scholarly journals Application of submerged membrane bioreactor technology for the treatment of high strength dairy wastewater

2018 ◽  
Vol 35 (1) ◽  
pp. 91-100 ◽  
Author(s):  
Hanife Sari Erkan ◽  
Gorkem Gunalp ◽  
Guleda Onkal Engin
Keyword(s):  
Membrane Bioreactor ◽  
High Strength ◽  
Dairy Wastewater ◽  
Submerged Membrane Bioreactor

Effect of 200 days' sludge retention time on performance of a pilot scale submerged membrane bioreactor for high strength industrial wastewater treatment

2006 ◽  
Vol 53 (11) ◽  
pp. 269-276 ◽  
Author(s):  
C.T. Hay ◽  
D.D. Sun ◽  
S.L. Khor ◽  
J.O. Leckie
Keyword(s):  
Retention Time ◽  
Industrial Wastewater ◽  
Membrane Bioreactor ◽  
Hydraulic Retention Time ◽  
High Strength ◽  
Pilot Scale ◽  
Submerged Membrane Bioreactor ◽  
Sludge Retention Time ◽  
Organic Removal ◽  
Sludge Concentration

A high strength industrial wastewater was treated using a pilot scale submerged membrane bioreactor (MBR) at a sludge retention time (SRT) of 200 d. The MBR was operated at a high sludge concentration of 20 g/L and a low F/M ratio of 0.11 during 300 d of operation. It was found that the MBR could achieve COD and TOC overall removal efficiencies at more than 99 and 98% TN removal. The turbidity of the permeate was consistently in the range of 0.123 to 0.136 NTU and colour254 absorbance readings varied from 0.0912 to 0.0962 a.u. cm−1. The sludge concentration was inversely proportional to the hydraulic retention time (HRT), yielded excellent organic removal and extremely low sludge production (0.0016 kgVSS/day).

Immersed Membrane BioReactor (IMBR) for treatment of combined domestic and dairy wastewater in an isolated farm

2005 ◽  
Vol 51 (10) ◽  
pp. 327-334 ◽  
Author(s):  
A. Bick ◽  
J.G.P. Tuttle ◽  
S. Shandalov ◽  
G. Oron
Keyword(s):  
Membrane Bioreactor ◽  
Dairy Farm ◽  
Domestic Wastewater ◽  
High Strength ◽  
Dairy Farms ◽  
Pilot Scale ◽  
Dairy Wastewater ◽  
Transmembrane Pressure ◽  
Research Approach ◽  
Permeate Flux

In many regions dairy farms and milk processing industries discharge large quantities of their wastes to the surroundings posing serious environmental risks. This problem is mostly faced in small dairy farms and isolated communities lacking both central collection and conventional wastewater treatment systems. Dairy wastewater is characterized by high concentrations of organic matter, solids, nutrients, as well as fractions of dissolved inorganic pollutants, exceeding those levels considered typical for high strength domestic wastewaters. With the purpose of treating the combined dairy and domestic wastewater from a small dairy farm in the Negev Desert of Israel, the use of a recent emerging technology of Immersed Membrane BioReactor (IMBR) was evaluated over the course of 500 test hours, under a variety of wastewater feed quality conditions (during the test periods, the feed BOD5 ranged from 315 ppm up to 4,170 ppm). The overall performance of a pilot-scale Ultrafiltration (UF) IMBR process for a combined domestic and dairy wastewater was analyzed based on the Data Envelopment Analysis (DEA) method. The IMBR performance in terms of membrane performance (permeate flux, transmembrane pressure, and organic removal) and DEA model (Technical Efficiency) was acceptable. DEA is an empirically based methodology and the research approach has been found to be effective in the depiction and analysis for complex systems, where a large number of mutual interacting variables are involved.

