Pilot-scale Study on Hybrid PAC-UF Process for Settled Water Treatment
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Graphical Abstract
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Abstract
Pilot-scale study was performed to investigate the hybrid PAC-UF process for settled water treatment in terms of validity and economic efficiency of it as a substitute of the conventional sand filter.The performance of the hybrid PAC-UF process was also compared with that of the conventional sand filter in the full-scale drinking water treatment plant and UF.Resultsshowed that,the hybrid PAC-UF process could ensure the biological-safety with(0.041±0.010) NTU and(13±8)/mL for the effluent of turbidity and particle number(particle size >2 μm).The process reduced influent CODMn and UV254 by(21.0±9.9)% and(51.0±10.7)%,respectively.The process had a better performance for organic matter and turbidity removal compared with the conventional process,but it couldn't remove NH4+-N effectively.The process could running stably under the experimental condition.The hybrid PAC-UF process was suitable for the raw water with high concentration organic matter and low concentration NH4+-N.It could ensure the chemical-safety and biological-safety of effluent.
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