Green Spectrum Energy LLP
◆ Projects

Sites we've
helped come back.

A selection of completed and active programs across India — from coastal wetlands to urban lakes and renewable infrastructure.

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Ongoing◆ Bio-Remediation

Vibhuthipura Lake Bio-Remediation

MIW Bacillus consortium dosing across Vibhuthipura Lake, executed under BWSSB with NABL-accredited water testing. Column pulled back inside CPCB inland-surface-water limits on pH, COD, and total nitrogen.

Location
LBS Nagar, Bengaluru
Year
2026
Client
Bangalore Water Supply & Sewerage Board (BWSSB)
Scope
Urban lake · Kaggadasapura ward
Duration
Multi-phase treatment
Vibhuthipura Lake Bio-Remediation

8.9

pH

49 mg/L

COD

3.4 mg/L

Total N

◆ The challenge

What we
walked into.

The urban lake had collapsed under chronic sewage inflow and stormwater loading — hyper-eutrophic column, DO close to zero, algal mats over open water, and odour complaints from residents. The site sits inside a dense neighbourhood, so any intervention had to be chemical-free, low-noise, and safe for the surrounding community.

◆ Before · After

The shift, in one frame.

Vibhuthipura Lake Bio-Remediation — before
Before

Baseline

Hyper-eutrophic · thick algal mat · DO collapsed

Vibhuthipura Lake Bio-Remediation — after
After

Outcome state

Compliant outflow · NGT 2019 · clarity returning

◆ Our approach

Calibrated,
not generic.

  1. 01

    MIW Bacillus consortium dosing

    A site-specific Bacillus consortium is dosed at the inflow and open-water zones, with initial bacterial activation in under 30 minutes — no synthetic chemicals, no sediment dredging, no disruption to the shoreline.

  2. 02

    Facultative-to-aerobic phase shift

    Bacterial growth drives organic-matter breakdown through nitrification and denitrification, lifting dissolved oxygen and breaking the H₂S / phosphorus loop that fuels the algal bloom.

  3. 03

    NABL-accredited compliance dossier

    Weekly grab samples by certified field officers, paired with NABL-accredited lab analysis, build a live compliance dossier against NGT 2019 and CPCB norms — no retrofit reporting at handover.

◆ Outcome

By the end of the treatment window the lake sits inside NGT 2019 / CPCB inland-surface-water limits — BOD, COD, ammonical N and total N all pulled back into compliance range, with algal cover visibly retreating from the inflow corridor and column clarity returning to the open-water zone.

◆ Have a similar site?

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recovery program.

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