Mitigation of Membrane Fouling in Microfiltration & Ultrafiltration of Activated Sludge Effluent for Water Reuse
Source:https://www.rmit.edu.au/
Author:Sy Thuy Nguyen
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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.
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• Resources for Decentralized Non-Resources Guidelines
• Case studies
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Decentralized Solutions for Non Potable water Reuse
• Decentralized alternatives
• Resources for Decentralized Non-Resources Guidelines
• Case studies
• Future possibilities
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Water issues touch all segments of society and all economic sectors. Population growth, rapid urbanisation and industrialisation, the expansion of agriculture and tourism, and climate change all put water under increasing stress. Given this growing pressure it is critical that this vital resource is properly managed.
A Handbook for Integrated Water Resources Management in Basins
Water issues touch all segments of society and all economic sectors. Population growth, rapid urbanisation and industrialisation, the expansion of agriculture and tourism, and climate change all put water under increasing stress. Given this growing pressure it is critical that this vital resource is properly managed.
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Potable water reuse systems, whether centralized or decentralized, need to provide consistent high-quality water produced from a multiple barrier treatment system. In the United States, potable reuse projects have successfully produced high-quality water from a range of treatment systems from about 1 million gallons per day (mgd) to more than 100 mgd. This project adds to the body of knowledge for demonstrated project successes as it addresses the challenges of operating and maintaining small and decentralized purification systems. Currently, SFPUC uses a constructed wetland system to treat the wastewater generated in its headquarters building for non-potable reuse. PureWaterSF added to the existing system a demonstration direct potable reuse (DPR) building-scale treatment process that included ultrafiltration, reverse osmosis, and an ultraviolet advanced oxidation process (UF/RO/UV AOP) to purify the tertiary recycled water effluent from the wetland system. The treatment train, which treats approximately 80 percent of the water from the wetland system, was designed to have a small footprint and produce high-quality water that is able to meet drinking water standards. The treated water is redirected to the non-potable reuse system for toilet flushing in the SFPUC headquarter building.
Building-Scale Treatment for Direct Potable Water Reuse and Intelligent Control for Real Time Performance Monitoring Project (Pure Water SF)
Potable water reuse systems, whether centralized or decentralized, need to provide consistent high-quality water produced from a multiple barrier treatment system. In the United States, potable reuse projects have successfully produced high-quality water from a range of treatment systems from about 1 million gallons per day (mgd) to more than 100 mgd. This project adds to the body of knowledge for demonstrated project successes as it addresses the challenges of operating and maintaining small and decentralized purification systems. Currently, SFPUC uses a constructed wetland system to treat the wastewater generated in its headquarters building for non-potable reuse. PureWaterSF added to the existing system a demonstration direct potable reuse (DPR) building-scale treatment process that included ultrafiltration, reverse osmosis, and an ultraviolet advanced oxidation process (UF/RO/UV AOP) to purify the tertiary recycled water effluent from the wetland system. The treatment train, which treats approximately 80 percent of the water from the wetland system, was designed to have a small footprint and produce high-quality water that is able to meet drinking water standards. The treated water is redirected to the non-potable reuse system for toilet flushing in the SFPUC headquarter building.
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