Sludge special-conveying system and method

Abstract

The invention discloses a sludge special-conveying system and method. The system comprises a sludge special-conveying center, a split type sludge conveying vehicle, a split type sludge conveying vehicle head, sewage treatment plant sludge dewatering workshop sites, split type sludge conveying vehicle carriages and sludge treatment points. A sewage treatment plant sludge dewatering workshop is provided with a first site carriage, a second site carriage, a third site carriage and a fourth site carriage or more. Each sewage treatment plant sludge dewatering workshop site is at least provided with two split type sludge conveying vehicle carriages, wherein one split type sludge conveying vehicle carriage is in the working state of being loaded with sludge and achieving the storage function, and the other split type sludge conveying vehicle carriage is in the state of being to be loaded with sludge. The sludge treatment points comprise the sludge treatment point A and the sludge treatment point B or more. A technical support is provided for building a sludge special-conveying right system and operation of the system, secondary pollution of sludge to the ecological environment can be controlled from the source, and it is ensured that an effective supervisory responsibility is performed on sludge harmless, reduction and resourceful treatment.

Description

technical field [0001] The invention relates to the field of sewage and sludge treatment, in particular to a sludge special transportation system and a method thereof. Background technique [0002] By the end of 2014, my country had accumulatively built more than 4,400 urban sewage treatment plants. [0003] The treatment capacity reaches 157 million cubic meters per day. During the purification process of urban domestic sewage and industrial wastewater, a large amount of sludge will be produced, and the resulting sludge volume (80% moisture content) will reach 40 million tons per day. years, and increase at a rate of 10-15% per year. [0004] Sewage treatment plant sludge is a solid-liquid mixture containing pathogenic microorganisms, various organic and inorganic pollutants, and heavy metals. It is a type of extremely harmful solid waste. If it is not treated and controlled thoroughly, it will Cause serious secondary pollution to the environment. How to safely and econo...

AI Technical Summary

Problems solved by technology

In the sludge dehydration workshop of the sewage treatment plant, the moisture content of the sludge after mechanical dehydration is generally about 80%. At this time, the physical properties of the sludge are in a semi-fluid state due to the large amount of free water. The volatile substances in the sludge will release odorous gases. These basic characteristics of the sludge bring technical difficulties to the long-distance safe transportation, especially during the sludge transportation. There are hidden dangers, and the odorous gas emitted from the sludge has a negative impact on the surrounding atmospheric environment

[0006] The traditional sludge transportation method is that after the sludge from the sewage treatment plant is mechanically dehydrated by belt filter press, plate and frame filter press or screw dehydrator, it is first piled up in the sludge storage space provided by the sludge dewatering workshop. After reaching a certain amount, it will be loaded into a sludge transport vehicle through a transfer tool, and transported to the place where the sludge is centrally disposed. Since the sludge will continuously emit odorous gas due to long-term exposure to the air during the stacking period, this It not only makes the on-site operators have to work in the harsh production environment, but also affects the quality of the surrounding air environment

[0007] At present, the status quo of sludge treatment in my country is that in the sludge treatment system composed of sludge generation-sludge transportation-sludge treatment and other links, since the source control from the sludge transportation has not been realized, so , when the sludge is produced from the sewage treatment plant, except for a small part of the professional treatment, most of them are in a state of disorder, which makes it impossible for local functional departments at all levels to monitor the real whereabouts of the sludge, and it is difficult to truly treat the sludge harmlessly Fulfilling supervisory responsibilities, resulting in the random dumping of a large amount of sludge, causing serious damage to the local ecological environment, offsetting the environmental benefits brought by sewage treatment, and what is more serious is that the sewage in the sludge seeps down, causing groundwater resources to be polluted beyond recovery

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