Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China.
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China.
Mar Pollut Bull. 2019 Sep;146:435-441. doi: 10.1016/j.marpolbul.2019.06.059. Epub 2019 Jul 9.
The sorption behavior of phosphorus onto sediment was investigated with the addition of BC derived from incomplete biomass combustion (PC). The sorption kinetic curves of phosphorus onto PC and sediment could be described by a two-compartment first order equation, and the sorption isotherms fit the Freundlich model well. With increasing amounts of PC added, the sorption capacity increased while the HI did not change much. The distribution of phosphorus forms showed that CaP (ACa-P plus DAP) constituted the highest fraction in the sediment samples. Throughout the sorption process, CaP and OP changed very little, but the Ex-P and FeP increased obviously, and the presence of PC made this increase more significantly. The high specific area and the presence of iron and aluminum, as well as the modification of the sediments surface properties, make the addition of PC be favorable for the sorption of phosphorus onto sediments.
研究了添加生物质不完全燃烧（BC）衍生的黑碳（PC）后磷在沉积物上的吸附行为。磷在 PC 和沉积物上的吸附动力学曲线可以用双室一级方程来描述，吸附等温线很好地符合 Freundlich 模型。随着添加的 PC 量增加，吸附容量增加，而 HI 变化不大。磷形态的分布表明，在沉积物样品中 CaP（ACa-P 和 DAP）构成了最高的分数。在整个吸附过程中，CaP 和 OP 变化很小，但 Ex-P 和 FeP 明显增加，而 PC 的存在使这种增加更为显著。高比表面积以及铁和铝的存在，以及沉积物表面性质的改变，使得添加 PC 有利于磷在沉积物上的吸附。
