A small-sized community sewage treatment plant serves populations from a few dozen to several thousand residents, typically in rural areas, suburban subdivisions, or isolated facilities like schools or military bases. These plants require equipment that is compact, highly reliable, and easy to maintain, often by personnel with broad responsibilities rather than dedicated wastewater engineers. The technology must be simple yet effective to ensure consistent compliance without excessive operational complexity. Primary sedimentation is a common and crucial process in these plants. The sludge scraper in this unit is a key mechanical component whose failure can cripple the entire treatment process. For these communities, Huake's non-metallic sludge scrapers offer a perfect solution. Their primary advantage is an exceptionally long service life with virtually zero maintenance required beyond routine inspections. This eliminates the need for specialized technicians to perform frequent repairs or the community to stock spare parts. The corrosion-resistant construction ensures the scraper will continue to function effectively even if the plant experiences variable loads or occasional influxes of harsh cleaning agents from the community. By choosing this robust equipment, a small community can significantly reduce its long-term operational costs and avoid the stress and expense of emergency equipment failures. This allows the plant operators to focus on other aspects of management, secure in the knowledge that their primary sedimentation process is handled by the most dependable equipment available.