Effect of coal gangue-fly ash ceramic (CFC) media on municipal wastewater treatment in a pre-denitrification biological aerated filter

2011 ◽  
Vol 31 (1-3) ◽  
pp. 372-378 ◽  
Author(s):  
Hongbo Hu ◽  
Hongjun Han ◽  
Wei Wang ◽  
Bing Wang ◽  
Yufei Li
2012 ◽  
Vol 610-613 ◽  
pp. 1743-1746 ◽  
Author(s):  
Xing Yu Bian ◽  
Xing Sheng Kang ◽  
Yi Li ◽  
Min Kong ◽  
Yan Hao Zhang ◽  
...  

The performance of the municipal wastewater treatment using the Biological Aerated Filter (BAF) was investigated. The optimal operation parameters such as air/water ratio, water temperature, filtration velocity were achieved, and the removal efficiencies of CODCr, NH3 and SS were 80%, 98%, and 95%, respectively at the optimal conditions. The effluent can meet the integrated wastewater discharge standard in China.


2000 ◽  
Vol 41 (4-5) ◽  
pp. 1-4 ◽  
Author(s):  
J.J. Chen ◽  
D. McCarty ◽  
D. Slack ◽  
H. Rundle

The limitation of available land for wastewater treatment facilities has challenged environmental engineers in searching for efficient and effective treatment systems that will minimize space requirements for waste treatment. To meet these requirements, a fixed film biological process using a DeepBedTM filter for aerobic and anoxic treatment was developed. The innovative biotechnology uses sand as the media to which microorganisms attach and as the filter media for solids retention. The unique characteristics of the biosystem combine long sludge age and short hydraulic detention time and provide small footprints for the bioreactor. The novel technology has been successfully practiced for industrial and municipal wastewater treatment in three (3) continents. This article gives details of a US facility to treat coke plant effluent with high ammonia and phenol content, describes a plant in Taiwan for polishing plastic manufacturing wastewater by combining ozone and biofiltration, illustrates nitrogen removal from a semiconductor factory in Korea, and shows the results of a municipal treatment plant in Britain using BAF to pretreat peak loads from the dairy industry.


2011 ◽  
Vol 299-300 ◽  
pp. 3-6
Author(s):  
Wei Li ◽  
Wei Wei ◽  
Yuan Liu ◽  
Tian Jiao Wang

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.


2013 ◽  
Vol 361-363 ◽  
pp. 555-561
Author(s):  
Lei Zhang ◽  
Xun Wang

Efficient sedimentation tank and Biological Aerated Filter are introduced in extension project in Wuhan Huangpu road WWTP,the first-stage project pretreatment capacity of which is 10×104m3/d.This process provides high treatment efficiency while occupying a small footprintnoise reduction and has little environmental impact.The effluent quality meets the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002).This project demonstrates the successful handling of the environmental issues arising from the construction of wastewater treatment plantin highly urbanized area


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