Bio oxidation- a technology for sustainable pollution controlPriyam Jyoti Borah
Bio-oxidation is a. biological air pollution. control technology. that utilizes bacteria & fungi to biologically absorb and digest vapor-phase VOCs and odorous compounds commonly found in industrial and municipal applications.
Nanotechnology is the emerging technology in almost all fields of science ..It is preferred and studied due to its high efficiency in all fields of its application... Also being used in overcoming or eliminating environmental pollution to a greater level, this presentation is all about how Nanotechnology is useful in treating polluted water
Advanced oxidation processes to recover reverse osmosis cleaning watersacciona
Marina Arnaldos, responsable de desalación de desalación y nuevas tecnologías de ACCIONA Agua, presentó la ponencia “Advanced oxidation processes to recover reverse osmosis cleaning waters for irrigation purposes” en la conferencia anual que la asociación europea de desalación ha celebrado en Roma entre los días 22-26 de mayo de 2016.
Bio-Filter the Green Technology to treat Sewage, Effluent from Dairy Industry, Printing and Dye Industry, Gelatin Capsule manufacturing industry ,Fisheries Industry, For non toxic Chemical Industry effluent treatment . No Smell , No Slude Formation, Low Cost and Extremely low operating cost.
This presentation is made for S.Y.Bsc. Students.
The presentation includes Wastewater microbiology. The presentation includes information about sources as well as methods of wastewater treatment.
The use of nanoparticles and nanotechnology to enhance the microbial activity to remove pollutants, they also enhance bioremediation.
NanoBioremediation has the potential not only to reduce the overall costs of cleaning up large-scale contaminated sites, but it can also reduce clean up time.
Use of biofilters for air pollution controlIshaneeSharma
This presentation is about the use of biofilters in air pollution control. Working principle of biofilters, where it is used, its advantages and disadvantages have been discussed in this presentation. Various design parameters are also discussed.
References:
1. https://www.rpi.edu/dept/chem-eng/Biotech-Environ/MISC/biofilt/biofiltration.htm
2. https://www3.epa.gov/ttncatc1/dir1/fbiorect.pdf
3. https://civildigital.com/detailed-study-biofilters-controlling-air-pollution-seminar-presentation/
4. https://emis.vito.be/en/techniekfiche/biofilter-0
5. https://www.slideshare.net/AabidMir/biofilters-and-air-pollution-controll/25
Pollution from sewage is a primary environmental health hazard (wastewater effluent).
The purpose of municipal wastewater treatment is to limit pollution of the receiving watercourse.
The receiving watercourse may also be a source of drinking water.
Bio oxidation- a technology for sustainable pollution controlPriyam Jyoti Borah
Bio-oxidation is a. biological air pollution. control technology. that utilizes bacteria & fungi to biologically absorb and digest vapor-phase VOCs and odorous compounds commonly found in industrial and municipal applications.
Nanotechnology is the emerging technology in almost all fields of science ..It is preferred and studied due to its high efficiency in all fields of its application... Also being used in overcoming or eliminating environmental pollution to a greater level, this presentation is all about how Nanotechnology is useful in treating polluted water
Advanced oxidation processes to recover reverse osmosis cleaning watersacciona
Marina Arnaldos, responsable de desalación de desalación y nuevas tecnologías de ACCIONA Agua, presentó la ponencia “Advanced oxidation processes to recover reverse osmosis cleaning waters for irrigation purposes” en la conferencia anual que la asociación europea de desalación ha celebrado en Roma entre los días 22-26 de mayo de 2016.
Bio-Filter the Green Technology to treat Sewage, Effluent from Dairy Industry, Printing and Dye Industry, Gelatin Capsule manufacturing industry ,Fisheries Industry, For non toxic Chemical Industry effluent treatment . No Smell , No Slude Formation, Low Cost and Extremely low operating cost.
This presentation is made for S.Y.Bsc. Students.
The presentation includes Wastewater microbiology. The presentation includes information about sources as well as methods of wastewater treatment.
The use of nanoparticles and nanotechnology to enhance the microbial activity to remove pollutants, they also enhance bioremediation.
