13 products
Wastewater Treatment Bacteria
Microbial cultures for municipal and industrial wastewater treatment, including a dedicated culture for black-odour water bodies.
National High-Tech EnterpriseCertified manufacturer, not a trading company
10+ granted patentsOwn strain screening and formulation
80,000 t annual capacityFermentation and formulation in-house
200+ proprietary strainsStrain library held in-house
Products
Six product ranges
Every range is manufactured in-house and supplied with technical support and export documentation.
13 products
4 products
Municipal Sanitation Deodorising
Biological, botanical-extract and enzymatic deodorising agents for sanitation, transfer stations and food waste handling.
10 products
Oilfield Chemicals
Bio-based viscosity reducers, biosurfactants, foam agents, polymer degradation agents and microbial-polysaccharide thickeners and suspending agents for oil and gas production.
3 products
Livestock Bacteria
Fermentation bedding cultures, manure fermentation agents and farm odour control.
4 products
Household & Pet Deodorising
Biological deodorizers for drainage systems, pet odour and cat litter.
5 products
Phage Technology
Phage display libraries, platform services and phage-based livestock applications.
Performance
Typical treatment performance
≥ 90%Food-waste odour removal
60–75%Total nitrogen removal
10⁻³ mN/mInterfacial tension (glycolipid biosurfactant)
≤ 48 hSolution response
Typical treatment results, each tied to a stated application rather than a guaranteed minimum. If your operating conditions differ, we will re-check the expected range for your case. More on how we measure · Common questions
Applications
Where our products are used
- Municipal and industrial wastewater treatment
- Black-odour rivers, channels and receiving waters
- Waste transfer stations, sorting lines and food waste
- Livestock housing, fermentation bedding and manure
- Oil and gas: viscosity reduction, deliquification, polymer floods
- Drainage, pet odour and household applications
- Phage display libraries and platform services
Why Jiuyi
Why customers work with us
Manufacturer, not a trading company
Strains are selected and screened in-house, fermentation and formulation run on our own 80,000 t-a plant, and key cultures and glycolipid surfactants are produced there.
Specified, not just sold
We start from your effluent or reservoir data and confirm whether a biological route applies at all.
Documentation that clears customs
MSDS / SDS and COA per product, plus export quarantine paperwork for microbial goods.
Neutral, defensible claims
We describe our products as reducing odour and improving biodegradation — not as sterilants.
Engineers on the reply
Dosing guidance and troubleshooting come from the application team, not only from a sales desk.
Language
Looking for the Chinese site?
This is the English export site of Jiuyi. The Chinese-language site 91bio.com has been running since 2014 and carries the full domestic catalogue and news archive.
Process
How to start a project
Send your data
Target parameter, effluent or reservoir data, and the quantity you need.
Get a programme
Our engineers review the case and propose a culture or chemical programme with dosing guidance.
Ship with documents
We quote FOB or CIF and ship with the documentation pack for customs and your technical file.
Tell us the problem, not the product name
Most projects start with an odour complaint, a plant that will not hold its biology, or a well that will not unload. Send us the data and we will tell you whether a biological route is the right answer.