4x2 Electric Sewage Treatment Vehicle is jointly developed by Chengli and Guangdong Yuegang Chemical Technology. It uses Geely 4.5T electric chassis with 62kWh Zhixin LFP battery and permanent magnet motor (55kW rated,110kW peak). This Pure Electric Sewage Treatment unit offers zero emission, low noise and stable range for mobile on-site operation. It integrates sampling, testing, hazardous waste pre-treatment and data traceability, needing no fixed infrastructure for on-site Sewage Treatment instead of conventional sewage transport. Digital control provides traceable data to meet environmental compliance. Fast deployment and low cost prevent secondary pollution, fit for industrial wastewater, scattered sewage and lab waste liquid for green low-carbon production.