A movable sludge dehydration device and method

Abstract

A movable sludge dehydration device and method are disclosed. The device includes a sludge sucking unit, a chemical soaking unit, a flocculation unit, a dehydration unit, a self-discharging sludge storage unit and an electric control unit which can be mounted to a vehicle as a whole. The sludge sucking unit is connected to the chemical soaking unit, the flocculation unit, the dehydration unit andthe self-discharging sludge storage unit in order through a pipeline. Sludge is fed into the dehydration device through the sludge sucking unit. The sludge subjected to flocculation by the flocculation unit is dehydrated by the dehydration unit. The electric control unit is separately connected to the sludge sucking unit, the chemical soaking unit, the flocculation unit, the dehydration unit and the self-discharging sludge storage unit to provide electrical drive for normal operation of the whole dehydration device. The device integrates sludge sucking, chemical supplying, flocculation, dehydration, storage, transportation and power supply, overcomes a sludge removing and transportation difficult problem for distributed and small-size wastewater treatment facilities, particularly rural wastewater treatment facilities, and allows the amount of sludge removing and transportation to be reduced, thus facilitating further centralized and resource-recovering treatment of the sludge.

Description

technical field [0001] The invention relates to the technical field of sludge dewatering, in particular to a mobile sludge dewatering device and method. Background technique [0002] When the sewage plant treats sewage, a large amount of sludge is produced every day. The sludge contains a large amount of easily decomposed organic matter, which has the potential to pollute the environment, and has a certain impact on the water treatment equipment, and even causes the equipment to fail to operate normally. However, the traditional sludge treatment method has a high moisture content, a large volume, difficult transportation, and stacking damages the environment. Therefore, before the sludge is transported, dehydrating the sludge to reduce the moisture content, reduce the organic matter content and reduce the volume weight has become an effective method for sludge treatment. [0003] Due to the scattered and small-scale rural water treatment facilities in my country, sewage tre...

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Problems solved by technology

[0003] Due to the scattered and small-scale rural water treatment facilities in my country, sewage treatment plants cannot build sludge treatment facilities for this situation. Therefore, the current sludge treatment methods are crude and simple, which greatly affects the rural ecological environment.

[0004] The existing sludge dehydration treatment is mainly based on the large-scale dehydration production line of the sewage treatment plant. The dehydrators are in the form of a centrifugal type and a plate-and-frame type. These two types of dehydration machines are large in size and power consumption, and need to be equipped with a pump room , medicine supply tanks, etc.

For distributed and small-scale sewage treatment facilities, the amount of sludge produced is small, the cost of building a sludge dehydration workshop is high, and the relative benefit is low. The volume of sludge removal and transportation is large and the moisture content is high.

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