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Sludge drying process without adding flocculating agent

A technology for sludge drying without adding

Inactive Publication Date: 2020-12-08
张家港市大新污水处理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In some treatment processes, plate and frame filter press equipment is used to filter the sludge, but generally lime and other polymer agents need to be added, resulting in chemical costs

Method used

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  • Sludge drying process without adding flocculating agent
  • Sludge drying process without adding flocculating agent

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] see Figure 1-2 , the present invention provides a technical solution: a sludge drying process without adding a flocculant, which realizes sludge drying through a plate filter press, and the plate filter press includes a box assembly 1 and a plate frame assembly 2 .

[0025] The box assembly 1 includes a filter press chamber 11, the two ends of the filter press chamber 11 respectively have a first support 13 and a second support 15, a first hydraulic cylinder 14 is installed on the top of the first support 13, the second A second hydraulic cylinder 16 is installed on the top of the two ...

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Abstract

The invention is applicable to the technical field of sludge drying, and provides a sludge drying process without adding a flocculating agent, which realizes sludge drying through a plate filter press, and comprises the following steps of: firstly, inputting sludge to be treated into a filter pressing bin, and uniformly distributing the sludge in gaps among plate frame assemblies; starting a firsthydraulic cylinder to make the first hydraulic cylinder extend so as to reduce a gap between the plate frame assemblies to press sludge so that water in the sludge enters a filter tank through a filter plate, and then filtrate flows out through a liquid leakage hole; after the first hydraulic cylinder extends to the limit length, starting a second hydraulic cylinder to make the second hydraulic cylinder extend so as to reduce the gap between the plate frame assemblies so that sludge is further pressed, and the water content of the sludge is reduced. Through two times of pressurization, the filter pressing efficiency is effectively improved through the two hydraulic cylinders, and under the condition that the filter pressing effect is guaranteed, the filter pressing efficiency is improved.The medicament cost is saved.

Description

technical field [0001] The invention belongs to the technical field of sludge drying treatment, and in particular relates to a sludge drying process without adding a flocculant. Background technique [0002] Sludge refers to the solid, semi-solid and liquid waste produced in the process of sewage treatment. It is an inevitable product of sewage treatment plants. It contains a large amount of organic matter, rich in nutrients such as nitrogen and phosphorus, heavy metals, pathogenic bacteria and pathogenic bacteria, etc. , often accompanied by a foul smell, and the number is huge and grows rapidly. The excess sludge has high moisture content, high organic matter content, contains parasite eggs and pathogenic microorganisms, and is perishable and smelly. If it is not treated or treated improperly, it will cause secondary pollution. Therefore, the safe and environmentally friendly disposal of sludge is particularly important. . [0003] In some treatment processes, plate and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/122
CPCC02F11/122
Inventor 黄佳欣
Owner 张家港市大新污水处理有限公司
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