Congcong Zhang

Congcong Zhang
Autonomous University of Barcelona | UAB

PhD

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9
Publications
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134
Citations

Publications

Publications (9)
Article
Full-text available
Phosphorus (P), an essential nutrient for all organisms, urgently needs to be recovered due to the increasing demand and scarcity of this natural resource. Recovering P from wastewater is a feasible and promising way widely studied nowadays due to the need to remove P in wastewater treatment plants (WWTPs). When enhanced biological P removal (EBPR)...
Article
Recovering energy from wastewater in addition to its treatment is a hot trend in the new concept of water resource recovery facility (WRRF). High-rate systems operating at low solid retention time (SRT) have been proposed to meet this challenge. In this paper, the integration of Enhanced Biological Phosphorus Removal (EBPR) in an anaerobic/aerobic...
Article
Dissolved oxygen (DO) played a short board effect on nitrogen biotransformation and pollutant metabolism. This study for the first time explored the key role of different levels of DO (covering anaerobic, anoxic and aerobic) on hydrolyzed polyacrylamide (HPAM) bioconversion. HPAM was metabolized to intermediates with different chain length. Volatil...
Article
Full-text available
The types and concentrations of electron acceptor are the significant factors influencing the oxidation and biotransformation of organic matter in the process of pollutant biodegradation. Regulation of O2, SO4²⁻ and NO3⁻ as electron acceptors on petroleum hydrocarbon biotransformation to final products was studied using the multiple methods includi...
Article
This study deeply investigated the overall performance, nitrogen transformation, membrane fouling and cleaning, extracelluar polymeric substances (EPS) and microbial function in a biofilm/activated sludge membrane bioreactor (BF-AS-MBR) for treating actual hydrolyzed polyacrylamide (HPAM)-containing oilfield wastewater. The removal efficiencies of...
Article
Potential of hydrolyzed polyacrylamide (HPAM) biodegradation to final products was studied through regulating its own nitrogen transformation. Under the conditions of 2, 3 and 4 mg/L of DO, HPAM removal ratio reached 16.92%, 24.51% and 30.78% and the corresponding removal ratio reached 49.15%, 60.25% and 76.44% after anaerobic biodegradation. NO3--...
Article
The type of electron acceptor was a crucial factor in regulating the methanogenic process of anaerobic hydrolyzed polyacrylamide (HPAM) degradation. The combined methods of biodegradation experiments and thermodynamic calculations were applied to explore the effects of different electron acceptors on methanogenic HPAM degradation. Under the conditi...
Article
Full-text available
In the present study, hydrophilic Al2O3 nanoparticles were used as additives in both substrate and polyamide active (PA) layer to improve forward osmosis (FO) membrane properties. Via incorporation of 0.5 wt% Al2O3 into the substrate and 0.05 wt% Al2O3 into the PA layer (PS0.5-TFN0.05 membrane), the water flux reached 27.6 L m⁻² h⁻¹ with a relative...

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