转炉污泥是钢铁工业废弃物主要成分之一,也是一种能有效利用的资源.本文研究了转炉污泥作为一种吸附剂对废水中磷吸附的一般规律.实验结果表明,转炉污泥的投加量、溶液pH值、接触时间是影响污泥对磷吸附的主要因素;当投加量为2.0mg/100ml、接触时间4h、溶液pH值为4时,废水中88%的磷被除去;转炉污泥对废水中磷的吸附符合Freundlich模型.转炉污泥是一种比较有效的废水吸附剂.
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.
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