were checked by monitoring fouling resistances. ... Increase in the air flow rate did not always guarantee the reduction of fouling resistance, indicating ... The total fouling resistance (Rc+Rf) without grid installation (i.e., control) was 2.131012 m-1 , whereas
the intrinsic membrane resistance and fouling resistance) is not affected by temperature. ... When the same amount of foulants were accumulated on the membrane, inorganic fouling resistance with ... kaolin was constant regardless of temperature change while organic fouling resistance with humic acid
As shown in the existing literature the fouling resistance rate was increased within sludge with the ... However, in the lab-scale test using the synthetic wastewater, the fouling resistance increased with ... In this paper, we investigate the characteristics of membrane fouling caused by water temperature in
Total resistance (RT) and internal fouling resistance (Rf) increased in the membrane filtration process ... A resistance-in-series-model was applied for the analysis of membrane fouling. ... Internal fouling resistance, which was not recovered by physical cleaning, was more than 70% of the total
The membrane fouling decreased as the current density and contact time increased, Total fouling resistances ... in certain amounts (in this study, 10% of fouling reduction) is always constant. ... A kinetic approach for the fouling reduction rate (Rt / R0) was carried out and the equation i0.46t=7.0
, modification of membrane’s surface is one of the methods to improve fouling-resistance. ... resistance. ... However, membrane fouling phenomenon, which is one of the major issue during operation, deteriorates
So, the AF coating continuously resists biofouling threat posed by fouling organisms since utilized the ... These results show rough surface has a better antifouling performance by the mechanically anti-foul on ... A fouling test was carried out using Escherichia coli as bacteria and Ntizschia sp. and Navicula annexa
pretreatment process in the wastewater reuse field with the improvement of membrane properties and resistance ... However, despite of the development of membrane production and process technologies, fouling still remains ... The reversible and irreversible resistances in applying the hybrid process consisting of ozone oxidation
Transient behavior of fouling resistance was observed with a laboratory-scaled, submerged microfiltration ... Fouling mitigation efficiency with inorganic silica particles caused by aeration was reduced significantly
The blending method is an effective method for improving the fouling resistance of PSF membranes. sPES ... PSF membrane is considered as hydrophobic membrane that easily fouled during membrane operation process
Fouling organisms attached to a ship not only greatly increase the resistance of the ship as they grow ... discussing the removal of biofouling and evaluation of cleaning performance to prevent the migration of hull-fouling
이 경우는 fouling factor를 고려하여 U값을 도출한다. ... Thermal resistance의 concept을 도입한다. 1-1~3-1식을 1~3식을 이용해 더하여 정리하고, A를 D로 나타내면 다음과 같다. ... 우선 실제의 경우는 Wall의 resistance를 고려해야한다. 벽 내부에 residue의 absorption이나 corrosion이 존재한다면 저항은 커질 것이다.
The dormant forms of which of the following genera are the most resistant to environmental extremes? ... A friend who has lakefront property and cherishes her lush green lawn complains of the green foul-smelling
Polytetrafluoroethylene (PTFE) membrane has high resistance to chlorine, which is a great advantages ... dynamic contact angle became greater after cleaning, which indicates changes in characteristics of fouling
오염계수는 오염에 의해 야기된 열저항의 척도로, , fouling factor로 나타낸다. 열전달 표면에서의 침전물 층은 추가적인 저항이 되고, 열전달률을 감소시킨다. ... (4)를 함께 적용하면, (5) 식을 얻을 수 있고, 이로부터 원통 벽에서 r에 대한 열 저항은 (6) 이고, double pipe system에서 contact surface resistance를
to surface fouling due to weak adsorption. ... potential window in aqueous and non-aqueous electrolytes, very low and stable background current and high resistance
And we confirmed good fouling resistance in pilot test. ... In this study, we tried to solve membrane fouling with membranes made by fine nano-particle in MBR process
The primary objective of this study is to increase the extent of water flux and fouling resistance of ... The hydrophilic effect of aminoalkyl group of APMDES on the permeability and fouling resistance of the ... The modified NF membranes showed significantly enhanced water flux and fouling resistance without a decrease