Session One: Introduction; Public Water Systems; Hydrologic Cycle; Source Water Assessment; Wellhead Protection & Operations
Source : https://www.epa.gov/
Only logged in customers who have purchased this product may leave a review.
Related products
Aerogel & Iron-Oxide Impregnated Granular Activated Carbon Media For Arsenic Removal
The goal of this project is to validate proof-of-concept testing for iron enriched granular activated carbon (GAC) composites (aerogel-GAC or iron-oxide impregnated) as a viable adsorbent for removing arsenic from groundwater and conduct technical and economic feasibility assessments for these innovative processes. Specific project objectives include: • Conduct batch experiments for aerogel-GAC and Fe-oxide impregnated GAC composites to evaluate their performance removing arsenic.
• Evaluate Fe-GAC media performance in rapid small scale column tests (RSSCTs) to assess arsenic removal in a more dynamic treatment system.
• Evaluate Fe-GAC potential for removal of other contaminants (e.g., methyl tertiary butyl ether, dissolved organic carbon).
• Characterize Fe-GAC media.
• Correlate performance and media characterization for possible selection of two media for a future second phase of this project.
Aerogel & Iron-Oxide Impregnated Granular Activated Carbon Media For Arsenic Removal
The goal of this project is to validate proof-of-concept testing for iron enriched granular activated carbon (GAC) composites (aerogel-GAC or iron-oxide impregnated) as a viable adsorbent for removing arsenic from groundwater and conduct technical and economic feasibility assessments for these innovative processes. Specific project objectives include: • Conduct batch experiments for aerogel-GAC and Fe-oxide impregnated GAC composites to evaluate their performance removing arsenic.
• Evaluate Fe-GAC media performance in rapid small scale column tests (RSSCTs) to assess arsenic removal in a more dynamic treatment system.
• Evaluate Fe-GAC potential for removal of other contaminants (e.g., methyl tertiary butyl ether, dissolved organic carbon).
• Characterize Fe-GAC media.
• Correlate performance and media characterization for possible selection of two media for a future second phase of this project.
Best Practices Manual for Small Drinking Water Systems
New regulations pursuant to The Drinking Water Safety Act, administered by the Office of Drinking Water, resulted in changes to the approval, licensing, monitoring, record-keeping and reporting requirements for drinking water systems in Manitoba. It is recognized that many small drinking water systems may not have the same level of access to technical services and resources as larger public water systems. This manual of best practices (a comprehensive, integrated and co-operative approach to continuous improvement of all facets of operations for delivering superior standards of performance) is to assist small drinking water systems with regulatory, management and operational challenges.
Best Practices Manual for Small Drinking Water Systems
New regulations pursuant to The Drinking Water Safety Act, administered by the Office of Drinking Water, resulted in changes to the approval, licensing, monitoring, record-keeping and reporting requirements for drinking water systems in Manitoba. It is recognized that many small drinking water systems may not have the same level of access to technical services and resources as larger public water systems. This manual of best practices (a comprehensive, integrated and co-operative approach to continuous improvement of all facets of operations for delivering superior standards of performance) is to assist small drinking water systems with regulatory, management and operational challenges.
Recommended Standards for Water Works
A Report of the Water Supply Committee of the Great Lakes--Upper Mississippi River Board
of State and Provincial Public Health and Environmental Managers
Recommended Standards for Water Works
A Report of the Water Supply Committee of the Great Lakes--Upper Mississippi River Board
of State and Provincial Public Health and Environmental Managers
Package Plants For Drinking Water Treatment
In efforts to make package plants more compact, affordable and easier to operate and maintain, it has been noted that the design and performance of some of these plants containing conventional treatment processes is sometimes compromised if technical expertise in this regard is lacking. Generally, there are several risks associated with poorly designed treatment systems, including loss of production, poor safety and compromised equipment and process unit efficiency with associated higher operating and maintenance costs. These risks have more severe consequences in the case of desalination (including water reclamation and water re-use) package plants. The objective of this project is to develop a set of guidelines to assist municipalities, water treatment practitioners, designers and package plant manufacturers in the specification and design of appropriate unit processes and operating parameters to fit the influent water quality, operating environment and other special treatment requirements.
Package Plants For Drinking Water Treatment
In efforts to make package plants more compact, affordable and easier to operate and maintain, it has been noted that the design and performance of some of these plants containing conventional treatment processes is sometimes compromised if technical expertise in this regard is lacking. Generally, there are several risks associated with poorly designed treatment systems, including loss of production, poor safety and compromised equipment and process unit efficiency with associated higher operating and maintenance costs. These risks have more severe consequences in the case of desalination (including water reclamation and water re-use) package plants. The objective of this project is to develop a set of guidelines to assist municipalities, water treatment practitioners, designers and package plant manufacturers in the specification and design of appropriate unit processes and operating parameters to fit the influent water quality, operating environment and other special treatment requirements.
