Key Highlights
- First Indian urban local body to issue a certified Green Municipal Bond, generating ₹150 crore for green water infrastructure.
- Bond finances a 40 MLD tertiary sewage treatment plant that incorporates micro‑, ultra‑, nano‑filtration and reverse‑osmosis membranes.
- The facility supplies treated water to more than 1,400 industrial units via a 95‑km pipeline, with contractual supply of 9.5 MLD.
- Project is executed through a Public‑Private Partnership Hybrid Annuity Model, setting a precedent for green municipal financing.
- The plant secured the Best Municipal Treated Water Reuse Award at the Water Digest World Water Awards 2024–25.
Detailed Insights
The Green Municipal Bond, a certified green security, was issued by the municipal corporation under the supervision of central and state financial regulators. It raised ₹150 crore, earmarked exclusively for a state‑of‑the‑art tertiary sewage treatment plant (TSTP) situated along Ghaziabad’s river corridor. The TSTP, with a design capacity of 40 million litres per day, uses a sequence of advanced membrane stages: micro‑filtration, ultra‑filtration, nano‑filtration and finally reverse‑osmosis to achieve a water quality compliant with drinking standards. The treated effluent is dispatched through a 95‑km dedicated pipeline, reaching over 1,400 industrial users, and is bound by long‑term contracts that guarantee delivery of 9.5 MLD. The funding model follows a 40‑percent municipal share coupled with private sector participation under the Hybrid Annuity Model, ensuring a balanced risk profile and investor confidence. The project’s successful delivery and environmental performance earned it the prestigious Best Municipal Treated Water Reuse Award.
Key Concepts
- Green Municipal Bond – A municipal security that raises capital for environmentally sustainable projects, subject to certification by a recognised body.
- Tertiary Sewage Treatment Plant (TSTP) – A facility that performs advanced treatment of urban wastewater to meet or exceed drinking‑water standards.
- Hybrid Annuity Model (HAM) – A public‑private partnership structure that blends annuity payments with risk‑sharing mechanisms.
- Membrane Filtration – A separation technology employing semi‑permeable membranes to remove suspended solids, microbiological and chemical contaminants.
- Public‑Private Partnership (PPP) – A collaboration where a government entity partners with the private sector to deliver public infrastructure.