Procurement Case of a Sewage Treatment Truck by a Municipal Sanitation Department in Baotou: In-Depth Interpretation from a Manager’s Perspective. Amid the wave of upgrading sanitation equipment in northern Chinese cities, a district-level municipal sanitation department in Baotou recently completed the procurement and delivery of a batch of new Dongfeng sewage treatment trucks. As the manager directly responsible for fleet operations, I conducted full-process tracking across dimensions including dispatch flexibility, fuel consumption monitoring, and comprehensive operating costs. Below is my authentic experience, shared for reference by peers. I. Procurement Background and Requirements Analysis: By the end of 2025, the department’s aging vacuum trucks failed to meet emission standards and required frequent repairs, necessitating urgent replacement. Internal assessment indicated a need to procure four specialized vehicles with sewage treatment capabilities for sewer network unclogging, septic tank cleaning, and emergency wastewater removal. The budget was capped at approximately RMB 2.435 million (per publicly disclosed tender information). After comparing multiple suppliers, Chengli Special Purpose Vehicle Co., Ltd. was selected to supply Dongfeng-based sewage treatment trucks (Model CLW5070GSSD6, China VI emission standard). This model features a ~3 m³ tank capacity, is built on the Dongfeng Dorcen chassis, and has a wheelbase of 3,308 mm—ideal for narrow urban alleyway operations. II. Fleet Management Director’s Evaluation: Dispatch Flexibility and Real-World Performance: As fleet director, my top priority was whether these vehicles could navigate the complex road conditions of old urban districts. Upon delivery, we immediately deployed them for pre-Spring Festival sewer network inspections. Real-world testing revealed: – Small turning radius: The compact Dongfeng chassis design and ~6-meter vehicle length enabled effortless maneuvering in one-way streets and residential compounds. – High operational efficiency: The corrosion-resistant tank and vacuum pump—capable of maximum suction depth up to 7 meters—reduced average cycle time per operation by ~30% compared to legacy units. – Streamlined dispatch: Integrated intelligent control systems allow operators to complete suction, discharge, and tank cleaning via single-button operation, minimizing manual intervention. During three emergency repair responses, all units arrived on-site within 15 minutes; customer feedback noted they were “more agile than expected.” III. Fuel Consumption Monitoring Data: Real-World Road Test Results: Prior to procurement, our primary concern was potentially higher fuel consumption associated with China VI-compliant models. After three months of actual operation, fuel consumption data for all four units were collected (sourced from onboard telematics systems—not official manufacturer figures): – Mixed driving conditions (70% urban / 30% suburban): Average fuel consumption ≈ 12.5 L/100 km, slightly below Dongfeng’s officially published figure of 13.2 L/100 km (per CLW5070GSSD6 type-approval documentation). – Empty vs. fully loaded operation: ~11 L/100 km when empty; ~14 L/100 km during full-load operations—within acceptable fluctuation range. – Comparison with legacy units (China III vacuum trucks): ~2 L/100 km diesel savings. At current diesel prices (~RMB 7.5/L), each truck traveling 15,000 km annually saves ~RMB 2,250; total annual savings across four units amount to ~RMB 9,000. Table 1: Comparative Fuel Consumption and Operating Costs Between Legacy and Newly Procured Models (Based on Actual Operational Data) Comparison Item | Legacy Unit (China III Vacuum Truck) | Newly Procured Dongfeng Sewage Treatment Truck (CLW5070GSSD6) | Annual Savings per Unit Average Fuel Consumption (L/100 km) | 14.5 | 12.5 | ~2 L Annual Mileage (km) | 15,000 | 15,000 | — Annual Fuel Cost (RMB)