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Indian Institute of Technology (IIT) Roorkee 
Development of a novel water filtration unit containing hybrid adsorbents for simultaneous removal of arsenic and fluoride from contaminated water 
Prasenjit Mondal and Vineet Kumar Rathore 
Indian Institute of Technology (IIT) Roorkee 
Application type:
Applied - 2018-07-17 
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Indian Institute of Technology (IIT) Roorkee 
The present invention provides a system and method for simultaneous removal of arsenic (As) and fluoride (F) from contaminated water in a customized adsorption column (filter unit) using novel hybrid adsorbent. The system is easy to operate as it does not require any coagulants or oxidizing agents. It contains F reach ABTL and Al reaches AHNP, which are useful in removing As and F. The system uses a low cost adsorbent from laterite soil (ABTL) and aluminum oxide/hydroxide nanoparticle (AHNP) adsorbent with high As and F adsorption capacity, which were mixed in different ratio to get optimum recipe for addressing different situation with As and F in a wider range. The entire system works with the help of gravity, hence does not requires any power to operate. 

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