CAJ | 학술논문

河流中河水与底泥中重金属含量之间的关系对于河流污染防治意义重大。对某金矿区3种典型河流的河水与底泥中的重金属含量进行分析，发现4条河流均有超过国家标准限值的情况，河水中7种重金属元素均出现超标，Cr、As元素超标不严重；底泥中Hg、Pb、Cr、Cu、Zn超标，其中Hg超标最严重，河水和底泥中Hg最大超标倍数分别达到3099倍和244倍。河流中重金属主要赋存形态为沉积态，底泥的吸附解吸作用是河流底泥和河水中重金属沿程变化的主控因素；金矿区区域上河水和底泥中重金属很好地服从Langmuir等温吸附模式。矿业活动、地层岩性均会影响底泥对重金属的平均最大吸附容量，流径黄土区的双桥河平均最大吸附容量最大。研究结果为矿山河流污染防治与预警提供了参考依据。
하류중하수여저니중중금속함량지간적관계대우하류오염방치의의중대。대모금광구3충전형하류적하수여저니중적중금속함량진행분석，발현4조하류균유초과국가표준한치적정황，하수중7충중금속원소균출현초표，Cr、As원소초표불엄중；저니중Hg、Pb、Cr、Cu、Zn초표，기중Hg초표최엄중，하수화저니중Hg최대초표배수분별체도3099배화244배。하류중중금속주요부존형태위침적태，저니적흡부해흡작용시하류저니화하수중중금속연정변화적주공인소；금광구구역상하수화저니중중금속흔호지복종Langmuir등온흡부모식。광업활동、지층암성균회영향저니대중금속적평균최대흡부용량，류경황토구적쌍교하평균최대흡부용량최대。연구결과위광산하류오염방치여예경제공료삼고의거。
The relationship of the content of heavy metals between water and sediments in a river plays a significant role in river pollu-tion prevention and control. Based on investigation and analysis of the heavy metal concentrations in three types of river, the authors studied the spatial distribution of the concentrations of heavy metals in the water and sediments and the adsorption isotherm models of their flowing through different lithologies as well as the degree of pollution, with the purpose of establishing heavy metal content coupling relationship between them in gold mine rivers. The results show that lots of heavy metal elements in all the four rivers have exceeded the national standard limit values. Seven kinds of heavy metals in river water have surpassed the set standard, in which the surpassing situation of chromium and arsenic is not serious. In sediments, mainly Hg, Pb, Cd, Cu and Zn have surpassed the set stan-dard, of which the most serious element is Hg, whose highest concentrations in water and sediments have respectively reached 3099 times and 244 times that of the set standards. The main mode of occurrence of heavy metals in the river is the deposition state, and ad-sorption-desorption of sediments is the main control factors of heavy metals pattern in river sediments and water in the stream. Viewed from adsorption-desorption equilibrium, the heavy metals in the river and the stream sediments are consistent well with the Langmuir isotherm. Different mining activities and lithologies will affect the heavy metal average maximum adsorption capacity of the sediments. The average adsorption capacity is maximum in the Shuangqiao River passing through the loess region. This conclusion provides the reference basis for the environment pollution prevention and early warning in the mining area.