development in the watershed, the excessive exploitation and utilization of water resources and the increase of the volume of drained sewage in the upper reaches, the stream flow in the middle and lower reaches of Tarim River is reduced, and the water pollution becomes more serious year by year. Thus, the production of agriculture and animal husbandry has been seriously influenced, and some serous ecological problems occur in the lower reaches of Tarim River. The investigation shows that there are 8 sewage outlets with annual quantities of drained sewage over 1.0×107 t, and they are all distributed along the upper reaches of the mainstream of Tarim River. The stream water of the mainstream of Tarim River is almost polluted by the wastewater drained from the farmlands. The pollutants include mainly the ions of chlorine, acid radical, calcium, magnesium, potassium permanganate index, chemical oxygen consumption, etc. The calculation shows that the total annual quantity of soluble salts drained into the mainstream of Tarim River is as high as 8.353×106 t, which is dominated by chlorine ion (3.127×106 t); in which a quantity of 2.652×106 t is drained from the Kuxinsha Trunk Escape Canal, and the areas along this escape canal should regarded as the main harnessing regions.
分 类 号:X824[环境科学与工程—环境工程]
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