A Real-World Record of Odor Purification at the National Secret Brewing Garden-Nanfang Environmental Protection

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A Real-World Record of Odor Purification at the National Secret Brewing Garden

Release Time:

2025-06-16

Guizhou Dongjiu invests heavily to expand its 40,000-ton production base, simultaneously constructing a 1,200 m³/d wastewater treatment plant. To safeguard the surrounding environment and minimize secondary pollution from odors generated by structures within the wastewater facility, Southern Environmental Protection has designed and built an integrated odor-control system on-site, ensuring this critical link in eco-friendly brewing is fully addressed.

I. Project Background

Guizhou Dongjiu Invests Heavily in Expansion 4 A 10,000-ton production base, under simultaneous construction 1200 m³/day Wastewater treatment plant. To protect the surrounding environment and minimize secondary pollution caused by odors emitted from structures within the sewage plant, the Southern Environmental Protection Plant has designed and constructed an integrated odor-control system on-site, completing a crucial link in the eco-friendly brewing process.

II. Odor Collection

Southern Environmental Protection weaves a network for the wastewater treatment plant. “ Catch the Flavor Network ” , effectively capturing all odors from the emergency accident pool, pretreatment combination pool, biological combination pool, sludge thickening tank, conditioning tank, and the plate-and-frame press workshop.

◆ Comprehensive Collection | Using fiberglass ducts and micro-negative-pressure gas collection, we eliminate uncontrolled odor emissions.

◆ Precise Flow Control | Customize the air intake based on the structure's dimensions, ensuring uniform airflow with no dead spots.

◆ Scientifically planned | The pipeline layout balances collection efficiency with ease of operation and maintenance, allowing staff to work with confidence.

III. Odor Treatment

Odor Treatment System [Chemical Scrubbing] + Biological Filtration】Combined Process, Design Handling Capacity 10,000 m³/h 。

◆ Chemical washing | By using a chemical tower to remove high-concentration or inhibitory components, stabilize the biological treatment load, and adjust the physicochemical conditions of the gas.

◆ Biological filtration | Biological filter tank equipped Southern Eco-Friendly Patent Microbial Strains and Fillers , quick start, efficiently breaks down odorous substances.

IV. Governance Outcomes

After systematic treatment, the odor concentration at the emission tower meets the "Emission Standard for Odorous Pollutants." GB14554-1993 ) In the organized emission standards 15 Tier 2 emission standards for rice exhaust stacks, The odor concentration was detected to be at 100 Left and right , effectively addressing the NIMBY effect and providing a crucial link for the construction of the eco-friendly winery.