The Pollution Characteristic Reaserch On Soil Heavy Metal Cd,Cu,Cr,Pb,Zn In The Steel Industry Of PanZhiHua

This article chooses the steel industrial district located the PanZhiHua north sideas the !research object, carries on the research of soil heavy metal (cadmium, copper,chromium, lead, zinc) pollution characteristic.The research attempts through to thesoil heavy metal change rule, the shape distribution rule, the shape and the totalquantity relation, the shape content and the soil physics and chemistry nature (pH, Eh),the particle size relations and so on. Conducts the dissect, promulgates the soil heavymetal (cadmium,copper, chromium, lead, zinc) the pollution rule, discusses the heavymetal to be possible the withdrawing condition content along with pH, Eh, the particlesize size change intrinsic mechanism. This article has determined 5 samples 3 kind ofparticle sizes soil physics and chemistry nature (the pH value, the Eh value), heavymetal element (cadmium, copper, chromium, lead, zinc) the total quantity and variousshapes (act according to Tisser shape classification) content.Obtains research resultsand some new opinions as follows:1st, the research area soil completely is the alkalinity, the oxidation reduction nature isareducebility.2nd, in research area five kind of metals content zinc is biggest, the cadmium issmallest, in the steel institution place, the rule of heavy metal content from large tosmall is: Zinc＞Copper＞Chromium＞Lead＞Cadmium. Other each area, the rule ofheavy metal content from large to small is: Zinc＞Lead＞Copper＞Chromium＞Cadmium.3rd, the research area metal cadmium mainly by extremely unstable the exchangecondition and the carbonate union condition existence, the metal copper, thechromium, the lead, the zinc mainly by the stable residual condition existence, thelead the exchange condition content may be only inferior to the residual conditioncontent. 4th, the research area heavy metal pollution combination may divide into two groupsof (1) cadmium, the lead, the zinc; (2) Copper, chromium. In the majority of samples,the exchange condition metal content and the total quantity all are negative relation.5th, the research area metal majority the withdrawing condition content and the pHvalue are negative relation, and the Eh value are positive relation. But the cadmium,the copper, the chromium, the lead, the zinc, the exchange condition content and thepH value are positive correlation, and the Eh value are negative relation.6th, the research area five kind of metals content maximum value appears slightly inthe smaller particle size (100, 160 item) sample,the partial metal's withdrawingcondition content maximum value also appear in the smaller particle size (100, 160item) sample.