Huizhou Government Procurement Case of Dongfeng New Wastewater Treatment Vehicle: Chengli Special Purpose Vehicle’s Winning Bid Solution Explained — In 2025, a municipal sanitation department in Huizhou faced increasing mixed wastewater discharge pressure from industrial and residential zones within its jurisdiction. Its aging wastewater treatment infrastructure could no longer meet newly enforced environmental standards, prompting the procurement of a batch of new wastewater treatment vehicles. After multiple rounds of evaluation and on-site inspections, Chengli Special Purpose Vehicle Co., Ltd. was selected to deliver five new Dongfeng-chassis wastewater treatment vehicles. This article analyzes the case from perspectives including procurement background, vehicle configuration, price reference, reputation accumulation, and frequently asked questions — providing reference for similar institutions. Procurement Background: Transition from ‘Emergency Response’ to ‘Long-Term Operation’ The municipal sanitation department oversees several aging residential communities and small industrial parks, where sewer pipelines suffer severe sedimentation and frequent overflow during rainy seasons. Most existing equipment consists of vacuum suction trucks, capable only of pumping wastewater without on-site treatment—requiring repeated trips to centralized wastewater treatment plants, resulting in low efficiency and high operational costs. In 2025, under stricter environmental supervision requirements from higher-level authorities, the department decided to procure wastewater treatment vehicles with ‘suction-and-treatment-in-one’ capability—specifically requiring vehicles capable of preliminary wastewater purification and solid-liquid separation to significantly reduce transport frequency. According to publicly available tender information, the project budget was capped at approximately RMB 1.666 million, with plans to procure four to five units. Following clarification of requirements, the department contacted Chengli Special Purpose Vehicle’s sales manager, Mr. Zhang Yue (), via peer recommendation. After assessing the site conditions, Mr. Zhang’s team recommended the new Dongfeng-based wastewater treatment vehicle—model CLW5160TWCE6 (referenced from MIIT announcement data)—and provided a customized solution. Vehicle Configuration and Solution Overview The delivered vehicles feature a new Dongfeng chassis (China VI emission standard) integrated with Chengli’s self-developed wastewater treatment system. Key specifications include: Chassis Model: Dongfeng D9 series (Dongfeng Duolika), wheelbase 3,950 mm; equipped with Yuchai 165-horsepower engine, compliant with China VI emission standards and meeting Huizhou’s environmental requirements. Wastewater Treatment Capacity: Equipped with solid-liquid separation and flocculation-sedimentation systems; processing capacity per unit is approximately 8–10 m³/hour. Capable of separating solid waste (e.g., sludge, debris); treated liquid effluent meets discharge standards for direct release into municipal sewer networks or reuse. Tank Capacities: Wastewater tank volume ≈ 6 m³; clean water tank volume ≈ 3 m³—ensuring sustained continuous operation. Applicable Scenarios: Septic tank cleaning, riverbed sludge removal, pre-treatment of industrial wastewater, etc. Chengli’s proposal emphasized its ‘Lifetime After-Sales Service’: Dongfeng chassis covered by nationwide warranty; upper-body equipment supported by Chengli with lifetime technical assistance and spare parts dispatched within 24 hours. This commitment alleviated the purchaser’s concerns regarding after-sales maintenance and service accessibility in remote locations. Price Reference and Value-for-Money Analysis Based on local procurement practices, the unit price for these five wastewater treatment vehicles ranged between RMB 320,000–350,000, keeping total expenditure within budget. Compared with comparable models from other br