Hyderabad Nala Cleanup Tests Japanese Bio Technology
Hyderabad has taken a step towards cleaner urban waterways by evaluating an advanced Japanese wastewater treatment system designed to restore polluted drains using biological processes. The pilot project, currently under assessment, could influence how the city addresses sewage pollution while reducing the environmental footprint of conventional treatment infrastructure.
The Hyderabad Metropolitan Water Supply and Sewerage Board (HMWSSB) has completed a review of a pilot project using Bio Lace technology at the Fatehnagar Sewage Treatment Plant. Developed with technical support from Japanese partners, the initiative is being tested to determine whether it can improve the quality of wastewater flowing through the city’s polluted nalas and support long-term urban water restoration efforts. According to officials, the pilot plant is capable of treating one million litres of wastewater per day and has delivered encouraging early results. Preliminary assessments indicate notable improvements in key water quality indicators, including reductions in organic pollutants and suspended solids, alongside improvements in dissolved oxygen levels and a reduction in unpleasant odours. The significance of Bio Lace technology lies in its potential to complement existing sewage treatment systems while requiring substantially less land and energy than conventional plants. The biological treatment process relies on naturally occurring microorganisms rather than chemical additives, helping reduce operational costs, sludge generation and energy consumption. Such characteristics could make the approach particularly relevant for densely populated urban areas where land availability is limited.
Urban water management experts note that Hyderabad’s expanding population and rapid urbanisation have placed increasing pressure on drainage systems and surface water bodies. Untreated sewage entering nalas remains one of the city’s major environmental challenges, affecting downstream lakes, groundwater quality and public health. Technologies capable of treating wastewater closer to the source could play a valuable role in reducing pollution loads before they reach larger water bodies. The pilot is also expected to undergo an independent evaluation by the Telangana Pollution Control Board before any decision is taken on wider implementation. Environmental specialists emphasise that long-term monitoring will be essential to assess treatment efficiency under varying seasonal conditions, maintenance requirements and overall lifecycle costs before scaling the technology across the city. If proven effective, officials are also examining whether the system can be deployed directly within flowing urban drains rather than only at treatment facilities. Such applications could help accelerate nala restoration while supporting broader efforts to improve urban water resilience and environmental quality.
As Hyderabad continues investing in wastewater infrastructure, the success of Bio Lace technology will depend not only on technical performance but also on integration with sewer networks, pollution control measures and catchment-level planning. Experts believe combining innovative treatment solutions with improved sewage collection and stronger environmental governance will be critical to restoring urban waterways and building a more climate-resilient and sustainable city.
