Sludge treatment method

A sludge treatment and sludge technology, applied in dehydration/drying/concentration sludge treatment, combustion methods, separation methods, etc., can solve the problems of complicated sludge treatment steps and serious odor, and achieve the goal of reducing odor emission Possibility, energy saving, effect of improving drying rate

Inactive Publication Date: 2012-10-10
BEIJING GUOTONG HUANYU TECH
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Problems solved by technology

[0005] The present invention aims to provide a sludge treatment method to solve the tec

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  • Sludge treatment method

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[0013] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0014] According to a typical embodiment of the present invention, a sludge treatment method is provided. The sludge treatment method includes the following steps: 1) drying the sludge with hot air; 2) incinerating the dried sludge, and outputting the high-temperature flue gas generated during the incineration process as a sludge drying of thermal air. Applying the technical scheme of the present invention to dry the sludge with hot air flow overcomes the technical prejudice in the prior art that the sludge is too wet to be dried with hot air flow. On the one hand, the drying rate is greatly improved. On the other hand, , because of the hot air flow used, the drying time is shorter, which can r...

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Abstract

The invention provides a sludge treatment method. The method comprises the following steps: (1) drying the sludge by using a hot air flow; and (2) carrying out burning treatment on the dried sludge and outputting the high temperature fume generated during the burning treatment process to be used as the hot air flow for drying the sludge. With the adoption of the technical scheme of the invention, the sludge is dried by using the hot air flow, thus the technical prejudice that the sludge cannot be dried by using an air flow due to high humidity in the prior art is eliminated; on the one hand, the speed rate of drying is improved greatly; on the other hand, as the hot air flow is adopted, the time for drying is short, and the probability of odor diffusion is reduced; and in addition, the high temperature fume generated during the burning treatment process can be used as the hot air flow for drying the sludge, so that the utilization efficiency of the heat is improved, and the energy is saved.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a sludge treatment method. Background technique [0002] Sludge, a kind of solid waste, is the precipitated matter produced during the sewage treatment process and the residue floating out of the sewage. The composition of sludge is complex. Although it contains a large amount of available components such as nitrogen and phosphorus, it also contains toxic, harmful, and refractory organic matter, pathogenic bacteria, parasite eggs, and heavy metals. In recent years, with the acceleration of the urban process and the improvement of the sewage treatment rate, the sludge production has increased sharply. The sludge drying and incineration is the most thorough treatment method for sludge. Its biggest advantage is that it can quickly reduce the volume of sludge to the greatest extent. Sludge drying and incineration technology has a history of decades in Europe. With the incr...

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Application Information

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IPC IPC(8): C02F11/12B01J2/00B01D45/12F23G7/00
Inventor 张鉴铭
Owner BEIJING GUOTONG HUANYU TECH
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