System for resource utilization and comprehensive treatment of organic sludge and treatment system of system

Abstract

The invention discloses a system for resource utilization and comprehensive treatment of organic sludge. The system comprises a thermodynamic wall-breaking process section, a plate-frame solid-liquidseparation process section, a closed drying process section, a thermal cracking catalytic process section and a separation liquid low-temperature separation and concentration process. Energy can be utilized reasonably, and low-cost, harmless and resourceful treatment of the organic sludge can be achieved. The invention also discloses a treatment method of the system for resource utilization and comprehensive treatment of the organic sludge.

Description

technical field [0001] The invention relates to a comprehensive treatment system for organic sludge resource utilization and its treatment method, which belongs to the technical field of organic sludge treatment and disposal produced in the process of organic wastewater or sewage treatment, and specifically relates to the comprehensive sewage treatment of urban sewage treatment plants and industrial parks The treatment and disposal of the sludge produced in the biochemical degradation process of the plant and some organic wastewater treatment systems and the organic sludge produced in other processes. Background technique [0002] At present, with the advancement of urbanization, the treatment and disposal of urban sewage plant sludge has gone through a relatively short period of time from direct landfill, sludge organic fertilizer resource utilization to various reduction technologies and incineration technologies. , showing the phenomenon of a hundred schools of thought co...

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Problems solved by technology

However, due to the addition of a large amount of water in this method (the amount added is about 3 times the amount of sludge), the heat energy required by the entire process is greatly increased.

The treatment of the solid phase sludge after obtaining the separation liquid is still unresolved. The solid phase sludge still contains a large amount of organic matter, so the process integrity is not enough, and the sludge has not been completely harmless.

[0006] The fourth traditional process is to use sludge carbonization technology to realize the resource utilization of sludge. The main problems are as follows: First, the carbonization process has high requirements on the moisture content of sludge, so it must be equipped with sludge drying technology, and the process integrity is not enough, and If it is equipped with a drying process, because the calorific value of the sludge itself is not enough to support the heat energy required for sludge drying, the treatment cost is relatively high; the second is that the carbonization process is a process of cracking and gasification of organic matter, and the treatment of a large amount of organic waste gas generated by carbonization Or incineration will form a large amount of pollutants, especially dioxins, which need to be equipped with a complex treatment system to achieve standard discharge; third, peat after sludge carbonization is generally used as incineration raw materials, and the problem of heavy metals in sludge has not been solved. If incineration It will bring heavy metal pollution to the exhaust gas, and if it is used as fertilizer, it will bring heavy metal pollution to the soil

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