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| − | ==VOLUME I: DESIGN OF WATER SUPPLY PROJECTS ==
| + | __NOTOC__ |
| − | ====Chapter 1: Introduction====
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| − | The preparation of this DCOM manual has been preceded by an overview of four important global consideration of Water Supply and Sanitation prior to reviewing the water and sanitation sector in Tanzania. It is followed by an explanation of the rationale for the preparation of the 4th edition. The introductory chapter is concluded by presenting the organization of the manual as well as the purpose and content of this volume of the DCOM.
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| − | =====Global Considerations on Water Supply and Sanitation===== | + | {| class="wikitable" style="text-align: center; color: green;" |
| − | ======Sustainable Development Goals (SDGs)======
| + | |<h4>Volume I: Design of Water Supply Projects </h4> [[Preface|Readmore...]] |
| − | In 2015, world leaders came together at the United Nations in New York and adopted the 2030 Agenda for Sustainable Development. Governments responded to the common development challenges they faced and the changing world around them by uniting behind a truly forward-looking, yet urgent plan to end poverty and create shared prosperity in a healthy and peaceful planet. The Agenda 2030 central principle is leaving no one behind in achieving the 17 Sustainable Development Goals (SDGs) through 169 targets. The 2030 Agenda for Sustainable Development adopted at the UN Summit includes the SDG 6 on Water and Sanitation and in December 2016, the United Nations General Assembly unanimously adopted the resolution “International Decade for Action - Water for Sustainable Development” (2018–2028) in support of the achievement of SDG 6 on water and sanitation and the related targets <ref>[https://sustainabledevelopment.un.org/ ''Helping governments and stakeholders make the SDGs a reality''].Retrieved 1 March 2020 </ref>. It should also be noted that water and sanitation are at the heart of the Paris Agreement<ref>''Paris Agreement: essential elements''. https://unfccc.int/process-and-meetings/the-paris-agreement/the-paris-agreement</ref> on climate change 2015.
| + | |<h4> Volume II: Design of Sanitation Projects <br /> </h4>[[Volume II: Preface|Readmore...]] |
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| − | Ensuring availability and sustainable management of water and sanitation for all has therefore been for a long while an important topic at the United Nations and is now turning this vision into a reality, through national leadership and global partnerships. Water and sanitation are at the core of sustainable development and the range of services they provide, underpin poverty reduction, economic growth and environmental sustainability. The world needs now to transform the way it manages its water resources and the way it delivers water and sanitation services for billions of people (https://sustainabledevelopment.un.org/sdg6).
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| − | Therefore, the designers and engineers have the responsibility to support the Government to achieve the SDG 6, where population growth and rapid urbanization have intensified demand for water and sanitation services beyond all past thresholds.
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| − | The existing [https://www.maji.go.tz/ design manual] for water supply <ref>URT (2016). ''The Second Five Year Development Plan (FYDP II), 2016/17 – 2020/21. Ministry of Finance and Planning''. https://mof.go.tz/mofdocs/msemaji/Five%202016_17_2020_21.pdf.</ref> and wastewater disposal (3<sup>rd</sup>edition) was formally adopted by the Ministry that was responsible for Water in 2009 and it consists of three parts namely; volume I on Water supply, volume II on Wastewater disposal and volume III on Water pipelines standards and specifications. Since it is now nearly ten years since the third edition of the design manual was adopted and in the meantime, many scientific and technological changes have taken place including the conclusion of MDGs and adoption of the SDGs in 2015 as well as learning some useful lessons out of implementation of the WSDP I and WSDP II (which is still ongoing); it is felt it is high time to revise the design manual <ref>URT (2017). ''National Guidelines for Water, Sanitation and Hygiene in Health Care Facilities''. Ministry of Health, Community Development, Gender, Elderly and Children (MoHCDGEC).</ref>
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| − | manual.
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| − | ====Genesis/Background====
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| − | The existing design manual for water supply and wastewater disposal (3rdedition) was formally adopted by the Ministry that was responsible for Water in 2009 and it consists of three parts namely; volume I on Water supply, volume II on Wastewater disposal and volume III on Water pipelines standards and specifications. Since it is now nearly ten years since the third edition of the design manual was adopted and in the meantime, many scientific and technological changes have taken place including the conclusion of MDGs and adoption of the SDGs in 2015 as well as learning some useful lessons out of implementation of the WSDP I and WSDP II (which is still ongoing); it is felt it is high time to revise the design manual.
