岩矿测试
巖礦測試
암광측시
ROCK AND MINERAL ANALYSIS
2010年
2期
123-126
,共4页
pH值%多环芳烃%土柱%纵向迁移
pH值%多環芳烴%土柱%縱嚮遷移
pH치%다배방경%토주%종향천이
pH value%polycyclic aromatic hydrocarbons (PAHs)%soil column%vertical migration
影响土壤多环芳烃(PAHs)纵向迁移行为的环境因素很多.文章以氧化钙和冰乙酸改变采自徐州土壤的pH值水平,人工装填土柱进行纵向淋滤试验,研究pH值对土壤PAHs纵向迁移行为的影响.结果表明,土壤pH值的变化加强了PAHs在土柱中的纵向淋滤能力,表层土壤中的PAHs可迅速向底层转移;不同种类的PAHs淋滤特性表现不同,pH值增加更能增强低环PAHs的迁移淋滤能力,pH值降低则更能促进高环PAHs从土壤表层向深部迅速迁移.
影響土壤多環芳烴(PAHs)縱嚮遷移行為的環境因素很多.文章以氧化鈣和冰乙痠改變採自徐州土壤的pH值水平,人工裝填土柱進行縱嚮淋濾試驗,研究pH值對土壤PAHs縱嚮遷移行為的影響.結果錶明,土壤pH值的變化加彊瞭PAHs在土柱中的縱嚮淋濾能力,錶層土壤中的PAHs可迅速嚮底層轉移;不同種類的PAHs淋濾特性錶現不同,pH值增加更能增彊低環PAHs的遷移淋濾能力,pH值降低則更能促進高環PAHs從土壤錶層嚮深部迅速遷移.
영향토양다배방경(PAHs)종향천이행위적배경인소흔다.문장이양화개화빙을산개변채자서주토양적pH치수평,인공장전토주진행종향림려시험,연구pH치대토양PAHs종향천이행위적영향.결과표명,토양pH치적변화가강료PAHs재토주중적종향림려능력,표층토양중적PAHs가신속향저층전이;불동충류적PAHs림려특성표현불동,pH치증가경능증강저배PAHs적천이림려능력,pH치강저칙경능촉진고배PAHs종토양표층향심부신속천이.
The vertical migration behaviors of polycyclic aromatic hydrocarbons (PAHs) in soils are influenced by a number of factors. To study the effect of pH on the vertical migration of PAHs in soils, soil samples collected from Xuzhou were loaded artificially in the columns and adjusted to different pH levels with CaO and HAc. And deionized water was used as leaching solution. The results showed that PAHs in the soil columns with different pH values had different vertical migration behaviors. Low ring PAHs had strong vertical migration capability in soil columns with higher pH level. In contrast, high ring PAHs had strong vertical migration capability in soil columns with lower pH level.
