Simulation of a passively aerated biological filter (PABF) immobilized with non‐woven polyester fabric (NWPF) for wastewater treatment using GPS‐X

2021 ◽  
Author(s):  
Mohamed S. Hellal ◽  
Sohair I. Abou‐Elela
Keyword(s):  
Wastewater Treatment ◽  
Polyester Fabric ◽  
Biological Filter

Decentralized wastewater treatment using passively aerated biological filter

2017 ◽  
Vol 40 (2) ◽  
pp. 250-260 ◽  
Author(s):  
Sohair I. Abou-Elela ◽  
Mohamed S. Hellal ◽  
Olfat H. Aly ◽  
Salah A. Abo-Elenin
Keyword(s):  
Wastewater Treatment ◽  
Decentralized Wastewater Treatment ◽  
Biological Filter

Upgrading of Small Municipal Wastewater Treatment Plants with Heavy Dairy Loading by Introduction of Aerated Submerged Biological Filters

1990 ◽  
Vol 22 (7-8) ◽  
pp. 191-198 ◽  
Author(s):  
Hallvard Ødegaard ◽  
Bjørn Rusten
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Combined Treatment ◽  
Organic Load ◽  
Municipal Wastewater Treatment ◽  
Biological Filter ◽  
Municipal Wastewater Treatment Plants ◽  
Insufficient Knowledge ◽  
Biological Filters

Most of the dairies in Norway discharge their wastewater to the municipal sewers. Insufficient knowledge about the organic load coming from the dairies, has resulted in inadequate design and organic overloading in the municipal wastewater treatment plants of this category. Several of the plants that originally based their biological process upon RBC as the bioprocess, have experienced mechanical breakdown of the RBC system. The submerged biological filter (SABF) has been introduced as an alternative biofilm method that may be used when broken down RBC-plants (or activated sludge plants) are to be upgraded. The paper describes results from pilot-plant experiments on dairy waste when the SABF is used for pretreatment, as well as results from plants in practice where the SABF is used for combined treatment of the dairy and municipal wastewater. It is shown how pretreatment in a balancing tank may be established, and results from the use of an alternative floating biofilm media are given.

Effect of Municipal Wastewater Treatment by Biological - Ecological Filter (BEF)

2011 ◽  
Vol 365 ◽  
pp. 361-366
Author(s):  
Mei Yan Xing ◽  
Ya Nan Lin ◽  
Hao Wang ◽  
Jian Yang ◽  
Zhi Dong Huang
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Pilot Scale ◽  
Municipal Wastewater Treatment ◽  
Effluent Quality ◽  
Biological Filter ◽  
Ecological Filter ◽  
Packing Layer ◽  
Better Than

A Pilot-scale study was conducted to treat municipal wastewater by Biological-Ecological filter (BEF), which is composed by anaerobic hydrolysis pool (AHP), high load biological filter (BF) and vermifilter (VF). The results demonstrated that when the influent concentrations of COD and NH3-N were in the range of 190~300 mg/L and 25~35 mg/L, respectively, the effluent concentration of them ranged from 45 to 65 mg/L and 8 to 20 mg/L with the average removal efficiency of 73.6% and 50%, respectively. Meanwhile, the effluent average SS concentration was less than 15 mg/L. The effluent quality could steadily meet the second level criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002) in China. The removal performance of fine zeolite was significantly better than the coarse one and heightening packing layer had little effect on the removal of COD and NH3-N. This study verified that BEF system for municipal wastewater treatment was feasible.

The Effect of Simulated Domestic Wastewater Treatment by Biofilm and Biological Filter Processing

2013 ◽  
Vol 395-396 ◽  
pp. 1248-1252
Author(s):  
Xiang Wei Sun ◽  
Shan Quan Jiang ◽  
Yun Cheng Xie
Keyword(s):  
Wastewater Treatment ◽  
Lower Energy ◽  
Removal Rate ◽  
Sewage Treatment ◽  
Domestic Wastewater ◽  
Domestic Sewage ◽  
Organic Loading ◽  
Treatment Efficiency ◽  
Biological Filter ◽  
Domestic Wastewater Treatment

Simulative wastewater was treated by a biofilm with soft filling and biological filter processing, the removal rate of COD /TN/NH4+-N and TP were discussed at different C/N ratio. The combined processing of biofilm and biological filter was studied. The results showed that the removal rate of COD is 80%. Biofilm had highly treatment efficiency and biological filter processing needed lower energy at low organic loading. The combined processing showed that the removal rate of COD and NH4+-N is more than 80% and 65% respectively. It will help for further study of domestic sewage treatment.

Study of Electroplating Wastewater Treatment by Magnetoelectric Oxidation Biological Filter

2012 ◽  
Vol 518-523 ◽  
pp. 2218-2223
Author(s):  
Xu Xin Zhao ◽  
Yun Long Peng ◽  
Chang Kun Liu ◽  
Lin Fang
Keyword(s):  
Wastewater Treatment ◽  
Ph Value ◽  
Removal Rate ◽  
Aeration Rate ◽  
Core Component ◽  
Electroplating Wastewater ◽  
Treatment Performance ◽  
Carbon Tube ◽  
Biological Filter ◽  
Treatment Conditions

In this study, a magnetlectric oxidation biological filter (MOBF) was investigated for the removal of organic pollutants, heavy metal ions and cyanide ions in electroplating wastewater. The influencing factors including the inlet water flow, external DC voltage, aeration rate of the MOBF on wastewater treatment performance were studied. Data analyses show that with iron-carbon tube as the core component, the MOBF’s removal rate for COD, Cr6+, Cu2+, Zn2+ and CN- were 93%, 99.99%, 99.7%, 96% and 99%, respectively. The best treatment conditions for the MOBF were as follows: the inlet and outlet pH value of 3.5 and 8.5 respectively, the external voltage of 3.8V. When the inlet wastewater flux is 40L/h, the aeration rate is 1m3/h.

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