• Kruti Bhatt
• Dr.Reshma L Patel
• Anand Vegda

Forward Osmosis is the sustainable way to treat wastewater resources, specifically for industrial wastewater treatment. In this work, the concept of forward osmosis-reverse osmosis (FO-RO) was demonstrated and applied to textile wastewater. This work was done by a couple of experiments. The first experiment was performed by a lab-based forward osmosis set-up where textile wastewater was taken as a feed solution and NaCl as a draw solution. An experiment was done at a batch mode with the draw solution (NaCl) having different concentrations like 1, 1.5, 2, 2.5, and 3 M. After each batch with different concentration of NaCl the Total Dissolved Solids (TDS) of diluted draw solution and concentrated feed solution as well as Chemical Oxygen Demand (COD) of concentrated feed solution was measured. Results indicated that; feed solution gets more concentrated as the concentration of draw solution increases in the draw stream which means high rejection of solutes could be achieved by increasing the concentration of draw solution. In the second experiment, reverse osmosis was attached after the forward osmosis set-up. The same feed was been applied to this hybrid process but at continuous mode where RO was kept to recover water from diluted draw solution and RO reject from this process was returned to the draw stream to reuse as a draw solution. By this coupled process, 75% of water recovery and 97% of TDS removal could be achieved.

Forward Osmosis; Reverse Osmosis; Total dissolved solids; Chemical Oxygen Demand; draw solution; feed solution; water flux

"Application of Forward Osmosis Coupled with Reverse Osmosis in Industrial Wastewater Treatment", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 5, page no.f306-f313, May-2021, Available :http://www.jetir.org/papers/JETIR2105708.pdf

"Application of Forward Osmosis Coupled with Reverse Osmosis in Industrial Wastewater Treatment", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 5, page no. ppf306-f313, May-2021, Available at : http://www.jetir.org/papers/JETIR2105708.pdf