The document discusses upgrades to the Marshalltown Wastewater Treatment Plant in Iowa to meet a phosphorus limit of 1.0 mg/L. It proposes modifying the existing sequencing batch reactor (SBR) process to incorporate biological phosphorus removal (BPR) through additional treatment stages. Modeling of the Virginia Initiative Plant (VIP) and Anaerobic-Anoxic-Oxic (A2/O) processes for the mechanical portion of the plant show they can achieve 40-60% phosphorus removal and meet permit limits.
Presentation Outline for Expanding Your High Performance Liquid Chromatography and Ultra High Performance Liquid Chromatography Capabilities with Universal Detection-Shedding Light on Non-Chromophore Compounds:
• Introduction to Charged Aerosol Detection
• How Charged Aerosol Technology Works
• Comparison with Evaporative Light Scattering Detectors
(ELSD)
• Examples of Applications
• Inverse Gradient Solution for Uniform Response
Haloacetic acids (HAAs) are known carcinogens that may occur as disinfection byproducts in drinking water. Traditionally these compounds were analyzed using helium (He) carrier gas, the cost of which has increased tremendously over the years. In this application, we explored using alternative hydrogen (H2) carrier gas to determine HAA concentrations according to EPA method 552.3.
Over the past decade, the number of mAb candidates entering the clinical pipeline has grown significantly. In addition, the number of ADCs that use mAb specificity to carry drug payloads to target sites has increased. As a result, analytical characterization is in high demand.
This webinar discusses new innovations in sample preparation, column technology, UHPLC, and high resolution mass spectroscopy (HRMS) that allow the development of analytical methods with run times of less than 5 minutes for all routine methods.
The webinar is all about Ultra High Pressure Liquid Chromatography (UHPLC) performance and how new column technology can deliver the best separation power and be married with the best UHPLC system to ensure an outstanding result. It covers how chromatographers can ensure that even very complex and unfamiliar samples are assayed with the highest scrutiny possible? The webinar discusses how to get the most out of solid core column technology with the right UHPLC system. It covers the use of an extremely long column approach for ultra-high resolution assays and the outlines the importance of robustness and retention time stability.
Intervento di Petra Scanferla, CVR
Conferenza Finale Progetto GREEN SITE: “Supercritical fluid technologies for river and sea dredge sediment remediation”. LIFE 10 ENV/IT/343.
Venezia, 13 dicembre 2013
Workshop presented by Gregoire Audo from Gilson Purification at the annual meeting of the American Society of Pharmacognosy (ASP 2018) in Lexington, Kentucky.
In the pharmaceutical arena there is great interest in solid core technology, where there is a broad range of sample types as well as requirements throughout the process of developing new chemical entities. The presentation looks at how solid core technology can be readily adapted to cope with the challenges associated with the pharmaceutical sector, looking at various sample matrices and molecular entities, from small molecules to large biomolecules. The presentation gives an insight into how varying the solid core to porous layer allows the user to optimize separation performance by reducing extra band broadening. Data presented demonstrates how this technology is more robust than fully porous systems when analyzing biological extracts, routinely used in DMPK departments, resulting in longer column lifetimes.
Investigation into the design and application of solid core stationary phases has led to a better understanding of how the phases work and has resulted in their design aligned to the structure of the analytes being separated. The current range of columns available is discussed both in terms of selectivities, and also morphologies, allowing informed decisions to be made by the chromatographer. Using real life examples, coupled with advanced modeling, the effects of the particle size and morphology will be given for both small and large molecules, offering an insight into what the future holds for solid core products.
This webinar will provide pesticides residue analysts with valuable information on the development and optimization of chromatographic separations and mass spectrometry methods for the analysis of pesticide residues in food. The expert speakers will share their knowledge in understanding the critical aspects of the method, assisting analysts in optimizing their methods for the most challenging analyses.
