City sludge comprehensive utilization

A sludge and sludge incineration technology, which is applied in the direction of temperature control sludge treatment, dewatering/drying/concentrating sludge treatment, etc., can solve problems such as water quality deterioration, land occupation, and water oxygen consumption.

Inactive Publication Date: 2007-06-13
陈梅铭 +2
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Problems solved by technology

At the same time, if the harmful substances contained in the sludge are piled up for a long time without disposal, they will cause great harm to the environment and human beings. At the same time, the organic matter, ammonia, nitrogen, etc. contained in the sludge will consume a large amount of oxygen in the water body, causing the deterioration of water quality.
Simple stacking not only takes up a lot of land

Method used

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  • City sludge comprehensive utilization

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specific Embodiment

[0016] Specific embodiments The treatment method of municipal sludge proposed by the present invention is further described in conjunction with the schematic diagram of the process flow and examples.

[0017] The process equipment adopted by the method of the present invention can be divided into five processing units: 1, sludge drying unit 2, sludge incineration processing unit 3, incinerator flue gas processing unit 4, steam turbine generator unit power generation unit 5, waste gas collection and processing Unit, 6, building materials production unit.

[0018] As shown in Figure 1: the equipment and process of each unit are described as follows: use the indirect steam sludge drying device 1 to dry the sludge with a moisture content of 80%-90% to about 20%-50%. The steam transfers heat to the sludge, condenses into water, and sends it back to the boiler. When the water contained in the sludge is heated and turned into steam, the exhausted steam is collected by the collection ...

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Abstract

This invention discloses a method for using city sludge in combination composed of 1, a sludge drying unit, 2, a burning and processing unit, 3, a smoke process unit, 4, a turbine-generator set generation unit, 5, a waste gas collection and process unit, 6, a producing unit for construction materials, which mainly utilizes the steam exhaust generated by the steam turbine set and waste steam generated when drying sludge.

Description

technical field [0001] The invention belongs to the field of municipal sludge treatment, and in particular relates to a method for treating municipal sludge with high environmental protection, resource utilization and volume reduction. Background technique [0002] In recent years, the process of urbanization has become more and more rapid, and the generation and treatment rate of urban domestic sewage have also increased. Although various methods have been adopted to reduce the output of urban sludge, the total amount is still increasing rapidly. increment. Sludge is a heterogeneous body composed of organic debris, bacteria, inorganic particles and colloids. It is difficult to carry out thorough solid-liquid separation by sedimentation. The mixed sludge produced by domestic sewage treatment and the biologically treated sludge produced by industrial wastewater are typical organic sludge, which is characterized by high organic matter content (60%-80%), fine particles (0.02-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12C02F11/18
Inventor 陈梅铭张信道平国明吴坚金黎明
Owner 陈梅铭
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