An Innovative Combination Process for PCBs Removing in Aged Landfill Leachate

PCBs removal in the aged leachate by a new combination process, combined coagulation with a two-staged sequencing batch biofilm reactor with Luffa Sponges (LS) as the biomass carriers (LS-SBBR), was studied in this research. The results indicated that the removal rate of total PCBs in the aged leachate was 51.97%, and it was achieved mainly by the removal of trichlorobiphenyls, the PCBs contents in sludge in the two-staged LS-SBBR were consistent with the conclusion that the PCBs removal in liquid phase of the second LS-SBBR was higher than that of the first LS-SBBR.

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PCBs Removing in Aged Landfill Leachate by an Innovative Biofilm Reactor with Biomass Carriers - Luffa Sponges

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.670-671.253 ◽

2014 ◽

Vol 670-671 ◽

pp. 253-257

Author(s):

Min Zhang ◽

Shi Bin Xia

Keyword(s):

Liquid Phase ◽

Landfill Leachate ◽

Natural Fiber ◽

Biofilm Reactor ◽

Total Pcbs ◽

New Combination ◽

Combination Process ◽

Sequencing Batch Biofilm Reactor

PCBs removal in the aged leachate by a new combination process based on an innovative biofilm reactor with natural fiber media, combined coagulation with a two-staged sequencing batch biofilm reactor with Luffa Sponges (LS) as the biomass carriers (LS-SBBR), was studied in this paper. The results indicated that the total PCBs removal in the aged leachate was 51.97%, and the PCBs removals are mainly achieved by the removal of trichlorobiphenyls, the PCBs contents in sludge in the two-staged LS-SBBR were consistent with the conclusion that the PCBs removal in liquid phase of the second LS-SBBR was higher than that of the first LS-SBBR.

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High organic removal of landfill leachate using a continuous flow sequencing batch biofilm reactor (CF-SBBR) with different biocarriers

The Science of The Total Environment ◽

10.1016/j.scitotenv.2021.147680 ◽

2021 ◽

pp. 147680

Author(s):

Nguyen Hong Dan ◽

Tran Le Luu

Keyword(s):

Landfill Leachate ◽

Continuous Flow ◽

Biofilm Reactor ◽

Sequencing Batch Biofilm Reactor ◽

Organic Removal

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Biological treatment of leachates from hazardous waste landfills using SBBR technology

Water Science & Technology ◽

10.2166/wst.1996.0652 ◽

1996 ◽

Vol 34 (7-8) ◽

pp. 437-444 ◽

Cited By ~ 11

Author(s):

J. Dollerer ◽

P. A. Wilderer

Keyword(s):

Hazardous Waste ◽

Removal Rate ◽

Fixed Bed ◽

Biofilm Reactor ◽

Fixed Bed Reactor ◽

Bulk Liquid ◽

Sequencing Batch Biofilm Reactor ◽

Aeration System ◽

Volatile Organic ◽

Hazardous Waste Landfills

Bench-scale experiments with two different types of fixed bed reactor have been conducted in order to investigate the potential of SBBr technology (Sequencing Batch Biofilm Reactor) for treatment of leachates from different hazardous waste landfills. Reactor A was equipped with a membrane oxygenatition system for bubble free transfer of oxygen into the bulk liquid. In constract, reactor B was bubble aerated. The process was found to be remarkably stable. An average DOC removal rate of 68% was achieved with a 12-hour cycle. The emission of biodegradable volatile organic substances was observed to be significantly reduced by using bubble free aeration system.

