Water and sewage systems for future cities. Cases: New York and BangaloreHabitatNorway
Infrastructure 2013: Water
Presentation from the first 'Infrastructure 2013' evening seminar on access to clean water and water managment in growing cities. Seminar held in Oslo 20 March 2013.
Vann og avløpsløsninger i fremtidens byer. Case Bangalore/New York
Petter D Jenssen, Universitetet for Miljø og Biovitenskap (UMB)Association for International Water Studies)
Citrone Redox Presention Water Setc 2011 03GeneCitrone
Recycled results based on Marcellus Shale Frac flowback water.
• Presentation, speaker, Water Resource Panel, August 2011, ShaleTech, Shale Energy Technology Conference, Houston, TX
Water and sewage systems for future cities. Cases: New York and BangaloreHabitatNorway
Infrastructure 2013: Water
Presentation from the first 'Infrastructure 2013' evening seminar on access to clean water and water managment in growing cities. Seminar held in Oslo 20 March 2013.
Vann og avløpsløsninger i fremtidens byer. Case Bangalore/New York
Petter D Jenssen, Universitetet for Miljø og Biovitenskap (UMB)Association for International Water Studies)
Citrone Redox Presention Water Setc 2011 03GeneCitrone
Recycled results based on Marcellus Shale Frac flowback water.
• Presentation, speaker, Water Resource Panel, August 2011, ShaleTech, Shale Energy Technology Conference, Houston, TX
There is an intrinsic connection between biodiversity conservation, water and sanitation. With appropriate technologies, wastewater can be treated to produce fit-for-purpose water with recovery of nutrients to enhance biodiversity conservation in terms of flora and fauna. This project highlights a pilot subsurface flow Constructed Wetland unit in order to identify its performance in treating domestic wastewater and in recovering nutrients.
The project won the 1st Prize in National Quarry Life Award in 2012 in Tanzania.
Read more: http://www.quarrylifeaward.com/project/integrated-constructed-wetland-wastewater-treatment-rainwater-harvesting-nutrient-recovery
Progress on Pit Foam - Dr. Steve Hoff, Iowa State University, from the 2013 Iowa Pork Congress, January 23-24, Des Moines, IA, USA.
More presentations at http://www.swinecast.com/2013-iowa-pork-congress
There is an intrinsic connection between biodiversity conservation, water and sanitation. With appropriate technologies, wastewater can be treated to produce fit-for-purpose water with recovery of nutrients to enhance biodiversity conservation in terms of flora and fauna. This project highlights a pilot subsurface flow Constructed Wetland unit in order to identify its performance in treating domestic wastewater and in recovering nutrients.
The project won the 1st Prize in National Quarry Life Award in 2012 in Tanzania.
Read more: http://www.quarrylifeaward.com/project/integrated-constructed-wetland-wastewater-treatment-rainwater-harvesting-nutrient-recovery
Progress on Pit Foam - Dr. Steve Hoff, Iowa State University, from the 2013 Iowa Pork Congress, January 23-24, Des Moines, IA, USA.
More presentations at http://www.swinecast.com/2013-iowa-pork-congress
NOT UPDATED PRESENTATION: To view updated version, please visit ISSUU, SCRIBD, YUMPU, and do the same presentation title search or use search engine. Slideshare does not allow file update at this time. - THANK YOU.
સુધારાશે નહીં: સુધારાયેલ સંસ્કરણ જોવા માટે, કૃપા કરીને ISSUU, SCRIBD, YUMPU ની મુલાકાત લો, અને સમાન પ્રસ્તુતિ શીર્ષક શોધ કરો અથવા શોધ એંજિનનો ઉપયોગ કરો. સ્લાઇડશૉરે આ સમયે ફાઇલ અપડેટ કરવાની મંજૂરી આપતી નથી. - આભાર.
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Across industries and science fields, previously not accepted technologies, some of which has been widely used for commercialized applications, are gradually being re-confirmed by mainstream Western academics. The next phase is how Western mainstream media of various levels(from news, science reports, to Wikipedia) are going to express these confirmations.
ENA via Groundwater Circulation Well (IEG-GCW®)Eduard J. Alesi
First Pilot Test on the Integration of GCW (Groundwater
Circulation Well) with ENA (Enhanced Natural Attenuation) for
Chlorinated Solvents Source Remediation.
