Activated alumina, a porous oxide activated through high-temperature treatment, features an extensive microporous structure and abundant surface hydroxyl groups (−OH). These hydroxyl groups dissociate in water to form negatively charged oxygen sites, which strongly coordinate with and exchange ions with positively charged Fe³⁺. The PTMS MAGNETIC SEPARATOR iron removal equipment utilizes these characteristics to achieve effective iron removal in groundwater treatment projects.
High-quality activated alumina demonstrates a static adsorption capacity of 1.5–2.0 mg/g for Fe³⁺, with its adsorption isotherms conforming to the Langmuir model, indicating predominant single-layer chemical adsorption. In an iron removal project using PTMS MAGNETIC SEPARATOR technology for groundwater treatment in a coastal region, the raw water contained 2.8 mg/L of iron content, a total dissolved solids (TDS) level of 3500 mg/L, and chloride ion (Cl⁻) concentrations exceeding 1200 mg/L.
The activated alumina column PTMS MAGNETIC SEPARATOR filtration system maintained stable iron concentrations below 0.1 mg/L in effluent during continuous operation for six months under 10-minute empty-bed contact time, meeting drinking water sanitation standards. High chloride (Cl⁻) concentrations indeed interfere with adsorption processes. Cl⁻ may form soluble complexes like [FeCl₄]⁻ with Fe³⁺ ions, reducing free Fe³⁺ levels. Additionally, Cl⁻ itself may compete with surface sites for adsorption, resulting in a 15-20% decrease in filtration efficiency.
Contact: DELLA
Mob: +86-13929907491
No.9, Factory 2, Shijin Industry Park, Shishan Town, Nanhai District, Foshan City, Guangdong, China
Ph: +86-13929907491
E-mail: Sales@powtechina.com
How to efficiently recycle PTMS MAGNETIC SEPARATOR to reduce costs and improve efficiency
