Dnapl Recovery Strategy For Coal Tar Final
•
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The document discusses strategies for recovering dense non-aqueous phase liquid (DNAPL) at sites impacted by coal tar and creosote. It outlines case studies of DNAPL recovery programs at two wood treating facilities. Large diameter recovery wells and trenches were effective at removing mobile DNAPL, with over 20,000 gallons recovered annually. DNAPL recovery provided a cost-effective source control method and risk reduction compared to alternatives like in-situ thermal treatment.
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3.11 IUKWC Workshop Freshwater EO - Arindam Chowdhury - Jun17
Life Cycle Assessment (LCA) del progetto Green Site
Life Cycle Assessment (LCA) del progetto Green Site
Absolute isotopic scale for deuterium analysis of natural waters
Absolute isotopic scale for deuterium analysis of natural waters
Graphical presentation and classification for assessment of Ground water Qual...
Graphical presentation and classification for assessment of Ground water Qual...
Similar to Dnapl Recovery Strategy For Coal Tar Final
Alternative Usage Cases for Pressure Retarded Osmosis Power Generation
These slides describe my current Doctoral research in Pressure Retarded Osmosis, where I demonstrate the applicability of the technology to desalination utilities in Tampa, Florida. While still in it's early stages, I hope to continue this project throughout my Doctoral Program. This talk was presented at the 2018 American Ecological Engineering Society Meeting in Houston, Texas.
Big Spring Run Restoration Project Background & Monitoring Results, November-...
The document summarizes the results of a legacy sediment removal and aquatic ecosystem restoration project along Big Spring Run in Pennsylvania. Key points:
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- Suspended sediment concentrations dropped from 556 mg/L to 74 mg/L and annual sediment loads decreased by 600 tons per year.
- Nitrate levels in both surface and groundwater gradually decreased in the years after restoration, indicating increased denitrification and nutrient retention within the restored floodplain soils.
Enabling the Flow of Ecosystem Services from Agriculture to Improve Puerto Ri...
Enabling the Flow of Ecosystem Services from Agriculture to Improve Puerto Ri...National Institute of Food and Agriculture
This document summarizes a study examining the impact of different fertilizer application rates on nitrous oxide (N2O) emissions and nitrogen losses from plantain crops in Puerto Rico. The study involves measuring N2O fluxes, soil nutrients, plant growth, and yields from a control and 3 treatments - a slow release fertilizer, the local agricultural university's recommended rate, and no additional nitrogen. Preliminary results show significantly reduced N2O emissions from the lower nitrogen rates, though yields were similar across treatments. The results will be used to calibrate a modeling tool to estimate potential nutrient and greenhouse gas reductions across Puerto Rico and identify areas for greatest impact. The long term goals are to develop best practices to reduce emissions and establish anSeawater desalination – Environmental Impact Assessment (EIA) and Best Availa...
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This document discusses the need for environmental impact assessments and best available techniques for seawater desalination projects given their potential impacts. It notes that while desalination is a resource intensive process, mitigation measures exist to address all significant environmental impacts and make sustainable desalination technically feasible using existing technologies. These include regulatory frameworks to minimize impacts on salinity, substitution of harmful chemicals, and compensation measures like using renewable energy to offset carbon emissions.3178_IGARSS11.ppt
The document discusses the NASA Soil Moisture Active Passive (SMAP) mission, which is scheduled for launch in 2014. SMAP will map global soil moisture and freeze/thaw state from space to further understanding of the water, energy, and carbon cycles. The mission involves an L-band radar and radiometer to provide soil moisture measurements. Algorithms are being developed and tested to generate products like soil moisture maps from the radar-radiometer data. Validation efforts and working groups are helping prepare for the mission.
Examples of CCS R&D programs in the US
Presentation by Dr Robert Wright, APEC and US Department of Energy at the 2015 CCUS Workshop on CO2 Storage, January 22 at the University of Sonora, Hermosillo
Occurrence and Attenuation 2014
1) Groundwater at an industrial site in Portland, Oregon was impacted by TCE and other chlorinated solvents used from 1980-1989. Additional impacts were from historical disposal of manufactured gas plant waste containing naphthalene and other compounds.