OUTDATED PRESENTATION: To view updated version, please visit ISSUU, SCRIBD, YUMPU, and do the same presentation title search or use search engine. Slideshare does not allow file update at this time. - THANK YOU.
ΔΕΝ ΕΝΗΜΕΡΩΜΕΝΗ ΠΑΡΟΥΣΙΑΣΗ: Για να δείτε την ενημερωμένη έκδοση, επισκεφτείτε το ISSUU, το SCRIBD, το YUMPU και κάντε την ίδια αναζήτηση τίτλου παρουσίασης ή χρησιμοποιήστε τη μηχανή αναζήτησης. Το Slideshare δεν επιτρέπει την ενημέρωση αρχείων αυτή τη στιγμή. - ΕΥΧΑΡΙΣΤΩ.
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Four Levels of Clean, Low Cost, Underexplored Water Tech for Industrial, Commercial, & Farming applications.
Φιλική προς το περιβάλλον, οικονομική, αποτελεσματική καθαρή τεχνολογία νερού για αυτό θα αλλάξει ο μελλοντικός κόσμος (ελληνική περίληψη)
Environmentally Friendly, Economical, Effective Water Cleantech for The Future.
ASSESSMENT OF WASTE WATER TREATMENT IN CANAANLAND, OTA, OGUN STATE, NIGERIA.O...Felix Oginni
Effluent from a sewage treatment plant in Covenant University, Canaanland is made to pass through a series of constructed wetland before discharging into a gully that drains into River Iju (also known as Atuara). This river is used as a source of drinking water and also provides food in form of fish for hundreds of thousands of people downstream and eventually enters the lagoon, some 60km away. Effectiveness and adequacy of the wastewater treatment facility in place was assessed in order to improve sanitation within this watershed, thereby alleviating environmental challenges in this coastal region of Nigeria. Waste water is gravity drained to the southwest portion of the campus where the solid is removed and the liquid is allowed to flow through six sets of constructed wetlands, each with four chambers. Within each chamber are water hyacinth plants put in place to remove nutrients from the waster water.
A quick survey of the facility shows the system to be effective in reducing and removing solids and dissolved solids from the waste water. The pH ranged between 6.6 and 6.8, conductivity from 530 to 600, and total dissolved solids (TDS) ranged from 360 – 400 ppm. The data obtained indicate that some modifications need to be made as the waste water treatment system is not very efficient in reducing the amount of TDS and nutrients. The flow rate is considered to be very high from cell to cell, thereby not allowing time for the plants and microbes to reduce the TDS. It is suggested that some method be devised to slow down the flow rate to allow the plants and microbes to work on reducing the TDS. Parameters also also considered included DO, E. Coli. Nitrate and Phosphates.
The Total Petroleum Hydrocarbon (TPH) in the bottom sediments and aquatic macrophytes of the River Nun at AmasomaAxises was investigated in December, 2017. This was done to establish the existing levels of TPH in the River in order to ascertain the degree of its threat to the environment. Benthic samples were collected close to the shore with the aid of a hand trowel and put in aluminum foils, while macrophyte samples were collected by hand pulling and transported in plastic bags for laboratory analysis. Data were subjected to statistical analysis using the Microsoft Excell® tool pack. Regression analysis was employed in order to determine the correlation between TPH in bottom sediments with that in plant tissues (leaf, stem and root). Analysis of variance was employed at the 95% confidence level to determine the degree of significance in interaction of TPH between sediments and macrophyte tissues and between macrophyte tissues (leaf, stem, and root). Duncan multiple range test was use to compare means. The bioaccumulation factor (BAF) was calculated for TPH in order to estimate the absorption rate of TPH between sediments and plant tissues (leaf, stem and root). Results indicate that TPH were recorded in sediments and plant tissues. TPH concentrations were greater in plant tissues than in sediments. Concentration of TPH showed concentrations indicating that root> stem> leaf in most stations. The relationships between the TPH attributes indicated strong association between Leaves and stem (r2 = 0.92). Strong negative association was also observed between sediment and stem (r2 = -0.83) while sediment and leaves (r2 = -0.64) had moderate negative relationship. It can be concluded that the River Nun at AmasomaAxises is mildly polluted due to land based activities and therefore there is a need to enact water use regulatory ordinances to protect its ecology. Sediment organisms and plants are vital links to man in the food chain. This may portend danger in the future.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Dr. Menachem Elimelech - Water Technologies to Solve Increasing Global Water Scarcity
1. Science and Technology for
Sustainable Water Supply
Menachem Elimelech
Department of Chemical Engineering
Environmental Engineering Program
Yale U i
Y l University
it
Seminar, University of Oklahoma, February 20,
2009
2. The “Top 10” Global Challenges
for the New Millennium
1.
