Environmental protection equipment supplier
Case Study / Waste Gas Treatment
Shandong Pharmaceutical Factory Animal Room Deodorization
Reliable, energy-efficient exhaust air deodorization for a Shandong pharmaceutical animal facility. Specifically, this solution combines UV photocatalytic oxidation with plant-based spray technology.
Project Overview
This project serves a well-established pharmaceutical manufacturing company in Shandong Province, China. The client operates a dedicated animal room facility within their production complex. Importantly, this facility houses laboratory animals for drug safety testing, quality control, and research. Furthermore, the company sought to upgrade their exhaust air treatment system. This upgrade ensures effective odor control and meets national emission standards.
The client selected Soto Machinery as the solution provider. Indeed, our proven track record in pharmaceutical waste gas treatment set us apart. Moreover, we combine high treatment efficiency with low operating costs. Specifically, the client emphasized the need for stable, reliable performance over long-term continuous operation. In addition, they wanted to minimize energy consumption and maintenance requirements.
The Challenge
Key Challenges Identified
- Odorous Gas Composition: Specifically, the animal room generates ammonia (NH3), hydrogen sulfide (H2S), mercaptans, indole, skatole, and volatile fatty acids. These compounds come from animal excreta, bedding decomposition, and biological waste.
- Energy Efficiency Priority: Additionally, the client required a system with low energy consumption to minimize operational costs. This remains an important consideration for a production facility with tight cost controls.
- Reliability and Stability: Furthermore, the animal facility operates continuously. Therefore, the treatment system must maintain consistent performance 24/7 with minimal downtime for maintenance.
- GB14554-93 Compliance: Moreover, the treated exhaust must fully comply with China’s national odor pollutant discharge standard GB14554-93 Class II requirements.
- Existing Infrastructure Integration: In addition, the system needed integration with the facility’s existing ventilation and ductwork. This required minimal modification and installation downtime.
- Cost-Effective Operation: Finally, the client required a solution with low consumable costs and simple maintenance. Their in-house facilities team could handle these procedures.
Following a comprehensive site assessment and exhaust air sampling analysis, our engineering team designed a two-stage treatment system. Specifically, this system leverages the strengths of both plant-based spray deodorization and UV photocatalytic oxidation. We chose this combination for its proven effectiveness in animal facility applications. Moreover, it offers energy efficiency and low maintenance requirements compared to thermal treatment methods.
Our Solution
Soto Machinery delivered a customized two-stage waste gas treatment system. Specifically, it combines plant-based spray deodorization and UV photocatalytic oxidation. This proven combination provides comprehensive treatment of both inorganic and organic odorous compounds. In addition, it maintains low energy consumption and stable long-term performance.
1
Exhaust Collection System
First, we modified the existing exhaust ductwork to optimize air flow distribution from all animal rooms and support areas. Then, we installed variable air volume control dampers. These balance air flow and optimize energy use based on occupancy patterns.
2
Plant-Based Spray Deodorization (Stage 1)
Next, the exhaust passes through a spray deodorization tower. Here, a natural plant-based deodorizing solution treats the air. This eco-friendly deodorant, derived from plant extracts, effectively neutralizes ammonia, H2S, and other water-soluble odorous compounds through biochemical reactions.
3
UV Photocatalytic Oxidation (Stage 2)
Subsequently, the air flows through a UV photolysis chamber. This chamber features high-efficiency UV-C lamps and nano-TiO2 photocatalyst panels. The advanced oxidation process decomposes residual organic odor compounds, mercaptans, and VOCs into harmless carbon dioxide and water.
4
Energy-Efficient Fan & Control
Finally, a high-efficiency centrifugal fan with variable frequency drive (VFD) provides the system draft. It automatically adjusts speed based on real-time air flow requirements. Additionally, the PLC control system optimizes energy use while maintaining consistent treatment performance.
Animal laboratory exhaust treatment system at Shandong pharmaceutical factory
Waste gas purification system for Shandong pharmaceutical animal room
Plant-Based Deodorization Advantages
The plant-based spray deodorization system uses a natural deodorant from tea tree, eucalyptus, and other botanical sources. Unlike chemical-based deodorants, the plant-based solution is non-toxic, non-corrosive, and environmentally friendly. Moreover, it works by breaking down odor molecules through enzymatic and biochemical reactions rather than simply masking odors.
Importantly, this approach suits pharmaceutical facilities well. It introduces no additional chemical contaminants into the exhaust stream and produces no hazardous byproducts. Furthermore, the deodorant solution is biodegradable. Facility staff can handle it safely, simplifying operation and reducing chemical management requirements.
Key Equipment Used
Specifically, the Shandong pharmaceutical animal room deodorization system features Soto Machinery’s reliable and energy-efficient waste gas treatment equipment.
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UV Photolysis Waste Gas Purifier
Energy-efficient UV-C photocatalytic oxidation system with nano-TiO2 catalyst for decomposing organic odors and VOCs in pharmaceutical animal facilities.
Learn More →💧
Spray Deodorization System
Spray deodorization system with natural plant-based deodorant for eco-friendly removal of ammonia, H2S, and odorous compounds from animal facility exhaust.
Learn More →Project Results
Since its successful commissioning, the system has operated continuously with outstanding stability and efficiency. Indeed, performance monitoring and third-party testing confirmed the following results:
Stable
24/7 Operation
Low
Energy Consumption
GB14554-93
Standard Compliance
91%+
Odor Removal Efficiency
Verified Performance
Third-party environmental testing confirmed that all emission parameters fully meet the requirements of GB14554-93 Class II standard. Specifically, ammonia removal efficiency exceeds 92%. Furthermore, hydrogen sulfide removal reaches 95%, and overall odor concentration removal rate stays consistently above 91%. The client reported that the system has operated without any performance issues since installation.
Additionally, energy consumption stayed lower than expected, thanks to the VFD-controlled fan and optimized system design. The plant-based deodorant proved cost-effective, with refill intervals longer than initially projected. Moreover, the client’s facilities team took over routine system operation and maintenance after a brief training session. Our service engineers provided this training. Overall, the successful outcome has strengthened the client’s confidence in Soto Machinery as their trusted environmental equipment supplier.
Project Gallery
Browse photos from the project installation, equipment, and system commissioning.
Shandong pharmaceutical animal room UV deodorization system
Odor control equipment for Shandong pharmaceutical animal facility
Animal laboratory exhaust treatment system at Shandong pharmaceutical factory
Waste gas purification system for Shandong pharmaceutical animal room
Animal room deodorization equipment at Shandong pharmaceutical facility
UV photolysis unit for Shandong pharmaceutical animal facility exhaust
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