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| − | [[File:Tank.jpg|thumb|Underground Tank ]] | |
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| − | ====Rationale====
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| − | The existing design manual for water supply and wastewater disposal (3rdedition) was formally adopted by the Ministry that was responsible for Water in 2009 and it consists of three parts namely; volume I on Water supply, volume II on Wastewater disposal and volume III on Water pipelines standards and specifications. Since it is now nearly ten years since the third edition of the design manual was adopted and in the meantime, many scientific and technological changes have taken place including the conclusion of MDGs and adoption of the SDGs in 2015 as well as learning some useful lessons out of implementation of the WSDP I and WSDP II (which is still ongoing); it is felt it is high time to revise the design manual.
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| − | ====Organisation/description of the manual====
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| − | The existing design manual for water supply and wastewater disposal (3rdedition) was formally adopted by the Ministry that was responsible for Water in 2009 and it consists of three parts namely; volume I on Water supply, volume II on Wastewater disposal and volume III on Water pipelines standards and specifications. Since it is now nearly ten years since the third edition of the design manual was adopted and in the meantime, many scientific and technological changes have taken place including the conclusion of MDGs and adoption of the SDGs in 2015 as well as learning some useful lessons out of implementation of the WSDP I and WSDP II (which is still ongoing); it is felt it is high time to revise the design manual.
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| − | ====ESIA and EIA Compliance====
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| − | The existing design manual for water supply and wastewater disposal (3rdedition) was formally adopted by the Ministry that was responsible for Water in 2009 and it consists of three parts namely; volume I on Water supply, volume II on Wastewater disposal and volume III on Water pipelines standards and specifications. Since it is now nearly ten years since the third edition of the design manual was adopted and in the meantime, many scientific and technological changes have taken place including the conclusion of MDGs and adoption of the SDGs in 2015 as well as learning some useful lessons out of implementation of the WSDP I and WSDP II (which is still ongoing); it is felt it is high time to revise the design manual.
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| − | ====Water supply====
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| − | The existing design manual for water supply and wastewater disposal (3rdedition) was formally adopted by the Ministry that was responsible for Water in 2009 and it consists of three parts namely; volume I on Water supply, volume II on Wastewater disposal and volume III on Water pipelines standards and specifications. Since it is now nearly ten years since the third edition of the design manual was adopted and in the meantime, many scientific and technological changes have taken place including the conclusion of MDGs and adoption of the SDGs in 2015 as well as learning some useful lessons out of implementation of the WSDP I and WSDP II (which is still ongoing); it is felt it is high time to revise the design manual.
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| − | ====Design of Infrastructure: intakes, rising main pipelines, break pressure tanks, washout & air release values, various different valves, storage tanks, distribution pipelines, water points & soak pits====
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| − | ======Design of water supply networks======
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| − | ====== Types of networks (e.g. grid, loops, etc.)======
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| − | ======Design methodologies======
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| − | ======Transmission main======
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| − | ======Distribution network======
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| − | ====== Storage tanks======
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| − | ======Units costs======
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| − | ======Gravity schemes======
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| − | ======Pumping systems======
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| − | == Appendix: Drawings ==
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| − | List of drawings organized per category:
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| − | === Appendix I: Water Treatment ===
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| − | This section presents various drawings related to Water Treatment
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| − | {| class="wikitable"
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| − | | [[File:Sandfilter.png|200px|thumb|right|Sand Filter]] || [[File:Roughingfilter.png|200px|thumb|right|center|Layout of Horizontal-Flow Roughing Filter]] || [[File:Screen Shot 2020-02-12 at 13.24.48.png|200px|right|thumb|Vertical-Flow Roughing]] | + | |<h4>Volume III: Construction Supervision for<br /> |
| | + | Water Supply and Sanitation Projects <br /> </h4>[[Volume III: Preface|Readmore...]] |
| | + | |<h4>Volume IV: Operation and Maintenance of Water<br /> |
| | + | Supply and Sanitation Projects <br /> </h4>[[Volume IV: Preface|Readmore...]] |
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| − | === Appendix 2: House Water Connections Models ===
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| − | This section presents various drawings related to House Water Connections Models
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| − | {| class="wikitable"
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| − | | [[File:Model1.png|200px|thumb|left|House Water Connection Model]] || [[File:Single-tap.png|200px|thumb|left|Single Tap DP]] || [[File:Double-tap.png|200px|thumb|left|Double Tap DP]]
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| − | |}
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| − | === Appendix 3: Structural Drawings ===
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| − | This section presents various structural drawings
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| − | {| class="wikitable"
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| − | | [[File:45m3RiserDetail1.png|200px|thumb|left|45M3 Tank on 6M Riser Reinforcement]] || [[File:45m3RiserDetail v2.png|230px|thumb|centre|45M3 Tank on 6M Riser Elevation]] || [[File:45m3RiserDetail v1.png|200px|thumb|right|45M3 Tank on 6M Riser Blockwork]]
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| − | |}
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| − | ==References==
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| − | <references />
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