2018年1月1日 · Anaerobic digestion (AD) is a promising technology to produce renewable energy and reduce organic wastes. Recovering phosphorus (P) from AD residues as easily transportable and marketable products has gained increasing importance for the AD industry to meet regulatory requirements and increase revenue.

2015年9月30日 · Struvite precipitation is the most commercially available method to recover the phosphorus from manure as fertilizer. The anaerobic digestion of manure seems to be beneficial to the struvite precipitation while more detailed studies are needed.

2022年2月1日 · Phosphate in the anaerobic digestion effluent from the sewage treatment plant was recovered using synthesized magnetite. The phosphate adsorption mechanism of magnetite was caused by van der Waals electrostatic force and ligand exchange. Adsorption follows pseudo-second-order kinetics and Langmuir-Fundrich models.

phosphate removal and recovery struvite, MgNH4PO4·6(H2O) Large amount of phosphate and ammonium is formed in the anaerobic digester, which may lead to the formation of struvite mineral in the pipes carrying the digestion effluent.

2016年6月1日 · In this study, the effectiveness of DL [CaMg(OH) 4] for removing and recovering phosphate from the anaerobic digester effluent of a MWWTP and the mechanisms controlling the formation of phosphate precipitates in the treatment system were investigated. DL is an economical and commonly available material.

2024年10月23日 · Mg-rich biochars have been used for the removal and recovery of phosphate (PO43−) and ammonium (NH4+) from waste streams. In this study, a novel magnesium-modified biochar (Mg-FBC) was synthesized by immobilizing waste magnesite dust (WMD) into Aspergillus niger fungal biomass for the adsorption of PO43− and NH4+.

Dolomite lime (DL) (CaMg(OH)4) was used as an economical source of Mg(2+) for the removal and recovery of phosphate from an anaerobic digester effluent of a municipal wastewater treatment plant (MWWTP) wastewater. Batch precipitation results determined that phosphate was effectively reduced from 87 …

Precipitation modeling identified brushite as the best mineral to precipitate from organic acid digest. Brushite (CaHPO4·2H2O) is a valuable calcium phosphate mineral fertilizer that can be recovered from organic acid digest. At 41.3% P2O5 by mass, brushite has been shown to be as effective as other leading phosphate fertilizers on the market.

2023年10月12日 · Anaerobic digestion is one of the common reutilization technologies for the residual sludge. During the anaerobic digestion of PRS, 60–80% of the total phosphorus will be released again, so that the phosphorus concentration in the digestate can reach 100 mg/L–500 mg/L, even up to 1500 mg/L [6,7,8].

By treating wastes in the patented DVO 2-Stage Linear Vortex™ anaerobic digester, and then employing our Phosphorus Recovery (PR) system, one can both conserve valuable minerals and help protect our natural resources. The PR system is …