Pilot-scale comparison of non-coated and activated carbon-coated cosmoball for removal of organic matter and nutrients from municipal wastewater

2021 ◽  
Vol 230 ◽  
pp. 155-168
Author(s):  
Khaled Shahot ◽  
Azni Idris ◽  
Rozita Omar
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Municipal Wastewater ◽  
Pilot Scale ◽  
Carbon Coated

‘Green’ coagulant application with activated carbon: dosing sequence and removal of selected micropollutants and effluent organic matter from municipal wastewater

2020 ◽  
pp. 1-7
Author(s):  
Ivana Ivančev-Tumbas ◽  
Minja Bogunović ◽  
Vesna Vasić ◽  
Marina Šćiban ◽  
Aleksandra Tubić ◽  
...  
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Municipal Wastewater ◽  
Effluent Organic Matter

Impact of salinity on organic matter and nitrogen removal from a municipal wastewater RO concentrate using biologically activated carbon coupled with UV/H2O2

2016 ◽  
Vol 94 ◽  
pp. 103-110 ◽  
Author(s):  
Shovana Pradhan ◽  
Linhua Fan ◽  
Felicity A. Roddick ◽  
Esmaeil Shahsavari ◽  
Andrew S. Ball
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Nitrogen Removal ◽  
Municipal Wastewater ◽  
Ro Concentrate

scholarly journals Pilot-scale removal of organic micropollutants and natural organic matter from drinking water using ozonation followed by granular activated carbon

2021 ◽  
Author(s):  
Malin Ullberg ◽  
Elin Lavonen ◽  
Stephan J. Köhler ◽  
Oksana Golovko ◽  
Karin Wiberg
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Activated Carbon ◽  
Natural Organic Matter ◽  
Large Fraction ◽  
Drinking Water Treatment ◽  
Granular Activated Carbon ◽  
Pilot Scale ◽  
Organic Micropollutants ◽  
Scale Removal

Conventional drinking water treatment is inefficient in removing a large fraction of known organic micropollutants (OMPs). Ozonation in combination with granular activated carbon is a promising approach for addressing this issue.

The sorption capacity of long-time aerated activated sludge demonstrated with 2,6-dimethylphenol

1999 ◽  
Vol 39 (8) ◽  
pp. 131-138 ◽  
Author(s):  
H. Gulyas ◽  
U. Heldt ◽  
I. Sekoulov
Keyword(s):  
Activated Carbon ◽  
Activated Sludge ◽  
Specific Surface ◽  
Sorption Capacity ◽  
Municipal Wastewater ◽  
Solid Phase ◽  
Tap Water ◽  
Treatment Plant ◽  
Pilot Scale ◽  
Hazardous Substance

The aim of this study was to evaluate the influence of the duration of activated sludge aeration on sorption capacity of the sludge for the hazardous substance 2,6-dimethylphenol (DMP). DMP was not degraded by normal activated sludge of a pilot scale treatment plant for municipal wastewater as shown by BOD measurements. Sludge aeration was performed for up to 50 days. In sorption assays the mixed liquor suspensions aerated for different times were added to solutions of DMP (10 to 50 mg/l) in tap water in order to give biomass concentrations of 1 g MLSS/l in the sorption assay. Also a sorption isotherm with different concentrations of activated sludge aerated for 50 days with a constant initial DMP concentration was recorded. In the experiments solid phase DMP concentrations of up to 20.9 mg DMP/g MLSS were found depending on aeration time of the activated sludge. Sorption equilibria were reached within short periods (about 10 min). DMP sorption capacity of activated sludge reached a maximum on the 43rd day of aeration and decreased afterwards. But the sorption capacity of sludge aerated for 43 days was significantly lower (about 40% removal of DMP at 1 g MLSS/l from an aqueous solution containing about 50 mg DMP/l) than the adsorption capacity of activated carbon (100% removal of DMP at 1 g activated carbon/l). On the other hand, activated sludge which had been aerated for an optimum period represents a rather good and cheap sorbent for the refractory DMP, considering the low specific surface of activated sludge compared to the specific surface of activated carbon. However, an appropriate method for removal of the sludge loaded with DMP has to be chosen in order to protect the environment against spreading of the hazardous compound DMP. A multistage biosorption process for DMP removal from industrial wastewater is suggested.

scholarly journals Pilot-scale study to investigate the impact of rotating belt filter upstream of a MBR for nitrogen removal

2019 ◽  
Vol 79 (3) ◽  
pp. 458-465
Author(s):  
V. A. Razafimanantsoa ◽  
D. Adyasari ◽  
A. K. Sahu ◽  
B. Rusten ◽  
T. Bilstad ◽  
...  
Keyword(s):  
Organic Matter ◽  
Municipal Wastewater ◽  
Biogas Production ◽  
Oxygen Demand ◽  
Pilot Scale ◽  
Primary Treatment ◽  
Treated Wastewater ◽  
Transmembrane Pressure ◽  
Fine Mesh ◽  
The Impact

