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WEI YANG, P.E. - Senior R&D Engineer - SUEZ | LinkedIn

WEI YANG, P.E. - Senior R&D Engineer - SUEZ | LinkedIn

View WEI YANG, P.E.'s profile on LinkedIn, the world's largest professional community. WEI has 3 jobs listed on their profile. See the complete profile on LinkedIn and discover WEI'S .

Ultraviolet Disinfection Guidance Manual for the Final .

Ultraviolet Disinfection Guidance Manual for the Final .

The positioning of the UV lamp along the length of the sleeve can vary, depending on reactor configuration. Lamp sleeves absorb some UV light (Figure 2.18), which may influence dose delivery by the reactor. UV Disinfection Guidance Manual For the Final LT2ESWTR 2-25 November 2006

The bacterial community significantly promotes cast iron .

The bacterial community significantly promotes cast iron .

Cast iron coupons in the NON disinfection and UV disinfection reactors suffered more severe corrosion than did those in the NaClO disinfection reactor. The bacterial community significantly promoted cast iron corrosion, which was quantified for the first time in the practical reclaimed wastewater and found to account for at least 30.5% ± 9.7% .

ultraviolet disinfection handbook, the( .

ultraviolet disinfection handbook, the( .

2017-3-5 · ultraviolet disinfection handbook, the().pdf,The Ultraviolet Disinfection Handbook James R. Bolton, PhD Christine A. Cotton, PE The Authoritative Resource on Safe Water?? Advocacy Communications Conferences Education and Training

UV-disinfection Reactor Validation by Computational .

UV-disinfection Reactor Validation by Computational .

UV-disinfection Reactor Validation by Computational Fluid Dynamics and . reactors, each reactor equipped with 3, 4, 6 and 8 lumps respectively. It was founded that CFD model for UV reactor . and the theoretical exposure time. When mixing characteristic coefficientβ is introduced, RED .

UV Disinfection for Secondary Effluent and Reuse .

UV Disinfection for Secondary Effluent and Reuse .

2016-2-21 · 1.1.2 The ETV Program for Water Reuse and Secondary Effluent Disinfection This report documents the testing, data reduction and analysis in conformance with the recently developed test protocol, "Validation of UV Reactors for Application to the Disinfection of Treated Wastewaters" (2008, hereafter, referred to as the WW Protocol), which .

Effect of UV-LED fluence rate and reflection on .

Effect of UV-LED fluence rate and reflection on .

Ultraviolet light emitting diodes (UV-LEDs) are emerging as viable alternative to traditional UV lamps for water disinfection. UV-LEDs possess many advantages, some of which include robust configuration, long lifetime, and small size. With UV-LED being an incipient technology, there are also a number of knowledge gaps and challenges towards their widespread applications to water disinfection .

Ultraviolet Disinfection Guidance Manual - EPA

Ultraviolet Disinfection Guidance Manual - EPA

The UV reactor also includes additional hardware for controlling UV dose; typically comprised of (but not limited to): UV intensity sensors, UV transmittance monitors, ballasts, and control panels. UV Reactor Validation - a process by which a UV reactor's disinfection performance is determined relative to operating parameters that can be monitored.

Characterization of a continuous-flow reactor for solar UV .

Characterization of a continuous-flow reactor for solar UV .

2018-11-7 · Continuous-Flow Reactor for Solar UV Water Disinfection. Major Professor: Ernest R. . 2.1.1 Background The process of UV disinfection is designed to eliminate the ability of a microorganism to . systems) or the UVC range (for most commercial UV reactors). Consequently, little work

Drinking-Water Guidelines - Chapter 15: Treatment .

Drinking-Water Guidelines - Chapter 15: Treatment .

For UV disinfection, a parameter similar to C.t value provides an indication of disinfecting ability of the unit, but in this instance C is the UV dose (see section 15.5.5). Table 15.1 (Hoff 1986, in WHO 2004), which summarises C.t values that have been determined for a number of micro-organisms and a series of disinfectants, demonstrates this .

