火山渣净化石油类污染地下水过程中与水化学因子的响应关系分析

采用生态安全型火山渣净化石油类污染地下水,考察该过程中与水化学因子(Fe2+,Fe3+,Mn2+,SO2-4,NH+4,Ca2+,Mg2+,NO-3,NO-2等)间的响应关系.结果表明:在火山渣吸附水体总石油烃(TPH)过程中,与Mn2+,SO2-4,Ca2+,NH+4的质量浓度无关,与Fe2+,Fe3+,Mg2+,NO-2的质量浓度呈负相关,与NO-3的质量浓度呈正相关;对Ca2+的去除率为42%~56%,对SO2-4,Mg2+,NH+4的去除率为60%~80%,对Fe2+,NO-3的去除率大于80%,对Fe3+,Mn2+,NO-2的去除率均大于95%.

Response Relationship Analysis of Hydro-Chemical Factor during Cleanse Process of Scoria for Petroleum Hydrocarbons in Groundwater

Abundant, economic and eco safe scoria was used to decontaminate groundwater contaminated by petroleum. This essay shows the response
relationship between its decontamination process and hydrochemistry factors. Themain investigation hydro chemical factors included Fe²⁺,Fe³⁺,Mn²⁺,SO^2-₄,NH⁺₄,Ca²⁺,Mg²⁺,NO^-₃,NO^-₂ and so on.The results show that scoria adsorb petroleum hydrocarbons （total petroleum hydrocarbon, TPH） in the water: it is not affected by Mn²⁺,SO^2-₄,Ca²⁺,NH⁺₄, but affected by Fe²⁺,Fe³⁺,Mg²⁺,NO^-₂,NO^-₃. The Fe²⁺,Fe³⁺,Mg^2+ and NO^-₂ have the inhibition effect on the adsorption of the scoria for TPH, while NO^-₃ has the promotion effect on the adsorption of the scoria for TPH. In the purification process of scoria for TPH, it can simultaneously remove all the ions. The removal rate of Ca²⁺ is between 42% to 56%, those of SO^2-₄,Mg²⁺,NH⁺₄ are between 60% to 80%, while those of Fe²⁺,NO^-₃ are greater than 80%, and Fe³⁺,Mn²⁺,NO^-₂ are almost completely removed and the removedrates are more than 95%.