Nanotechnology-Enabled Water Treatment A Vision to Enable Decentralized Water Purification and Reuse
Nanotechnology-Enabled Water Treatment A Vision to Enable Decentralized Water Purification and Reuse
Source:https://www.rice.edu/
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Challenges of Treatment & Reuse of Industrial Wastewater in Developing Countries – Case of Kuwait
This presentation is about the management of industrial wastewater in one of the Gulf countries, Kuwait where some of the drawbacks for proper management of industrial wastewaters exist.
Challenges of Treatment & Reuse of Industrial Wastewater in Developing Countries – Case of Kuwait
This presentation is about the management of industrial wastewater in one of the Gulf countries, Kuwait where some of the drawbacks for proper management of industrial wastewaters exist.
Guidelines for Water Reuse and Recycling in Victorian Health Care Facilities
Security and quality of water supply is vital for a number of key processes within health care facilities (HCF), such as hospitals, aged care facilities, medical centres and mental health facilities. Many HCF however consume large volumes of potable water and as the population of Victoria continues to grow and climate change reduces inflows to traditional water storages increased pressure is placed on potable water supplies. As such there is a need for HCF to consider ways to reduce their reliance on reticulated potable water through conservation or augmentation with alternative water supplies for non-drinking applications. Augmentation can be achieved through either alternative water supplies such as rainwater, onsite reuse (direct use of water for the same or
another function without the need for treatment) or recycling (treatment of water) of water sources. Community benefits to such an approach include both reduced potable water consumption and reduced trade waste discharge.
Guidelines for Water Reuse and Recycling in Victorian Health Care Facilities
Security and quality of water supply is vital for a number of key processes within health care facilities (HCF), such as hospitals, aged care facilities, medical centres and mental health facilities. Many HCF however consume large volumes of potable water and as the population of Victoria continues to grow and climate change reduces inflows to traditional water storages increased pressure is placed on potable water supplies. As such there is a need for HCF to consider ways to reduce their reliance on reticulated potable water through conservation or augmentation with alternative water supplies for non-drinking applications. Augmentation can be achieved through either alternative water supplies such as rainwater, onsite reuse (direct use of water for the same or
another function without the need for treatment) or recycling (treatment of water) of water sources. Community benefits to such an approach include both reduced potable water consumption and reduced trade waste discharge.
Nanofiltration and Reverse Osmosis Applied to Gold Mining Effluent Treatment and Reuse
Abstract:
Gold mining and ore processing are activities of great economic importance. However, they are related to generation of extremely polluted effluents containing high concentrations of heavy metals and low pH. This study aims to evaluate the optimal conditions for gold mining effluent treatment by crossflow membrane filtration regarding the following variables: nanofiltration (NF) and reverse osmosis (RO) membrane types, feed pH and permeate recovery rate. It was observed that retention efficiencies of NF90 were similar to those of RO membranes though permeate fluxes obtained were 7-fold higher. The optimum pH value was found to be 5.0, which resulted in higher permeate flux and lower fouling formation. At a recovery rate above 40% there was a significant decrease in permeate quality, so this was chosen as the maximum recovery rate for the proposed system. We conclude that NF is a suitable treatment for gold mining effluent at an estimated cost of US$ 0.83/m³.
Keywords: Gold mining effluent treatment; Nanofiltration (NF); Reverse Osmosis (RO); Feed pH; Permeate recovery rate.
Nanofiltration and Reverse Osmosis Applied to Gold Mining Effluent Treatment and Reuse
Abstract:
Gold mining and ore processing are activities of great economic importance. However, they are related to generation of extremely polluted effluents containing high concentrations of heavy metals and low pH. This study aims to evaluate the optimal conditions for gold mining effluent treatment by crossflow membrane filtration regarding the following variables: nanofiltration (NF) and reverse osmosis (RO) membrane types, feed pH and permeate recovery rate. It was observed that retention efficiencies of NF90 were similar to those of RO membranes though permeate fluxes obtained were 7-fold higher. The optimum pH value was found to be 5.0, which resulted in higher permeate flux and lower fouling formation. At a recovery rate above 40% there was a significant decrease in permeate quality, so this was chosen as the maximum recovery rate for the proposed system. We conclude that NF is a suitable treatment for gold mining effluent at an estimated cost of US$ 0.83/m³.
Keywords: Gold mining effluent treatment; Nanofiltration (NF); Reverse Osmosis (RO); Feed pH; Permeate recovery rate.
Integrated Water Resources Management
INTRODUCTION
Challenges require IWRM; Challenges faced by more and more countries in their struggle for economic and social development are increasingly related to water. Water shortages, quality deterioration and flood impacts are among the problems which require greater attention and action. Integrated Water Resources Management (IWRM) is a process which can assist countries in their endeavour to deal with water issues in a cost-effective and sustainable way. The concept of IWRM has attracted particular attention following the international conferences on water and environmental issues in Dublin and Rio de Janeiro held during 1992; however IWRM has neither been unambiguously defined nor has the question of how it is to be implemented been fully addressed. What has to be integrated
and how is it best done? Can the agreed broad principles for IWRM be operationalized in practice – and, if so, how?
Integrated Water Resources Management
INTRODUCTION
Challenges require IWRM; Challenges faced by more and more countries in their struggle for economic and social development are increasingly related to water. Water shortages, quality deterioration and flood impacts are among the problems which require greater attention and action. Integrated Water Resources Management (IWRM) is a process which can assist countries in their endeavour to deal with water issues in a cost-effective and sustainable way. The concept of IWRM has attracted particular attention following the international conferences on water and environmental issues in Dublin and Rio de Janeiro held during 1992; however IWRM has neither been unambiguously defined nor has the question of how it is to be implemented been fully addressed. What has to be integrated
and how is it best done? Can the agreed broad principles for IWRM be operationalized in practice – and, if so, how?
Industrial Wastewater Reuse Technologies
Presentation Outline
Technologies which can be applied to wastewater reuse.
Understand how the wastewater is to be reused.
The source and characteristics of the wastewater to be reused
Alternatives sources for wastewater which can be reused.
Common reuse application and technologies.
Reusing wastewater does not mean the waste “Goes Away”.
Understanding the limitations of reuse technologies.
Piloting and bench scale studies.
Industrial Wastewater Reuse Technologies
Presentation Outline
Technologies which can be applied to wastewater reuse.
Understand how the wastewater is to be reused.
The source and characteristics of the wastewater to be reused
Alternatives sources for wastewater which can be reused.
Common reuse application and technologies.
Reusing wastewater does not mean the waste “Goes Away”.
Understanding the limitations of reuse technologies.
Piloting and bench scale studies.
A Water Reuse Policy Perspective
To advance the beneficial and efficient uses of high-quality, locally produced, sustainable water sources for the betterment of society and the environment through advocacy, education and outreach, research, and membership.
A Water Reuse Policy Perspective
To advance the beneficial and efficient uses of high-quality, locally produced, sustainable water sources for the betterment of society and the environment through advocacy, education and outreach, research, and membership.
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