Advanced treatment process for waste rotten lemons

Abstract

The invention belongs to the technical field of waste rotten lemon treatment, and provides an advanced treatment process for waste rotten lemons. The process comprises the following steps: (1) removing impurities from the waste rotten lemons to prepare organic suspension slurry; (2) carrying out oxidation reaction on the organic suspension slurry and air or oxygen in an oxidation reactor under the conditions that the temperature is 160-280 DEG C and the pressure is 0.5-7 MPa for 0.5-2 hours to obtain an oxide material; and (3) carrying out solid-liquid separation on the oxide material to obtain a solid mud cake and clarified oxidation liquid. According to the advanced treatment process for the waste rotten lemons provided by the invention, bacteria and viruses in the waste rotten lemons can be thoroughly killed, the weight of the obtained solid mud cakes is 5% or below of the weight of the original waste rotten lemons, the water content of the solid mud cakes is smaller than 40%, and highly-reduced, harmless and resourceful treatment of the waste rotten lemons can be achieved.

Description

technical field [0001] The invention belongs to the technical field of waste rot lemon treatment, and in particular relates to an advanced treatment process of waste rot lemon. Background technique [0002] During the production, storage and sales of lemons, a large amount of waste rot lemons will be produced. Waste rot lemons have high water content and organic matter content, and contain a large amount of acidic substances such as citric acid, which are easily spoiled and deteriorated, resulting in a large amount of odor and leachate, which are harmful to the ecological environment and human and animal health, and are easy to become mosquitoes, flies, A place where mantises, animal and plant pests, and rats live. Therefore, waste rot lemons need to be handled properly. [0003] At present, the following methods are usually used to process waste rot lemons: (1) Sanitary landfill technology: its advantages are low cost, simple and easy to implement, but its disadvantages a...

AI Technical Summary

Problems solved by technology

[0003] At present, the following methods are usually used to process waste rot lemons: (1) Sanitary landfill technology: its advantages are low cost, simple and easy to implement, but its disadvantages are that it occupies a large area and produces a large amount of odor and leachate, which is harmful to the surrounding area. Great environmental impact; (2) Aerobic fermentation (composting) technology: its advantages are low investment and operating costs, certain sterilization and anti-virus functions, and resource utilization can be realized, but the disadvantages are long production cycle, large land occupation, and A large amount of odor and leachate, large NIMBY benefits, unstable product quality, and lack of stable outlets; (3) Anaerobic fermentation technology: its advantage is that it has certain sterilization and antivirus functions, and it can realize resource utilization, but its disadvantages (4) Incineration technology: its advantages are the most thorough reduction and sterilization, but the disadvantages are high investment and high water content, which lead to incineration. High operating costs, secondary pollution such as flue gas, dioxin, fly ash, etc., difficulty in site selection and approval