摘要
徐州市北郊工业区 60余家工业企业每天约有 1 0万 t污水排入荆马河 .成分复杂的工业废水中的重金属元素在随河水迁移的过程中 ,通过各种物理、化学作用过程 ,迅速转入底泥 ,造成了荆马河底泥的重金属污染 .针对这一问题 ,从上游至下游采集了 1 5个底泥样并进行了测试分析 ,结果表明 ,各种重金属质量分数的最大值分别为 :Cu,383× 1 0 -6;Pb,5 86.9× 1 0 -6;Zn,61 39×1 0 -6;总 Cr,2 8.3× 1 0 -3 ;Mn,794.5 × 1 0 -6;Co,2 4 .46× 1 0 -6;Ni,5 0 .33× 1 0 -6;V,99.6× 1 0 -6.运用地积累指数法评价了底泥的重金属污染程度 ,结果表明荆马河中、下游地段底泥已受到中等到强重金属污染 .
More than 60 factories and enterprises in northern industrial district of Xuzhou discharge approximately 1.0×10 5 m 3 of waste water into Jingma river every day. Heavy metals in waste water may pollute the bottom sediments by various chemical and physical actions. Aiming at this problem, some 15 heavy metal samples were collected and analyzed. The results shows that the bottom sediments of Jingma river have been contaminated. The pollution intensity of the bottom sediments has been assessed based on the Index of Geoaccumulation, showing that the river, from the middle reaches to the lower, is polluted from moderately to strongly.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2003年第2期138-140,共3页
Journal of China University of Mining & Technology
关键词
重金属
底泥
地积累指数
污染
荆马河
徐州市
heavy metal
bottom sediments
index of geoaccumulation
contamination
Jingma river