1 Energy
2. Water
3. Food
4. Environment
5. Poverty
6. Terrorism and W
T i d War
7. Disease
8.
8 Education Richard E Smalley Nobel
E. Smalley,
9. Democracy Laureate, Chemistry, 1996,
10. Population MRS Bulletin, June 2005
4. Regional and Temporal Water
Scarcity
S it
National Oceanic and Atmospheric Administration
5. How Do We Increase the Amount
of Water Available to People?
Water conservation repair of infrastructure
conservation, infrastructure,
and improved catchment and distribution
systems ― improve use not increasing
use,
supply!
Increase water supplies t gain new waters
I t li to i t
can only be achieved by:
Reuse of wastewater
R f t t
Desalination of brackish and sea waters
6. Many Opportunities
We are far from the thermodynamic limits for
separating unwanted species f
ti t d i from water
t
Traditional methods are chemically and
y
energetically intensive, relatively expensive,
and not suitable for most of the world
New systems based on nanotechnology can
dramatically alter the energy/water nexus
y gy
9. Reclaimed Wastewater in
Singapore (NEWater)
Source of water
supply f
l for
commercial and
industrial sectors
(10% of water
demand)
4 NEWater p a ts
ate plants
supplying 50 mgd
of NEWater.
Will meet 15% of
5 miles
water demand by
2011
10. Reuse of Wastewater in Orange
County,
County California
www.gwrsystem.com Groundwater Replenishment
System (70 MG/day))
Prado
Dam
Santa Ana River Facilities
11. GWR System for Advanced Water
Purification (Orange County)
Microfiltration Reverse Ultraviolet
(MF) Osmosis Light with
(RO) H2O2
OCSD
Secondary
WW Recharge
Effluent Basins
14. Windhoek’s Solution: Wastewater
Reclamation for Direct Potable Use
Goreangab Reclamation Plant (Windhoek)
“Water should not be
Water
judged by its history,
but by its quality.”
y q y
Dr. Lucas Van Vuuren
National Institute of Water
Research, S th Af i
R h South Africa
The only wastewater reclamation plant
y
in the world for direct potable use
16. Most Important: Public Acceptance
and T
d Trust i the Q li of W
in h Quality f Water
Breaking down th psychological b i (th
B ki d the h l i l barrier (the
“yuck factor”) is not trivial
– Ri
Rigorous monitoring of water quality after every
it i f t lit ft
process step
– Final product water is thoroughly analyzed (data
made available to public)
The citizens of Windhoek have a genuine
pride in the reality that their city leads the
world in direct water reclamation
17. Wastewater Reuse: Membrane
Bioreactor (MBR)-RO System
Shannon, Bohn, Elimelech, Georgiadis, and Mayes, Nature 452 (2008) 301-310.
18. Fouling Resistant UF Membranes:
Comb (PAN-g-PEO) Additives
amphiphilic copolymer added
hi hili l dd d segregate & self-organize
t lf i
to casting solution at membrane surfaces
PEO brush
layer on
surface and
inside pores
Casting Doctor
Solution Blade Heat
Treatment
Fouling
Casting Solution
Coagulation
Doctor Blade
Heat Treatment
Bath
Coagulation Bath Bath
Resistance
Asatekin, Kang, Elimelech, Mayes, Journal of Membrane Science, 298 (2007) 136-146.
19. Fouling Reversibility (with
Organic Matter)
O )
White: Pure water
Whit P t
Gray: recovered flux
after fouling/cleaning
(following “physical”
cleaning (rinsing)
with no chemicals)
Shannon, Bohn, Elimelech, Georgiadis, and Mayes, Nature 452 (2008) 301-310.
20. AFM as a Tool to Optimize
Copolymer for Fouling Resistance
4
2
N/m)
0
F/R (mN
-2
-4 PAN (P0-0)
P50-5
-6 P50-10
P50 20
P50-20
-8
Kang, Asatekin, Mayes, Elimelech, Journal of Membrane Science, 296 (2007) 42-50.