2) In situ chemical reduction was used to treat the TCE source area, demonstrating success in removing TCE by 2013. Samples found additional contaminants of interest (COIs) like 1,1,2-trichloroethane in the gas plant waste.
3) The study analyzed data on the COIs to understand their environmental fate and the effectiveness of treatment. Models were used to predict contaminant movement between gas plant waste and groundwater. Degradation
W04 bioremediation of a chlorinated solvents site-turner
W04 bioremediation of a chlorinated solvents site-turnerAPWA Florida Chapter 2013 Annual Meeting and Trade Show
This document provides an overview of the site remediation process and a case study on the bioremediation of a chlorinated solvents site. The general site remediation process includes site assessment, conceptual site model development, remediation technology screening, pilot testing, final remedy selection, implementation, operation and monitoring, optimization, and site closure. For the case study site, a former industrial facility contaminated with chlorinated solvents, a pilot study confirmed bioremediation was a viable technology. The full-scale enhanced anaerobic bioremediation system involved circulating groundwater with lactate injections to distribute electron donors. System optimization through pH buffering improved degradation rates under the existing building. The remedy successfully reduced contaminSCHO0610BSOT-e-e-FINAL
This document discusses cooling water options for new nuclear power stations in the UK. It provides an overview of different cooling system designs, including direct once-through systems and various cooling tower options. It evaluates the environmental impacts of water abstraction and thermal discharges for each system. While direct cooling can have impacts on aquatic life from intake and discharge, the document finds it can be considered best available technology if best practices for design, mitigation and compensation are followed. Site-specific factors will also determine the suitability of different options.
The Development and Deployment in Developing Countries of Manifolded, Three-S...
The Development and Deployment in Developing Countries of Manifolded, Three-S...Michigan State University Research
Bob McDonald presents the latest updates from Aqua Clara in their efforts to provide affordable water filtration systems to low income families in developing countries.The performance of portable mid-infrared spectroscopy for the prediction of s...
This presentation was presented during the 3 Parallel session on Theme 1, Monitoring, mapping, measuring, reporting and verification (MRV) of SOC, of the Global Symposium on Soil Organic Carbon that took place in Rome 21-23 March 2017. The presentation was made by Mr. Martin Soriano-Disla, CSIRO Land and Water - Australia, in FAO Hq, Rome
Lorna Fitzsimons
This document discusses energy usage in wastewater treatment. It analyzes energy requirements for different desalination technologies like reverse osmosis and compares energy use at several Irish wastewater treatment plants. The project aims to improve resource efficiency at plants through benchmarking, developing decision tools, and conducting life cycle assessments to analyze sources like electricity, lime and transport contributing to environmental impacts. Future work involves optimizing small wastewater treatment plant design.
Industry update on nitrogen removal programs across the United States: What d...
Industry update on nitrogen removal programs across the United States: What d...Buzzards Bay Coalition
An industry update on nitrogen removal programs across the United States. Presented by Rick Cisterna, Senior Associate with Hazen and Sawyer during the Buzzards Bay Coalition's 2011 Decision Makers Workshop series. Learn more at www.savebuzzardsbay.org/DecisionMakersThe use of Engineered Nanomaterials in Environmental Remediation: Environment...
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Nanotechnology is the purposeful manipulation of matter on an atomic scale. Materials created in this manner often exhibit unique physical and chemical properties, which have useful applications in various industries. A growing use for some types of engineered nanomaterials is in the area of environmental remediation, termed nanoremediation. While this technique appears to be effective for cleanup, there are still many unanswered questions regarding its long-term impact to environmental quality and human health. No long-term studies exist regarding the potential environmental impact of nanoremediation. While animal studies have shown the potential for adverse health effects, limited data regarding human health are available. The US Environmental Protection Agency is currently adapting existing regulations to cover the use of nanomaterials in remediation, but this approach is limited. Many questions still remain regarding fate and transport, verification of clean-up, and potential occupational and community exposures.Leachability of Elements From Hydraulic Fracturing Residuals by Dr. Gregory B...
