木奇吸附法处理含酚废水

Filtration adsorption properties of the Mulch

园林废弃物经微生物发酵制得的有机覆盖物木奇具有多孔和吸附特性,考察其对水中苯酚的吸附能力,研究苯酚去除率与温度、p H、木奇添加量和振荡时间之间的关系。结果表明,100 m L 50 mg/L的苯酚模拟水样,在木奇用量为1 g左右,p H值为3,吸附温度20℃,振荡时间为60 min,对苯酚的去除率可达到65. 9%。Freundlich吸附等温式更适合描述木奇对苯酚的吸附过程,偏向于复杂的多重吸附。木奇对苯酚吸附的n值为3. 571,说明木奇的吸附能力比较强,园林铺装木奇对雨水中污染物的吸滞具有积极的作用。

Mulch,the organic coverings that produced of garden waste which is fermented by microorganisms.Mulch was treated as adsorbent material for understanding the absorbability to pollutants in rainwater,the adsorption capacity of phenol in water was investigated,relationships between phenol removal rate and temperature,pH,added salt of mulch,and shock time was also analyzed.The results showed that the amount of Mulch was about 1 g,the pH value was 3,the adsorption temperature was 20℃,the shaking time was 60 min,and the removal rate of phenol was 65.9%.Freundlich adsorption isotherm is more suitable for describing the adsorption process of phenol by Mulch,tend to complex multilayer adsorption.The value of n is 3.571 for the adsorption of phenol by Mulch,indicating that it is a kind of material with strong adsorption capacity.Garden pavement Mulch has a positive effect on the absorption of pollutants in rainwater.