In order to study the remediation effect of Benzo[a]pyrene polluted soil by ex-situ chemical ox-idation technology,lab scale Jar test of simulated chemical oxidation was carried out.The performance of Fe2+,quicklime,hydrogen peroxide and some other reagents on activation of sodium persulfate,was comparatively test-ed.The test results showed that,quicklime activation had the best remediation effect,followed by Fe2+ activation.A pilot scale test which choosing ways of quicklime activation and ferrous sulfate activation was carried out,the results indicated that,quicklime had a better remediation effect,and the dosage of sodium persulfate was deter-mined to be 1.0%of soil amount.Finally,about 280 tons of polluted soil was remediated in the project,the re-mediation goal was achieved.According to the cost analysis,quicklime activation is the most economical way.
关键词
苯并[a]芘/过硫酸钠/异位化学氧化/土壤修复
Key words
Benzo[a]pyrene/sodium persulfate/ex-situ chemical oxidation/soil remediation
维普
万方数据