Nutrient removal from low strength domestic wastewater in sequencing batch biofilm reactor

2001 ◽  
Vol 44 (1) ◽  
pp. 181-186 ◽  
Author(s):  
U. Altinbas
Keyword(s):  
Nutrient Removal ◽  
Phosphorus Removal ◽  
Domestic Wastewater ◽  
Packed Bed ◽  
Biofilm Reactor ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
Packed Bed Column ◽  
Sequencing Batch Biofilm Reactor ◽  
Removal Efficiencies

Nutrient removal was investigated in a packed bed column, which was operated by changing of aerated and non-aerated periods. Good removal efficiencies for nitrogen and phosphorus were obtained at long aeration period. Highest nitrification efficiency was observed in run3 because the aeration period was enough to allow nitrification. NO3 concentration was not significantly changed during the cycle, because of simultaneous denitrification during aerobic stage. Nitrogen and phosphorus removal efficiencies reached to 71 and 74% in run3 respectively. Effluent concentrations of TKN, Tot.P, NH4 and NO3 were found as 3.8, 3, 1 and 2.5 mg/l respectively.

Nitrogen and Phosphorus Removal in Synthetic Domestic Wastewater Using SBBR Technology

2012 ◽  
Vol 209-211 ◽  
pp. 1906-1909 ◽  
Author(s):  
Yun Xiao Jin ◽  
Xue Lin Li
Keyword(s):  
Phosphorus Removal ◽  
Municipal Wastewater ◽  
Domestic Wastewater ◽  
Biofilm Reactor ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
Sequencing Batch Biofilm Reactor ◽  
Removal Efficiencies ◽  
Biological Nitrogen ◽  
Nitrogen Phosphorus

Biological nitrogen phosphorus removal by the use of Sequencing Batch Biofilm Reactor (SBBR) is today an accepted and well proven technology. The objective of this study was to evaluate the performances of nitrogen and phosphorus removal in this laboratory-scale SBBR in treating synthetic domestic wastewater. The system was designed to handle at C/N ratio changing from 10:1, 5:1 to 3.3:1. The results were shown the average removal efficiencies of total phosphorus (TP) in this system were remarkable (>94.0%), however, the average removal efficiencies of total nitrogen (TN) reached 87.2%, 65.4%, 46.1% respectively as C/N ratio changing from 10:1, 5:1 to 3.3:1. Therefore we could reach a conclusion that the SBBR have the remarkable performance at the C/N ratios of 10:1 and 5:1, and the system is suitable to treat domestic or municipal wastewater.

scholarly journals Role of different plants on nitrogen and phosphorus removal at low temperature in lab-scale constructed wetlands

2019 ◽  
Vol 118 ◽  
pp. 01023 ◽  
Author(s):  
Liwei Xiao ◽  
Hong Jiang ◽  
Chao Shen ◽  
Ke Li ◽  
Lei Hu
Keyword(s):  
Constructed Wetlands ◽  
Nutrient Removal ◽  
Phosphorus Removal ◽  
Sichuan Basin ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
Relative Growth ◽  
Stems And Leaves ◽  
Removal Efficiencies

In this study, plant growth and nitrogen and phosphorus removal efficiency in lab-scale CWs by five plants (H. vulgaris, N. peltatum, N. tetragona, N. pumilum, S. trifolia) in winter in Sichuan basin was evaluated. H. vulgaris and N. tetragona would well adapt to the winter wetland environment, and the relative growth at the end of the experiment was 89.83% and 66.85%, respectively. In winter, H. vulgaris kept growing with accumulated stems and leaves, while growth of N. tetragona was mainly caused by the growth of roots and stems underwater. In addition, during the winter, removal efficiencies were 66.29%, 57.47%, 54.78%, 55.47%, 41.66% of TN and 62.40%, 69.75%, 69.97%, 65.65%, 76.55% of TP for each planted CWs respectively. The results indicated that the removal of nitrogen and phosphorus from CWs was mainly achieved by substrate, while a small portion was attributed by plant. However, plants like H. vulgaris and N. tetragona, in the CWs in winter can play the role of landscaping. Thus, H. vulgaris could be considered as a suitable and effective nutrient removal plant for treatment of nitrogen and phosphorus water in winter wetlands in Sichuan basin.

