F. R. Espinoza-Quiñones Articles

Der UIP1500hd – Hochleistungs-Ultraschall für viele Anwendungen

Der UIP1500hd (20kHz, 1500W), das neueste Gerät unter den Industrie-Ultraschallprozessoren der Firma Hielscher Ultrasonics, bietet Hochleistungs-Ultraschall gepaart mit größter Flexibilität und Robustheit. Dieser Ultraschallprozessor wurde für den Einsatz unter schwierigen Bedingungen und den Hochleistungsbetrieb für 24 Stunden am Tag und 7 Tage in der Woche ...

Jul. 14, 2010

By Hielscher Ultrasonics GmbH

Rectangular tank surface aerators: scale up criteria and energy conservation

Surface aeration experiments were conducted in two types of rectangular tanks of aspect ratios i.e., length to width ratio (L/W) of 1.5 and 2 and developed simulation equations to correlate the oxygen transfer coefficient, k and power number, P0 with a parameter governing theoretical power per unit volume X. The parameter X is defined as equal to F4/3R1/3, where F and R are impellers’ Froude and ...

Oct. 1, 2006

By Center for Environment and Energy Research & Studies (CEERS)

Umweltclaims – Im Spannungsfeld zwischen Nachhaltigkeit und gesetzlicher Compliance

Im Jahr 2018 fielen in Deutschland 18,9 Mio. Tonnen an Verpackungsabfällen an, davon ca. 47 % bei privaten Verbrauchern (Quelle: Umweltbundesamt). Nicht nur für Produkte sondern auch für Verpackungen rücken die Themen Nachhaltigkeit und Umweltauswirkungen damit mehr und mehr in den Verbraucherfokus. Vor allem für Produktverpackungen sind in den letzten Jahren ...

Dec. 15, 2020

By NovaLoop GmbH

GC-MS and LC-MS-MS sample preparation - Case Study

Customer: Bundesamt für Seeschifffahrt und Hydrographie (BSH) The Bundesamt für Seeschifffahrt und Hydrographie (BSH) is an authority that forms part of the German Federal Ministry of Transport, Building and Urban Development with offices in Hamburg and Rostock. It undertakes a complex range of tasks as an important maritime service provider in Germany. Application: Organic ...

Nov. 26, 2019

By BÜCHI Labortechnik AG

AGRETO AgriCounter Vibration - Betriebsstundenzähler

Der clevere AgriCounter Vibration hat einen integrierten 3-Achs-Sensor zur getrennten Erfassung von Arbeits- und Transportzeit. Intelligenter Betriebsstundenzähler für Maschinen und Geräte • Aktivierung durch Bewegung, Vibration oder Lageänderung • zählt Arbeitszeit und Wegzeit getrennt • absolut manipulationssicher • ideal für ...

Dec. 20, 2019

By Agreto Electronics GmbH

Reducing Chilean pigeon presence with bird deterrent at Agricola Calandria - Case Study

Location: Molina, Región del Maule, Chile Application context: Blueberry farm Problem definition: Birds damaging blueberry crops Bird species: Eared dove (Columbidae) Time of the year with bird problems: October – January Time of the day with bird problems: From dusk till dawn Number of systems: 1 x Agrilaser Autonomic 500 with solar panel In use since: November 2018 Laser ...

Sep. 18, 2019

By Bird Control Group

Model R OXIGEST - Petroleum Refinery - Case Study

A large, Midwestern oil refinery installed two identical, 110’ diameter S&L Model R OXIGEST® treatment systems to solve a groundwater treatment problem on-site. Each plant incorporates aeration, clarification, and effluent holding, treating peak flows of 7.2 MGD combined; 4.3 MGD in each plant. The plant operates with a Food-to-Mass (F/M) typical of extended aeration conditions ...

Sep. 7, 2019

By Smith & Loveless Inc.

Development of empirical correlations for predicting formation of gas hydrate

Gas hydrates are a recurring problem in the oil industry where they plug production and transmission lines resulting into flow impairment. In order to avoid costly losses due to the formation of these hydrates, several methods which include thermodynamic modelling and empirical correlations can be employed to predict the conditions for hydrate formation. This study employed Statistical Analysis ...

Mar. 4, 2009

By Inderscience Publishers

Screen Filtration Technology as Applied to Pretreatment of Reverse Osmosis and Ultra-Filtration Systems

Summary New developments in the manufacturing technology of stainless steel weavewire screens enable mechanical style self-cleaning filters to be utilized as the primary pretreatment device for R-O and U-F systems. These systems are more cost effective and feature lower O&M requirements, than multimedia ...

Jan. 1, 1998

By Amiad Water Systems Ltd.

Revue Pollution Atmosphérique. Climat, Santé, Société. N°206 Avril - Juin 2010

Modélisation de la pollution particulaire (PM10) dans la région de l"étang de Berre. Détermination des zones homogènes de pollution. BROCHETON F, MESBAH B, POULET D, et al. - Lire le résumé Politiques et pratiques de la santé environnementale à travers l"exemple de la commune de Meyzieu (Département du Rhône). ...

