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Converter sludge, a byproduct produced on large amounts in the steel making process, is an important resource that can be utilized effectively. This paper describes an experiment in which converter sludge was tested as an adsorbent for the removal of phosphorus from waste water. It was found that the phosphorus removal depended on the amount of converter sludge added, the pH value and the contact time. Under laboratory conditions when the added sludge was 2. 0mg/100ml, the contact time 4h and the pH value of equalized 4, over 88% of phosphorus was removed; the experimental data on converter sludge adsorption of phosphorus in the water fitted the Freundlich isotherm model. Converter sludge was found to be very effective in adsorbing the phosphorus. 相似文献
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借助于热重分析与光学显微镜观察,测定了含钛磁铁矿在700~1000℃温度范围氢还原速率,并与铁的氧化物的氢还原进行比较,结果表明钛磁铁矿氢还原时的有效扩散系数De较铁氧化物氢还原时的De低,说明含钛磁铁矿较铁的氧化物难还原。 相似文献
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微波辐射-均相Fenton氧化耦合混凝法处理印染废水 总被引:11,自引:0,他引:11
将微波污水处理技术、均相Fenton氧化和传统混凝工艺结合起来对成分复杂的印染废水进行了强化处理。结果表明,微波辐射-均相Fenton氧化耦合混凝法特别适合于处理复杂印染废水,在H2O2和FeSO4.7H2O的质量浓度分别为4.8 g/L和0.08 g/L,微波功率为500 W,辐射处理1 min的最佳条件下,色度和CODCr去除率分别高达98%和95.96%,出水主要水质指标均达到纺织染整工业水污染物排放Ⅰ级标准(GB4287-92)。初步的机理探讨表明,该法充分体现了微波辐射、Fenton氧化与混凝过程之间的协同效应,复杂染料分子降解反应历程的提出使得这种协同效应更为直观。 相似文献
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