Potential of Nanofiltration for Phosphate Removal from Wastewater
نویسندگان
چکیده
Experimental investigations were conducted to evaluate the performance 01 n"nofillration fOr tertiary level phosphate removal from wastewater. A flat sheet type Oesal-5 thin 5lul nanofi)tration membrane in a plate and frame module, was IJsed. The inIIuc.nce of pressure. initial feed roncentntion, competing compounds, on nanoflllration performance were determined. TIlecxperimelltal study range of pressure and concentration were 400·1000 kPa and 2-10 mg I-I P rcsp~vely and ammonium sulphate was used as' the competing compoWld. Results showed that phosphorus removal effidency for nanofi)tntiOI\ is high (>95%) and it can produce an effluent. containing less lhan OJ mg I' P as a tertiary level treatment. Hig.her pressure "nd concentration showed posltive rl'SpOI\SC, while presence of competing rompoWld showed negative response on phosphol'U.5 rejection. A n"merical equation relating osmotic pressure and permeate flux has also been developed based on the e~-perimental results.
منابع مشابه
Influence of Operating Variables on Performance of Nanofiltration Membrane for Dye Removal from Synthetic Wastewater Using Response Surface Methodology
The textile industry is a water intensive industry that produces a large amount of highly colored wastewater that must be properly treated before disposal or reuse. In the present study, to verify the possibility of reusing textile wastewater with nanofilteration (NF), an attempt was made to treatment of synthetic reactive dye aqueous solution by commercial nanofiltration membrane. Experiments ...
متن کاملThe effects of operating factors on the removal of total ammonia nitrogen and florfenicol antibiotic from synthetic trout fish farm wastewater through nanofiltration
An aquaculture system can be a potentially significant source of antibacterial compounds and ammonia in an aquatic environment. In this study, the removal of total ammonia nitrogen and florfenicol antibiotic from synthetic aqueous wastewater was assessed by applying a commercial TFC (thin film composite) polyamide nanofilter. The effects of pH (6.5-8.5), pressure (4-10 bar), concentration of to...
متن کاملDecolorization of Ionic Dyes from Synthesized Textile Wastewater by Nanofiltration Using Response Surface Methodology
Decolorization of aqueous solutions containing ionic dyes (Reactive Blue 19 and Acid Black 172) by a TFC commercial polyamide nanofilter (NF) in a spiral wound configuration was studied. The effect of operating parameters including feed concentration (60-180 mg/l), pressure (0.5-1.1 MPa) and pH (6-10) on dye removal efficiency was evaluated. The response surface method (RSM) was utilized for th...
متن کاملWastewater Treatment by Azolla Filiculoides: A Study on Color, Odor, COD, Nitrate, and Phosphate Removal
The aquatic fern Azolla, a small-leaf floating plant that lives in symbiosis with a nitrogen fixing cyanobacteria (Anabaena), is an outstanding plant, thanks to its high biomass productivity along with its tremendous rate per unit area for nitrogen-fixation. The present study investigates the potential growth of Azolla in secondary effluents for removal of COD, phosphorus, and nitrogen. Resul...
متن کاملA Novel Open Raceway Pond Design for Microalgae Growth and Nutrients Removal from Treated Slaughterhouse Wastewater
The present work investigates nitrate and phosphate removal from synthetic treated slaughterhouse wastewater in a novel open raceway pond with sedimentation zone. For this purpose, microalgae Chlorella salina has been cultivated in synthetic wastewater and sedimentation zone has been added to enhance both algae separation in the system and nutrient removal. The effectiveness of Chlorella salina...
متن کامل