Inorganic Contaminant Removal
The 2006 version of the Pa. DEP Inorganic Contaminant Removal module has detailed advanced treatment information on this topic and can be obtained by e-mailing the Pa. DEP Safe Drinking Water Training Section at DEPWSTechtrain@pa.gov to request a copy. This advanced module has additional information on the removal of various inorganic contaminants as well as on oxidation, ion exchange, activated alumina and sequestration. The 2006 document also includes more detailed information on the inorganic contaminant treatments of GAC (granular activated carbon), coagulation/filtration, membranes, and lime softening. It includes the following information:
- Inorganic contaminant treatment selection considerations
- Advanced inorganic contaminant removal chemistry terminology
- Advanced inorganic contaminant removal chemistry explanations
- Conventional filtration and how it relates to inorganic removal
- Detailed information on treatments for iron and manganese removal
- Detailed information on treatments for hardness removal
- Detailed information on inorganic contaminant monitoring protocols
- Detailed tables on the following topics:
- Sources of 26 inorganic contaminants
- Common secondary standards with effects, inorganic contributors and indications
- Various treatment technology options to consider for 24 inorganic contaminants
- Potential forms of iron and manganese
- Iron and manganese sampling procedures
- Iron and manganese oxidant selection criteria
- Iron and manganese theoretical (initial) dosing criteria
- Potential treatments for less common inorganics
- Potential treatments for miscellaneous trace metals
Inorganic Contaminant Removal
The 2006 version of the Pa. DEP Inorganic Contaminant Removal module has detailed advanced treatment information on this topic and can be obtained by e-mailing the Pa. DEP Safe Drinking Water Training Section at DEPWSTechtrain@pa.gov to request a copy. This advanced module has additional information on the removal of various inorganic contaminants as well as on oxidation, ion exchange, activated alumina and sequestration. The 2006 document also includes more detailed information on the inorganic contaminant treatments of GAC (granular activated carbon), coagulation/filtration, membranes, and lime softening. It includes the following information:
- Inorganic contaminant treatment selection considerations
- Advanced inorganic contaminant removal chemistry terminology
- Advanced inorganic contaminant removal chemistry explanations
- Conventional filtration and how it relates to inorganic removal
- Detailed information on treatments for iron and manganese removal
- Detailed information on treatments for hardness removal
- Detailed information on inorganic contaminant monitoring protocols
- Detailed tables on the following topics:
- Sources of 26 inorganic contaminants
- Common secondary standards with effects, inorganic contributors and indications
- Various treatment technology options to consider for 24 inorganic contaminants
- Potential forms of iron and manganese
- Iron and manganese sampling procedures
- Iron and manganese oxidant selection criteria
- Iron and manganese theoretical (initial) dosing criteria
- Potential treatments for less common inorganics
- Potential treatments for miscellaneous trace metals
Adsorbent Material Used In Water Treatment-A Review
Adsorption method of purify water relies mainly on the adsorbent to adsorb the impurities in the water, this paper introduces the latest research progress both at home and abroad, such as activated carbon, chitosan, zeolites, clay minerals plant-based, industrial waste . These adsorbent type will play a more and more important role in water treatment in the future.
Adsorbent Material Used In Water Treatment-A Review
Adsorption method of purify water relies mainly on the adsorbent to adsorb the impurities in the water, this paper introduces the latest research progress both at home and abroad, such as activated carbon, chitosan, zeolites, clay minerals plant-based, industrial waste . These adsorbent type will play a more and more important role in water treatment in the future.
Analysis of the Membrane Alternatives Suitable for Kvarnagården Water Treatment Plant.
In this study surveys to membrane manufacturers and water treatment plants regarding the performance of different membrane alternatives have been carried out from January to April 2012. The work has been done as a part of a study of the different membrane alternatives suitable for Kvarnagården Water Treatment Plant. Also in the study experiments regarding water quality parameters have been carried out at the water laboratory at Chalmers University of Technology. The project is carried out at the Department of Civil and Environmental Engineering and is connected to the company VIVAB, the company in charge of Kvarnagården Water Treatment Plant.
Analysis of the Membrane Alternatives Suitable for Kvarnagården Water Treatment Plant.
