Application of Magnesium Modified Corn Biochar for Phosphorus Removal and Recovery from Swine Wastewater
Bibliographic Data
| ID | 15501945 |
|---|---|
| Authors | Ci Fang (China Agricultural University), Tao Zhang (0000-0002-4890-1671, China Agricultural University, corresponding author), Ping Li (0000-0002-0813-0980, China Agricultural University), Rong Feng Jiang (China Agricultural University), Rong-feng Jiang (China Agricultural University), Ying-cai Wang (China Agricultural University) |
| Year | 2014 |
| Volume | 11 |
| Issue | 9 |
| Pages | 9217-9237 |
| Publication date | 2014-09-05 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph110909217 |
| PMID | 25198685 |
| PMCID | PMC4199016 |
| OpenAlex | W1980526033 |
| Language | EN |
| Citations received | 1 |
| References cited | 31 |
The recycling of lost phosphorus (P) is important in sustainable development. In line with this objective, biochar adsorption is a promising method of P recovery. Therefore, our study investigates the efficiency and selectivity of magnesium modified corn biochar (Mg/biochar) in relation to P adsorption. It also examines the available P derived from postsorption Mg/biochar. Mg/biochar is rich in magnesium nanoparticles and organic functional groups, and it can adsorb 90% of the equilibrium amount of P within 30 min. The Mg/biochar P adsorption process is mainly controlled by chemical action. The maximum P adsorption amount of Mg/biochar is 239 mg/g. The Langmuir-Freundlich model fits the P adsorption isotherm best. Thermodynamics calculation shows ∆H > 0, ∆G 0, and it demonstrates the P adsorption process is an endothermic, spontaneous, and increasingly disordered. The optimal pH is 9. The amounts of P adsorbed by Mg/B300, Mg/B450, and Mg/B600 from swine wastewater are lower than that adsorbed from synthetic P wastewater by 6.6%, 4.8%, and 4.2%, respectively. Mg/biochar is more resistant to pH and to the influence of coexisting ions than biochar. Finally, postsorption Mg/biochar can release P persistently. The P release equilibrium concentrations are ordered as follows: Mg/B600 > Mg/B450 > Mg/B300. The postsorption Mg/B300, Mg/B450, and Mg/B600 can release 3.3%, 3.9%, and 4.4% of the total adsorbed P, respectively, per interval time
Agronomy · Biochar · Biology · Magnesium · Phosphorus · Pulp and paper industry · Pyrolysis · Waste management · Wastewater · Adsorption and biosorption for pollutant removal · Chemistry · Constructed Wetlands for Wastewater Treatment · Engineering · Environmental Science · Phosphorus and nutrient management · Environmental Chemistry · Environmental Engineering · Organic Chemistry
| Citations per year | 0.17 |
|---|---|
| Citation span | 2020 - 2020 (1) |
| Highly cited | No |