| 摘要 |
<p>The present invention relates to an extracting agent for treating coking wastewater. The extracting agent comprises the following components in percentage by mass: 4-25% of a neutral phosphorus-containing extracting agent, 0.5-10% of an acid phosphorus-containing extracting agent, 0.5-5% of a co-solvent and 60-95% of a diluent. The extracting agent of the present invention can be used widely, and can be used for extracting various pollutants such as phenol, heterocyclic compounds, ester and aromatic hydrocarbon in coking wastewater at the same time and realizing synchronous implementation of dephenolization treatment and denitrification treatment of coking wastewater; moreover, the extracting agent is low in solubility, and can be recycled efficiently. The extracting agent of the present invention solves the problems of complex treatment step of coking wastewater, use of a large number of apparatuses, low extracting efficiency and severe loss of the extracting agent, so that the high efficiency of the extracting agent is realized.</p> |
