Rao Talao, Mira Bhayandar: nanobubble treatment of a 6,000 m³ urban pond
Rao Talao is a 6,000 m³ urban pond in Mira Bhayandar, maintained by the Mira Bhayandar Municipal Corporation (MBMC). Avior Aqua is treating the pond in place with nanobubble generators mounted on floating frames. An NABL-accredited laboratory tested the water before treatment in June 2026 and again in November 2026.
- Turbidity (NTU)
- 94 → 1.0
- Total suspended solids (mg/L)
- 342 → 4
- BOD (mg/L)
- 58 → 10
- COD (mg/L)
- 102.4 → 21.6
Before: 3 June 2026. After: 2 November 2026. As stated in the laboratory reports.
Summary
Rao Talao is a 6,000 m³ urban pond in Mira Bhayandar, treated in place with nanobubble generators for MBMC. An NABL-accredited laboratory sampled it on 3 June 2026 and 2 November 2026. Between the two samples, turbidity went from 94 to 1.0 NTU and TSS from 342 to 4 mg/L.
- Client
- Mira Bhayandar Municipal Corporation (MBMC)
- Site
- Rao Talao, Mira Bhayandar, Maharashtra
- Water body
- Urban pond, about 6,000 m³
- Treatment
- In-place nanobubble treatment; generators on floating stainless-steel frames with pontoons and mesh intake cages
- Status
- Ongoing (results as of November 2026)
- Testing
- Varni Analytical LLP, NABL-accredited (ISO/IEC 17025:2017)
The pond
Rao Talao sits in a dense residential area, ringed by a walkway, play areas and palms. Before treatment the water was green and turbid, with high suspended solids.
What Avior installed
Nanobubble generators were placed in the pond on floating stainless-steel frames, with mesh cages on the water intakes. The units treat the water where it is, with no draining, dredging or pumping to a plant.
Results
Samples were collected on 3 June 2026 (before) and 2 November 2026 (after) and tested by Varni Analytical LLP. The figures below are as stated in the laboratory reports.
| Parameter | Unit | Method | Before (3 Jun 2026) | After (2 Nov 2026) |
|---|---|---|---|---|
| Turbidity | NTU | IS 3025 (Part 10) : 2023 | 94.00 | 1.0 |
| Chemical oxygen demand (COD) | mg/L | IS 3025 (Part 58) : 2023 | 102.40 | 21.60 |
| Biochemical oxygen demand (BOD) | mg/L | IS 3025 (Part 44) : 2023 | 58.00 | 10.00 |
| Total suspended solids (TSS) | mg/L | IS 3025 (Part 17) : 2022 | 342.00 | 4.00 |
| Ammonia | mg/L | IS 3025 (Part 34) : 1988 | 0.14 | Not detected (below 0.02) |
| E. coli | MPN/100 mL | IS 1622 : 1981 | 1,600 | More than 1,600 |
| Total faecal coliform | MPN/100 mL | IS 1622 : 1981 | 1,600 | More than 1,600 |
Questions about Rao Talao
Where is Rao Talao?
In Mira Bhayandar, Maharashtra. It is a 6,000 m³ urban pond maintained by MBMC.
How was the water treated?
With Avior Aqua nanobubble generators on floating frames, treating the water in place.
Who tested the water?
Varni Analytical LLP, an NABL-accredited laboratory, on samples collected on 3 June 2026 and 2 November 2026.
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