abstract |
The method of treating organic wastes according to the present invention is characterized by adding pineapple processing by-products, an extract of pineapple processing by-products, or an extract of pineapple processing by-products when the organic waste is treated by anaerobic digestion. The pineapple processing by-product, the pineapple processing by-product extract or the pineapple processing by-product extract of the present invention contains proteolytic enzymes such as bromelain, and is suitable for the treatment of organic wastes containing proteins. In addition, because the pineapple processing by-product is a resource that is dumped into the waste, the method of the present invention can ensure superior economical efficiency from a commercial point of view in the treatment of organic waste. In addition, when organic waste is treated by anaerobic digestion, the addition of pineapple processing by-product, pineapple processing by-product extract, or pineapple processing by-product extract can improve protein hydrolysis efficiency and promote biogas production. |