CAJ | 학술논문

重金属元素在水溶液中的形态分布,是研究其迁移转化及其生物可利用性的关键。这里选取位于攀枝花巴关河渣场周围的浅层地下水为研究对象,基于地球化学热力学平衡原理,采用 PHREEQC 模拟软件计算了钒在攀枝花巴关河渣场周围浅层地下水中的赋存形态。结果显示,研究区浅层地下水中钒主要以正五价的 H 2 VO-4形态存在,弱氧化还原环境条件对正三价和正五价钒的存在形态影响较大；在弱氧化环境且 pH=7~11的条件下,pH 对正五价钒的形态分布影响较大,正五价钒主要以 H 2 VO-4、HVO2-4的赋存形态存在,其次是 H 3 V2 O-7、V3 O3-9和HV2 O3-7。
중금속원소재수용액중적형태분포,시연구기천이전화급기생물가이용성적관건。저리선취위우반지화파관하사장주위적천층지하수위연구대상,기우지구화학열역학평형원리,채용 PHREEQC 모의연건계산료범재반지화파관하사장주위천층지하수중적부존형태。결과현시,연구구천층지하수중범주요이정오개적 H 2 VO-4형태존재,약양화환원배경조건대정삼개화정오개범적존재형태영향교대；재약양화배경차 pH=7~11적조건하,pH 대정오개범적형태분포영향교대,정오개범주요이 H 2 VO-4、HVO2-4적부존형태존재,기차시 H 3 V2 O-7、V3 O3-9화HV2 O3-7。
The distribution of species vanadium is a key factor influencing its transport and bioavailability in aqueous solu-tion.The shallow groundwater near the slag field of Baguan river in Panzhihua area was chosen as our research object in this paper.Based on the thermodynamic equilibrium principle,the distribution of species vanadium in the shallow groundwater near the slag field of Baguan river in Panzhihua area by PHREEQC was calculated.The results showed that its contained vanadium mainly existed in the form of pentavalent vanadium as H 2 VO-4 .Weak oxidation and reduction environment conditions have more influence on trivalent and pentavalent vanadium;in the weak oxidizing environment and pH=7~1 1,the greater effect of pH on vanadium was pentavalent form which mainly existed in the forms of H 2 VO-4 ,HVO2-4 ,followed by H 3 V2 O-7 ,V3 O3 -9 and HV2 O3 -7 .