期刊论文

Adsorption of Phosphate from Wastewater Using Oyster Shell Modified Peanut Shell Biochar

中文

山东化工

1008-021X

2022

51

15

38-41+44

10.3969/j.issn.1008-021X.2022.15.012

本校为第一机构

由于磷肥的过量施用、大量含磷生活、工业废水的排放，致使水体富营养化现象日益严重，因而急需经济高效的方法去除水体中的磷。本研究以高钙牡蛎壳为改性材料，制备钙改性花生壳生物炭，并研究其对水体中磷酸盐的吸附效果。结果表明，当磷初始100 mg/L，投加量1.0 g/L,p H值=4时，在28℃转速为150 r/min的条件下，牡蛎壳改性后的花生壳生物炭经过1 h吸附后，达到最大磷吸附量98.48 mg/g，约为未改性花生壳生物炭的8.3倍。通过SEM、XRD和FTIR对生物炭进行表征分析表明，牡蛎壳改性花生壳生物炭对磷的良好吸附能力主要原因是改性后生物炭表面负载的Ca（OH）2和磷酸根发生化学反应生成了羟基磷灰石...

Due to the excessive application of phosphorus fertilize and the discharge of a large amount of phosphorus-containing domestic and industrial wastewater,the eutrophication of water body is becoming increasingly serious.Therefore,an economical and efficient method to remove phosphorus from water is urgently needed.In this study,calcium modified biochar(Ca BC)was prepared by using peanut shell as raw material and oyster shell as calcium source,and its phosphate adsorption capacity from wastewater was studied.The results showed that when the initi...