Productive research on enhancing Baijiu wastewater pretreatment using mesh-belt solid-liquid rapid separation equipment

LOU Jinming; WANG Hongchen; YU Zhennan; WANG Zhuangying; FAN Haitao

doi:10.13205/j.hjgc.202509006

Volume 43 Issue 9

Sep. 2025

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2025 > 43(9): 48-55

LOU Jinming, WANG Hongchen, YU Zhennan, WANG Zhuangying, FAN Haitao. Productive research on enhancing Baijiu wastewater pretreatment using mesh-belt solid-liquid rapid separation equipment[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(9): 48-55. doi: 10.13205/j.hjgc.202509006

Citation:

LOU Jinming, WANG Hongchen, YU Zhennan, WANG Zhuangying, FAN Haitao. Productive research on enhancing Baijiu wastewater pretreatment using mesh-belt solid-liquid rapid separation equipment[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(9): 48-55. doi: 10.13205/j.hjgc.202509006

Citation:

LOU Jinming, WANG Hongchen, YU Zhennan, WANG Zhuangying, FAN Haitao. Productive research on enhancing Baijiu wastewater pretreatment using mesh-belt solid-liquid rapid separation equipment[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(9): 48-55. doi: 10.13205/j.hjgc.202509006

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Productive research on enhancing Baijiu wastewater pretreatment using mesh-belt solid-liquid rapid separation equipment

doi: 10.13205/j.hjgc.202509006

1. School of Environmental Science and Engineering, Hainan University, Haikou 570228, China;
2. School of Chemistry and Life Resources, Renmin University of China, Beijing 100872, China;
3. Shinewater (Beijing) Co., Ltd., Beijing 100000, China

Received Date: 2025-02-20
Available Online: 2025-11-05
Publish Date: 2025-09-01

Abstract

Abstract

The wastewater from the production of Sauce-flavored Baijiu is characterized by high concentrations of slag sand， suspended solids， and organic matter， and the pretreatment process is a key step in wastewater treatment. If the by-products such as dregs and husks generated during the Baijiu brewing process are not removed efficiently， they will impose an extremely high operational load on the subsequent wastewater treatment processes. Additionally， the presence of these by-products can cause severe damage to the equipment. The abrasion and clogging caused by slag sand and other substances may reduce the service life and efficiency of the equipment， resulting in frequent maintenance， higher replacement costs， and even unstable effluent quality. This study conducted a pretreatment enhancement test at the Zhonghua Wastewater Treatment Plant under Kweichow Moutai Co.， Ltd. Using an innovative mesh-belt solid-liquid rapid separation device， the study investigated the efficiency of slag sand removal， treatment capacity， and energy and material consumption at different treatment precision levels. It also assessed the feasibility of wastewater resource utilization. The results clearly showed that the mesh-belt solid-liquid rapid separation equipment offered significant advantages over the current pretreatment process. The comprehensive removal efficiency of slag and sand larger than 200 μm consistently reached over 90%. It not only ensured high removal efficiency for larger slag sand particles but also significantly contributed to the overall wastewater treatment process. Moreover， it saved 62% in land area， a significant advantage in terms of space utilization. In terms of energy consumption， it reduced electricity consumption for operating by 80%. In terms of environmental friendliness， it decreased theoretical odor generation by 90%. These findings provide valuable insights for improving the wastewater treatment efficiency of Sauce-flavored Baijiu production. Additionally， by using extremely high-precision filter meshes， the mesh-belt solid-liquid rapid separation device can effectively recover protein and fat from the dregs. This recovery process provides a valuable source of resources that can potentially be reused. It offers a feasible technical solution for the green and low-carbon operation of Sauce-flavored Baijiu production wastewater treatment plants.
- Sauce-flavored Baijiu,
- enhanced pretreatment,
- solid-liquid rapid separation,
- resource recovery,
- green and low-carbon

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References(20)

References

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