NanoBioremediation has the potential not only to reduce the overall costs of cleaning up large-scale contaminated sites, but it can also reduce clean up time.
Use of biofilters for air pollution controlIshaneeSharma
This presentation is about the use of biofilters in air pollution control. Working principle of biofilters, where it is used, its advantages and disadvantages have been discussed in this presentation. Various design parameters are also discussed.
References:
1. https://www.rpi.edu/dept/chem-eng/Biotech-Environ/MISC/biofilt/biofiltration.htm
2. https://www3.epa.gov/ttncatc1/dir1/fbiorect.pdf
3. https://civildigital.com/detailed-study-biofilters-controlling-air-pollution-seminar-presentation/
4. https://emis.vito.be/en/techniekfiche/biofilter-0
5. https://www.slideshare.net/AabidMir/biofilters-and-air-pollution-controll/25
Pollution from sewage is a primary environmental health hazard (wastewater effluent).
The purpose of municipal wastewater treatment is to limit pollution of the receiving watercourse.
The receiving watercourse may also be a source of drinking water.
Water :the universal need. As we all know water is most essential component to mankind yet its quality is in hazardous state and quantity is declining. This slide contains crucial information about water purification systems like what happens to water before we get it I'm our home?!
All living things require clean, uncontaminated water as the most crucial compound for life on Earth
Ideally, drinking water should be clear, colorless, and well aerated, with no unpalatable taste or odor, and it should contain no suspended matter, harmful chemical substances, or pathogenic microorganisms.
Wastewater discharge from industries, agricultural pollution, municipal wastewater, and poor environmental sanitation are the main sources of water contamination
Chatty Kathy - UNC Bootcamp Final Project Presentation - Final Version - 5.23...John Andrews
SlideShare Description for "Chatty Kathy - UNC Bootcamp Final Project Presentation"
Title: Chatty Kathy: Enhancing Physical Activity Among Older Adults
Description:
Discover how Chatty Kathy, an innovative project developed at the UNC Bootcamp, aims to tackle the challenge of low physical activity among older adults. Our AI-driven solution uses peer interaction to boost and sustain exercise levels, significantly improving health outcomes. This presentation covers our problem statement, the rationale behind Chatty Kathy, synthetic data and persona creation, model performance metrics, a visual demonstration of the project, and potential future developments. Join us for an insightful Q&A session to explore the potential of this groundbreaking project.
Project Team: Jay Requarth, Jana Avery, John Andrews, Dr. Dick Davis II, Nee Buntoum, Nam Yeongjin & Mat Nicholas
Techniques to optimize the pagerank algorithm usually fall in two categories. One is to try reducing the work per iteration, and the other is to try reducing the number of iterations. These goals are often at odds with one another. Skipping computation on vertices which have already converged has the potential to save iteration time. Skipping in-identical vertices, with the same in-links, helps reduce duplicate computations and thus could help reduce iteration time. Road networks often have chains which can be short-circuited before pagerank computation to improve performance. Final ranks of chain nodes can be easily calculated. This could reduce both the iteration time, and the number of iterations. If a graph has no dangling nodes, pagerank of each strongly connected component can be computed in topological order. This could help reduce the iteration time, no. of iterations, and also enable multi-iteration concurrency in pagerank computation. The combination of all of the above methods is the STICD algorithm. [sticd] For dynamic graphs, unchanged components whose ranks are unaffected can be skipped altogether.
Levelwise PageRank with Loop-Based Dead End Handling Strategy : SHORT REPORT ...Subhajit Sahu
Abstract — Levelwise PageRank is an alternative method of PageRank computation which decomposes the input graph into a directed acyclic block-graph of strongly connected components, and processes them in topological order, one level at a time. This enables calculation for ranks in a distributed fashion without per-iteration communication, unlike the standard method where all vertices are processed in each iteration. It however comes with a precondition of the absence of dead ends in the input graph. Here, the native non-distributed performance of Levelwise PageRank was compared against Monolithic PageRank on a CPU as well as a GPU. To ensure a fair comparison, Monolithic PageRank was also performed on a graph where vertices were split by components. Results indicate that Levelwise PageRank is about as fast as Monolithic PageRank on the CPU, but quite a bit slower on the GPU. Slowdown on the GPU is likely caused by a large submission of small workloads, and expected to be non-issue when the computation is performed on massive graphs.