10.1016/S0168-1699(98)00028-3 | DeepDyve

10.1016/S0168-1699(98)00028-3 | DeepDyve

Studies on UV disinfection that are typically reported in the literature do not use particle trajectory information during transport through the UV reactor in order to establish disinfection efficacy ( Qualls et al. 1985, Scheible 1987, Emerick 1992, Darby et al. 1993, Loge et al. 1996 ).

ultraviolet disinfection handbook, the( .

ultraviolet disinfection handbook, the( .

2017-3-5 · ultraviolet disinfection handbook, the().pdf,The Ultraviolet Disinfection Handbook James R. Bolton, PhD Christine A. Cotton, PE The Authoritative Resource on Safe Water?? Advocacy Communications Conferences Education and Training

Enviolet® UV-Reactors

Enviolet® UV-Reactors

Our Enviolet®-UV-Reactors can be constructed as sub-units for projects overseas to save money and time during the final construction at the client's site. To do this, we divide the sub-units into compact parts which balance the advantages of preconstruction and transport.

Versatile Test Reactor - energy .. Info | About | What's

Versatile Test Reactor - energy .. Info | About | What's

was selected by Batelle to support the DOE decision making on the Versatile Test Reactor VTR program. In February 2019, DOE expected to complete the initial thr

Computational fluid dynamics modeling alternatives for UV .

Computational fluid dynamics modeling alternatives for UV .

Design and optimization of UV/H 2 O 2 systems include both system configuration (such as reactor design, inlet and outlet hydraulics, number of lamps, and lamp orientation) and chemical kinetics (namely, reaction mechanisms and kinetic rate constants). Initial numerical techniques that have been developed to understand the performance of these systems are based on kinetic models only (i.e .

53714E01 IUVA VOL6.QXP 1/12/2005 12:00 PM . - UV .

53714E01 IUVA VOL6.QXP 1/12/2005 12:00 PM . - UV .

2017-6-23 · already designing or installing UV facilities. BACKGROUND Masschelein (2002) reports that according to his research, the earliest use of UV disinfection in the United States was in 1916 in Henderson, Kentucky. Jepson (1973) states that by 1928, four utilities were using UV light for disinfection. However, they further note that by the late .

Numerical verification for a new type of UV disinfection .

Numerical verification for a new type of UV disinfection .

2020-5-19 · 1. Introduction. The UV disinfection reactors are used for many water disinfection applications .The principle of this method is that DNA molecules mutate after UV irradiation, which affect the synthesis of microbial proteins and enzymes, and eventually lead to the cell death .Matafonova and Hijnen et al., apply this technique to the treatment of drinking water, which has a significant effect .

US7097764B2 - Apparatus for irradiating fluids with UV .

US7097764B2 - Apparatus for irradiating fluids with UV .

An apparatus for irradiating fluids with UV including a reactor vessel ( 10 ) having a fluid inleT ( 12 ), a fluid outlet ( 14 ) and a reaction chamber ( 16 ); a plurality of UV lamps ( 18 a–d ) extending across the reaction chamber ( 16 ) and substantially perpendicularly to an axis (A) extending between the fluid inlet ( 12 ) and the fluid outlet ( 14 ); an upper fluid diverter ( 22 ) and .

Validation Protocol for Performance Testing and Scaling .

Validation Protocol for Performance Testing and Scaling .

2017-10-17 · UV reactor. Figure 5 below outlines the various factors that impact the performance of the UV system. Bioassay Protocols The non-ideal behavior of real UV reactors and the complexity of their designs prohibits reliance solely on theoretical calculations to reliably predict the UV dose delivered by the reactor.

Designing for UV Dose Accuracy through Reactor Validation .

Designing for UV Dose Accuracy through Reactor Validation .

2018-6-11 · UVDIS Requires Validation for Sizing UV Reactors. HydroQual Inc. & Trojan Technologies Inc.. WEFTEC, 2005. Hartfelder, J.. Ultraviolet Light Process Model Evaluation. Brown and Caldwell, 2002. Youngberg, C., Marko, K.. UV Disinfection for a Real-World Effluent. Water Environment Federation, March 2008.

