畜禽养殖废水铬污染研究

随着现代畜禽养殖业的发展，畜禽养殖场排放的污染物越来越严重地污染环境，同时由于畜禽养殖的饲料中需要掺入畜禽所需微量元素铬，具有较大的污染隐患。本研究发现畜禽养殖废水是农村溪流铬污染的重要来源；在南山溪中，T—Cr浓度符合C=0．74Coe^-0.1205t（R^2=0．7366）规律衰减变化，Cr（Ⅵ）浓度符合C=0．806Coe^-0.1345t（R^2=0．5927）规律衰减变化；水体中Cr（Ⅵ）与T—Cr含量的关系较为显著（R^2为0．7188），水体T—Cr含量与底质T—Cr含量的相关性较差（R^2为0．1839）。

Study on Chromium Pollution of Livestock and Poultry Breeding Wastewater

As the rapid development of modern livestock and poultry breeding industry, the pollutants from the breeding farms pollute the environment more and more seriously, especially the chromium element as one additive of the feedingstuff has the potential pollution risk. The research reveals that the wastewater from the livestock and poultry breeding farm is the important source of chromium pollution in the streams of the villages. The concentration of T - Cr accords with formula C = 0. 74C0e - 0. 1205t with R^2 of 0. 7366 to attenuate. The concentration of Cr （ WI ） accords with formula C = 0. 806 C0e -0. 1345t with R^2 of 0. 5927 to attenuate, the relation of the content between Cr （ WI ） and T - Cr in water is more prominence, and the relation between the content of T - Cr in water and the content of T - Cr in matter is rather poor with R^2 of 0. 1839.