Technical Assistance for Combating Arsenic Pollution Through Sustainable WASH Interventions for Extreme Poor in the Remote Rural Areas of Bangladesh

Study on WASH (Water, Sanitation and Hygiene) Challenges in Slum areas of Dhaka City

Period: December 2015 - October 2016

Client(s): Concern Worldwide Bangladesh

While implementing WASH water supply technologies in different Char areas of Bangladesh, Concern Worldwide found arsenic levels greater than 50 ppb in many of their intervention tubewells. The project is being implemented in Char areas of three districts (Bera Upazila of Pabna, Bagha Upazila of Rajshahi and Sadar Upazila of Chapainawabganj district). Through this pilot project, ITN-BUET provided technical assistance for piloting arsenic mitigation technologies in char areas of three districts.

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  • Suitable arsenic mitigation options are identified for remote rural char areas through consultation with stakeholders.
  • Arsenic mitigation options suitable for rural char areas were designed and implemented.
  • The technical performance and user acceptance were monitored, and evaluation reports prepared.
  • The learnings of piloting were disseminated among stakeholders.

Report/Publication:

Study Report: https://itn.buet.ac.bd/web/resource/study-report-on-wash-challenges-in-slum-areas-of-dhaka-city/

More Completed Projects

Review of Policies and Institutional Landscape on Solid Waste Management in Urban Settings of Bangladesh

With the rapid pace of urbanization in Bangladesh, the daily generation of solid waste in urban cities is increasing day by day. This huge amount of waste poses significant challenges for cities in terms of environmental degradation, public health risks, economic losses, and overall quality of life. In an effort to address these issues and protect the well-being of approximately 1.8 million people in 12 cities and towns, SNV, with the support of the Embassy of the Kingdom of the Netherlands, has been awarded a new project in Bangladesh called “Transitioning to Sustainable Urban Water Cycles in Bangladesh.” The project aims to improve urban issues including solid waste management by enhancing access to safe and essential urban services. One of the key objectives is to strengthen the capacities of cities in providing comprehensive, inclusive services by enhancing the professionalism and financial viability of urban sanitation and solid waste services. To achieve this, SNV intends to conduct an in-depth analysis of existing policies, acts, laws, strategies, and institutional arrangements related to the solid waste management (SWM) system in urban areas, with a specific focus on their project cities. In order to accomplish this task, ITN-BUET is responsible for providing technical input and expertise.

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July 2023 to December 2023

Electrode-integrated bioreactor and floating constructed wetland as decentralized wastewater treatment systems

Electrode-integrated bioreactor and floating constructed wetland as decentralized wastewater treatment systems

‘Electrode-integrated bioreactor and floating constructed wetland as decentralized wastewater treatment systems’ is 10-months long laboratory-scale research, which will investigate the integrated impact of fuel cell-based bioreactor tank with constructed wetland systems for the treatment of domestic wastewater from septic tanks. Fuel cell-based bioreactor tank achieve high pollutants removal rates under low wastewater retention time, through degradation of organic pollutants and production of bio-energy. The treatment system will function to remove environmental pollutants, macro-pollutants, metals and pathogenic parameters and quantify the bio-energy production that will act as a catalyst for the system function. The proposed research is expected to develop guidelines for a simple, novel wastewater treatment systems in institutions and/or domestic wastewater treatment in urban, semi urban areas of Bangladesh.

Major Objectives:

  • To investigate environmental parameters (pH, ORP), macro pollutants (TKN, NH4-N, NO2-N, NO3-N, TN, Ortho P, TP, BOD, COD, TOC, TSS, Sulfate) metals (Cr, Cd, Ni, Cu, Zn, Pb, Hg, Fe, Mn) and coliform removal performances of the fuel cell integrated bioreactor septic tank.
  • To observe the integrated impact of fuel cell-based bioreactor tank-constructed wetland systems for producing effluent quality fulfilling discharge limits.
  • To quantify bioenergy production rates across the developed systems.
  • To develop design guidelines of such novel systems for onsite wastewater treatment in urban, semi-urban area of Bangladesh.

Principal Investigator:

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December 2022 to ongoing

Performance Evaluation of Water Desalination Systems of Safe Water Supply Project through Environment Friendly Solar Desalination Unit

Performance Evaluation of Water Desalination Systems of Safe Water Supply Project through Environment Friendly Solar Desalination Unit

Background
In coastal areas of Bangladesh, villagers rely heavily on Pond Sand Filters for drinking water, but after cyclones Sidr and Aila, many of these filters are out of order and the number of available fresh water sources has decreased. This has led to long lines and insufficient water for families. Women and children often have to walk long distances to get drinking water, which is scarce and costly in these areas. Some people are unable to afford to buy water and have to drink unsafe water. To address this issue, the Department of Public Health Engineering has installed 970 solar desalination units in 61 areas of 16 coastal districts through the project titled “Safe Water Supply Project using Environment Friendly Solar Desalination Unit”.

Objectives of the Assignment
The prime objective of this assignment is to:
• Evaluate the water desalination technology and its efficiency based on users’ feedback at field level.
• Provide recommendations to the project for the further expansion of the interventions.

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December 2022 to January 2023