Powdered activated carbon and membrane bioreactors (MBRPAC) for tannery wastewater treatment: long term effect on biological and filtration process performances

Desalination ◽  
2007 ◽  
Vol 207 (1-3) ◽  
pp. 349-360 ◽  
Author(s):  
G. Munz ◽  
R. Gori ◽  
G. Mori ◽  
C. Lubello
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
Membrane Bioreactors ◽  
Powdered Activated Carbon ◽  
Term Effect ◽  
Tannery Wastewater ◽  
Filtration Process ◽  
Long Term Effect

Effect of low dosages of powdered activated carbon on membrane bioreactor performance

2012 ◽  
Vol 65 (5) ◽  
pp. 954-961 ◽  
Author(s):  
Maxime Remy ◽  
Hardy Temmink ◽  
Wim Rulkens
Keyword(s):  
Activated Carbon ◽  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Membrane Bioreactors ◽  
Powdered Activated Carbon ◽  
Filtration Time ◽  
Sludge Flocs ◽  
Operational Costs ◽  
Long Term Effect

Previous research has demonstrated that powdered activated carbon (PAC), when applied at very low dosages and long SRTs, reduces membrane fouling in membrane bioreactors (MBRs). This effect was related to the formation of stronger sludge flocs, which are less sensitive to shear. In this contribution the long-term effect of PAC addition was studied by running two parallel MBRs on sewage. To one of these, PAC was dosed and a lower fouling tendency of the sludge was verified, with a 70% longer sustainable filtration time. Low PAC dosages showed additional advantages with regard to oxygen transfer and dewaterability, which may provide savings on operational costs.

scholarly journals Reuse of effluent discharged from tannery wastewater treatment plants by powdered activated carbon and ultrafiltration combined reverse osmosis system

2016 ◽  
Vol 7 (1) ◽  
pp. 97-102 ◽  
Author(s):  
Am Jang ◽  
Jong-Tae Jung ◽  
Hayoung Kang ◽  
Hyung-Soo Kim ◽  
Jong-Oh Kim
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Activated Carbon ◽  
Reverse Osmosis ◽  
Wastewater Treatment Plants ◽  
Oxygen Demand ◽  
Powdered Activated Carbon ◽  
Tannery Wastewater ◽  
Combined System ◽  
Treatment Processes

We evaluate the applicability of a reverse osmosis (RO) system that combines powdered activated carbon (PAC) and ultrafiltration (UF) to treat the effluent discharged from tannery wastewater treatment plants. Conventional treatment processes such as neutralization, clariflocculation, and biological processes are used to clean the effluent before feeding to the PAC and UF combined RO system. The efficiency of the combined system was evaluated using the chemical oxygen demand Mn (CODMn), color, pH, turbidity, total nitrogen, total phosphate, and conductivity. The PAC was effective in greatly reducing the CODMn and color. The turbidity and silt density index of the UF permeate satisfied the water quality indices required for the RO feed. The RO system was constantly maintained at approximately 75% RO recovery, and the RO permeate satisfied the water quality requirements for reusing the processed water. Therefore, the PAC-UF combined RO system can be used to process effluent discharged from tannery wastewater treatment plants for reuse.

Long-Term Effect of Seawater on Sulfate Reduction in Wastewater Treatment

2015 ◽  
Vol 32 (7) ◽  
pp. 622-630 ◽  
Author(s):  
Tessa P.H. van den Brand ◽  
Kees Roest ◽  
Guang-Hao Chen ◽  
Damir Brdjanovic ◽  
Mark C.M. van Loosdrecht
Keyword(s):  
Wastewater Treatment ◽  
Sulfate Reduction ◽  
Term Effect ◽  
Long Term Effect

A long-term effect of subliminally presented words

2010 ◽  
Author(s):  
Andreas T. Breuer ◽  
Michael E. J. Masson ◽  
Glen E. Bodner
Keyword(s):  
Term Effect ◽  
Long Term Effect
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