Method for treating sludge with water content of 80% in high speed and producing derivatives

A high-speed processing and manufacturing method technology, applied in the direction of oxidation treatment sludge, sludge treatment, biological sludge treatment, etc., to achieve the effect of saving land resources, beneficial to environmental protection, and short disposal time

Inactive Publication Date: 2019-05-24
李健
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the above-mentioned existing problems, overcome the defects of the existing sludge treatment technology, and provide a high-speed treatment method for sludge and sludge derivatives with a water content of ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Sludge is the sediment produced during the treatment of urban residents, institutions, and schools in the daily life of domestic sewage collected and discharged by the municipal pipe network and the mixed sewage generated when it rains, as well as floating water floating on the surface of sewage. Foamy residue, sludge with a water content of 80% after being treated by a sewage treatment plant;

[0075] Garbage incineration ash is a kind of waste residue discharged after high-temperature incineration of domestic waste for power generation. After sorting, magnetic separation to remove waste metal, drying, crushing, grinding, and screening, it is made into a particle size of less than 0.045mm. Powder;

[0076] The waste plants are the leaves, branches and grasses produced by urban landscaping workers when pruning urban greening and gardening, and the waste residue and sawdust produced in the process of wood processing. After sorting, crushing, drying, grinding and screenin...

Embodiment 2

[0079] Get 75kg of sludge with a water content of 80% prepared in Example 1, 25kg of waste incineration ash powder, 38kg of waste plant powder, 8kg of quicklime powder, 18kg of ferrous sulfate, 25kg of magnesium sulfate, 9kg of polyacrylamide, chlorine dioxide 10kg, use a double-shaft humidifying mixer to mix and stir evenly, wherein: the moisture content of the mixture should be controlled at 45% to 65%, the material should be grasped by hand to form agglomerates without water droplets, and the material will disperse when the hand is loosened. The carbon-nitrogen ratio is 25-30: 1. The pH is 6-8; transport it to the sealed high-temperature fermenter with a belt conveyor, start the heating system, and raise the temperature inside the fermenter to 80-100°C through oil and electric heat conduction, and keep it for 2 hours. The temperature is kept between 60 and 80°C, and 0.05 kg of special fermentation strains for sludge and 0.06 kg of thermophilic high-temperature active bacteri...

Embodiment 3

[0081] Get 68kg of sludge with a moisture content of 80% prepared in Example 1, 32kg of waste incineration ash powder, 28kg of waste plant powder, 8kg of quicklime powder, 14kg of ferrous sulfate, 18kg of magnesium sulfate, polyacrylamide 6kg, chlorine dioxide 7kg, use a double-shaft humidifying mixer to mix and stir evenly, wherein: the moisture content of the mixture should be controlled at 45% to 65%, the material should be grasped by hand to form agglomerates without water droplets, and the material will disperse when the hand is loosened. The carbon-nitrogen ratio is 25-30: 1. The pH is 6-8; transport it to the sealed high-temperature fermenter with a belt conveyor, start the heating system, and raise the temperature inside the fermenter to 80-100°C through oil and electric heat conduction, and keep it for 2 hours. The temperature is kept between 60 and 80°C, and 0.03 kg of special fermentation bacteria for sludge and 0.03 kg of thermophilic high-temperature active bacteri...

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Abstract

The invention relates to a method for treating sludge with water content of 80% in high speed and producing derivatives. The method is characterized in that the sludge with the water content of 80%, waste ashes, waste plants, quick lime, ferric sulphate, magnesium sulfate, polyacrylamide and chlorine dioxide are adopted to be uniformly mixed and delivered into a sealed high-temperature fermentation machine by using a belt conveyor, the temperature in a fermentation machine is increased to 100 DEG C through oil electric thermal conductivity, electricity is cut out after maintaining for 2 hours,the temperature is maintained to be 60 DEG C or above, fermentation is conducted by adding a thermophilic active compound bacterial agent, a fermentation stirring system is adjusted to an intermittent stirring function, the fermentation time of the sludge in the fermentation machine is 12 hours, and harmful microorganism eggs, weed seeds and pathogenic bacteria in the sludge are effectively sterilized; fermented clinker is prepared into a powder material after ageing, pulverizing and screening, and organic products are produced by an automatic electronic packaging machine after packaging. Themethod has the advantages that the difficult problem of treating the sludge with the water content of 80% is solved to achieve sludge resource utilization, and the pollution on the natural environment is reduced.

Description

technical field [0001] The invention relates to a high-speed method for processing sludge with a water content of 80% and sludge derivatives. Specifically, it uses urban sludge to carry out high-temperature rapid fermentation, disinfection, sterilization, drying, crushing, and screening using mechanized and fully automatic methods. The sludge derivative powder made after separation is used as the main raw material to produce soil restoration improver, organic compound fertilizer and bio-organic fertilizer, which belongs to the field of waste treatment. [0002] The present invention also relates to a method for producing the sludge derivative. Background technique [0003] Municipal sludge is domestic sewage generated by urban residents, government agencies, schools, and units in their daily lives and mixed sewage generated when it rains. The sewage is collected and discharged to the sewage treatment plant through the municipal pipe network. The sewage treatment plant adop...

Claims

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Application Information

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IPC IPC(8): C02F11/02C02F11/06C02F11/148C02F11/18C05F17/00C05G3/00C05G3/04C09K17/40C09K101/00C05G3/80
CPCC05G3/80C05F17/10C05F17/20C05F17/80C05D3/02C02F11/00C02F11/06C02F11/147C02F2303/02C02F2303/04C05D5/00C05D9/00C05D9/02C05F7/00C05F11/00Y02W30/40
Inventor 李健
Owner 李健
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