Simultaneous Recovery of Nitrogen and Phosphorus from Sewage by Magnesium Ammonium Phosphate Method with Magnesium-Loaded Bentonite

Autor: Qiqi, Shen, Jinhai, Yuan, Xuanlan, Luo, Yu, Qin, Shiyue, Hu, Junhong, Liu, Haikun, Hu, Di, Xu
Rok vydání: 2022
Předmět:
Zdroj: Langmuir. 39:83-91
ISSN: 1520-5827
0743-7463
Popis: Excessive nitrogen (N) and phosphorus (P) result in serious eutrophication of water. In this study, magnesium modified acid bentonite was prepared by the impregnation method, and nitrogen and phosphorus were simultaneously removed by the magnesium ammonium phosphate method (MAP), which solved the problem of the poor adsorption capacity of bentonite. The morphology and structure of MgO-SBt were characterized by XRD, FT-IR, SEM, EDS, XPS, BET, etc. The results show that the acidified bentonite can increase the distance between bentonite layers, the layer spacing is expanded to 1.560 nm, and the specific surface area is expanded to 95.433 m
Databáze: OpenAIRE