Experimental Study of the Surrounding Environment of an Electrolytic Aluminum Plant
Experimental Study of the Surrounding Environment of an Electrolytic Aluminum Plant
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发表时间：
2010
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通讯作者：
Zhang Shu-qiu
中科院分区：
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作者：
Zhang Shu-qiu
[目的]研究铝工业对周边环境、生态及健康的影响。方法对某电解铝厂周边环境土壤进行不同方向、不同距离、不同深度的采样，并对不同方向、不同距离的植物、河水和雨水进行采样，采用原子吸收分光光度计测定铝含量，采用方差分析和t检验对数据进行统计分析。[结果]前期雨水中铝含量高于后期雨水排污口上游河水中铝含量显著低于排污口下游河水中铝含量（P0.01（P0.01），在距离排污口50 m和500 m处的下游水体中，污染物浓度差异显著土壤铝含量在东、南、西、北4个方向上差异显著（P0.01）（P0.05），南北差异显著距种植区500 m和1000 m处的土壤养分含量差异不显著（P0.05（P0.05），土壤铝含量在表层间差异不显著，30 cm和50 cm深土壤除西向第1株略高于其他方向外，其余各方向的植株生长量差异不显著（P0.05（但差异不显著），500 m与1000 m之间差异不显著，1株与2株在不同方向和距离上差异不显著（P0. 05）。[结论]该厂排放的铝对大气和水体有一定影响，对土壤和植物的影响不明显。
[Objective] To study the effect of aluminum industry on the surrounding environment,ecology and health.[Methods]The soil in surrounding environment of an electrolytic aluminum plant was sampled in different directions,distances and depths,and the samples of plants,river water and rain water were collected in different directions and distances.The aluminum content was determined by atomic absorption spectrophotometer,and the data were statistically analyzed with variance analysis and t-test.[Results]The aluminum content of early rain water was higher than that of later rain water(P0.01).The aluminum content of the upper river of sewage outlet was significantly lower than that in the downstream water of sewage outlet(P0.01),and there was significant difference between downstream water at 50 m and 500 m from the sewage outlet(P0.01).There was significant difference in aluminum content of soil among the four directions of east,south,west and north(P0.05),and the difference between south and north was significant(P0.05).There was no significant difference between the soil at 500 m and 1000 m from the plant area(P0.05),and there was no significant difference in aluminum content among surface soil,30 cm and 50 cm depth soil(P0.05).Except 1st plant in the west was slightly higher than plants in other direction(but the difference was not significance),there was no significant difference between 500 m and 1000 m,and the difference between 1st plant and 2nd plant in different directions and distance was not significance(P0.05).[Conclusion]The aluminum discharged from this plant had a certain influence on air and water,but the influence on soil and plants was not significant.