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This document summarizes a study on the leachability of elements from hydraulic fracturing residuals. The study involved collecting representative samples of residuals, identifying elements of concern, conducting leaching tests using different solutions, and analyzing the results. Key findings include that alkali metals, alkaline earth metals, and halides leached at high concentrations. Transition metals and metalloids generally leached at low or trace levels. More elements leached in more aggressive solutions. Disposal practices may require treatment of residuals before landfilling to prevent groundwater contamination.Preliminary progress on global soil erosion assessment
Mr. Rui Li, Institute of Soil and Water
Conservation, China. Global Symposium on Soil Erosion (GSER19), 15 - 17 May 2019 at FAO HQ.
TH3.L10.1: THE NASA SOIL MOISTURE ACTIVE PASSIVE (SMAP) MISSION: OVERVIEW
The document provides an overview of the NASA Soil Moisture Active Passive (SMAP) mission, which is scheduled to launch in November 2014. SMAP's objectives are to map global soil moisture and freeze/thaw state to further understanding of water, energy and carbon cycles. It will carry radiometer and radar instruments to make high-resolution soil moisture measurements. SMAP data products will support applications in weather forecasting, climate modeling, agriculture, drought monitoring and other areas. The mission involves extensive calibration, validation and community engagement efforts.
Optimizing a Sorptive Biomatrix MTBE Barrier
Presented by Jack Sheldon at the 2018 AEHS Conference, this presentation includes information on a case study about a gas station and how Antea Group sampled and used innovative carbon methodologies to treat groundwater on site.
Future of Wastewater
The document discusses next generation wastewater treatment approaches at multiple scales from individual buildings to entire watersheds. At the building scale, technologies like greywater treatment and rainwater harvesting are discussed. At the cluster scale, technologies like extracting clean water from wastewater and energy extraction from organics are proposed. Finally, the catchment scale examines resource recovery opportunities at centralized wastewater treatment facilities through incremental process improvements.
Tracking Full-Scale Performance of an Injectable Sorptive Biobarrier: One Yea...
Learn how Antea Group helped their gas station client with a once-leaking UST help remediate off-site groundwater using a sorptive biobarrier.
This was presented at the AEHS Conference in San Diego, California.
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Alternative Usage Cases for Pressure Retarded Osmosis Power Generation
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Enabling the Flow of Ecosystem Services from Agriculture to Improve Puerto Ri...
Enabling the Flow of Ecosystem Services from Agriculture to Improve Puerto Ri...
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W04 bioremediation of a chlorinated solvents site-turner
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The performance of portable mid-infrared spectroscopy for the prediction of s...
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Industry update on nitrogen removal programs across the United States: What d...
The use of Engineered Nanomaterials in Environmental Remediation: Environment...
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Leachability of Elements From Hydraulic Fracturing Residuals by Dr. Gregory B...
Preliminary progress on global soil erosion assessment
Preliminary progress on global soil erosion assessment
TH3.L10.1: THE NASA SOIL MOISTURE ACTIVE PASSIVE (SMAP) MISSION: OVERVIEW
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Tracking Full-Scale Performance of an Injectable Sorptive Biobarrier: One Yea...
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More from Neale Misquitta
Beazer Mps Presentation Agency Support
Another recent upload to my website of work regarding monitored plume stability and monitored natural attenuation at creosote and coal tar DNAPL sites, including many Beazer sites.
Coal Tar DNAPL Aging
As uploaded, this is a photograph of the skin developed and dissolution from the aging of coal tar DNAPL in groundwater. Basically, the dissolution is the same 25 mg/l oil and grease that you see in the influent from DNAPL recovery systems, mostly naphtalene, also, makes the case for pulse operation of these systems.
environmental scivis via dynamic and thematc mapping
January 2010 Presentation for industry group regarding environmental scivis - scientific visualization using techniques such as dynamic and thematic graphing and mapping.
