Characteristics and Treatment of Reed Pulping Medium Wastewater by Membrane Bioreactor

Li, Na; Yang, Feng; Niu, Mei Hong; Ping, Qing Wei; Zhang, Jian; Shi, Hai Qiang

doi:10.4028/www.scientific.net/amr.610-613.1605

Cited by 4 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a major water pollution source, PMW contains high concentrations of inorganic and organic matters and is highly colored. Thus, the generated effluents contains a wide range of contaminants, such as salts, lignin, cellulose, semicellulose, etc., [3] which will result in high biological oxygen demand (BOD) and chemical oxygen demand (COD).…”

Section: Introductionmentioning

confidence: 99%

Anaerobic degradation of pulping midcourse wastewater by rumen microorganisms in batch reactor

Yang

Jin

2015

Desalination and Water Treatment

Self Cite

View full text Add to dashboard Cite

2015) Anaerobic degradation of pulping midcourse wastewater by rumen microorganisms in batch reactor, Desalination and Water Treatment, 53:1, 36-40, A B S T R A C TBatch experiments were performed to investigate the anaerobic degradation of pulping midcourse wastewater (PMW) by rumen microorganisms (RM). The operation included two stages. In stage one, 400 mL of PMW and 100 mL of RM were fed into a stirred batch-test reactor (1.2 L) which was kept at 39 ± 1˚C for 14 days. The pH of the reactor was maintained at 6.7-7.0 to accommodate rumen organisms. Declined volatile fatty acids production was in line with the trend of the soluble chemical oxygen demand (SCOD) concentration profile. The SCOD removal efficiency was 38.0% at the end of stage one. The results showed that rumen organisms could accommodate PMW. The treatment effect of PMW by RM was investigated in stage two. About 200 mL of fresh PMW was added to the reactor. The maximum SCOD removal efficiency was 53.6% in stage two. Acetate and propionate were the major aqueous fermentation products, while butyrate and valerate were also found in smaller quantities. Generated biogas was composed of carbon dioxide, methane and hydrogen. This research provides useful information for the application of rumen cultures to the treatment of PMW.

show abstract

Section: Introductionmentioning

confidence: 99%

Anaerobic degradation of pulping midcourse wastewater by rumen microorganisms in batch reactor

Yang

Jin

2015

Desalination and Water Treatment

Self Cite

View full text Add to dashboard Cite

show abstract

Microbiota dynamics related to environmental conditions during the fermentative production of Fen-Daqu, a Chinese industrial fermentation starter

Zheng

Nout

et al. 2014

International Journal of Food Microbiology

110

View full text Add to dashboard Cite

Parameter Calibration of Discrete Element Model of Wine Lees Particles

Zhang,

Wang,

Wang

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

In order to investigate the contact characteristics of the mechanical parts of the brewing robot with wine lees particles, it is essential to calibrate the parameters of the discrete elemental model of wine lees particles. This paper proposes a method based on tests of the angle of repose. The simulation test is conducted to establish a regression model and combined with physical tests to find optimization. The contact model used in simulation modeling is Hertz-Mindlin with Johnson-Kendall-Roberts. Not all discrete element model parameters of wine lees particles have a significant impact on the angle of repose, so screening through Plackett-Burman Design is performed. The results indicate that the restitution coefficient between wine lees particles and restitution coefficient between wine lees particle and steel plate have a significant impact on angle of repose. Additionally, another parameter that is difficult to obtain, namely surface energy (JKR), also plays a crucial role. The optimal value interval for these three parameters is determined by the steepest ascent test, and a linear regression model for angle of repose is built through Box-Behnken Design. The optimal values obtained are as follows: restitution coefficient between wine lees particles—0.603; restitution coefficient between wine lees particle and steel plate—0.595; JKR—0.083. Finally, in order to verify the accuracy of calibrated parameters, simulation verification tests are carried out which show that there is only a relative error rate at 0.18% between simulated angle of repose and actual angle of repose, indicating that accurate calibration parameters were achieved. This study can provide reference for selecting discrete element model parameters for wine lees particles in future research endeavors.

show abstract

Characteristics and Treatment of Reed Pulping Medium Wastewater by Membrane Bioreactor

Cited by 4 publications

References 3 publications

Anaerobic degradation of pulping midcourse wastewater by rumen microorganisms in batch reactor

Anaerobic degradation of pulping midcourse wastewater by rumen microorganisms in batch reactor

Microbiota dynamics related to environmental conditions during the fermentative production of Fen-Daqu, a Chinese industrial fermentation starter

Parameter Calibration of Discrete Element Model of Wine Lees Particles

Contact Info

Product

Resources

About