Internally Fed Rotary Drum Filters for US Wastewater Industrial Pretreatment

Rotray Drum Screen July 9, 2026 Internally Fed Rotary Drum Filter

📍 United States · 🚰 Wastewater Treatment · 📦 Internally Fed Rotary Drum Filter

Proven performance on challenging high-grease wastewater drives repeat bulk orders. This case from a US wastewater treatment client shows how we iterated on equipment specifications for septic waste pretreatment, turning an initial replacement request into a 10-unit repeat purchase.

Client’s Project Background & Requirements

The client operates in the US wastewater treatment industry, requiring i for industrial pretreatment. The units will replace their existing equipment and support newly built plants, handling high-grease and septic waste streams.

Initial Core Demands

Application: Industrial pretreatment of grease and septic waste
Purpose: Replace current units + equip new facilities
Design flow: 500 GPM (approx. 113.6 m³/h)
Filtration precision: 1 mm
Construction material: 304 stainless steel

Solution Design & Specification Optimization

Initial Recommendation

We first recommended the Model 1200 Internally Fed Rotary Drum Filter (1200*4500, SS304) as a baseline fit for the initial 500 GPM requirement.

Given the high grease content in the feed, we intentionally selected an oversized model to reduce gap clogging risks. Our internally fed rotary drum filter features a perforated screen surface, delivering up to 98% interception rate while maintaining stable operation on greasy wastewater.

Iterative Adjustment for Higher Capacity

The client later expressed interest in higher-capacity models. We introduced corresponding sizes in detail, and worked closely with the client through multiple rounds of revisions on flow rate and filtration precision.

After thorough technical communication, the client finalized the upgraded specification:

Model JXN-1500*6000 Internally Fed Rotary Drum Filter

Filtration precision: 4.5 mm
Rated capacity: 2000 GPM
Construction: SS304 stainless steel
Equipped with stainless steel nozzles

Customization Confirmation

The client requested two custom modifications: gear-driven transmission and upgraded nozzle material. Both adjustments were confirmed as fully feasible.

Project Outcome

The client placed the first order for 8 units of JXN-1500*6000 SS304 internally fed rotary drum filters. Shortly after receiving and commissioning the equipment, the client placed a second order for another 2 identical units, bringing the total to 10 units — a clear validation of the equipment’s reliable performance on high-grease septic waste.

📸Take a look at what we delivery:

Full Project Workflow

Client submits replacement & expansion demand for grease septic wastewater pretreatment
Recommend Model 1200 unit, with perforated screen and anti-clogging sizing logic explained
Walk client through higher-capacity models, support multiple rounds of flow & precision adjustments
Finalize Model 1500*6000 spec, confirm gear drive and nozzle material customization
Fulfill first 8-unit order; client places 2-unit repeat order after delivery
Total 10 units deployed for the client’s existing and new facilities

If you need internally fed rotary drum filters for wastewater pretreatment, grease-laden sewage treatment or equipment replacement & expansion projects, we can provide custom-sized SS304/SS316 solutions tailored to your flow rate and material properties.

📢 Any requirements? Contact us now!

💼 Grace

📩 Email: grace@filtrationchina.com

📱 Mobile / WhatsApp / WeChat: +86 17269571160

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