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Landfill leachate treatment using the sequencing batch biofilm reactor method integrated with the electro-Fenton process

Chemical Papers ◽

10.2478/s11696-013-0504-8 ◽

2014 ◽

Vol 68 (6) ◽

Cited By ~ 7

Author(s):

Dao-Bin Zhang ◽

Xiao-Gang Wu ◽

Yi-Si Wang ◽

Hui Zhang

Keyword(s):

Landfill Leachate ◽

Oxygen Demand ◽

Ammonia Nitrogen ◽

Biological Oxygen Demand ◽

Biofilm Reactor ◽

Electrolysis Time ◽

Fenton Process ◽

Optimal Conditions ◽

Leachate Treatment ◽

Sequencing Batch Biofilm Reactor

AbstractA study was conducted on the treatment of landfill leachate by combining the sequencing batch biofilm reactor (SBBR) method with the electro-Fenton method. The reduction of chemical oxygen demand (COD), biological oxygen demand (BOD5), and ammonia nitrogen (NH4+-N) from the leachate by the SBBR method was investigated. For the electro-Fenton experiment, the changes in COD and total organic carbon (TOC) with the increase in H2O2 dosage and electrolysis time under optimal conditions were also analysed. The results showed that the average efficiencies of reduction of COD, BOD5, and NH4+ -N achieved using the SBBR method were 21.6 %, 54.7 %, and 56.1 %, respectively. The bio-effluent was degraded by the subsequent electro-Fenton process, which was rapid over the first 30 min then subsequently slowed. After 60 min of the electro-Fenton treatment, the efficiencies of reduction of TOC, COD, and BOD5 were 40.5 %, 71.6 %, and 61.0 %, respectively. There is a good correlation between the absorbance of leachate at 254 nm (UV254) and COD or TOC during the electro-Fenton treatment.

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Effect of temperature and NH4+-N influent concentration on the nitrogen removal effect of luffa cylindrical sponge carrier sequencing batch biofilm reactor

E3S Web of Conferences ◽

10.1051/e3sconf/202021803033 ◽

2020 ◽

Vol 218 ◽

pp. 03033

Author(s):

Yafeng Li ◽

Jianbo Wu ◽

Yuemeng Bai ◽

Ning Feng

Keyword(s):

Nitrogen Removal ◽

Removal Rate ◽

Domestic Sewage ◽

Biofilm Reactor ◽

Effect Of Temperature ◽

Biological Nitrogen Removal ◽

Treatment Rate ◽

Influent Concentration ◽

Sequencing Batch Biofilm Reactor ◽

Biological Nitrogen

In order to improve the efficiency of biological nitrogen removal, the experiment used the luffa cylindrical sponge carrier sequencing batch biofilm reactor to treat domestic sewage, and it studied the temperature on the removal effect of TN in the sewage in the reactor and the changes of various types of nitrogen. The results showed that the TN treatment rate of the luffa cylindrical sponge carrier SBBR reached the peak at 30 °C, the removal rate was 82.25%, indicating that the luffa cylindrical sponge carrier SBBR is very suitable for the removal of nitrogen from domestic sewage.

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Application of sequencing batch biofilm reactor (SBBR) to recycled paper mill effluent treatment

Nordic Pulp & Paper Research Journal ◽

10.1515/npprj-2021-0030 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Shuangshuang Chen ◽

Lirong Lei ◽

Youming Li

Keyword(s):

Removal Rate ◽

Oxygen Demand ◽

Total Suspended Solid ◽

Paper Mill ◽

Suspended Solid ◽

Biofilm Reactor ◽

Effluent Treatment ◽

Recycled Paper ◽

Paper Mill Effluent ◽

Sequencing Batch Biofilm Reactor

Abstract Paper mill effluent has been characterized as recalcitrant because of containing lignin and its derivatives. Since biofilm system exhibits a notable potential for the removal of recalcitrant contaminants, a sequencing batch biofilm reactor (SBBR) was employed to treat coagulated recycled paper mill effluent in this study. The results indicated that the SBBR removed 91.3 % of chemical oxygen demand (COD), whilst total suspended solid (TSS) and color removal reached 83.1 % and 71.0 %, respectively. The microbial analysis suggested that three typical heterotrophic phyla, Proteobacteria, Bacteroidetes and Acidobacteria are dominant bacteria and reflected the removal of recalcitrant contaminants. The COD removal rate of SBBR is evidently superior to conventional activated sludge process due to high sludge concentration as well as long sludge retention time (SRT). Whilst the problem of sludge bulking can be successfully avoided, the blockage of reactor caused by TSS accumulation and microbial growth deserve further investigation.