In this study surveys to membrane manufacturers and water treatment plants regarding the performance of different membrane alternatives have been carried out from January to April 2012. The work has been done as a part of a study of the different membrane alternatives suitable for Kvarnagården Water Treatment Plant. Also in the study experiments regarding water quality parameters have been carried out at the water laboratory at Chalmers University of Technology. The project is carried out at the Department of Civil and Environmental Engineering and is connected to the company VIVAB, the company in charge of Kvarnagården Water Treatment Plant.
Arsenic Removal From Drinking Water By Advanced Filtration Processes
All over the world the presence of arsenic in water sources for human consumption has been raising great concern in terms of public health since many epidemiologic studies confirm the potential carcinogenic effect of arsenic. Because arsenic removal is the most frequent option for safe drinking water, the development of more efficient and sustainable technologies is extremely important. Membrane separation processes are suitable for water treatment because they can provide an absolute barrier for bacteria and viruses, besides removing turbidity and colour. Their application is a promising technology in arsenic removal since it does not require the addition of chemical reagents nor the preliminary oxidation of arsenite required in conventional treatment options. However, since membrane technologies such as reverse osmosis can be a very expensive and unsustainable treatment option for small water supply
systems, it becomes crucial that alternative methods are developed. This work presents a few conclusions based on a laboratorial study performed to evaluate the efficiency of arsenic removal using ultrafiltration, microfiltration and solar oxidation processes under different experimental conditions for relevant parameters. The results showed removal efficiencies higher than 90%. Key-words: safe drinking water, arsenic removal, membranes, public health.
Arsenic Removal From Drinking Water By Advanced Filtration Processes
All over the world the presence of arsenic in water sources for human consumption has been raising great concern in terms of public health since many epidemiologic studies confirm the potential carcinogenic effect of arsenic. Because arsenic removal is the most frequent option for safe drinking water, the development of more efficient and sustainable technologies is extremely important. Membrane separation processes are suitable for water treatment because they can provide an absolute barrier for bacteria and viruses, besides removing turbidity and colour. Their application is a promising technology in arsenic removal since it does not require the addition of chemical reagents nor the preliminary oxidation of arsenite required in conventional treatment options. However, since membrane technologies such as reverse osmosis can be a very expensive and unsustainable treatment option for small water supply
systems, it becomes crucial that alternative methods are developed. This work presents a few conclusions based on a laboratorial study performed to evaluate the efficiency of arsenic removal using ultrafiltration, microfiltration and solar oxidation processes under different experimental conditions for relevant parameters. The results showed removal efficiencies higher than 90%. Key-words: safe drinking water, arsenic removal, membranes, public health.
Advancing Water, Sanitation and Hygiene (WASH) in Panchayats
Access to safe drinking water is critical to survival, and its deprivation could affect the health, food security, and livelihoods of human beings. India achieved 93% coverage of access to improved water supply in rural areas in 2015 towards fulfilling its commitment under the Millennium Development Goal1. However, with reference to safely managed drinking water (improved water supply located on-premises, available when needed and free of contamination) as per Sustainable Development Goal, India still has major targets to achieve, and is geared up to accomplish the same by the end of 2024. With the shift from the Millennium Development Goals (MDGs) to the Sustainable Development Goals (SDGs) less than half of the total rural households in the country have access to safely managed drinking water (improved water supply located on-premises, available when needed and free of contamination).
Advancing Water, Sanitation and Hygiene (WASH) in Panchayats
Access to safe drinking water is critical to survival, and its deprivation could affect the health, food security, and livelihoods of human beings. India achieved 93% coverage of access to improved water supply in rural areas in 2015 towards fulfilling its commitment under the Millennium Development Goal1. However, with reference to safely managed drinking water (improved water supply located on-premises, available when needed and free of contamination) as per Sustainable Development Goal, India still has major targets to achieve, and is geared up to accomplish the same by the end of 2024. With the shift from the Millennium Development Goals (MDGs) to the Sustainable Development Goals (SDGs) less than half of the total rural households in the country have access to safely managed drinking water (improved water supply located on-premises, available when needed and free of contamination).
Appropriate Technologies For Drinking Water Treatment In Mediterranean Countries
This paper aims at analyzing the drinking water issue in the Mediterranean region, highlighting the principal problems and the appropriate technologies applicable in the different countries. The countries of this area are characterized by a huge variety from social, cultural, economic and environmental point of view. In particular, water distribution is inhomogeneous between the North, East, and South; even the type of water sources and the related quantity and quality problems differ country by country. Potable water comes from brackish and seawater, surface water, groundwater and water reservoirs with each source face different issues. The main problem of brackish and seawater for example is the high salinity and the contamination by disinfection byproducts, in addition to the microbiological and chemical contamination due to human activities that characterize also other surface water sources. Groundwater is also affected by human activity and it is not exempted from salinity because of the water intrusion. Moreover, water reservoirs are often contaminated by seasonal algal blooms. Technologies applied for drinking water treatment vary country by country. The paper presents the main treatment processes
associated with the main water pollutants, according to the Mediterranean region. Case studies of drinking water treatment plants are also analyzed, presenting alternative technologies appropriate for specific contexts, among others. The characteristics of each specific context should be carefully analyzed in order to develop the most appropriate technologies; high-end technologies for drinking water treatment may not be applied equally to all countries or communities of the Mediterranean region.