Extracellular polymeric substances in relation to nutrient removal from a sequencing batch biofilm reactor

2001 ◽  
Vol 43 (6) ◽  
pp. 185-192 ◽  
Author(s):  
E. Choi ◽  
Z. Yun ◽  
Y. Park ◽  
H. Lee ◽  
H. Jeong ◽  
...  
Keyword(s):  
Nitrogen Removal ◽  
Nutrient Removal ◽  
Phosphorus Removal ◽  
Biofilm Reactor ◽  
Bulk Liquid ◽  
Growth Media ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
Biofilm Growth ◽  
Biological Nitrogen

Experimental investigations were performed to determine the possibility of simultaneous biological nitrogen and phosphorus removal during various biofilm processes in conjunction with biofilm characterisation, especially extracellular polymeric substance (EPS). Since biological nitrogen removal requires an alternating exposure of anaerobic-anoxic-oxic conditions in the bulk liquid that surrounds the biofilm growth media, a sequencing batch reactor (SBR)-type operation was used. Various materials including expanded clay, polystyrene, polyurethane, and acrylic materials were used as the biofilm growth support medium. Simultaneous nitrogen and phosphorus removal was possible with SBR, but it was postulated that nutrient removal efficiencies varied with film thickness. Thinner biofilm promoted nitrification and phosphorus removal, but thicker biofilm enhanced denitrification and reduced phosphorus removal. EPS contents were similar regardless of support media types or biofilm configuration, but EPS contents gradually increased as the film growth continued after backwashing. EPS contents were increased with increased nitrogen removal, but it was difficult to define its relation with phosphorus removal. In addition, suspended solids removal was correlated well with the EPS content in the biofilms.

scholarly journals Nitrogen and phosphorus removal efficiency and algae viability in an immobilized algae and bacteria symbiosis system with pink luminescent filler

2021 ◽  
Author(s):  
Chen Xu ◽  
Liupeng Wang ◽  
Zaohong Liu ◽  
Guanjun Cai ◽  
Jian Zhan
Keyword(s):  
Phosphorus Removal ◽  
Biofilm Reactor ◽  
Pollutant Removal ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
Chl A ◽  
Oxygen Generation ◽  
Algae And Bacteria ◽  
Removal Efficiencies ◽  
Immobilized Algae

Abstract In this study, an immobilized algae and bacteria symbiotic biofilm reactor (ABSBR) with pink luminescent filler (PLF) was constructed. The effects of PLF addition in the construction of an algae and bacteria symbiotic biofilm system on the nitrogen and phosphorus removal efficiencies and algae viability were evaluated. Our results showed that for influent TN and TP concentrations of 40 ± 5 and 5 ± 0.8 mg/L, respectively, the pollutant removal rates (PRRs) of TN and TP by the ABSBR can reach up to 74.74 and 88.36%, respectively. The chlorophyll-a (chl-a) concentration on the PLF reaches approximately 5,500 μg/L with a specific oxygen generation rate (SOGR) of 65.48 μmolO2 mg−1Chl-a h−1. These results indicate that the adding PLF into algae and bacteria symbiosis systems can effectively improve the nitrogen and phosphorus removal efficiencies of the sewage as well as increase biomass and viability of the algae in the system.

Study of the Nitrogen and Phosphorus Removal Effects in SBBR by Microbial Immobilization Technology

2011 ◽  
Vol 183-185 ◽  
pp. 372-375
Author(s):  
Ya Feng Li ◽  
Ying Hao ◽  
Jing Bo Yao
Keyword(s):  
Phosphorus Removal ◽  
Operation Mode ◽  
Domestic Sewage ◽  
Biofilm Reactor ◽  
Simultaneous Nitrification And Denitrification ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
Sequencing Batch Biofilm Reactor ◽  
Immobilization Technology ◽  
Micro Organisms

This study filled polyurethane foam in SBR as micro-organisms immobilized carrier, formed a sequencing batch biofilm reactor (SBBR). It applies the immobilized microbial technology to SBBR, under the A/O operation mode，we cultivate them in order to study the effect of the technology of nitrogen and phosphorus removal in the domestic sewage. The carrier which was used in the SBBR, created aerobic - anoxic - anaerobic micro-environment in space, and appeared a good performance of simultaneous nitrification and denitrification (SND). The results show that adding this kind of carriers in SBBR, successfully achieved a goal in the field of nitrogen and phosphorus removal. The average removal rates of CODCr, NH4+-N, TN and TP is respectively 84.23%、96.94%、58.40% and 91.38%.

scholarly journals Efficient carbon, nitrogen and phosphorus removal from low C/N real domestic wastewater with aerobic granular sludge

2020 ◽  
Vol 305 ◽  
pp. 122961 ◽  
Author(s):  
Riccardo Campo ◽  
Sara Sguanci ◽  
Simone Caffaz ◽  
Lorenzo Mazzoli ◽  
Matteo Ramazzotti ◽  
...  
Keyword(s):  
Phosphorus Removal ◽  
Domestic Wastewater ◽  
Granular Sludge ◽  
Aerobic Granular Sludge ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal
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