Remedition Using Soy Based Aerobic Co-Metabolism for Removal of Chlorinated H...
Presentation from the Nov 2008 Alcoa Forum. Thanks for the upload. Note - the majority of the site work is related to Do Blackert - i updated the pdf to include Dons link information. The rest of the information is from the presentation.
Using Critical Gradient Data To Predict Dnapl
Presentation given regarding the crtical hydrauli gradientsequired to mobilize DNAPL at new england site. Gradients have not changed
Groundwater Remediation Optimization - Neale Misquitta Patent
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Mgp 2008 Conference
1) A study evaluated the effectiveness of a creosote containment system (SBS) at a former wood treating facility using multiple techniques including critical gradient analysis, dye tests, TarGOST borings, and CPT.
2) The analysis found that low river stages created sufficient upward gradients to mobilize NAPL in river sediments, allowing it to potentially circumvent the SBS.
3) Data characterized the lateral and vertical extent of NAPL, finding it may be circumventing the ends of the SBS and possibly migrating under areas where the SBS was not driven deep enough.
More from Neale Misquitta (7)
environmental scivis via dynamic and thematc mapping
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Remedition Using Soy Based Aerobic Co-Metabolism for Removal of Chlorinated H...
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Groundwater Remediation Optimization - Neale Misquitta Patent
Groundwater Remediation Optimization - Neale Misquitta Patent
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How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
What is an RPA CoE? Session 1 – CoE Vision
In the first session, we will review the organization's vision and how this has an impact on the COE Structure.
Topics covered:
• The role of a steering committee
• How do the organization’s priorities determine CoE Structure?
Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
Dandelion Hashtable: beyond billion requests per second on a commodity server
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
Demystifying Knowledge Management through Storytelling
The Department of Veteran Affairs (VA) invited Taylor Paschal, Knowledge & Information Management Consultant at Enterprise Knowledge, to speak at a Knowledge Management Lunch and Learn hosted on June 12, 2024. All Office of Administration staff were invited to attend and received professional development credit for participating in the voluntary event.
The objectives of the Lunch and Learn presentation were to:
- Review what KM ‘is’ and ‘isn’t’
- Understand the value of KM and the benefits of engaging
- Define and reflect on your “what’s in it for me?”
- Share actionable ways you can participate in Knowledge - - Capture & Transfer
Introduction of Cybersecurity with OSS at Code Europe 2024
I develop the Ruby programming language, RubyGems, and Bundler, which are package managers for Ruby. Today, I will introduce how to enhance the security of your application using open-source software (OSS) examples from Ruby and RubyGems.
The first topic is CVE (Common Vulnerabilities and Exposures). I have published CVEs many times. But what exactly is a CVE? I'll provide a basic understanding of CVEs and explain how to detect and handle vulnerabilities in OSS.
Next, let's discuss package managers. Package managers play a critical role in the OSS ecosystem. I'll explain how to manage library dependencies in your application.
I'll share insights into how the Ruby and RubyGems core team works to keep our ecosystem safe. By the end of this talk, you'll have a better understanding of how to safeguard your code.
Mutation Testing for Task-Oriented Chatbots
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.
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These are the slides for the presentation, "Component Testing: Bridging the gap between frontend applications" that was presented at QA or the Highway 2024 in Columbus, OH by Zachary Hamm.
The Microsoft 365 Migration Tutorial For Beginner.pptx
This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
Northern Engraving | Nameplate Manufacturing Process - 2024
Manufacturing custom quality metal nameplates and badges involves several standard operations. Processes include sheet prep, lithography, screening, coating, punch press and inspection. All decoration is completed in the flat sheet with adhesive and tooling operations following. The possibilities for creating unique durable nameplates are endless. How will you create your brand identity? We can help!
Harnessing the Power of NLP and Knowledge Graphs for Opioid Research
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Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Join us to learn how UiPath Apps can directly and easily interact with prebuilt connectors via Integration Service--including Salesforce, ServiceNow, Open GenAI, and more.