Appropriate Technologies For Drinking Water Treatment In Mediterranean Countries
This paper aims at analyzing the drinking water issue in the Mediterranean region, highlighting the principal problems and the appropriate technologies applicable in the different countries. The countries of this area are characterized by a huge variety from social, cultural, economic and environmental point of view. In particular, water distribution is inhomogeneous between the North, East, and South; even the type of water sources and the related quantity and quality problems differ country by country. Potable water comes from brackish and seawater, surface water, groundwater and water reservoirs with each source face different issues. The main problem of brackish and seawater for example is the high salinity and the contamination by disinfection byproducts, in addition to the microbiological and chemical contamination due to human activities that characterize also other surface water sources. Groundwater is also affected by human activity and it is not exempted from salinity because of the water intrusion. Moreover, water reservoirs are often contaminated by seasonal algal blooms. Technologies applied for drinking water treatment vary country by country. The paper presents the main treatment processes
associated with the main water pollutants, according to the Mediterranean region. Case studies of drinking water treatment plants are also analyzed, presenting alternative technologies appropriate for specific contexts, among others. The characteristics of each specific context should be carefully analyzed in order to develop the most appropriate technologies; high-end technologies for drinking water treatment may not be applied equally to all countries or communities of the Mediterranean region.
A Large Review of the Pre Treatment
Introduction:
Desalination using seawater reverse osmosis (SWRO) technology is an important option available to water-scarce coastal regions. Worldwide sea water desalination is a very effective and economical way of producing potable water for drinking and industries. Reverse osmosis plants to convert sea water to potable drinking water and for other usages have been prevalent throughout the world for more than 4 decades. Design and operation of seawater reverse osmosis plants strongly depend on the raw seawater quality to be treated. The performance of desalination reverse osmosis (RO) systems relies upon the production of high quality pre treated water, and the selection of the best pre treatment technology depends on the raw seawater quality and its variations. Number of full-scale experiences has shown that pre treatment is the key for this application of reverse osmosis technology. It is why during these last years, an import effort has been done to identify and to characterise the diverse organic and mineral components present in the seawater in a view to optimise the seawater pre-treatment and to develop advanced analytical methods for feed water characterization, appropriate fouling indicators and prediction tools. This Chapter describes firstly a comprehensive approach to characterize raw seawater samples through analytical tools which allow the knowledge of the characterization of seawater from many aspects: (a) inorganic content, (b) natural organic matter, (c) enumeration of micro-organisms and phytoplankton. Secondly, this Chapter describes the effect of each of these parameters on the fouling of the reverse osmosis membrane. Finally, this chapter describes the different possible pre treatments available to reduce or remove the elements or substances up-stream reverse osmosis stage.
A Large Review of the Pre Treatment
Introduction:
Desalination using seawater reverse osmosis (SWRO) technology is an important option available to water-scarce coastal regions. Worldwide sea water desalination is a very effective and economical way of producing potable water for drinking and industries. Reverse osmosis plants to convert sea water to potable drinking water and for other usages have been prevalent throughout the world for more than 4 decades. Design and operation of seawater reverse osmosis plants strongly depend on the raw seawater quality to be treated. The performance of desalination reverse osmosis (RO) systems relies upon the production of high quality pre treated water, and the selection of the best pre treatment technology depends on the raw seawater quality and its variations. Number of full-scale experiences has shown that pre treatment is the key for this application of reverse osmosis technology. It is why during these last years, an import effort has been done to identify and to characterise the diverse organic and mineral components present in the seawater in a view to optimise the seawater pre-treatment and to develop advanced analytical methods for feed water characterization, appropriate fouling indicators and prediction tools. This Chapter describes firstly a comprehensive approach to characterize raw seawater samples through analytical tools which allow the knowledge of the characterization of seawater from many aspects: (a) inorganic content, (b) natural organic matter, (c) enumeration of micro-organisms and phytoplankton. Secondly, this Chapter describes the effect of each of these parameters on the fouling of the reverse osmosis membrane. Finally, this chapter describes the different possible pre treatments available to reduce or remove the elements or substances up-stream reverse osmosis stage.
Reviews
There are no reviews yet.