Study on the Combination of Fixed Bed and Moving Bed Biofilm Reactor for Papermaking Terminal Wastewater Treatment

Papermaking wastewater mainly consists of black liquor, intermediate wastewater and white water. It suffers from its heavy amount, high level suspended solids and poor biodegradable property. In this paper, a combination of fixed bed and moving bed biofilm reactor was conducted to treat paper making wastewater in order to make full use of the advantages of both fixed bed and moving bed. As a result, the average values of COD, NH3-N and SS in effluent are 57.01 mg/L, 1.74 mg/L and 38 mg/L, respectively. The quality of the effluent could meet the demands of the Chinese standards for papermaking industrial water discharge pollutant.

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Bench scale study of moving bed biofilm reactor application as pre-treatment of raw water for water treatment plant (Case study: Pesanggrahan River)

MATEC Web of Conferences ◽

10.1051/matecconf/201927004009 ◽

2019 ◽

Vol 270 ◽

pp. 04009

Author(s):

Rhefa Fauza Setiani ◽

Setyo Sarwanto Moersidik ◽

Sandyanto Adityosulindro

Keyword(s):

Water Treatment ◽

Residence Time ◽

Treatment Process ◽

Ammonia Removal ◽

Biofilm Reactor ◽

Raw Water ◽

Moving Bed Biofilm Reactor ◽

Moving Bed ◽

Pre Treatment

The quality of surface water in Jakarta is on a serious polluted status. In order to reduce the Water Treatment processing load, a pre-treatment process is needed to eliminate parameters such as organic matter, ammonia, color, taste, and odor. This treatment generally uses chemical and physical processes, such as chlorination and activated carbon that produce harmful byproducts. Moving Bed Biofilm Reactor (MBBR) is one of the solutions developed to reduce the nutrient and organic levels in raw water. This study aims to improve the quality of raw water, by reducing the concentration of COD, NH3-N, Phosphate, and TSS before entering the conventional process. Reactor performance is assessed based on contaminant removal efficiency with variation of residence time (1 hour, 1.5 hours, 2 hours). The reactor is operated by using Kaldness K1 as the medium and oxygen supply of 7 L/min. The optimum residence time is 1,5 hours with the ability to remove COD, NH3-N, Phosphate, TSS 51.8% ± 0.2; 54.3% ± 0.28; 52.6% ± 0.19; and 77.7% ± 0.14 respectively. Based on the optimum residence time, the kinetics of the ammonia removal rate in MBBR takes place at zero order, with a rate constant removal of 0.0056 g/m2.day. The results showed that the higher concentration of ammonia, and organic contaminants treated, the higher the efficiency of MBBR. Apart from water quality improvement, pre-treatment process using MBBR can reduce coagulant dose from 50 mg/L to 9 mg/L, to decrease raw water turbidity from 135 NTU to 0.68 NTU before entering the coagulation-flocculation unit.

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Experimental Study on Treatment of Wastewater Containing Oil and Polyacrylamide by Aerobic and Anaerobic Bacteria

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.675-677.539 ◽

2014 ◽

Vol 675-677 ◽

pp. 539-542 ◽

Cited By ~ 1

Author(s):

Guang Meng Ren ◽

Yu Pan ◽

Xiu Min Yang ◽

Yan Yun Qiao ◽

Hong Wei Li ◽

...

Keyword(s):

Anaerobic Bacteria ◽

Biofilm Reactor ◽

Operating Conditions ◽

Moving Bed Biofilm Reactor ◽

Moving Bed ◽

Effluent Quality ◽

Sulphate Reducing Bacteria ◽

Reducing Bacteria ◽

Aerobic And Anaerobic

Wastewater containing oil and polyacylamide is a kind of organic wastewater, which is hard to treat. The combined process of moving-bed biofilm reactor and sulphate-reducing bacteria was used to treat the wastewater. Operating conditions of moving-bed biofilm reactor and sulphate-reducing bacteria were studied. Results indicate that the oil removal efficiency by moving-bed biofilm reactor can reach above 90% with 9 hours hydraulic retention time at 25°C, but it has no effect on polyacylamide. Sulphate-reducing bacteria can degrade polyacylamide, and polyacylamide conversion is about 50% at 37°C with 4 days culture time and 9ml inoculation size. The effluent quality of wastewater containing oil and polyacylamide can meet requirements of the first level in integrated wastewater discharge standard.

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Application of Moving Bed Biofilm Reactor and Fixed Bed Hybrid Biological Reactor for Oilfield Produced Water Treatment: Influence of Total Dissolved Solids Concentration

Energies ◽

10.3390/en14217297 ◽

2021 ◽

Vol 14 (21) ◽

pp. 7297

Author(s):

Nicolas Lusinier ◽

Isabelle Seyssiecq ◽

Cecilia Sambusiti ◽

Matthieu Jacob ◽

Nicolas Lesage ◽

...

Keyword(s):

Activated Sludge ◽

Produced Water ◽

Bacterial Species ◽

Fixed Bed ◽

Total Dissolved Solids ◽

Biofilm Reactor ◽

Moving Bed Biofilm Reactor ◽

Dissolved Solids ◽

Moving Bed ◽

Oilfield Produced Water

This experimental paper deals with the development of a hybrid biological reactor for the treatment of a synthetic oilfield produced water under an increase in total dissolved solids (TDS) concentration. To comply with strengthening regulations concerning produced water discharge and peculiar produced water compositions, a moving bed biofilm reactor (MBBR) consisting in a combination of free activated sludge and moving biofilm supports was compared to a fixed bed hybrid biological reactor (FBHBR) consisting in a combination of free activated sludge and a fixed biofilm support. After a 216 days experimental period, the MBBR and the FBHBR were efficient to treat a synthetic produced water with chemical oxygen demand (COD) removal rate above 90% under an increase in TDS concentrations from 1.5 to 20 g·L−1. Ecotoxicity measurements on freshwater and marine microorganisms revealed an absence of toxicity on treated waters. A decrease in bacterial diversity indices with respect to the inoculum was observed in both bioreactors. This suggests that the increase in TDS concentrations caused the predominance of a low number of bacterial species.

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