Joint treatment of landfill leachate with municipal wastewater by submerged membrane bioreactor

2009 ◽  
Vol 60 (12) ◽  
pp. 3121-3127 ◽  
Author(s):  
Halil Hasar ◽  
Ubeyde Ipek ◽  
Cumali Kinaci
Keyword(s):  
Membrane Bioreactor ◽  
Municipal Wastewater ◽  
Domestic Wastewater ◽  
High Strength ◽  
Carbon And Nitrogen ◽  
Submerged Membrane Bioreactor ◽  
Treatment Processes ◽  
Phosphorus Source ◽  
Number Of Treatment ◽  
Joint Treatment

Young leachate was a high strength wastewater with regard to carbon and nitrogen matter, and up to now many researchers have focused on a number of treatment methods to treat the leachate. By using various treatment processes, joint treatment of leachate with domestic wastewater, resulted from same community, is one of the most significant methods because domestic wastewater has either larger mass or lower strength than leachate. In this study, a submerged membrane bioreactor (sMBR) was used for treatment of blending wastewater, including differential mixture ratios of domestic wastewater and leachate. In raw leachate, BOD5/COD was between 0.40 and 0.67 and total phosphorus was between 17 and 24 mg/l. After the leachate was blended with domestic wastewater in the ratios of 1/5–1/20, the influent COD decreased from 8,500–14,200 mg/l to 750–2,400 mg/l as ammonium decreased from 1,100–2,150 mg/l to 30–180 mg/l. The sMBR, which was aerated intermittently, accomplished both COD oxidation and nutrient removal at optimal conditions without adding the external phosphorus source, providing < 15 mg COD/l, <1.3 mg NH4+-N/l, and <2.0 mg P/l on average at solid retention times (SRT) higher than 10 days. Consequently, the results showed the mixture of leachate and domestic wastewater could be an acceptable alternative by means of membrane bioreactor technology.

scholarly journals Membrane fouling in a submerged membrane bioreactor treating high strength municipal wastewater

2009 ◽  
Vol 7 (1-3) ◽  
pp. 267-274 ◽  
Author(s):  
Ahmed H. Birima ◽  
Thamer A. Mohammed ◽  
Megat Johari Megat Mohd Noor ◽  
Suleyman A. Muyibi ◽  
Azni Idris ◽  
...  
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Municipal Wastewater ◽  
High Strength ◽  
Submerged Membrane Bioreactor

Effect of low temperature thermochemical pretreatment on sludge reduction potential of membrane bioreactor treating primary treated dairy wastewater

2011 ◽  
Vol 46 (4) ◽  
pp. 312-320 ◽  
Author(s):  
J. Rajesh Banu ◽  
S. Kaliappan ◽  
Adish Kumar ◽  
Ick Tae Yeom ◽  
Do Khac Uan
Keyword(s):  
Low Temperature ◽  
Membrane Bioreactor ◽  
Thermochemical Treatment ◽  
Dairy Wastewater ◽  
Transmembrane Pressure ◽  
Sludge Reduction ◽  
Thermochemical Pretreatment ◽  
Submerged Membrane Bioreactor ◽  
Sludge Digestion ◽  
Sludge Pretreatment

In this present study, an aerobic submerged membrane bioreactor (MBR) was used to study the effect of thermochemical pretreatment on the efficiency of sludge reduction. For this purpose, two MBRs were fabricated. Between the two MBRs, one acted as a control reactor (CMBR) and the other acted as an experimental reactor (EMBR). The MBRs were operated with a mixed liquor suspended solids (MLSS) concentration in the range of 6,800–7,200 mg/L for a period of 160 days. In the EMBR, part of the MLSS was withdrawn at a ratio of 1% of Q and was pretreated by low temperature thermochemical treatment. The sludge pretreatment was carried out at 60 °C and an alkali dosage in the range of 0.49 to 0.56 mg NaOH/mg MLSS. During the pretreatment, 42% of COD solubilization and 22% of SS reduction were observed. The pretreated sludge was returned to the reactor for further degradation where it was found to be 42% reduced. During the 160 days of reactor operation, both of the MBRs maintained a relatively constant transmembrane pressure. The sludge digestion does not have any impact on the COD removal efficiency of the reactor.

Internal versus external submerged membrane bioreactor configurations for dairy wastewater treatment

2013 ◽  
Vol 52 (16-18) ◽  
pp. 2920-2932 ◽  
Author(s):  
Laura Hamdan de Andrade ◽  
Flávia Daniele dos Santos Mendes ◽  
Jonathan Cawettiere Espindola ◽  
Míriam Cristina Santos Amaral
Keyword(s):  
Wastewater Treatment ◽  
Membrane Bioreactor ◽  
Dairy Wastewater ◽  
Submerged Membrane Bioreactor
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