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This issue is acute because storm drains are being filled with solid waste and illegally connected septic tanks disposing of faecal sludge. Since 2015, WSUP has been addressing FSM through its proven PPP model called SWEEP, which has been implemented in large megacities such as Dhaka and Chattogram. SWEEP focuses on the efficient management of faecal sludge, ensuring that waste is properly collected, and transferred to a treatment plant rather than ending up in storm drains. WSUP collaborates closely with key utilities like Dhaka WASA and Chattogram WASA to influence and advocate for integrated waste management solutions, particularly in urban areas where the challenges are most severe. Although SWEEP started as a model for managing only faecal waste, we are now exploring its potential for sustainable integrated waste management. The success of SWEEP lies in its holistic approach. It involves not just the technical aspects of waste collection and treatment but also the engagement of local communities and stakeholders. By raising awareness and educating residents about the importance of proper waste disposal, WSUP helps reduce the incidence of illegal connections and improper disposal practices. WSUP has extensive experience working in disaster-prone locations, such as Chattogram, which frequently experiences floods during the rainy season. By investing in resilient infrastructure, WSUP ensures that water and sanitation systems can withstand extreme weather conditions. This includes the construction of flood-resistant water supply systems and elevated platforms for water storage tanks to prevent contamination from floodwaters. In Chattogram, for example, WSUP builds toilets and sanitation facilities on raised platforms
to prevent submersion during floods. These elevated structures ensure that sanitation facilities remain functional, preventing the spread of waterborne diseases and maintaining hygiene standards even during severe flooding. How does DPHE collaborate with WSUP to achieve its vision in building a climate-resilient water and sanitation infrastructure in Bangladesh? Share some recent successful case studies. Shramistha: The DPHE collaborates with WSUP to build climate-resilient water and sanitation infrastructure in Bangladesh through a combination of technical assistance, capacity building, and community engagement. DPHE and WSUP work together to enhance the technical capabilities of local authorities and communities in managing water and sanitation systems. This includes training on the operation and maintenance (O&M) of infrastructure, as well as the integration of climate resilience into planning and design. Both develop and implement solutions tailored to the local context. This includes constructing water supply systems that can withstand climate impacts, improving sanitation facilities, and ensuring these systems are sustainable and resilient to future climate risks. WSUP and DPHE emphasise the importance of
community involvement in water and sanitation projects. They engage with local communities to raise awareness about climate change impacts, promote hygiene practices, and encourage the adoption of sustainable water and sanitation behaviours. The collaboration also focuses on influencing policy to support climate-resilient infrastructure development. This includes advocating for supportive regulatory frameworks and increased investment in water and sanitation infrastructure. Recently, the Khulna Sanitation Improvement Initiative aimed to improve sanitation facilities and reduce environmental pollution. The initiative resulted in the construction of climate-resilient sanitation blocks and the implementation of waste management systems that minimise the risk of contamination during heavy rains and flooding. This has improved public health outcomes in the area. Another integrated water management project is in Rajshahi which targeted to develop integrated water management solutions that are resilient to climate change. The project introduced the use of solar-powered pumps for water supply and the creation of green infrastructure to manage stormwater. These measures have improved water security and reduced vulnerability to climate-related water shortages.
Uttam Saha Bangladesh country manager, WSUP
Shramistha Debnath Executive engineer, DPHE
Water & Wastewater Asia | September-October 2024 21
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