I. Project Background:

China's renowned liquor, Jiannan Chun

Originating from the Sanxingdui civilization,

Beginning in the Southern Qi, flourishing during the prosperous Tang dynasty,

It has been passed down to this day for 1500 Remaining years.

Jiannan Chun Group Company is investing 3 billion yuan to build the "Tang Dynasty National Liquor Ecological Park," along with a complementary "Demonstration Project for Comprehensive Utilization of Water Pollution Control," setting a new benchmark for the green transformation of the baijiu industry.
Southern Environmental Protection, leveraging its cutting-edge technological expertise, successfully won the bid and completed the construction of the project's odor-control system, effectively addressing the issue of sewage treatment plant odor emissions and safeguarding the millennium-old aroma that has long enveloped the campus.

II. Odor Collection System

The master brewer says: "Three parts brewing, seven parts aging."

The environmental engineer said: "Thirty percent is about management, but seventy percent is about strict prevention."

A dual-efficiency solution—combining "local sealing with negative-pressure collection"—is employed for odor-intensive areas such as regulating ponds, collection basins, sludge silos, and bar screens.

Covered-form method | PC Endurance Board + Steel framework

✔ Source control: Odor sources are fully sealed to minimize odor emissions.
✔ Smaller is better: Precise airflow control reduces system energy consumption
✔ Negative-pressure collection: Optimized airflow management enhances odor removal efficiency.

Southern Environmental Protection Gives the Park an "Invisible Coat" ,

Preserve the rich aroma that has lingered for millennia.

III. Odor Treatment System
Brewery wastewater contains large amounts of volatile organic compounds such as alcohols. Based on the inlet gas concentration and composition, a combined process of "chemical scrubbing + biofilter" is employed.

Odor Treatment Process Flowchart

Pool Structure | Glass fiber reinforced plastic板 + Stainless steel plate   

✔ Chemical washing: Removes high-concentration or inhibitory components, stabilizes the biological treatment load, and adjusts physicochemical gas conditions.
✔ Biofilter: Equipped with Southern Environmental Protection's patented microbial strains and packing material, it features rapid startup and highly effective decomposition of odorous substances.

The master brewer says: Brewing is the art of microorganisms.

The environmental engineer said: "Pollution control is the science of microorganisms."

The Southern Environmental Protection Biofilter utilizes specially selected and acclimatized, highly efficient degrading microbial strains. These strains are formulated into industry-specific microbial agents tailored to the unique pollutants and characteristics of various sectors. The agents are also produced independently at a scalable level, ensuring strong targeting, rapid activation, and excellent treatment performance.
4. Exhaust Gas Emissions Meet Standards
Through systematic management, the exhaust gas now meets the Level 2 emission standard for 15-meter-high stacks as outlined in the "Emission Standard for Odorous Pollutants" (GB 14554-1993). Testing has shown that the odor concentration has been reduced by more than 95%, leaving the厂区 filled only with the pleasant aroma of alcohol—no trace of unpleasant odors—effectively mitigating the "NIMBY" (Not In My Backyard) phenomenon.

Achieve emission standards | Emission tower odor concentration < 500

Time matures, crafting a rich and exquisite brew.

25 Cultivate deep roots to resolve odor pollution.

Southern Environmental Protection leverages its expert technology in odor control.

Let the millennia-old artisanal craftsmanship continue,

It can settle in earthen jars, yet also flow freely in the gentle breeze.

Empowering China's Brewing Industry with Eco-Friendly Technology

Uphold tradition, embrace the times,

In the wave of green transformation

Presenting the "ecological business card" to the world.