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Empowering the Data Analytics Ecosystem: A Laser Focus on Value
The data analytics ecosystem thrives when every component functions at its peak, unlocking the true potential of data. Here's a laser focus on key areas for an empowered ecosystem:
1. Democratize Access, Not Data:
Granular Access Controls: Provide users with self-service tools tailored to their specific needs, preventing data overload and misuse.
Data Catalogs: Implement robust data catalogs for easy discovery and understanding of available data sources.
2. Foster Collaboration with Clear Roles:
Data Mesh Architecture: Break down data silos by creating a distributed data ownership model with clear ownership and responsibilities.
Collaborative Workspaces: Utilize interactive platforms where data scientists, analysts, and domain experts can work seamlessly together.
3. Leverage Advanced Analytics Strategically:
AI-powered Automation: Automate repetitive tasks like data cleaning and feature engineering, freeing up data talent for higher-level analysis.
Right-Tool Selection: Strategically choose the most effective advanced analytics techniques (e.g., AI, ML) based on specific business problems.
4. Prioritize Data Quality with Automation:
Automated Data Validation: Implement automated data quality checks to identify and rectify errors at the source, minimizing downstream issues.
Data Lineage Tracking: Track the flow of data throughout the ecosystem, ensuring transparency and facilitating root cause analysis for errors.
5. Cultivate a Data-Driven Mindset:
Metrics-Driven Performance Management: Align KPIs and performance metrics with data-driven insights to ensure actionable decision making.
Data Storytelling Workshops: Equip stakeholders with the skills to translate complex data findings into compelling narratives that drive action.
Benefits of a Precise Ecosystem:
Sharpened Focus: Precise access and clear roles ensure everyone works with the most relevant data, maximizing efficiency.
Actionable Insights: Strategic analytics and automated quality checks lead to more reliable and actionable data insights.
Continuous Improvement: Data-driven performance management fosters a culture of learning and continuous improvement.
Sustainable Growth: Empowered by data, organizations can make informed decisions to drive sustainable growth and innovation.
By focusing on these precise actions, organizations can create an empowered data analytics ecosystem that delivers real value by driving data-driven decisions and maximizing the return on their data investment.
5. Goals of wastewater treatment:
Reduction of organic load of the wastewater effluent to limit
eutrophication (BOD, COD limits),
Reduction of microbiological contamination that may
transmit infectious disease.
7. WASTEWATER TREATMENT
• Preliminary
• treatment is a physical process that removes large contaminants.
• Primary
• treatment involves physical sedimentation of particulates.
• Secondary
• treatment involves physical and biological treatment to reduce
organic load of wastewater.
• Tertiary or advanced treatments.
8.
9. Tertiary or Advanced Treatment
• Nitrification-denitrification process to remove N
and P
• Filtration
• Carbon Adsorption
• Constructed (Man-made] Wetland
10. On-site wastewater treatment
• More than 25% of all households in the U.S.
are served by on-site treatment systems.
• About 3 billion gallons of wastewater is
discharged each day to on-site wastewater
treatment systems.
• Potential disease transmission risks through
wastewater should be limited.
11. Typical septic system design:
• Septic systems typically consist of:
A septic tank (concrete, with inlet and outlet, baffles, and
removable top for cleaning), which collects and holds waste,
A drain field or tile field (plastic or tile pipe with outlets) which
allows wastewater effluent to infiltrate slowly into soils.
Plumbing connections.
12.
13. Periodic summery
• Treatment of wastewater is necessary to
protect the environment and preserve the
quality of water for drinking.
• Treatment of municipal wastewater typically
includes preliminary, primary treatment,
secondary treatment, and tertiary treatment.
• On-site wastewater treatment is facilitated by
septic tank systems.
