Enhancement of aerobic granulation with real domestic wastewater by powdered activated carbon addition

2017 ◽  
pp. 1167-1170
Keyword(s):  
Activated Carbon ◽  
Domestic Wastewater ◽  
Powdered Activated Carbon ◽  
Carbon Addition ◽  
Aerobic Granulation

Coagulation-adsorption-ultrafiltration for wastewater treatment and reuse

2003 ◽  
Vol 3 (5-6) ◽  
pp. 361-365 ◽  
Author(s):  
D. Abdessemed ◽  
G. Nezzal ◽  
R. Ben Aim
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
Domestic Wastewater ◽  
Powdered Activated Carbon ◽  
Cod Removal ◽  
Wastewater Reclamation ◽  
Wastewater Reclamation And Reuse ◽  
Pre Treatment ◽  
Uf Membranes ◽  
Tubular Membranes

We considered the treatment of domestic wastewater by coagulation–adsorption–ultrafiltration, and a test of adsorption like pre-treatment to the membrane as an alternative for wastewater reclamation and reuse. The performances of two inorganic tubular membranes (M2 and M5 CARBOSEP with 15,000 Da and 10,000 Da MWCO) were studied. Powdered activated carbon was used as adsorbent agent and FeCl3 as a coagulant. Coupling adsorption and ultrafiltration resulted in satisfactory results: the efficiency of COD removal was increased by using PAC compared with results obtained when using only UF membranes.

Removal of micropollutants from treated domestic wastewater by addition of powdered activated carbon to rapid filtration

2014 ◽  
Vol 9 (3) ◽  
pp. 344-352 ◽  
Author(s):  
J. Altmann ◽  
H. Bruebach ◽  
A. Sperlich ◽  
M. Jekel
Keyword(s):  
Activated Carbon ◽  
Domestic Wastewater ◽  
Pilot Scale ◽  
Powdered Activated Carbon ◽  
Advanced Treatment ◽  
Stable Operation ◽  
Secondary Effluent ◽  
Batch Tests ◽  
Drinking Water Resources ◽  
Reduce Emissions

Advanced treatment of wastewater is currently being discussed throughout Europe in an effort to reduce emissions to surface waters and protect drinking water resources. In this study the combination of adsorption onto powdered activated carbon (PAC) and coagulation/filtration was investigated as a single advanced treatment step for simultaneous removal of organic micropollutants (OMPs) and phosphorus from domestic secondary effluent. Two pilot-scale dual-media filters were operated in parallel for a period of 4 months to investigate the influence of PAC addition on filtration parameters and determine removal of 14 selected OMPs. OMP abatement in the PAC filter was compared to batch tests and correlated with relative removal of UV254 absorption (UVA254). Stable operation with an average PAC dose of 8 mg/L and a removal >90% of total suspended solids was possible for filtration cycles of 24 h. The results show that PAC dosing does not negatively affect either filtration resistance or removal of phosphorus by precipitation. Concentrations of benzotriazole and carbamazepine were reduced by >70%, while sulfamethoxazole and diclofenac were removed to the extent of 40–60% (median values). Relative OMP removal showed only minor fluctuations despite occasionally strong changes of influent concentrations. Moreover, the results indicate that contact times were not sufficient for complete PAC exhaustion before separation and that further adsorption onto embedded PAC in the filter significantly contributes to overall OMP removal.

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