Calibration , Commissioning & Testing of Bently Novada Vibration Analyzer , Emerson Vibration CSIC 2140, Hydrogen Sulphide , Crude Oil in Water, Water in Hydrocarbon Flue Gas HF Laser Gas Analyzers, MSA 4X, Ventis, Detector, Machine Analyzer, IR Temperature, Pressure Recorder, Infra Red Temperature Recorders, Thermocouples testing Humidity Meter, Temperature Calibrators , Laser Level , Carbon Monoxide, LEL detector , Oil & Water Meter , Fluke Thermocouple source meter calibration & CEMS Analyzers. Laboratory Chillers. Planning execution testing training and covering standard documentation at client site .
Naphtha Steam Reforming Catalyst Reduction by NH3 CrackingGerard B. Hawkins
Procedure for Naphtha Steam Reforming Catalyst Reduction by NH3 Cracking
Scope
This procedure applies to the in situ reduction of VULCAN Series steam reforming catalysts using ammonia cracking to form hydrogen over the catalyst in the steam reformer. This procedure covers plants with a dry gas circulation loop for reduction. The procedure is likely to be applied to plants using only heavier feeds (e.g.: LPG and/or naphtha) and some combination of VULCAN Series catalysts.
Introduction
A small number of steam reforming plants do not have an available source of the commonly used reducing media (e.g.: hydrogen, hydrogen-rich off-gas, natural gas). These plants will usually operate on LPG and/or naphtha feed only where cracking of this hydrocarbon is not usually advised for reduction of the steam reforming catalyst. In such circumstances, the plant may be designed to use the installed steam reforming catalyst to crack ammonia to provide hydrogen for the reformer catalyst reduction....
Presentation Outline for Expanding Your High Performance Liquid Chromatography and Ultra High Performance Liquid Chromatography Capabilities with Universal Detection-Shedding Light on Non-Chromophore Compounds:
• Introduction to Charged Aerosol Detection
• How Charged Aerosol Technology Works
• Comparison with Evaporative Light Scattering Detectors
(ELSD)
• Examples of Applications
• Inverse Gradient Solution for Uniform Response
Haloacetic acids (HAAs) are known carcinogens that may occur as disinfection byproducts in drinking water. Traditionally these compounds were analyzed using helium (He) carrier gas, the cost of which has increased tremendously over the years. In this application, we explored using alternative hydrogen (H2) carrier gas to determine HAA concentrations according to EPA method 552.3.
Over the past decade, the number of mAb candidates entering the clinical pipeline has grown significantly. In addition, the number of ADCs that use mAb specificity to carry drug payloads to target sites has increased. As a result, analytical characterization is in high demand.
This webinar discusses new innovations in sample preparation, column technology, UHPLC, and high resolution mass spectroscopy (HRMS) that allow the development of analytical methods with run times of less than 5 minutes for all routine methods.
The webinar is all about Ultra High Pressure Liquid Chromatography (UHPLC) performance and how new column technology can deliver the best separation power and be married with the best UHPLC system to ensure an outstanding result. It covers how chromatographers can ensure that even very complex and unfamiliar samples are assayed with the highest scrutiny possible? The webinar discusses how to get the most out of solid core column technology with the right UHPLC system. It covers the use of an extremely long column approach for ultra-high resolution assays and the outlines the importance of robustness and retention time stability.
Intervento di Petra Scanferla, CVR
Conferenza Finale Progetto GREEN SITE: “Supercritical fluid technologies for river and sea dredge sediment remediation”. LIFE 10 ENV/IT/343.
Venezia, 13 dicembre 2013
Workshop presented by Gregoire Audo from Gilson Purification at the annual meeting of the American Society of Pharmacognosy (ASP 2018) in Lexington, Kentucky.
In the pharmaceutical arena there is great interest in solid core technology, where there is a broad range of sample types as well as requirements throughout the process of developing new chemical entities. The presentation looks at how solid core technology can be readily adapted to cope with the challenges associated with the pharmaceutical sector, looking at various sample matrices and molecular entities, from small molecules to large biomolecules. The presentation gives an insight into how varying the solid core to porous layer allows the user to optimize separation performance by reducing extra band broadening. Data presented demonstrates how this technology is more robust than fully porous systems when analyzing biological extracts, routinely used in DMPK departments, resulting in longer column lifetimes.
