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Denitrification performance and microbial diversity in a packed-bed bioreactor using biodegradable polymer as carbon source and biofilm support.
The results showed that the average denitrification rate was 0.64 ± 0.06 kg N/(m(3)d), and NH3-N formation (below 1mg/L) was observed during denitification, and an initial excess release of DOC could be caused by rapid biodegradation of starch in the surfaces of SPCL granules, then it decreased to 10.08 mg/L.
Removal of high concentration p-nitrophenol in aqueous solution by zero valent iron with ultrasonic irradiation (US-ZVI).
The results show that a higher removal rate can be obtained by using a conical structure reactor, and the lower initial pH can aid the acceleration of PNP removal rate by using US-ZVI system.
Comparison of denitrification performance and microbial diversity using starch/polylactic acid blends and ethanol as electron donor for nitrate removal.
The results showed that the SPLA9 system had richer microbial diversity by analyzing Shannon's diversity index, but the ethanol system showed higher denitrification rate.
Removal of p-nitrophenol (PNP) in aqueous solution by the micron-scale iron–copper (Fe/Cu) bimetallic particles
Abstract In this study, in order to further investigate the degradation capacity and mechanism of Fe/Cu bimetallic system, the prepared Fe/Cu bimetallic particles with different theoretical copper
Comparative study on the reactivity of Fe/Cu bimetallic particles and zero valent iron (ZVI) under different conditions of N2, air or without aeration.
The results suggest that Fe/Cu bimetallic system with air aeration could completely break the benzene ring and NO2 structure of PNP and could generate the nontoxic and biodegradable intermediate products.
Degradation of 3,3'-iminobis-propanenitrile in aqueous solution by Fe(0)/GAC micro-electrolysis system.
Effects of influent pH value, Fe(0)/GAC ratio and granular activated carbon (GAC) adsorption on the removal efficiency of the pollutant were studied and possible reaction pathway for the degradation of 3,3'-iminobis-propanenitrile by the Fe-GAC micro-electrolysis system was suggested.
Pretreatment of wastewater from acrylonitrile–butadiene–styrene (ABS) resin manufacturing by microelectrolysis
Abstract Pretreatment of acrylonitrile–butadiene–styrene (ABS) resin wastewater by microelectrolysis system was investigated to improve the biodegradability of the toxic aromatic compounds and
Enhanced removal of nitrate using starch/PCL blends as solid carbon source in a constructed wetland.
Cornstarch/polycaprolactone (SPCL) blends were prepared and used as external carbon source for biological denitrification in a constructed wetland and the results showed that nitrate was removed mainly in the layer filled with SPCL, and the averagedenitrification rate was 0.069kg/m(3)d.
Innovative combination of Fe2+-BAF and ozonation for enhancing phosphorus and organic micropollutants removal treating petrochemical secondary effluent.
The dosage of Fe2+ into the BAF significantly enhanced the TP and OMPs removal ability and the System-B is selected as a proposed process for the advanced treatment of petrochemical secondary effluent.
Treatment of secondary effluent from a petrochemical wastewater treatment plant by ozonation‐biological aerated filter
BACKGROUD Secondary effluent collected from a petrochemical wastewater treatment plant was treated by ozone–biological aerated filter (O3-BAF) to investigate and evaluate the performance, organics