Jul. 1, 2010

By Air Pollution Prevention Association (APPA)

Testing an application of a biotic ligand model to predict acute toxicity of metal mixtures to rainbow trout

We tested the applicability of a previously developed biotic ligand model (BLM) to predict acute toxicity of single metals and metal mixtures (cadmium, lead, and zinc) to rainbow trout fry (Oncorhynchus mykiss) from a single available data set. The biotic ligand model used in the present study hypothesizes that metals inhibit an essential cation (calcium) and organisms die due to its ...

Oct. 16, 2014

By John Wiley & Sons, Ltd.

Engineering: Custom temperature control in complex structures - Case Study

The Challenge:Control the temperature in each cabin of the world’s largest observation wheel: CaesarsEntertainment’s High Roller observation wheel at the Linq. The High Roller is 550 ft. tall and features 28 cabins, which hold 40 guests apiece. It is expected to operate 18 hours per day, 365 days a year. However, designing the complex HVAC/R systems used for temperature control was ...

Nov. 10, 2020

By Air Innovations

Project - WWTP Cologne-Stammheim, Germany

Plant: wwtp Cologne-Stammheim, Germany Contractor: Gesellschaft für Wassertechnik und Apparatebau GmbH & Co. KG Type of plant: Municipal Wastewater Start-up: 2011/2014 Application: Mixing & Aeration in high loaded aeration step Wastewater with high sand concentration -preventing sand sedimentation Scope of supply: 2 Cyberpitch - Mixers 4 Hyperclassic - Mixers 20 ...

Jan. 25, 2021

By INVENT Umwelt- und Verfahrenstechnik AG

Sensitivity Comparison of the Conventional Acute Daphnia magna Immobilization Test with the Daphtoxkit FTM Microbiotest for Household Products

Abstract : A comparative study has been made of the sensitivity of the acute Daphnia magna immobilization test and the Daphtoxkit F™ magna microbiotest for 30 household products of different categories (cleaning and degreasing products used in the industry, wash products for large laundries, household cleaning products and products for hygienic and personal care). The study revealed that ...

Jan. 7, 2020

By Microbiotests Inc.

Prevalence and genetic diversity of bartonella species isolated from wild rodents in Japan

Here, we describe for the first time the prevalence and genetic properties of Bartonella organisms in wild rodents in Japan. We captured 685 wild rodents throughout Japan (in 12 prefectures) and successfully isolated Bartonella organisms from 176 of the 685 rodents (isolation rate, 25.7%). Those Bartonella isolates were all obtained from the rodents captured in suburban areas (rate, 51.8%), but ...

Aug. 1, 2008

By American Society for Microbiology (ASM)

Presumptive Remedies

A presumptive remedy is a technology that EPA believes, based upon its past experience, generally will be the most appropriate remedy for a specified type of site. EPA is establishing presumptive remedies to accelerate site-specific analysis of remedies by focusing the feasibility study efforts. EPA expects that a presumptive remedy, when available, will be used for all CERCLA sites except under ...

Jan. 1, 1997

By Federal Remediation Technologies Roundtable

Concentration and solvent recovery of environmental samples in dichloromethane

Environmental samples are usually extracted with an organic solvent which is then concentrated prior to final analysis. In this short note, initial conditions and evaporation settings for the parallel concentration of samples dissolved in dichloromethane (DCM) having different starting volumes are presented. These settings have been optimized for high analyte and high solvent recoveries. ...

Feb. 2, 2015

By BÜCHI Labortechnik AG

Pressure System For PPR And PPR-CT Polypropylene Pipes

PPR and PPR-CT pipes are manufactured on dimensions between 16 mm up to 355 mm, and on IPS 80 scale between 1/2 and 6 inches. The minimum hydrostatic pressure is 160 PSI at 73ºF (1105 kPa at 23ºC) and 100 PSI at 180ºF (690 kPa at, 82ºC) for installations, but pipe sizes can be used at different higher or lower pressures. Consult the PPR and PPR-CT pipe manufacturer's data ...

Jul. 1, 2020

By SupraTherm

Effective Sticky Control Thanks to New Polymers

We kindly encourage you to read article about "Effective Sticky Control Thanks to New Polymers - Removal of sticky contaminants in the papermaking process" by Dr.-Ing. Dominik Stumm, Technical Manager Paper, and Ralf Winkel, Technical Director Paper, from Kurita Europe. This article was published in the November edition of Professional Papermaking (PPM) and can be downloaded here: ...

Dec. 21, 2017

By Kurita

Optimization of photocatalytic degradation of real textile dye house wastewater by response surface methodology

This study evaluates the advanced oxidation process for decolorization of real textile dyeing wastewater containing azo and disperse dye by TiO2 and UV radiation. Among effective parameters on the photocatalytic process, effects of three operational parameters (TiO2 concentration, initial pH and aeration flow rate) were examined with response surface methodology. The F-value (136.75) and ...

May 23, 2016

By IWA Publishing

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