A sewage sludge treatment system and its environmental protection reuse method

Abstract

A sewage sludge treatment system and its environmental protection reuse method, comprising a collection pool (1), characterized in that: the bottom of the collection pool (1) is connected to a sludge treatment device (2), and the sludge treatment device ( 2) There is a discharge port at the bottom, a control valve (7) is installed on the discharge port, a sludge settling cylinder (5) is installed directly below the discharge port, and more than one drain is installed on the outside of the sludge settling cylinder (5). The oxygen reaction device (6), the outlet of the reaction sludge dehydration device (12) is connected with the coulter mixer (14) through the screw conveyor (13), and the bottom outlet of the coulter mixer (14) is connected with the filter press device ( 16) are connected, the filter press device (16) is connected with the water reducing and pelletizing machine (19), the cost of sewage sludge treatment in the present invention is relatively low, and the separation of sewage and sludge can be completed with low energy consumption, and sewage sludge The energy recovery and utilization rate has been improved, and the effect of energy saving and environmental protection is remarkable.

Description

technical field [0001] The invention relates to a sewage sludge treatment system and a reuse method thereof, in particular to a sewage sludge treatment system and an environment-friendly reuse method thereof, belonging to the technical field of sewage treatment. Background technique [0002] With the acceleration of industrialization and urbanization, people will produce a large amount of sewage sludge in their production and life, and the direct discharge of sewage sludge into rivers, lakes and seas will cause great pollution. With the development of sewage sludge treatment technology up to now, how to carry out environmental protection treatment of sewage sludge is still a technical difficulty, especially to ensure the quality of effluent after treatment, and at the same time recycle the energy in sewage sludge and form valuable The end product is very important. Most of the traditional sewage sludge treatment adopts a single biological fermentation, drying or membrane se...

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Problems solved by technology

[0003] The purpose of the present invention is aimed at the low treatment efficiency and high treatment cost of the existing sewage sludge treatment equipment, it is difficult to complete the separation of sewage and sludge with low energy consumption, the energy recovery and utilization rate in sewage sludge is not high, and The water quality of the treated effluent is difficult to meet the discharge standard, and the energy-saving and environmental protection effects are not good. Now we provide a kind of good integrity, low treatment cost, and can complete the separation of sewage and sludge with low energy consumption. The energy recovery utilization rate has been improved, and the treated effluent water quality has reached the discharge standard, a sewage sludge treatment system with remarkable energy saving and environmental protection effects and its environmental protection reuse method

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