Catalytic dehydration method for sludge

A catalytic dehydration and sludge technology, applied in the direction of oxidation treatment of sludge, dehydration/drying/concentrated sludge treatment, etc., can solve the problems of sludge microstructure damage to cell walls, limited current action time, low current utilization efficiency, etc., to achieve The effect of sterilization and deodorization is obvious, the scale of the equipment is small, and the device is easy to start and shut down.

Inactive Publication Date: 2016-02-10
KUNSHAN MAYMUSE ENVIRONMENTAL TECH
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Problems solved by technology

The disadvantages are that the equipment structure is more complex, the current action time is limited, the current utilization efficiency i

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  • Catalytic dehydration method for sludge
  • Catalytic dehydration method for sludge
  • Catalytic dehydration method for sludge

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Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0031] The inventive idea of ​​the present invention is as follows: the oxidant is mixed with the sludge to be treated, and the catalytic oxidation device is used to provide an electrocatalytic effect to promote the oxidation of the oxidant to the sludge, so as to change the microstructure of the sludge and break its cell wall to improve the quality of the sludge. Dehydration performance: use the action of an external electric field to oxidize directly on the surface of the anode or generate strong oxidants such as hydroxyl radicals to in...

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Abstract

The invention discloses a catalytic dehydration method for sludge. The catalytic dehydration method comprises the steps of putting the sludge to be treated into a catalytic oxidation device, then, thoroughly mixing the sludge to be treated with an oxidant, carrying out thorough catalytic oxidation under the action of electrocatalysis, and then, carrying out flocculation and pressure-filtration treatment on the sludge subjected to the catalytic oxidation, wherein the catalytic oxidation device comprises a catalytic oxidation chamber, a cathode, an anode and a direct-current power supply, the catalytic oxidation chamber is provided with a material inlet and a material outlet, and the cathode and the anode are connected with corresponding poles of the direct-current power supply and are arranged in the catalytic oxidation chamber; and the sludge to be treated is fed from the material inlet and is output from the material outlet. According to the catalytic dehydration method, secondary pollution is seldom generated, and the efficiency of energy is high; and reactor equipment is small in scale, the floor area is small, the startup and closedown of devices are convenient, and sterilizing and deodorizing actions are obvious.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a sludge treatment method. Background technique [0002] With the rapid development of economy and society and the gradual improvement of people's quality of life, the discharge of industrial wastewater and domestic wastewater is increasing day by day. Activated sludge method is a process commonly used in various sewage treatment plants at present. It has the characteristics of mature technology, stable process, high treatment efficiency, and low operating cost, but at the same time it will also produce a certain amount of excess sludge, and the amount of excess sludge Disposal costs account for more than 50% of the operating costs of the entire sewage treatment plant. [0003] According to China Water Network's "China Sludge Treatment and Disposal Market Analysis Report (2013 Edition)", by 2015, my country's annual surplus sludge (containing 80% moisture) output will exc...

Claims

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Application Information

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IPC IPC(8): C02F11/12C02F11/06C02F11/14
Inventor 左卫雄颜登科刘雅妮
Owner KUNSHAN MAYMUSE ENVIRONMENTAL TECH
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