Experimental study of membrane filtration for the recycling of synthetic waterbased metalworking fluids

1991 ◽  
Vol 24 (6) ◽  
pp. 389-395 ◽  
Author(s):  
S.M. Mahdi ◽  
R.O. Sköld
Keyword(s):  
Experimental Study ◽  
Membrane Filtration ◽  
Metalworking Fluids

Experimental study on filtering papermaking black liquor by dynamic blade crossflow membrane

2020 ◽  
Vol 35 (3) ◽  
pp. 464-470 ◽  
Author(s):  
Wenjie Zhao ◽  
Junfei Wu ◽  
Fushan Chen
Keyword(s):  
Molecular Weight ◽  
Experimental Study ◽  
Environmental Pollution ◽  
Rotational Speed ◽  
Membrane Filtration ◽  
Black Liquor ◽  
Cross Flow ◽  
Transmembrane Pressure ◽  
Filtration Equipment ◽  
Fundamental Reason

AbstractThe fundamental reason for the environmental pollution caused by the papermaking industry is the inadequate treatment of the black liquor. How to dispose of the lignin macromolecules, which is the main pollutants in the black liquor, is the key to addressing the environmental pollution. At present, cross-flow membrane filtration is one of the effective ways to retain and recycle lignin macromolecules in black liquor. The paper proposes the adoption of a dynamic blade cross-flow membrane filtration equipment provided by German BOKELA company to treat papermaking black liquor. The experiment shows that when the black liquor is treated with dynamic blade rotation cross-flow, the membrane with a molecular weight cut-off of nanofiltration (NP010) delivers the best retaining effect, with 28 % more lignin in black liquor than that in untreated black liquor. Meanwhile, when the blade rotational speed reaches 300 rpm and the transmembrane pressure is 0.5 or 2 bar, the flux of black liquor through nanofiltration NP010 is relatively desirable.

An Experimental Investigation of the Effects of Microencapsulated Phase Change Material in Grinding Fluid Performance

1999 ◽  
Author(s):  
Jae M. Lee ◽  
Chi-Hung Shen
Keyword(s):  
Experimental Study ◽  
Phase Change ◽  
Phase Change Material ◽  
Metalworking Fluids ◽  
Wheel Wear ◽  
Significant Deterioration ◽  
The Third ◽  
Microencapsulated Phase Change Material ◽  
Change Material ◽  
High Shearing

Abstract This report documents an experimental study in the evaluation of the grinding performance of three metalworking fluids containing Microencapsulated Phase Change Material (MPCM) slurry. The results showed that wheel wear and surface finish were improved substantially in two cases while the performance became worse for the third fluid. There was significant deterioration of the microparticles because of the high shearing action of the circulating pump.

Experimental study of filterability behavior of model extracellular polymeric substance solutions in dead-end membrane filtration

Desalination ◽  
2009 ◽  
Vol 249 (3) ◽  
pp. 1380-1384 ◽  
Author(s):  
Zhan Wang ◽  
Yin Song ◽  
Mei Liu ◽  
Jinmiao Yao ◽  
Yuanyuan Wang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Extracellular Polymeric Substance ◽  
Membrane Filtration ◽  
Polymeric Substance ◽  
Dead End

Experimental study of mist generated from metalworking fluids emulsions

2013 ◽  
Vol 61 ◽  
pp. 70-80 ◽  
Author(s):  
Dunja S. Sokolović ◽  
Wilhelm Höflinger ◽  
Radmila M. Šečerov Sokolović ◽  
Slobodan M. Sokolović ◽  
Dušan Sakulski
Keyword(s):  
Experimental Study ◽  
Metalworking Fluids

Ingredient-Wise Study of Flux Characteristics in the Ceramic Membrane Filtration of Uncontaminated Synthetic Metalworking Fluids, Part 1: Experimental Investigation of Flux Decline

1999 ◽  
Vol 122 (4) ◽  
pp. 739-745 ◽  
Author(s):  
Steven J. Skerlos ◽  
N. Rajagopalan ◽  
Richard E. DeVor ◽  
Shiv G. Kapoor ◽  
V. Don Angspatt
Keyword(s):  
Experimental Investigation ◽  
Machine Tool ◽  
Health Risks ◽  
Membrane Filtration ◽  
Ceramic Membrane ◽  
Residual Effects ◽  
Metalworking Fluids ◽  
Membrane Filters ◽  
Flux Decline ◽  
Productivity Decline

Membrane Filtration (MF) technology can remove microbes, particulates, and tramp oils that contaminate metalworking fluids (MWFs). Consequently MF has the potential to reduce health risks and extend MWF life in the machine tool industry. This research assesses the productivity of ceramic membrane filters during filtration of synthetic MWFs and examines the contribution of MWF chemical ingredients to productivity decline. The majority of the chemistry comprising typical synthetic MWFs has negligible impact on MF productivity. However, specialty additives such as lubricants, defoamers, and biocides can significantly reduce MF productivity. Results show that slight variations in formulation can dominate the productivity of the process. Specialty additives can also impart residual effects on the membrane that adversely impact productivity in subsequent applications of the ceramic membrane. [S1087-1357(00)01103-5]

scholarly journals Ingredient-Wise Study of Flux Characteristics in the Ceramic Membrane Filtration of Uncontaminated Synthetic Metalworking Fluids, Part 2: Analysis of Underlying Mechanisms

1999 ◽  
Vol 122 (4) ◽  
pp. 746-752 ◽  
Author(s):  
Steven J. Skerlos ◽  
N. Rajagopalan ◽  
Richard E. DeVor ◽  
Shiv G. Kapoor ◽  
V. Don Angspatt
Keyword(s):  
Membrane Filtration ◽  
Ceramic Membrane ◽  
Membrane Surface ◽  
Environmental Scanning Electron Microscopy ◽  
Lubricant Additive ◽  
Metalworking Fluids ◽  
Environmental Scanning ◽  
Flux Decline ◽  
Cake Layer ◽  
Underlying Mechanisms

Part 2 of this paper reveals the predominant mechanism of flux decline during microfiltration of the synthetic MWF described in Part 1 of this paper. An analysis of flux data obtained during the experimental investigation suggests that adsorptive interactions occur at the membrane surface. Field Emission Environmental Scanning Electron Microscopy (FE-ESEM) images of aluminum oxide membranes after MWF microfiltration illustrate that adsorption leads to a reduction in pore diameter that serves to reduce flux. The majority of the adsorption is accounted for by a single lubricant additive in the MWF formulation. FE-ESEM images also reveal that the mechanism of flux decline for the defoamer varies depending on the presence of lubricant additive in solution. In the absence of lubricant additive, the defoamer forms a cake layer at the membrane surface. In the presence of the lubricant additive, the defoamer adsorbs to the surface of the membrane with the lubricant additive to constrict pores. In contrast to the lubricant additive and defoamer, base fluid flux decline observed after specialty additive exposure cannot be accounted for by adsorption leading to pore constriction. [S1087-1357(00)01203-X]

scholarly journals Effectiveness of Membrane Filtration to Improve Drinking Water: A Quasi-Experimental Study from Rural Southern India

2016 ◽  
Vol 95 (5) ◽  
pp. 1192-1200 ◽  
Author(s):  
Mark Rohit Francis ◽  
Rajiv Sarkar ◽  
Sheela Roy ◽  
Shabbar Jaffar ◽  
Venkata Raghava Mohan ◽  
...  
Keyword(s):  
Experimental Study ◽  
Drinking Water ◽  
Membrane Filtration ◽  
Southern India ◽  
Quasi Experimental
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