Investigation into the design and application of solid core stationary phases has led to a better understanding of how the phases work and has resulted in their design aligned to the structure of the analytes being separated. The current range of columns available is discussed both in terms of selectivities, and also morphologies, allowing informed decisions to be made by the chromatographer. Using real life examples, coupled with advanced modeling, the effects of the particle size and morphology will be given for both small and large molecules, offering an insight into what the future holds for solid core products.
This webinar will provide pesticides residue analysts with valuable information on the development and optimization of chromatographic separations and mass spectrometry methods for the analysis of pesticide residues in food. The expert speakers will share their knowledge in understanding the critical aspects of the method, assisting analysts in optimizing their methods for the most challenging analyses.
Calibration , Commissioning & Testing of Bently Novada Vibration Analyzer , Emerson Vibration CSIC 2140, Hydrogen Sulphide , Crude Oil in Water, Water in Hydrocarbon Flue Gas HF Laser Gas Analyzers, MSA 4X, Ventis, Detector, Machine Analyzer, IR Temperature, Pressure Recorder, Infra Red Temperature Recorders, Thermocouples testing Humidity Meter, Temperature Calibrators , Laser Level , Carbon Monoxide, LEL detector , Oil & Water Meter , Fluke Thermocouple source meter calibration & CEMS Analyzers. Laboratory Chillers. Planning execution testing training and covering standard documentation at client site .
Naphtha Steam Reforming Catalyst Reduction by NH3 CrackingGerard B. Hawkins
Procedure for Naphtha Steam Reforming Catalyst Reduction by NH3 Cracking
Scope
This procedure applies to the in situ reduction of VULCAN Series steam reforming catalysts using ammonia cracking to form hydrogen over the catalyst in the steam reformer. This procedure covers plants with a dry gas circulation loop for reduction. The procedure is likely to be applied to plants using only heavier feeds (e.g.: LPG and/or naphtha) and some combination of VULCAN Series catalysts.
Introduction
A small number of steam reforming plants do not have an available source of the commonly used reducing media (e.g.: hydrogen, hydrogen-rich off-gas, natural gas). These plants will usually operate on LPG and/or naphtha feed only where cracking of this hydrocarbon is not usually advised for reduction of the steam reforming catalyst. In such circumstances, the plant may be designed to use the installed steam reforming catalyst to crack ammonia to provide hydrogen for the reformer catalyst reduction....
OPERATION AND TROUBLE SHOOTING IN UREA SYNTHESI SSECTION.pdfPremBaboo4
In M/S. Saipem process the HP loop operation is very typical including HP stripper and Reactor N/C ratio, H/C ratio and conversion of the reactor. The MP loop also very typical in operation point of view in which the level of Medium pressure absorber is fluctuating frequently when plant starts up /shut down or any process disturbances/upset. This article intended how to tackle theses type of problem and the MP absorber level and why the level is so important? Why density variation in startup/shut down or any upset of the process by any reason. Why the level transmitter of MP absorber is showing erratic level? How to prevent CO2 Carryover to ammonia receiver through ammonia condenser. Can we replace the DP type transmitter with radar type in stripper as well as MP absorber?
OPERATION AND TROUBLE SHOOTING IN UREA SYNTHESI SSECTION.pdfPremBaboo4
In M/S. Saipem process the HP loop operation is very typical including HP stripper and Reactor N/C ratio, H/C ratio and conversion of the reactor. The MP loop also very typical in operation point of view in which the level of Medium pressure absorber is fluctuating frequently when plant starts up /shut down or any process disturbances/upset. This article intended how to tackle theses type of problem and the MP absorber level and why the level is so important? Why density variation in startup/shut down or any upset of the process by any reason. Why the level transmitter of MP absorber is showing erratic level? How to prevent CO2 Carryover to ammonia receiver through ammonia condenser. Can we replace the DP type transmitter with radar type in stripper as well as MP absorber?