Abstract The goal of this study was to investigate what kind of impact the removal of particulate organic matter with 33μm rotating belt filter (RBF) (as a primary treatment) will have on the membrane bioreactor (MBR) performance. Two small MBR pilot plants were operated in parallel, where one train treated 2mm screened municipal wastewater (Train A) and the other train treated wastewater that had passed through a RBF with a 33μm filter cloth (Train B). The RBF was operated without a filter mat on the belt. About one third of the organic matter was removed by the fine mesh filter. The assessment of the overall performance showed that the two pilot plants achieved approximately the same removal efficiencies with regard to total suspended solids (TSS), chemical oxygen demand (COD), total phosphorus and total nitrogen. It was also observed that the system with 33μm RBF as a primary treatment produced more sludge, which could be used for biogas production, and required about 30% less aeration downstream. Transmembrane pressure was significantly lower for the train receiving 33μm primary treated wastewater compared to the control receiving 2mm screened wastewater.

scholarly journals The use of activated carbons for removing organic matter from groundwater

2017 ◽  
Vol 43 (3) ◽  
pp. 32-41 ◽  
Author(s):  
Jadwiga Kaleta ◽  
Małgorzata Kida ◽  
Piotr Koszelnik ◽  
Dorota Papciak ◽  
Alicja Puszkarewicz ◽  
...  
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Pilot Plant ◽  
Activated Carbons ◽  
Pilot Scale ◽  
Filter Model ◽  
Treated Water ◽  
Carbon Reduction ◽  
Organic Chlorine ◽  
Pilot Plant Scale

AbstractThe article presents research results of the introduction of powdery activated carbon to the existing technological system of the groundwater treatment stations in a laboratory, pilot plant and technical scale. The aim of the research was to reduce the content of organic compounds found in the treated water, which create toxic organic chlorine compounds (THM) after disinfection with chlorine. Nine types of powdery active carbons were tested in laboratory scale. The top two were selected for further study. Pilot plant scale research was carried out for the filter model using CWZ-30 and Norit Sa Super carbon. Reduction of the organic matter in relation to the existing content in the treated water reached about 30%. Research in technical scale using CWZ-30 carbon showed a lesser efficiency with respect to laboratory and pilot-plant scale studies. The organic matter decreased by 15%. Since filtration is the last process before the individual disinfection, an alternative solution is proposed, i.e. the second stage of filtration with a granular activated carbon bed, operating in combined sorption and biodegradation processes. The results of tests carried out in pilot scale were fully satisfactory with the effectiveness of 70–100%.

scholarly journals The membrane fouling mechanisms of the PAC/BPAC-UF combined process used to treat the secondary effluent from municipal wastewater treatment plant

2017 ◽  
Vol 77 (1) ◽  
pp. 211-219 ◽  
Author(s):  
Lihua Sun ◽  
Ning He ◽  
Xi Duan ◽  
Bingbing Yang ◽  
Cuimin Feng ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Organic Matter ◽  
Activated Carbon ◽  
Membrane Fouling ◽  
Municipal Wastewater ◽  
Membrane Surface ◽  
Treatment Plant ◽  
Powdered Activated Carbon ◽  
Combined Processes ◽  
Secondary Effluent

Abstract The combined processes of powdered activated carbon/biological powdered activated carbon- ultrafiltration (PAC/BPAC-UF) were used to treat secondary effluent. In this study, the effect of PAC and BPAC on membrane flux, membrane resistance and the removal of different molecular weight organic compounds were investigated. In addition, the structure characteristics of the microorganisms of the BPAC were analyzed. The results showed that the optimum dosage of PAC and BPAC was 10 mg/L and 40 mg/L respectively. The reversible membrane fouling resistance of BPAC-UF was higher than that of PAC-UF, and the two processes had the least irreversible resistance at the best dosage. The biodegradation of BPAC increased the concentration of small molecular weight organic matter up to 10,000 Da in the membrane effluent. So the dissolved organic carbon (DOC) removal effect of BPAC-UF process worsened. Microorganisms such as Proteobacteria, Bacteroidetes, Planctomycetes and other microorganisms on the surface of the BPAC enhanced the removal of organic matter in water. The results of scanning electron microscopy (SEM) scans showed that there was net mucus membrane on the UF membrane surface before the backwashing of the BPAC-UF process which increased the proportion of reversible pollution resistance. The physical flushing effect of BPAC-UF was better than that of direct UF and PAC-UF processes.

Comparing the effluent organic matter removal of direct NF and powdered activated carbon/NF as high quality pretreatment options for artificial groundwater recharge

2008 ◽  
Vol 57 (6) ◽  
pp. 821-827 ◽  
Author(s):  
C. Kazner ◽  
T. Wintgens ◽  
T. Melin ◽  
S. Baghoth ◽  
S. Sharma ◽  
...  
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Water Reuse ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Powdered Activated Carbon ◽  
Size Exclusion ◽  
Municipal Wastewater Treatment ◽  
Effluent Organic Matter ◽  
High Quality

Direct nanofiltration and nanofiltration combined with powdered activated carbon known as the PAC/NF process were tested regarding the removal of effluent organic matter for reclamation of tertiary effluent from a municipal wastewater treatment plant. They can be regarded as a promising treatment alternative for high quality water reuse applications, especially for direct injection. The total removal for DOC was above 90% with permeate concentrations below 0.5 mg/l. Size exclusion chromatography and fluorescence EEM proved to trace origin of the organic matter even in low concentration ranges. The type and dosage of adsorbent influences the process performance significantly and allows process optimization.

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