Enhancement of mariculture wastewater treatment using moving bed biofilm reactors filled with modified biocarriers: Characterisation, process performance and microbial community evaluation

2021 ◽  
Vol 291 ◽  
pp. 112724
Author(s):  
Abubakar Shitu ◽  
Gang Liu ◽  
Yadong Zhang ◽  
Zhangying Ye ◽  
Jian Zhao ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Microbial Community ◽  
Process Performance ◽  
Moving Bed ◽  
Biofilm Reactors ◽  
Community Evaluation

Small Wastewater Treatment Plants Based on Moving Bed Biofilm Reactors

1993 ◽  
Vol 28 (10) ◽  
pp. 351-359 ◽  
Author(s):  
H. Ødegaard ◽  
B. Rusten ◽  
H. Badin
Keyword(s):  
Wastewater Treatment ◽  
Pollution Control ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Biofilm Reactor ◽  
Chemical Plants ◽  
Moving Bed Biofilm Reactor ◽  
Moving Bed ◽  
Biofilm Reactors ◽  
Control Authority

In 1988 the State Pollution Control Authority in Norway made recommendations regarding process designs for small wastewater treatment plants. Amongst these were recommendations for biological/chemical plants where biofilm reactors were used in combination with pretreatment in large septic tanks and chemical post treatment. At the same time the socalled “moving bed biofilm reactor” (MBBR) was developed by a Norwegian company. In this paper, experiences from a small wastewater treatment plant, based on the MBBR and on the recommendations mentioned, will be presented.

Technical, hygiene, economic, and life cycle assessment of full-scale moving bed biofilm reactors for wastewater treatment in India

2017 ◽  
Vol 25 (3) ◽  
pp. 2552-2569 ◽  
Author(s):  
Anju Singh ◽  
Sheetal Jaisingh Kamble ◽  
Megha Sawant ◽  
Yogita Chakravarthy ◽  
Absar Kazmi ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Full Scale ◽  
Moving Bed ◽  
Biofilm Reactors

Influence of surface modification of polyethylene biocarriers on biofilm properties and wastewater treatment efficiency in moving-bed biofilm reactors

2012 ◽  
Vol 65 (6) ◽  
pp. 1021-1026 ◽  
Author(s):  
Sheng Chen ◽  
Xiang Cheng ◽  
Xu Zhang ◽  
Dezhi Sun
Keyword(s):  
Wastewater Treatment ◽  
Surface Modification ◽  
Denaturing Gradient Gel Electrophoresis ◽  
Formation Rate ◽  
Biomass Concentration ◽  
Surface Modifications ◽  
Chemical Oxidation ◽  
Moving Bed ◽  
Biofilm Reactors ◽  
Oxidation Surface

Two methods of surface modification of polyethylene biocarriers, chemical oxidation-surface covering with ferric ion (CO-SCFe) and chemical oxidation-surface grafting with gelatin (CO-SGG), were studied for improving the efficiency of wastewater treatment by moving-bed biofilm reactors. The results showed that two surface modifications caused corrosion pits to increase surface roughness, and brought –(C=O)–/–O–C–O– groups and ferric ions to the biocarrier surface, respectively. The positively charged surface increased the hydrophilicity and biological affinity of the biocarrier. The biofilm formation rate was improved by 37.5 and 60% after surface modifications of CO-SCFe and CO-SGG; the concentration of biomass on the biocarriers was improved by 54.8 and 76.1% and the COD removal efficiencies were increased by 10.63 and 8.64%, respectively. Polymerase chain reaction-denaturing gradient gel electrophoresis analysis showed that the microbial populations in the biofilm were almost the same after surface modifications, but the biomass concentration was greatly increased.

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