Theoretical Background of UV-Disinfection: a.c.k. aqua .

Theoretical Background of UV-Disinfection: a.c.k. aqua .

Up-front to technical description of UV-Reactors for UV-Disinfection, the physical relations of UV-disinfection shall be explained briefly: During a broad R&D project of the German government a high number of germs (Bacteria, Vires, Yeast etcetera) and their deactivation by UV-light of the wave length 254 nm (main emission of a Mercury low presser lamp) was investigated.

Water Disinfection - Massive UV Source and Exposure .

Water Disinfection - Massive UV Source and Exposure .

2014-6-16 · Friends, UV source is well known to kill the Pathogen in water and other food items. Now challenges are in generating high UV flux and to find a proper exposure delivery system to reach the entire volume as UV does not penetrate depth of water and .

UV-reactors for UV- disinfection: a.c.k. aqua concept

UV-reactors for UV- disinfection: a.c.k. aqua concept

Description of theoretical background of UV-disinfection (link). The MicroUV® reactor series are constructed, adapted to the spectral properties of the fluid (water). So the client receives a system made for his individual application without generating additional costs.

Ultraviolet disinfection - Sizing principles - Degremont®

Ultraviolet disinfection - Sizing principles - Degremont®

A UV reactor is characterised by its head loss and by the dose that it is likely to deliver under a given flow rate.. The following head loss must be accounted for : head loss through all the modules or reactors as measured during hydraulics testing; head loss created by the level control for open systems (fixed or .

Trojan Scaling BWTS Systems Employing Filtration and UV

Trojan Scaling BWTS Systems Employing Filtration and UV

UV disinfection of water: the need for UV reactor validation. Water Science and Technology: Water Supply Vol 3 No 4 pp 293–300. Petri, B.M. and Olson, D.A. (2001). Bioassay-validated numerical models for UV reactor design and scale-up. Proc. the First Int. Congress on Ultraviolet Tech., Washington DC., USA, 14–16 June.

The Approach and Value of a Science-Based UV Design

The Approach and Value of a Science-Based UV Design

2016-8-18 · The Approach and Value of a Science-Based UV Design – A Case Study in Monroe Washington . John Lande3, Donovan Sheppard3 Nitin Goel1*, Andrew Salveson1, Karl Hadler2, Mike Zappone2. 1Carollo Engineers, P.C., 2700 Ygnacio Valley .

ABSTRACT JENNY, RICHARD MATTHEW. Numerical .

ABSTRACT JENNY, RICHARD MATTHEW. Numerical .

2016-8-30 · UV-LED reactor, particularly with regards to reactor shape, size, spatial orientation of light, and germicidal emission wavelength. Anticipating that LEDs are the future of UV disinfection, new methods are needed for designing such reactors. In the design of UV-LED-

ultraviolet disinfection handbook, the( .

ultraviolet disinfection handbook, the( .

2017-3-5 · ultraviolet disinfection handbook, the().pdf,The Ultraviolet Disinfection Handbook James R. Bolton, PhD Christine A. Cotton, PE The Authoritative Resource on Safe Water?? Advocacy Communications Conferences Education and Training

International Ultraviolet Association Inc - 2020 Americas .

International Ultraviolet Association Inc - 2020 Americas .

Yuri Lawryshyn, University of Toronto Authors: NA 8:30 AM - 9:00 AM. The combined variable (CV), defined as the ratio of the power output percent (based on sensor readings) divided by the flow rate and organism sensitivity, has been shown to provide a strong linear relationship between it and the log inactivation of a given UV reactor and has gained acceptance in estimating UV reactor .

WAVELENGTH-SPECIFIC EFFECTS OF ULTRAVIOLET LIGHT .

WAVELENGTH-SPECIFIC EFFECTS OF ULTRAVIOLET LIGHT .

2019-11-14 · This dissertation entitled: Wavelength-Specific Effects of Ultraviolet Light on Microorganisms and Viruses for Improving Water Disinfection written by Sara Elizabeth Beck has been