Hydrotropes are organic compounds that increase the solubility of a surfactant in a formulation. Traditional hydrotropes, such as sodium cumene sulfonate, bring no additional value to the cleaning process.
Multifunctional hydrotropes are cosurfactants that bring additional value to formulations in synergy with the primary surfactant. High performance at low concentration, foam control, tolerance to alkali and electrolytes, minimal impact on the environment and low human and aquatic toxicity are examples of such additional benefits.
Akzo Nobel Surface Chemistry has a range of readily biodegradable cosurfactants for Household and Industrial & Institutional cleaning applications. The presentation will review AkzoNobel Surface Chemistry’s multifunctional hydrotropes with examples of formulations and their performance.
5. Marshalltown Water Pollution Control
Plant
• Began service in 1940
• Currently serves 26,000 people
• Plant divided into 2 processes
– Mechanical plant to treat municipal waste
– Sequencing Batch Reactor to treat hog waste
• Effluent combined before UV disinfection
• Methane capture from stabilization basins
• Sludge land applied after stabilization
24. SBR Plant
• Need
– 1.6 MGD wastewater from a local hog processing
plant
– Hog waste caused “foaming” in biological
reactors
– High Organic Nitrogen Content: 200 mg/L
• Two Sequencing Batch Reactors
– Operational in 1992
– 2 MGD capacity
25. Current SBR Configuration
Influent Effluent
Stage 1 Stage 2 Stage 3 Stage 4
Anaerobi Aerobic Settle Decant
c 120 min 60 min 60 min
120 min
Total Cycle Time: 360 min (6 hr)
Current 15 – 25% P removal
36. Biological Process Plan View
Tank 1
Tank 2
Final
Tank 5
Clarifier
Tank 3
Tank 4
• Tank 1‐4: 90ft x 19ft x 12ft (27.4m x 5.8m x 3.7m)
• Tank 5: 42 ft x 84 ft x 13 ft (12.8m x 25.6m x 4m)
• Total available volume: 128,000 ft³
41. BPR Systems Considered
• Anaerobic‐Anoxic‐Oxic (A2/O)
• Virginia Initiative Plant (VIP)
• University of Cape Town (UCT)
• Bardenpho™ (5‐stage)
• Initial evaluation
– Compare HRT to available tank volume
– Eliminated UCT and Bardenpho ™ processes
42. Preliminary VIP and A²/O Comparison
VIP A²/O
Benefits Benefits
• Good nitrogen removal • Good nitrogen removal
• Low oxygen requirement • Low oxygen removal
• Higher Phosphorus • Lower HRT
Removal • Less Reactor volume
required
• More process flexibility
Drawbacks
• Additional Recycle Line Drawbacks
required • Less phosphorus removal
• Higher HRT capability
43. BOD:P Ratio Comparison
BPR Process BOD/P ratio
VIP 15‐20
A2/O 20‐25
Table 8‐24 Metcalf & Eddy Wastewater Engineering
Max Month Flow Average Annual
BPR Process BOD/P Flow BOD/P
Mechanical Influent 56 39
Mechanical with 33% SBR 44 28
Influent
58. Recommendation
Implement A²/O system
• Lowest relative cost
• Most operator flexibility
• Least construction required
• Capable of meeting effluent standard
• Better ammonia‐N removal in winter models
59. Design Objective Achieved?
• Minimum construction
– SBR system remain physically unaltered
– Construction in areas of aging concrete
– Only two new recycle pumps needed for the
recommended A2/O design
• A2/O meets proposed permit limits
• Flexibility for plant operator
– Recycle rates
– SRT
– SBR phases
60. Special Thanks
• Lance Aldrich ‐ Design information
• Eric Evans ‐ Biown
• Kris Evans ‐ Mentor
• Fred Beyer
– Monthly monitoring reports
– Plant tours
– Design information
• IWPCA