Consulting, design, upgrade and operation of wastewater treatment plants
BioGreenTech supports plants from survey to stable effluent compliance with QCVN 40:2025/BTNMT — including chemicals, documentation and data that matches reality.
Related services
WWTP health check (free)
On-site survey, 15 VILAS parameters, jar test and a 25–35 page report in 5 days.
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Consulting, design, construction & retrofit
New design or retrofit to QCVN 40:2025 column A/B with cost estimate and ROI.
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Operation & maintenance (O&M)
Resident engineers, chemical control, monthly data reports and 24/7 hotline support.
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What we do
- Survey current status, evaluate technology and identify causes of non-compliance
- New design or retrofit to QCVN 40:2025 column A/B limits
- Full O&M service with committed effluent quality
- Water treatment chemicals with COA/MSDS and jar-test optimised dosing
Process
Survey & sampling
Engineers measure flow on site, take samples at 4 points and collect operation logs.
Analysis & jar test
A VILAS lab analyses 15 parameters; jar tests determine the optimal chemical formula.
Design & quotation
2–3 scenarios with drawings, cost estimates, construction schedule and effluent commitments.
Construction & commissioning
On-schedule construction, biomass seeding, commissioning and verification monitoring before handover.
O&M operation
Resident or periodic engineers, monthly data reporting, documentation consistent with actual operation.
Who needs this service
Frequently asked questions
Do you upgrade systems built by other contractors?
Yes. Most of our projects are retrofits of existing plants. We survey, keep serviceable equipment and replace only what is necessary to control cost.
Does the O&M contract guarantee effluent quality?
Yes. The O&M contract states the guaranteed parameters under the applicable QCVN, verification monitoring frequency and liability if exceedances are caused by operation.
Can we buy chemicals only, without services?
Yes. Chemicals are sold independently with per-batch COA/MSDS. Contact us for a quote by packaging and volume.
Need advice for your plant?
Send your plant details — a BioGreenTech engineer replies within 24 business hours.