نتایج جستجو برای: backwash effects

تعداد نتایج: 1544431  

Journal: :Processes 2021

To understand the long-term stability of nitrifying granules in a membrane bioreactor (GMBR), module was submerged an airlift reactor to eliminate hydraulic selection pressure that believed be driving force aerobic granulation. The monitoring results showed structure could remain stable for 305 days GMBR without pressure; however, majority granule actually inactive due mass diffusion limitation...

Journal: :Journal of Crohn's & colitis 2013
Udayakumar Navaneethan Preethi G K Venkatesh Maria Choudhary Bo Shen Ravi P Kiran

BACKGROUND AND AIM Patients with primary sclerosing cholangitis (PSC) and elevated immunoglobulin (Ig) G4 have been shown to have more severe disease with a shorter time to orthotopic liver transplantation (OLT). The aim of the study was to investigate the clinical outcomes of PSC and UC in patients with elevated serum IgG4. METHODS We analyzed data from 50 patients with PSC and known serum l...

Journal: :Journal Of Socioeconomics and Development 2021

Inequality still becomes popular issue in the establishment of developing countries. Aside from income inequality, human development inequality is considered as an interesting topic for further study, terms resuming solution. The purpose this study specific identifying gap between origin and new regencies Eastern Indonesia well determinant. This uses a positivist perspective with deductive appr...

Journal: :Aerospace 2022

Coaxial rotors are utilized in multirotor aerial vehicles for the added thrust compared to independent while keeping similar area footprints; however, performance losses should be considered. This experimental study analyzes effects of varying motor duty cycle and propeller pitch values motor-propeller systems with two four coaxial rotors. The results demonstrate that a two-rotor system, lessen...

Journal: :Makara journal of technology 2023

Polymer-enhanced ultrafiltration has gained increasing attention as a selective separation process to remove small solutes, such metal ions, from water or wastewater. Hexavalent chromium Cr(VI) is one of the ions in wastewater that received considerable because its toxicity. Chitosan was used this study polymer bind enhance removal by ultrafiltration. The effects chitosan-to-Cr(VI) ratio on rej...

2004
William J. Golz Kelly A. Rusch Ronald F. Malone W. J. Golz

Maintaining effective solids capture and nitrification can determine the success or failure of a recirculating aquaculture system (RAS). Although solids capture and nitrification are often performed sequentially, they are united in floating-bead filters. The use of bead filters in a RAS began at the Dworshak National Fish Hatchery (Cooley 1979). More recently, a bead filter was developed and te...

Journal: :International Journal of Engineering Research and Applications 2017

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