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Night-soil on-site treatment system and treatment method thereof

The technology of a treatment system and treatment method is applied in the field of feces on-site treatment system and its treatment to achieve the effects of remote operation, reduction of flushing water consumption, and odor-free treatment

Inactive Publication Date: 2016-05-04
SHENZHEN LONGJISHUN IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The source treatment facilities and equipment of feces are still in a blank stage. If the treatment is carried out at the source, the miniaturization of equipment and odor control must be solved. Therefore, it is not only necessary to realize the harmlessness of feces treatment, but also to solve the problem of miniaturization of composting equipment

Method used

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  • Night-soil on-site treatment system and treatment method thereof
  • Night-soil on-site treatment system and treatment method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides an in-situ feces treatment system, the system includes a screw elevator, a solid-liquid separation device, a screw-type sludge dehydrator, a dosing device and an aerobic fermentation device; the screw elevator, solid The liquid separation device, the screw stacking sludge dehydrator and the aerobic fermentation device are connected in sequence, and the dosing device is connected with the screw stacking sludge dewatering machine.

[0043] The solid-liquid separation device is an integrated solid-liquid separation machine, which is directly placed on the septic tank.

[0044] The system includes an odor collection system, which is used to collect and centralize the entire system for odor collection.

[0045] The rotating speed of the screw shaft in the screw-stacking sludge dewatering machine in the system is 2-5 r / min.

[0046] The system is a fully enclosed processing system.

Embodiment 2

[0048] Adopt the system described in embodiment 1 to carry out feces on-the-spot processing, its processing flow is as follows figure 1 shown.

[0049] Put the screw elevator in the septic tank, use the screw elevator to lift the feces into the solid-liquid separation device, separate the waste residue and waste liquid, and the separated waste residue will be landfilled or incinerated, and the separated waste liquid will be stored in In the buffer tank, the sewage is pumped to the stacked screw sludge dewatering machine for screw extrusion dehydration treatment. The rotation speed of the screw shaft is 3r / min. During the screw extrusion dehydration process, flocculant is added to it through the dosing device Polyacrylamide, the dosage of flocculant is 1.5g of flocculant per liter of liquid, the filtrate produced by screw extrusion dehydration is discharged, and the sludge obtained by screw extrusion dehydration has a water content of <70wt%. Send it to an aerobic fermentation...

Embodiment 3

[0052] The system described in Example 1 was used to process feces on site. During the treatment process, except that the rotation speed of the screw shaft was 2r / min, and the dosage of flocculant was 1g of flocculant per liter of liquid, other steps were the same as those in Example 1. 2 is the same.

[0053] The number of coliform bacteria in the finally prepared organic fertilizer is less than or equal to 100 / g, the death rate of roundworm eggs is 95%, and the water content is less than or equal to 30wt%.

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Abstract

The invention provides a night-soil on-site treatment system. The night-soil on-site treatment system comprises a screw elevator, a solid-liquid separating device, an overlap-spiral type sludge dewatering machine, a chemicals dosing plant and an aerobic fermentation device; wherein the screw elevator, the solid-liquid separating device, the overlap-spiral type sludge dewatering machine and the aerobic fermentation device are connected in sequence, and the chemicals dosing plant and the overlap-spiral type sludge dewatering machine are connected. According to the night-soil on-site treatment system and a treatment method thereof, urban night-soil is separated by a new night-soil pumping mode and working procedures such as solid-liquid separation, screw press dewatering, small dynamic aerobic fermentation, chunks of waste are transported to a refuse transfer station as household refuse, wastewater is transported to a sewage treatment plant via a sewer for treatment, and sludge is subjected to harmless treatment on site, all pollutants are well treated, meanwhile refuse reclamation can be performed to produce an organic fertilizer, the recycling use of resources is realized, and aims of harmlessness, reclamation and reduction of the treatment of the urban night-soil are truly achieved.

Description

technical field [0001] The invention belongs to the field of environmental protection, and relates to a feces treatment system and a treatment method thereof, in particular to an in-situ treatment system and a treatment method for feces. Background technique [0002] The treatment methods of urban manure mainly include composting, anaerobic fermentation to produce biogas and incineration. [0003] The composting method mainly uses the action of a variety of microorganisms to mineralize, humify and harmless the organic residues of plants, so that various complex organic nutrients can be transformed into soluble nutrients and humus. The high temperature (60-70°C) is generated to kill the germs, insect eggs and weed seeds brought in the raw materials, so as to achieve the purpose of harmlessness. [0004] Anaerobic fermentation in the biogas production method is a complex biological process. Carbohydrates, fats, and proteins in feces can be converted into methane under the con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/02C02F11/12C02F11/14
CPCC02F11/00C02F11/02C02F11/125C02F11/14Y02W10/20
Inventor 余光华
Owner SHENZHEN LONGJISHUN IND DEV
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