Granular Ferric Hydroxide Filter Media for Arsenic Removal in Drinking Water
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- Add:蘇州市吳中區(qū)光福鎮(zhèn)蘇州工藝文化城二區(qū)11幢107號135室, Zip: 18600038951
- Contact: 李先生
- Tel:18239962987
- Email:280459524@qq.com
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Granular Iron Hydroxide Filter Media for Arsenic Removal in Drinking Water
BKsorb-APM iron hydroxide filter media is currently one of the mature, economical, and environmentally friendly technologies for arsenic removal in drinking water. It requires no chemical dosing, no regeneration, is simple to operate, and has a long service life. It has been widely applied in drinking water safety projects in high-arsenic regions.
Currently, iron hydroxide arsenic removal filter media (such as BKsorb-APM) has become a mainstream technical solution for arsenic removal in drinking water, particularly suitable for groundwater, well water, rural centralized water supply, and centralized water purification in small to medium-sized water plants. Below is a summary of the latest technology:
Technical Core: BKsorb-APM Iron Hydroxide Filter Media
| Parameter | Value |
|---|---|
| Main Composition | β-FeOOH / Fe(OH)? |
| Iron Content | ≥60% |
| Particle Size | 0.2–2.0 mm |
| Specific Surface Area | ~300 m2/g |
| Adsorption Capacity | 4–14 g/kg (based on As) |
| Applicable pH Range | 5–9 (peak adsorption at pH 6.5–7.5) |
| Effluent Arsenic Concentration | Stable < 0.01 mg/L (10 ppb) |
| Service Life | 1.5–5 years, no regeneration required |
| Certification Standards | NSF/ANSI 61, DIN EN 15029 |
Process Flow (Applicable to Groundwater/Drinking Water)
Pretreatment (optional): ≥10 μm coarse filtration to remove suspended solids;
Media Filling: Recommended filter bed height ≥100 cm;
Filtration & Adsorption:
Empty Bed Contact Time (EBCT): 3–5 minutes;
Filtration Flow Rate: 10–20 m/h;
Backwashing: When pressure drop ≥0.5 bar, backwash at 25–26 m/h for 5–10 minutes;
Effluent Testing: Ensure arsenic concentration < 0.01 mg/L;
Media Replacement: Direct replacement after adsorption saturation; no regeneration required.
Technical Advantages
| Comparison Dimension | Iron Hydroxide Filter Media | Traditional Arsenic Removal Resin |
|---|---|---|
| Adsorption Capacity | 4–14 g/kg | 0.5–2 g/kg |
| Effluent Precision | Single-step < 0.01 mg/L | Requires multi-stage or frequent regeneration |
| Operational Complexity | No regeneration/chemicals needed | Acid-base regeneration required, cycle 1–7 days |
| Secondary Pollution | None | Produces high-salinity arsenic-containing waste liquid |
| Operating Cost | 0.15–0.45 RMB/ton | 1.0–2.5 RMB/ton |
Applicable Scenarios
Drinking Water Treatment: Rural centralized water supply, household water purifiers, community water stations;
Groundwater Arsenic Removal: Well water purification in high-arsenic areas;
Emergency Water Supply: Temporary water supply systems post-disaster or in remote areas;
Industrial Wastewater Polishing: Arsenic removal before compliant discharge.
| Industry Category | Chemicals/Inorganic Bases/Other Inorganic Bases |
|---|---|
| Product Category | |
| Brand: | 蘇州舜雨環(huán)保材料有限公司 |
| Spec: | BKsorb-APM |
| Stock: | 98500 |
| Manufacturer: | |
| Origin: | China / Jiangsu / Suzhoushi |