24. Antifouling NF Membranes for
MBR (PVDF g POEM)
(PVDF-g-POEM)
Filtration of activated sludge from MBR
– PVDF-g-POEM NF: no flux loss over 16 h filtration
– PVDF base: 55% irreversible flux loss after 4 h
1.4
1.2
malized flux
1.0
0.8
PVDF-g-POEM (●,●)
0.6
Norm
PVDF base (• •)
(•,•)
0.4
0.2
0.0
0 12
Time (hours)
Asatekin, Menniti, Kang, Elimelech, Morgenroth, Mayes: J. Membr. Sci. 285 (2006) 81-89
25. MBR and the Sanitation Crisis in
D
Developing C
l i Countries
ti
1.1 billion people ⎯ or one
sixth of the world’s population
⎯ lack access to safe water
2.4 billion are without
adequate sanitation
Between 2 to 4 million deaths
a year are attributed to unsafe
water,
water mostly due to water
water-
borne preventable diarrheal
diseases
26. MBR as a Decentralized Sewage
Treatment Option
T t t O ti
Centralized sewage treatment (wastewater treatment
plants) is not realistic (long-term goal)
MBR may be ideal for localized, decentralized sewage
treatment in the developing world
Advantages: small footprint, flexible design, and
automated operation
32. Seawater Desalination
Augmenting and diversifying water supply
Reverse osmosis and thermal desalination
(MSF and MED) are the current desalination
technologies
Energy intensive (cost and environmental
impact)
Reverse osmosis is currently the leading
technology
33. Reverse Osmosis
Major improvements in the past 10 years
Further improvements are likely to be
incremental
Recovery limited to ~ 50%:
Brine discharge (
B i di h (environmental concerns)
i t l )
Increased cost of pre-treatment
Use prime (electric) energy (~ 2.5 kWh per
cubic meter of product water)
34. Minimum Energy of Desalination
Minimum energy needed to desalt water is
independent of the technology or mechanism of
desalination V 2
1
3.5
35 W= ∫Π dV
Minimum Energy (kW-h/m )
V1 − V2
3
os
O
3.0 100 C V1
O
25 C
2.5
25
(
2.0
Minimum theoretical energy
for desalination:
1.5
15
0% recovery: 0.7 kWh/m3
1.0
50% recovery: 1 kWh/m3
0.5
05
M
0 20 40 60 80 100
Percent Recovery
35. Nanotechnology May Result in
Breakthrough Technologies
“These nanotubes are so beautiful
that they must be useful for
something. . .”, Richard Smalley
(1943-2005).
36. Aligned Nanotubes as High Flux
Membranes for Desalination?
Hinds et al, “Aligned multi-walled carbon nanotube
membranes”, Science, 303, 2004.
37. Research on Nanotube Based
Membranes
Mauter and Elimelech,
Environ. Sci. Technol., 42
(16), 5843-5859, 2008.
38. Next Generation Nanotube
Membranes
M b
Mauter and Elimelech,
Elimelech
Environ. Sci. Technol., 42
(16), 5843-5859, 2008.
Single-walled carbon nanotubes (SWNTs) with a pore
size of ~ 0.5 nm are critical for salt rejection
Higher
Hi h nanotube d
t b density and purity
it d it
Large scale production?
39. Bio-inspired High Flux
Membranes for Desalination
Natural aquaporin proteins extracted from living
organisms can be incorporated into a lipid bilayer
membrane or a synthetic polymer matrix
40. BUT …. Energy is Needed Even for
Membranes with Infinite Permeability
Minimum theoretical
energy for desalination at
gy
50% recovery: 1 kWh/m3
Practical limitations: No
less than 1.5 kWh/m3
Achievable goal:
g
1.5 − 2 kWh/m3
Shannon, Bohn, Elimelech, Georgiadis, and Mayes, Nature 452 (2008) 301-310.
47. Concluding Remarks
g
We are far from the thermodynamic limits
y
for separating unwanted species from water
Nanotechnology and new materials can
significantly advance water purification
technologies
Advancing the science of water purification
g p
can aid in the development of robust, cost-
effective technologies appropriate for
g pp p
different regions of the world