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首页> 外文期刊>Journal of Solid Waste Technology and Management >EFFECTS OF PHOSPHATE CHEMICALS TREATMENTS ON AUTO BATTERY WASTE CONTAMINATED SOIL IN NIGERIA
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EFFECTS OF PHOSPHATE CHEMICALS TREATMENTS ON AUTO BATTERY WASTE CONTAMINATED SOIL IN NIGERIA

机译：磷酸盐化学处理对尼日利亚汽车电池废料污染土壤的影响

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Auto battery waste contaminated site poses potential threats to the environment and biological life through lead toxicity, thus making remediation imperative. The possibility of using phosphate chemicals to reclaim a grossly lead-contaminated site was explored. The study site was an abandoned lead-acid battery waste dumpsite in Nigeria. Phosphate chemicals were applied at 5 and 10% phosphorus levels to the contaminated soil collected from the site in incubation experiments. The air-dried sub-samples of the incubated soils were analyzed for pH, P, bioavailable Pb and TCLP- extractable Pb. Results showed that 99.5% of the applied phosphorus was removed by the end of the first week of incubation. Incubation time showed less effect on Pb immobilization. A 10% phosphorus application resulted in reductions of water soluble Pb between 77.8% and 86.4% thus eliminating to a reasonable extent, the hazard to living things and the environment. TCLP extractable Pb was reduced from 50.2 mg/L in untreated soil to below the acceptable value of 5.0 mg/L. An application of 10% CHP produced overall effectiveness in the reduction of bioavailable Pb, TCLP-extractable soil Pb. This treatment also had little effect on soil acidification and resulted in the least residual P. Results therefore indicated that phosphorus can be used as potential chemical remediation for cleanup of battery waste contaminated soils.
机译：汽车电池废料受污染的地点通过铅中毒对环境和生物生命构成潜在威胁，因此必须进行补救。探索了使用磷酸盐化学物质回收严重铅污染的场所的可能性。研究地点是尼日利亚一个废弃的铅酸电池废料场。在孵化实验中，将磷化学物质以5％和10％的磷含量施用到从现场收集的受污染土壤中。对培养的土壤的风干子样品进行pH，P，可生物利用的Pb和可TCLP提取的Pb的分析。结果表明，在培养的第一周结束时，去除了99.5％的磷。孵育时间对Pb固定化的影响较小。施磷10％可使水溶性Pb减少77.8％至86.4％，从而在一定程度上消除了对生物和环境的危害。 TCLP可萃取铅从未处理土壤中的50.2 mg / L降至可接受的5.0 mg / L以下。 10％CHP的施用在减少生物可利用的Pb，TCLP可提取的土壤Pb方面产生了总体效果。该处理对土壤酸化的影响也很小，并且残留的P最少。因此，结果表明磷可以用作潜在的化学修复方法，以净化电池废物污染的土壤。

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