Groundwater Arsenic Removal Process
Contact Info
- Add:苏州市吴中区光福镇苏州工艺文化城二区11幢107号135室, Zip: 18600038951
- Contact: 李先生
- Tel:18239962987
- Email:280459524@qq.com
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Groundwater Arsenic Removal Process——Iron Hydroxide Arsenic Removal Media Adsorption Process
Using BKsorb iron hydroxide arsenic removal media as the core material, this groundwater arsenic removal process is currently one of the simplest, most stable, and most economical solutions for groundwater arsenic contamination. It is suitable for various scenarios such as rural single wells, centralized water supply stations, and municipal water plants. Below is the complete process flow and technical details:
Process Flow
| Step | Operation Description | Technical Parameters |
|---|---|---|
| 1. Raw Water Condition Confirmation | Test arsenic concentration (As(III)/As(V)), pH, turbidity | pH 6.0–7.5 for peak adsorption performance; arsenic concentration ≤0.5 mg/L |
| 2. Media Filling | Fill pressure filter tank with BKsorb media | Filling height: 80–160 cm; particle size: 0.2–2.0 mm |
| 3. Filtration Adsorption | Groundwater passes through media layer from top to bottom | Empty Bed Contact Time (EBCT): ≥3 minutes |
| 4. Backwashing | Backwash when pressure drop reaches 0.5 bar or after 1–2 weeks of operation | Flow rate: 25–26 m/h; duration: 5–10 minutes |
| 5. Effluent Testing | Quarterly sampling to test effluent arsenic concentration | Target value: <0.01 mg/L (10 ppb) |
| 6. Media Replacement | Replace entire media upon adsorption saturation | Service life: 2–5 years, depending on raw water arsenic concentration |
Adsorption Principle (Simplified)
Main Reaction:
Fe(OH)₃ + H₃AsO₄ → FeAsO₄ + 3H₂OMechanism: Hydroxyl groups on the iron hydroxide surface undergo ligand exchange with arsenate (As(V)) or arsenite (As(III)), forming stable surface complexes.
No Pre-oxidation Required: BKsorb can directly adsorb both As(III) and As(V) without additional chemical oxidation.
Technical Advantages
| Feature | Description |
|---|---|
| High Arsenic Removal Efficiency | Reduces arsenic concentration to <0.01 mg/L, even <3 ppb, in a single filtration |
| No Regeneration Required | Service life of 2–5 years; direct replacement upon saturation, no regeneration wastewater |
| Broad-Spectrum Applicability | Simultaneously removes As(III) and As(V), and also removes lead, vanadium, uranium, phosphates, etc. |
| Low Operating Cost | Treatment cost per ton of water: only 0.15–0.35 RMB, no electricity or chemicals required |
| Safe and Eco-friendly | Certified by NSF/ANSI 61 and DIN EN 15029, no secondary pollution |
Applicable Scenarios
Rural single-village single-well water supply systems
Urban centralized water supply stations (50–5000 m³/d)
Municipal water plant deep arsenic removal upgrades
Emergency water supply and post-disaster water recovery
Remote areas without electricity or technical personnel
Engineering Recommendations (If Design Is Needed)
| Parameter | Recommended Value |
|---|---|
| Filter Tank Diameter | Designed based on water flow, generally 0.3–4.0 m |
| Media Usage | Approximately 60–100 L of media per 1 m³/h treatment capacity |
| Supporting Equipment | Recommended: pressure tank, backwash pump, inlet/outlet valves |
| Installation Method | Above or below ground, with drainage channel reserved for backwashing |
For specific project design (e.g., 100 m³/d system selection), please provide:
Water quality report
Treatment flow rate (m³/d), operating duration
Site conditions
Target indicators
I can provide free estimates for media usage, tank size, and replacement cycle for you.
| Industry Category | Environment |
|---|---|
| Product Category | |
| Brand: | 苏州舜雨环保材料有限公司 |
| Spec: | BKsorb02 |
| Stock: | 75000 |
| Manufacturer: | |
| Origin: | China / Jiangsu / Suzhoushi |