14. Drinking water treatment
• Clarification - primarily a physical process, but may be
aided by addition of chemicals.
• Filtration - also primarily physical, but chemicals may aid
the process.
• Disinfection - typically a chemical process that reduces
pathogenic microorganisms.
15. Clarification of drinking water:
• Clarification removes particulates that contribute to
turbidity and contamination of water.
• Clarification is aided by chemicals which cause particulates
to aggregate, precipitate, and form sediment (sludge).
16. FILTRATION
• Separate nonsettleable solids from water.
• Combined with coagulation/clarification, filtration can
remove 84%-96% turbidity, coliform bacteria 97-
99.95%, and >99% Giardia.
17. Type of Filtration
• Rapid filtration - uses gravity (faster flow).
• Slow filtration - uses gravity [slower flow].
• Pressure sand filters-use water pressure.
• Diatomaceous earth (DE) filtration
• Microstraining - uses fine steel fabric (sometimes
used prior to other filtrations).
18. Cleaning (backwashing) filters
• Determination of how often to back-wash can be
made on the basis of:
• Head loss (pressure loss),
• Loss of water quality (e.g., increased turbidity), or
• Time since last backwash.
19. Backwashing process
• Water flow is reversed through the filter bed.
• The rate of backwash is designed to partially expand
(fluidize) the filter bed.
• Suspended matter is removed by shear forces as the water
moves through the fluidized bed.
• Additional cleaning occurs when particles of the bed
abrade against each other.
20. Flow control through filters
• Constant-rate filtration
• Flow rate is controlled by limiting the discharge rate, limiting
the rate of inflow by a weir, or
• by pumping or use of influent flow-splitting weir.
• Declining-rate filtration
• Rate of flow declines as the rate of head loss builds
(influent- or effluent-controlled).
21. Periodic Summary:
• Drinking water treatment typically include clarification,
filtration and disinfection.
• Drinking water treatment should make water both potable
and palatable.
• Wastewater and drinking water treatment processes are
similar in several ways.
23. Types of disinfection:
• Physical disinfection techniques include boiling and
irradiation with ultraviolet light.
• Chemical disinfection techniques include adding
chlorine, bromine, iodine, and ozone to water.
24. Physical disinfection
• Boiling kills vegetative bacterial cells, but spores, viruses,
and some protozoa may survive long periods of boiling.
• Boiling is prohibitively expensive for large quantities of
water.
25. Physical disinfection
(UV radiation):
• Ultraviolet radiation is an effective and relatively safe
disinfection method, but is relatively expensive and
not widely used.
• UV light disrupts DNA of microbial cells, preventing
reproduction.
• Specific wavelengths, intensities, distances, flow rates,
and retention times are required.
26. Chemical disinfection:
• Chemicals added to water for disinfection include chlorine,
bromine, and iodine.
• Bromine is not recommended for drinking water
disinfection, but may be used for pool water.
• Iodine is sometimes used for drinking water disinfection,
but causes a bad aftertaste.
27. Chlorine disinfection:
• Chlorination is a cheap, effective, relatively harmless
(and therefore most popular) disinfection method.
• Chlorine is added as a gas or hypochlorite solution.
• Hypochlorous acid and hypochlorite ions form in
solution, which are strong chemical oxidants, and kill
microbes.
28. Chlorine disinfection (cont.):
• Combined chlorine is the proportion that combines with
organic matter.
• Free chlorine is the amount that remains to kill microbes in
the distribution system (0.5 ppm, 10 min.)
• Total chlorine is the combined concen-tration of combined
and free chlorine.
29. Ozonation:
• Ozone (O3) is an effective, relatively harmless
disinfection method, but is expensive (and therefore
less popular than chlorine).
• Ozone is a strong oxidant, that produces hydroxyl
free radicals that react with organic and inorganic
molecules in water to kill microbes.
30. Summary:
• Disinfection is the destruction of microorganisms in
drinking water to safe levels.
• Disinfection techniques include physical (boiling,
ultraviolet light) and chemical methods (chlorine,
bromine, iodine, and ozone).