Earth, Atmosphere & Environment Sciences
Title: | Nano Alumina Adsorbent Based Water Filter for Arsenic and Fluoride Removal |
Area: | Earth, Atmosphere & Environment Sciences |
Focus Area: | Water-based Technologies |
Status: | Technology transferred to-1. MWS Enterprises Pvt. Ltd.Indore, MP India2. Marcus Projects Pvt. Ltd. Lucknow, UP, India3. IBS NanoPurifier Ltd. Bhopal, MP, India |
Patent: | US Application No.: 16/421,220 NANOADSORBENT BASED USER-FRIENDLY HOUSEHOLD FILTER FOR THE PURIFICATION OF FLUORIDE AND ARSENIC CONTAMINATED DRINKING WATER |
Company Transferred: | Yes |
Social Benefits: | Millions of people across the India are affected by the exposure to the water containing fluoride above permissible limits (> 1.2 mg/l) and arsenic (0.010 mg/l). This can cause illness particularly in kids because of their lower immunity to the surroundings. This causes expenses on treatment, loss of daily income resulting in low socio-economic status of the community. Our objective was to develop domestic water filter as quite often community level water filters are not maintained well and either don’t work properly or get abandoned. However, if provided individual filter than each family will have a pride ownership of the device and he will take care of it ultimately will be ensured that a family will get fluoride and arsenic free drinking water. |
Developing Agency: | CSIR- Advanced Materials and Processes Research Institute (AMPRI), Bhopal, Madhya Pradesh |
Technology Readiness Label: | 9 |
Funding Agency: | Council of Scientific and Industrial Research (CSIR) |
Brief Description
Description : | Prolonged consumption of water containing excessive fluoride (above ~1.5 mg/L) can lead to fluorosis affecting teeth, bones, and joints, eventually causing severe skeletal damage, while arsenic contamination (above ~10 µg/L) can result in arsenicosis, skin disorders, and even cancer. In India, tens of millions of people across multiple states are affected by these contaminants due to groundwater pollution. Although several technologies exist, many are not suitable for household-level use. This technology provides a simple, low-cost, and user-friendly solution that operates on gravity without requiring electricity. Its efficiency depends on the height of the overhead water source, and it performs optimally for water with pH between 6.5–8.5 and TDS below 500 mg/L. The system effectively removes arsenic and fluoride along with other toxic contaminants such as chromium and lead, while retaining essential minerals, ensuring treated water complies with BIS drinking water standards. The nano-alumina adsorbent used is inexpensive, can be synthesized at scale without generating waste, and does not leach harmful aluminum when properly prepared.
Key Features: • Simple, gravity-driven operation requiring no electricity • No water wastage during treatment process • Maintains essential mineral content in treated water • Demonstrates significantly higher removal efficiency (3–4 times) compared to conventional gamma alumina • Uses low-cost nano-adsorbent that can be produced in bulk without waste generation |
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