AN EQUIPMENT FOR SOLID SEPARATION IN SEWAGE LINE

The accumulation of solid waste in sewage systems poses a major challenge to sanitation and public health, often leading to blockages, stagnant water, and labour-intensive cleaning efforts. This project presents the design and fabrication of a mechanical system to separate solid waste from sewage using a chain-and-bucket conveyor mechanism. The setup includes two slanted fixed screens - the lower screen is submerged in sewage to capture solid debris, while the upper screen prevents collected waste from falling back into the flow. Solid waste is lifted using a conveyor system driven by an induction motor, with its speed regulated using a Voltage Regulator Dimmer (VRD) for simple and cost-effective control. The waste is then deposited into a removable dustbin mounted at the discharge end. Constructed with mild steel and assembled through arc welding, the system demonstrated a collection efficiency of 85-90% in test conditions. The equipment offers a low-cost, reliable, and safer alternative to manual sewage cleaning, enhancing hygiene and supporting sustainable waste management in urban drainage systems.

Autorentext

Sankara Narayana Murthy, Doing research in Renewable energy and Waste water treatment plants, 3D printing.