CAJ | 학술논문

本文研究了一新型细胞外聚合物WJ-I对水中重金属Cr(Ⅵ)的吸附特性。结果表明，WJ-I对Cr(Ⅵ)吸附的最佳pH为0.5～2.0。Cr(Ⅵ)的吸附可分为三个阶段；快速吸附阶段(5min)；一级动力学吸附阶段(10～40min)；吸附平衡阶段(50min以后)。整个吸附过程符合langmuir吸附模型。
본문연구료일신형세포외취합물WJ-I대수중중금속Cr(Ⅵ)적흡부특성。결과표명，WJ-I대Cr(Ⅵ)흡부적최가pH위0.5～2.0。Cr(Ⅵ)적흡부가분위삼개계단；쾌속흡부계단(5min)；일급동역학흡부계단(10～40min)；흡부평형계단(50min이후)。정개흡부과정부합langmuir흡부모형。
Biosorption of Chromium(Ⅵ) was investigated by a Novel Bacterial exopolymers from Pseudomonas sp GX4-1. It was found that the optimum initial pH for Cr(Ⅵ) biosorption is 0.5-2.0; the biosorption process may be divided into the following phases:1)a fast biosorption phase with 75% Cr(Ⅵ) uptaken within 5 min: 2)first-order kinetics phase from 10 to 40min; 3)equilibrium phase; and biosorption process is fit for Languir model.