Low Carbon Urban Water Environment Project Case Study in Kathmandu, Nepal – ESN

Completed

Low Carbon Urban Water Environment Project Case Study in Kathmandu, Nepal

Introduction

Narrative description of the Project: Water pollution risk assessment

  • Water quality index development
  • Water quality modeling for alternative land use and wastewater treatment facilities
  • Water sustainability index development
  • Database development

Description of Actual Service Provided:

Data Collection

  • Land use and land cover data set, DEM data of the urban river basins, water system networks (water distribution system, storm water drainage system, and sewer collection in separate and combined systems).
  • Hydro-meteorological data: Rainfall data and climate data from meteorological stations within the vicinity of the urban river basins. Discharge data from available river gauging stations.
  • Inventory of all industries. Wastewater discharge and their treatment facilities. Every day how much wastewater can be treated?
  • Water use data (for municipal/domestic and industrial purposes): Sources of water use (ground water, river, lake, coast, etc.). Quantity of water withdrawn from each sources. Quantity of water use for municipal/domestic purpose. Quantity of water use for industrial purpose.
  • Water quality data (for ground water, lake, river, coast, etc.): Location of all water quality observed station. Water parameters are pH, dissolved oxygen (DO), water temperature (Tw), turbidity, conductivity, suspended solids (SS), total dissolved solids (TDS), chloride (Cl-), biochemical oxygen demand (BOD), chemical oxygen demand (COD), TN, total coliforms (T. coli), total phosphorus. The water quality parameters may not be limited to these parameters.
  • Socio-economic data: Population, health condition, GHG emission, GDP, etc.

Literature Review and Data Analysis

  • Review existing reports, studies and documentation for
    • Law, policies, institutional and management set-up for different sectoral water uses.
    • Social/cultural practices affecting water uses.
    • Land use planning, wastewater treatment facilities and overall water resources management.
  • Evaluate the existing condition of the urban environment.
  • Review current and future plan of the urban development.
  • Risk assessment of urban water pollution towards human health and ecosystem

Project Duration

Start Date: 2014-09-01
End Date: 2015-04-30
Location: Kathmandu
Client: UNU-IAS (United Nations University – Institute for the Advanced Study of Sustainability)