Performance and characterization of a non-sintered zeolite porous filter for the simultaneous removal of nitrogen and phosphorus in a biological aerated filter (BAF)

RSC Advances ◽  
2016 ◽  
Vol 6 (55) ◽  
pp. 50217-50227 ◽  
Author(s):  
Teng Bao ◽  
Tianhu Chen ◽  
Marie-Luise Wille ◽  
Dong Chen ◽  
Wentao Wu ◽  
...  
Keyword(s):  
Simultaneous Removal ◽  
Biological Aerated Filter ◽  
Nitrogen And Phosphorus ◽  
Porous Filter ◽  
Aerated Filter

A novel non-sintered zeolite porous filter (ZPF) and commercially available ceramsite (CAC) are used to investigate the simultaneous removal of nitrogen and phosphorus from city wastewater treated by biological aerated filter (BAF) reactors.

Start-Up Characteristics of Biological Aerated Filter with Composite Steel Slag Media for Nitrogen and Phosphorus Removal

2014 ◽  
Vol 675-677 ◽  
pp. 939-942 ◽  
Author(s):  
Zhi Liu ◽  
Li Ping Qiu ◽  
Li Xin Zhang
Keyword(s):  
Phosphorus Removal ◽  
Steel Slag ◽  
Future Application ◽  
Biological Aerated Filter ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
Start Up ◽  
Aerated Filter ◽  
Biofilm Development ◽  
Composite Steel

The treatment performance and biofilm development of the start-up stage in an up-flow Biological Aerated Filter (BAF) with composite steel slag media is investigated, while the operating conditions is HRT 2h, temperature 23-27°C, DO 3-5mg/L. The results showed that the composite steel slag media BAF could be secussfuly operated in a short time, while the phosphorus could be removed 90% in 8 days as well as the ammonia nitrogen and COD could be removed 80% in 25 days after the beginning of reactor start-up. At the same time, the biofilm on the carrier could be observed and a lot of protozoa population, such as Rotifera, Vorticellidae and Parameciidae, could be characteristiced with optical microscope in the BAF system. It is conclued that the operation of the composite steel slag media BAF for nitrogen and phosphorus removal could be carried out quickly and conveniently, and provided a unique advantage for the future application.

Biological phosphorus and nitrogen removal with biological aerated filter using denitrifying phosphorus accumulating organism

2005 ◽  
Vol 52 (10-11) ◽  
pp. 569-578 ◽  
Author(s):  
J. Lee ◽  
J. Kim ◽  
C. Lee ◽  
Z. Yun ◽  
E. Choi
Keyword(s):  
P Uptake ◽  
Biological Nutrient Removal ◽  
Biological Aerated Filter ◽  
Biological Phosphorus Removal ◽  
Nitrogen And Phosphorus ◽  
Suspended Growth ◽  
Oxic Zone ◽  
Aerated Filter ◽  
Biological Phosphorus ◽  
P Removal

In order to accomplish the biological nutrient removal with a weak sewage at low temperature, a hybrid process consisted of anoxic denitrifying phosphorus accumulating organism (dPAO) and nitrifying biological aerated filter (BAF) was studied in both lab and field pilot plants with weak sewage. The biofilm BAF was used as a post-nitrification process that provided sufficient nitrate to suspended growth dPAO. The anoxic/BAF configuration could remove nitrogen and phosphorus appreciably compared to other BNR systems. The enhanced biological phosphorus removal (EBPR) was mainly occurred in anoxic zone of suspended growth reactor. It has been found that P removal efficiency of dPAO was enhanced with an addition of a short oxic zone in suspended reactors compared to that of without oxic zone. However, the degree of aerobic P uptake in oxic zone was far lower than anoxic P uptake. The operating results of field plant indicated that dPAO/BAF configuration successfully reduced the adverse temperature effects at lower than 15°C.

Study on the Sewage Treatment by SBBR-BAF Filled with Ceramic Filling

2011 ◽  
Vol 299-300 ◽  
pp. 3-6
Author(s):  
Wei Li ◽  
Wei Wei ◽  
Yuan Liu ◽  
Tian Jiao Wang
Keyword(s):  
Removal Efficiency ◽  
Municipal Wastewater ◽  
Sewage Treatment ◽  
Treatment Plant ◽  
Biological Aerated Filter ◽  
Municipal Wastewater Treatment ◽  
Nitrogen And Phosphorus ◽  
Save Energy ◽  
Aerated Filter ◽  
Aeration Volume

In the biological aerated filter, the removal efficiency of phosphorus is poor, while the efficiency of organics and nitrogen are very well. In order to solve these problems, the sequence bio-film reactor connects to traditional biological aerated filter, ceramic filler was added to the system, study the effect of bio-film culturing and biological disposal capacity .Control intermittent time of anaerobic and aerobic and aeration volume, the removal effect of COD 、nitrogen and phosphorus are good in the sewage . The results show that anaerobic and aerated time are 3h and 4h in SBBR, the removal efficiency of COD、NH4+-N、TN and TP are 90.07%、85.12%、81.74% and 83.63%, the concentration are 31.37mg/L, 5.15㎎/L, 6.60㎎/L and 1.10㎎/L separately. All of these satisfy theⅠ-B criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). The system of SBBR-BAF run stably, removal sewage perfectly, avoid return and mud, save energy consumption.

Sign in / Sign up

Export Citation Format

Share Document