The best part is you can achieve this without building a custom workflow! Say goodbye to the hassle of using separate automations to call APIs. By seamlessly integrating within App Studio, you can now easily streamline your workflow, while gaining direct access to our Connector Catalog of popular applications.
We’ll discuss and demo the benefits of UiPath Apps and connectors including:
Creating a compelling user experience for any software, without the limitations of APIs.
Accelerating the app creation process, saving time and effort
Enjoying high-performance CRUD (create, read, update, delete) operations, for
seamless data management.
Speakers:
Russell Alfeche, Technology Leader, RPA at qBotic and UiPath MVP
Charlie Greenberg, host
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
A Deep Dive into ScyllaDB's Architecture
This talk will cover ScyllaDB Architecture from the cluster-level view and zoom in on data distribution and internal node architecture. In the process, we will learn the secret sauce used to get ScyllaDB's high availability and superior performance. We will also touch on the upcoming changes to ScyllaDB architecture, moving to strongly consistent metadata and tablets.
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
Biomedical Knowledge Graphs for Data Scientists and Bioinformaticians
Dmitrii Kamaev, PhD
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From Natural Language to Structured Solr Queries using LLMs
This talk draws on experimentation to enable AI applications with Solr. One important use case is to use AI for better accessibility and discoverability of the data: while User eXperience techniques, lexical search improvements, and data harmonization can take organizations to a good level of accessibility, a structural (or “cognitive” gap) remains between the data user needs and the data producer constraints.
That is where AI – and most importantly, Natural Language Processing and Large Language Model techniques – could make a difference. This natural language, conversational engine could facilitate access and usage of the data leveraging the semantics of any data source.
The objective of the presentation is to propose a technical approach and a way forward to achieve this goal.
The key concept is to enable users to express their search queries in natural language, which the LLM then enriches, interprets, and translates into structured queries based on the Solr index’s metadata.
This approach leverages the LLM’s ability to understand the nuances of natural language and the structure of documents within Apache Solr.
The LLM acts as an intermediary agent, offering a transparent experience to users automatically and potentially uncovering relevant documents that conventional search methods might overlook. The presentation will include the results of this experimental work, lessons learned, best practices, and the scope of future work that should improve the approach and make it production-ready.
Main news related to the CCS TSI 2023 (2023/1695)
An English 🇬🇧 translation of a presentation to the speech I gave about the main changes brought by CCS TSI 2023 at the biggest Czech conference on Communications and signalling systems on Railways, which was held in Clarion Hotel Olomouc from 7th to 9th November 2023 (konferenceszt.cz). Attended by around 500 participants and 200 on-line followers.
The original Czech 🇨🇿 version of the presentation can be found here: https://www.slideshare.net/slideshow/hlavni-novinky-souvisejici-s-ccs-tsi-2023-2023-1695/269688092 .
The videorecording (in Czech) from the presentation is available here: https://youtu.be/WzjJWm4IyPk?si=SImb06tuXGb30BEH .
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Java is for many years one of the most popular programming languages, but it used to have hard times in the Serverless community. Java is known for its high cold start times and high memory footprint, comparing to other programming languages like Node.js and Python. In this talk I'll look at the general best practices and techniques we can use to decrease memory consumption, cold start times for Java Serverless development on AWS including GraalVM (Native Image) and AWS own offering SnapStart based on Firecracker microVM snapshot and restore and CRaC (Coordinated Restore at Checkpoint) runtime hooks. I'll also provide a lot of benchmarking on Lambda functions trying out various deployment package sizes, Lambda memory settings, Java compilation options and HTTP (a)synchronous clients and measure their impact on cold and warm start times.
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Dnapl Recovery Strategy For Coal Tar Final
- 1. DNAPL RECOVERY STRATEGY FOR COAL TAR/CREOSOTE DNAPL-IMPACTED GROUNDWATER May 27, 2004 Neale Misquitta, Key Environmental Mitchel Brourman, Beazer East, Inc. Monterey Conference
- 18. 4: New England Facility