Eco-friendly Noise-absorbing Panels from Waste Materials: A Sustainable Solution to Control Noise Pollution

This research article deals with one of the major forms of pollution that is invisible but is a threat to living beings. Controlling noise pollution is important so to deal with this, a test was performed using a method known as the impedance tube method. To tackle this noise pollution a sustainable material would be good to use, so waste coming from food industries such as orange peel, sugarcane husk, and eggshells are used with newspaper sludge as a binding material. Disks were prepared of 90mm with different constituents of waste material and paper sludge. The test result showed that these panels were able to reduce sound coming from the source to the receiver side. Sound absorption capacity is different for every material depending upon their structural features. The test was done with 120 decibels of sound and at 120 decibels the SAC (sound absorption coefficient) was 0.35 which is better than other commercially available chemical-infused materials such as glass wool, mineral wool etc. As they are not better for the environment as well as living around. They cause lung disease if inhaled and skin problems come in contact with them. Materials in use for soundproofing have polyurethane which releases a high amount of smoke if brunt hence we cannot rely on this in case of fire. Hence environmentally friendly as well as materials that do not catch fire or realise high amounts of smoke and are also cost-effective should be used to reduce noise pollution in the environment we are living in.