含铬污染物湿法解毒分析-化学工程专业论文.docxVIP

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含铬污染物湿法解毒分析-化学工程专业论文.docx

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中北大学学位论文中北大学学位论文 Research on Detoxification of Chromium Containing Pollutant by Hydro-based Process Abstract A chromate plant HYPERLINK /search?q=disposeamp;keyfrom=E2Ctranslation disposed the HYPERLINK /search?q=chromiumamp;keyfrom=E2Ctranslation chromium slag in its factory by a hydro-based detoxification process given priority to with stabilization and solidification. For do not HYPERLINK /search?q=disposeamp;keyfrom=E2Ctranslation disposed HYPERLINK /search?q=accordingamp;keyfrom=E2Ctranslation according HYPERLINK /w/to/ to the specification HYPERLINK /search?q=standardamp;keyfrom=E2Ctranslation standard, HYPERLINK /search?q=chromiumamp;keyfrom=E2Ctranslation chromium HYPERLINK /w/slags/ slag in some of the batch still have toxicity. In order to solve this problem, the paper based on the national standards, local terrain and the heap HYPERLINK /search?q=situationamp;keyfrom=E2Ctranslation situation of the HYPERLINK /search?q=chromiumamp;keyfrom=E2Ctranslation chromium HYPERLINK /w/slags/ slag check the HYPERLINK /search?q=chromiumamp;keyfrom=E2Ctranslation chromium HYPERLINK /w/slags/ slag heap by systematic sampling, HYPERLINK /w/analysis/ analysis and HYPERLINK /search?q=detectionamp;keyfrom=E2Ctranslation detection, to HYPERLINK /search?q=knowamp;keyfrom=E2Ctranslation know the HYPERLINK /search?q=distributionamp;keyfrom=E2Ctranslation distribution of the chromium containing pollutant. Provide two detoxification methods to deal with the chromium containing pollutant. By compared the two detoxification methods from several aspects, provide a basis and technical scheme for the detoxification of the chromium containing pollutant. The study includes two parts. The first one is detoxification the chromium containing pollutant by using sulfuric acid-ferrous sulfate under acidic condition. In this part, the process parameters are confirmed through the research of solid to liquid ratio, the time of acid soak, the dosage of sulfuric acid and ferrous