Sludge reduction method by using ozone

A sludge reduction and ozone technology, which is applied in the oxidation treatment of sludge, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problem of disregarding sludge disposal, complex operation and management, and exposure to the wilderness. problems, to achieve the effect of improving sewage treatment efficiency, good reduction effect, and speeding up cleaning

Inactive Publication Date: 2017-05-10
ZHEJIANG BUSINESS TECH INST
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Problems solved by technology

my country's sludge treatment and disposal technology is seriously lagging behind sewage treatment, with high energy consumption and complicated operation and management. The sludge treatment facilities of many sewage treatment plants have become decorations. In practice, small-scale sewage treatment stations usually do not consider sludge disposal. The problem is that most of the sludge is sent to the landfill or directly exposed to the wilderness after being treated by a simple process of gravity concentration and mechanical dehydration, causing serious secondary pollution

Method used

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  • Sludge reduction method by using ozone
  • Sludge reduction method by using ozone
  • Sludge reduction method by using ozone

Examples

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Embodiment Construction

[0044] Such as Figure 1 to Figure 4 Shown, be a kind of sludge reduction method utilizing ozone of the present invention, comprise the steps:

[0045] 1) Filtration treatment of sewage:

[0046] a. Transport the sewage to the water inlet of the filter tank through the sewage conveying pipe, and control the amount of sewage entering the filter tank and the sewage treatment rate through the flow control valve on the water inlet;

[0047] b. The sewage entering the filter tank will filter and remove the suspended solids and impurity particles in the sewage through the filtering effect of the filter screen. At the same time, the horizontal control box above the filter tank controls the cleaning block on the guide rod to move back and forth, so that Impurities on the net are removed to prevent impurities from entering the pipeline and causing pipeline blockage;

[0048] c. While the horizontal control box is working, the vertical control box drives the rotation of the screw thro...

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Abstract

The invention discloses a sludge reduction method by using ozone. The sludge reduction method comprises the following steps of (1) filtering of sewage; (2) aeration treatment of sewage; (3) settling and separation of the sludge; (4) ozone treatment of the sludge. The sludge reduction method has the advantages that the structure is simple, and the practicality is strong; by utilizing the ozone technique, the net sludge increasing amount is equal to the inorganic sludge amount in the sewage treatment process, so that the purpose of reducing the remained sludge is realized; in addition, the working efficiency is high, the energy loss is low, the secondary pollution is avoided, the reduction effect of the sludge is obvious, and the comprehensive utilization rate is effectively improved.

Description

technical field [0001] The invention relates to a sludge reduction method using ozone. Background technique [0002] my country's urban sewage plants have grown rapidly both in number and scale, and the ensuing problems have become increasingly prominent. The amount of excess sludge has increased rapidly. How to efficiently treat and dispose of excess sludge has become a technical problem. The remaining sludge produced by urban sewage plants contains a variety of pollutants and needs to be properly disposed of, otherwise it will cause great harm to the environment. Sewage sludge treatment and disposal is an important part of sewage treatment, and the cost of sewage sludge treatment and disposal is relatively high. In my country, the investment in sludge treatment only accounts for a small part of the total investment in sewage treatment plants, but in developed countries such as Canada, the United States, Japan and European countries, the investment in sludge treatment has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F11/06
CPCC02F1/001C02F3/02C02F11/06
Inventor 陶陪
Owner ZHEJIANG BUSINESS TECH INST
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