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A method of conditioning sludge

A sludge and microwave technology, applied in sludge treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of increased cost of corrosion equipment, secondary pollution of the environment, etc., to avoid secondary pollution, Improves dehydration, easy-to-achieve results

Active Publication Date: 2016-07-06
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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Problems solved by technology

The current sludge conditioning technology is mainly based on the chemical method, because the chemical method is simple to operate and low in investment cost, but this method needs to add a conditioner to the sludge, which may increase the cost of corrosion equipment and easily cause secondary pollution to the environment. secondary pollution

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Embodiment Construction

[0009] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0010] The embodiment of the present invention provides a method of conditioning sludge, which is a method of combining ultrasonic and microwave conditioning to improve sludge dehydration. The method includes the following steps:

[0011] Using a reaction device equipped with ultrasonic equipment and microwave equipment;

[0012] Set the sludge to be conditioned in the reactor of the reaction device, extend the ultrasonic probe of the ultrasonic equipment into the sludge, and place the sludge in the radiation area where the microwav...

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Abstract

The invention discloses a method for conditioning sludge and belongs to the field of sludge treatment. The method includes: using a reaction device equipped with ultrasonic equipment and microwave equipment; placing the sludge to be conditioned in the reactor of the reaction device, extending the ultrasonic probe of the ultrasonic equipment into the sludge, and placing the sludge in the microwave equipment In the microwave radiation area; make the ultrasonic equipment emit ultrasonic waves according to the set ultrasonic power and time, and make the microwave equipment emit microwaves according to the set microwave power and time, and improve the dehydration of sludge under the dual effects of ultrasonic waves and microwaves Character conditioning. The method is simple and easy to implement, and the combined conditioning can significantly change the microstructure of the sludge, and can effectively improve the dewaterability of the sludge after conditioning, without adding chemical conditioning agents, and avoiding secondary pollution to the environment.

Description

technical field [0001] The invention relates to the field of sludge treatment, in particular to a method for conditioning sludge. Background technique [0002] As of the end of March 2014, a total of 3,622 sewage treatment plants have been built in cities and towns in my country, with a sewage treatment capacity of about 153 million cubic meters per day. Sludge is the final product of sewage treatment. It is a heterogeneous body, mainly composed of organic debris, bacterial cells, inorganic particles, colloids, etc., and its composition is very complex. At present, the sewage treatment rate is increasing year by year, and the sludge production is increasing rapidly. The investment and operation costs of sludge treatment are huge, accounting for nearly 25% to 65% of the investment and operation costs of the entire sewage plant. Sludge treatment has become an important part of urban sewage treatment. heavy burden on the factory. Sludge dehydration is the most important step ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00
Inventor 周翠红曾萌杨长顺凌鹰
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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