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Study the Effects of Environmental Factors on Simultaneous Nitrification and Denitrification in SBBR

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.113-116.904 ◽

2010 ◽

Vol 113-116 ◽

pp. 904-907

Author(s):

Ya Feng Li ◽

Ying Hao ◽

Jing Bo Yao ◽

Ting Zhang

Keyword(s):

Wastewater Treatment ◽

Municipal Wastewater ◽

Removal Rate ◽

Treatment Plant ◽

Biofilm Reactor ◽

Simultaneous Nitrification And Denitrification ◽

Municipal Wastewater Treatment ◽

Sequencing Batch Biofilm Reactor ◽

Nitrification And Denitrification ◽

Micro Organisms

The experiment studies the phenomenon of simultaneous nitrification and denitrification (SND) in SBBR filled with polyurethane as micro-organisms immobilized carriers. Polyurethane fills in SBR as micro-organisms immobilized carriers, formation of a Sequencing Batch Biofilm Reactor (SBBR). Under the anaerobic/aerobic conditions, we studied the effects of C/P, C/N and DO on SND. The results showed that when COD was 400mg/L, C/P was 43.2~50.2, C/N was 9.41~11.9 of the influent, the concentration of DO was 3.31~4.01mg/L, the effect of TN removal was good. When C/P was 46.9, C/N was 10.3, the concentration of DO was 3.58mg/L, the removal rate of TN was 83.71%, TN effluent was 6.45mg/L. TN effluent followed byⅠA standard of “Discharge standard of pollutants for municipal wastewater treatment plant”. DO concentrations impact the forms of nitrogen in the effluent. C/P, C/N and DO play an important role on SND in SBBR filled with polyurethane. Controlling these factors effectively can inhance the effect of nitrogen removal.

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Characteristics of Nitrogen Removal from Old Landfill Leachate by Sequencing Batch Biofilm Reactor

American Journal of Applied Sciences ◽

10.3844/ajassp.2007.211.214 ◽

2007 ◽

Vol 4 (4) ◽

pp. 211-214 ◽

Cited By ~ 31

Author(s):

Long Tengrui ◽

Anas F. Al-Harbawi ◽

Lin Ming Bo ◽

Zhai Jun ◽

Xiang Yu Long

Keyword(s):

Nitrogen Removal ◽

Landfill Leachate ◽

Biofilm Reactor ◽

Sequencing Batch Biofilm Reactor

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Treatment of Ammonia-Rich Swine Wastewater Using a Novel IOC-SBBR Process

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.113-116.655 ◽

2010 ◽

Vol 113-116 ◽

pp. 655-661

Author(s):

Yong Ming Wu ◽

Jin Bao Wan ◽

Ji Hai Xiong ◽

Shun Fa Wang ◽

Ping Gu

Keyword(s):

Removal Efficiency ◽

Removal Rate ◽

Operation Mode ◽

High Strength ◽

Biofilm Reactor ◽

Swine Wastewater ◽

Combined Process ◽

Sequencing Batch Biofilm Reactor ◽

High Ammonia ◽

Cost Efficient

To establish a cost-efficient wastewater treatment system for the ammonia-rich swine wastewater, a combined process consisting of Internal and outer Circulation (IOC) anaerobic reactor and Sequencing Batch Biofilm Reactor (SBBR) was developed in this study. The combined process could remove about 91.7% of COD and 86.4% of NH4+-N, but TN removal efficiency was undesired, the average TN removal rate was only 28.5%. The optimization of SBBR operation mode to increase the oxygen - anoxic alternating frequency was conducive to the combined process of COD, NH4+-N and the TN removal rate reached 95.6%, 95.4% and 78.6%, respectively. The combined process has high removal efficiency of high ammonia and organic wastewater, is attractive for the treatment of wastewater containing high strength ammonia and carbon.

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