All categories
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PART I INTRODUCTION
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PART II INSTITUTIONAL AND REGULATORY FRAMEWORK
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2.INSTITUTIONAL, POLICY, REGULATORY FRAMEWORK FOR RURAL SANITATION AND WASTEWATER MANAGEMENT
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2.1 Overview
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2.2.Institutional Arrangement
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2.3.Policies and Regulations
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2.4 Discharge Standards
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2.5.Sources of funds
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2.6.Typical provincial cases
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2.7.Conclusions and recommendations
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PART III TECHNICAL BASIS
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3 Overview of Rural Sanitation and Wastewater Management
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3.1 Domestic Wastewater
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3.2 Rural Toilets in China – Source of Black Water
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3.3 Decentralized vs. Centralized Rural Wastewater Management
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4 Rural Wastewater Treatment Technology
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4.1 Preliminary Treatment
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4.2. Primary Treatment
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4.3 Secondary Treatment
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4.3.1 Attached Growth Process
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4.3.2 Suspended growth Process
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4.3.3 Waste Stabilization Pond
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4.3.4 Constructed Wetlands
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4.3.5 Subsurface Wastewater Infiltration Systems
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5 Wastewater Treatment Process Design
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5.1 General Design Consideration
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5.2 Sewage Collection Alternatives
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5.3 Wastewater Treatment Process Design
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5.4 Water Reuse
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5.5 Sludge Management
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PART IV PROJECT PLANNING AND DESIGN
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6 Project Planning and Design
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6.1 Diagnosis for Project Villages – Initial Community Assessment
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6.2 Establishment of Stakeholder Group
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6.3 Assessment on Existing Conditions and Community’s Capacity
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6.3.1 Physical Conditions Assessment
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6.3.2 Community’s Capacity Assessment
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6.4 Baseline Engineering Survey and Assessment
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6.5 Project Feasibility Study and Environmental Impact Assessment
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6.6 Selection of Operation Model
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6.7 Project Cost Estimate
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7 Community Participation
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7.1 Why Need Community Participation?
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7.2 Principles of Community Participation
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7.3 Community Participation Activities
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PART V PROJECT FINANCING
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8 Financing, Subsidies, and Cost Recovery
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8.1 Programmatic Costs
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8.2 Project Implementation Costs
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8.3 Project Financing
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8.4 Subsidies
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8.5 Cost Recovery
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PART VI PROJECT IMPLEMENTATION AND MANAGEMENT
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9 Procurement and Implementation
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9.1 Procurement Principles
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9.2 Procurement Alternatives
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9.3 Procurement Planning
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10 System Adminstration, Operation, Maintenance and Monitoring
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10.1 Introduction
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10.2 Management and Administration Arrangement
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10.3 Operation and Maintenance
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10.4 Reporting and Monitoring
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10.5 Operator Training and Support
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Appendix: Case Studies – Rural Wastewater Management in Zhejiang, Shanxi, and Jiangsu Province
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1.Zhejiang Province
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2.Shanxi Province
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3.Jiangsu Province
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4.Summary
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REFERENCES
6.3.1 Physical Conditions Assessment
- Categories: 6.3 Assessment on Existing Conditions and Community’s Capacity
- Time of issue: 2022-04-28 20:25:17
- Views: 0
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Key aspects to be assessed include:
- Socioeconomic conditions. This will provide perspective on the types of technologies that are likely to be acceptable and affordable for the village.
- Population distribution. For example, if the houses are closely spaced with small lots, the use of decentralized on-site sanitation systems may not be viable.
- Water supply conditions. Access to municipal water supply results in high volume of wastewater generated. This will impact the facilities’ design capacity and selection of applicable technologies.
- Topography. In the coastal plains the villages are on relatively flat land so that the layout of sewers may not be complicated; however, in mountainous regions lot elevations vary significantly resulting in complex and costly sewers.
- Geology, soil and groundwater conditions. What is the permeability of soils? What is the nature and depth of bedrock? How deep is groundwater? All these will have a significant influence on the sanitary solution found to be appropriate for the village.
- Climate. Temperature will affect the viability of bacteria, and therefore impact the treatment efficiency of biological treatment technologies. Local temperature will be carefully considered during project design.
- Electrical supply conditions. If the villages or potential sites have limited access to electricity, wastewater treatment technologies requiring continuous electrical supply are not a suitable choice.
- Identifying any potential geologic hazards, primarily landslides, at an early stage of project planning can hopefully avoid serious problems that could occur if wastewater is directed into a potentially unstable area.
- Identifying flood zones is also important to avoid constructing any facilities in areas that are prone to flooding.