Domestic sewage treatment system and treatment process in ecological highway service area

A technology for domestic sewage and treatment systems, applied in biological water/sewage treatment, biological sludge treatment, water/sewage treatment, etc., can solve the problem of not considering wastewater separation and treatment, reduce energy consumption, reduce operating costs, improve safety effect

Active Publication Date: 2021-10-22
RES INST OF HIGHWAY MINIST OF TRANSPORT +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the technical problem that the treatment process for road service areas in the prior art does not consider the separation and treatment of wastewater from different sources, and further provides an ecological sewage treatment system and process for road service areas with separation and treatment functions

Method used

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  • Domestic sewage treatment system and treatment process in ecological highway service area
  • Domestic sewage treatment system and treatment process in ecological highway service area
  • Domestic sewage treatment system and treatment process in ecological highway service area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This embodiment provides a domestic sewage treatment system in an ecological highway service area, such as figure 1 As shown, it includes a kitchen sewage separation treatment device 5, which communicates with the kitchen drainage equipment 3, and the kitchen drainage equipment 3 includes a waste water pipe connected to the kitchen sink, which can collect catering oily waste water from the kitchen to form kitchen sewage.

[0034] The kitchen sewage separation treatment device 5 described in this embodiment is as follows: figure 2 As shown, it includes a cylinder, and a material inlet 51 and a waste water outlet 53 are respectively provided on two opposite wall surfaces of the cylinder, and the material inlet 51 communicates with the kitchen drainage equipment 3 . Between the material inlet 51 and the waste water outlet 53, two-stage partitions are sequentially arranged to divide the cylinder into a first cavity, a second cavity and a third cavity arranged in sequence a...

Embodiment 2

[0046] This embodiment provides a domestic sewage treatment system in an ecological highway service area, such as Figure 4 As shown, it includes a kitchen sewage separation treatment device 5, which communicates with the kitchen drainage equipment 3; the kitchen drainage equipment 3 includes a waste water pipe connected to the kitchen sink, which can collect catering oily waste water from the kitchen to form kitchen sewage.

[0047] The kitchen sewage separation treatment device 5 described in this embodiment is as follows: figure 2 As shown, including a cylinder body, a material inlet 51 and a waste water outlet 53 are respectively arranged on the two opposite wall surfaces of the cylinder body, and two-stage partitions are sequentially arranged between the material inlet 51 and the waste water outlet 53, The cylinder is divided into a first cavity, a second cavity and a third cavity arranged in sequence along the direction of waste water flow, the first cavity, the second ...

experiment example 1

[0060] In order to prove the technical effect of the domestic sewage treatment system in the ecological highway service area of ​​the present invention, the water inflow and the water discharge indicators of the domestic sewage treatment system in embodiment 1 and embodiment 2 are detected, the road service area in embodiment 1 The daily discharge of toilet sewage is 25-35 tons per day. In order to ensure the accuracy of the value, three samples are collected continuously when the operation is stable. The detection value is based on the average value of the three samples. The detection value of the water quality index is as follows :

[0061] Table 1: Detection values ​​of water quality indicators of the kitchen sewage separation and treatment device in Example 1:

[0062]

[0063] Table 2: Detection value of water quality index of toilet sewage separation and treatment system in embodiment 2:

[0064]

[0065] From the results of the above experimental examples, it can...

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Abstract

The application provides a domestic sewage treatment system in an ecological highway service area, including: a kitchen sewage separation and treatment device; a toilet sewage separation and treatment system, including a solid-liquid separation device, which is connected to the waste water outlet of the solid-liquid separation device. The hydrolysis and acidification device is further provided with a biological denitrification device and a constructed wetland in sequence downstream of the hydrolysis and acidification device; the waste water outlet of the kitchen sewage separation treatment device is connected to the water inlet of the constructed wetland; the solid waste fermentation device, the The feed port of the solid waste fermentation device is connected to the waste residue discharge port of the kitchen sewage separation treatment device and the solid material discharge port of the solid-liquid separation device. The treatment system in this application can realize the classified treatment of kitchen sewage and bathroom sewage, and realize the removal of ammonia nitrogen and COD in wastewater. The treatment device adopts artificial wetland, which can solve the problem that the water treatment structure occupies too large area and affects the landscape of the service area.

Description

technical field [0001] The invention belongs to a sewage treatment process, and in particular relates to an ecological type road service area domestic sewage treatment system and process. Background technique [0002] The sewage in the road service area is mainly domestic sewage, mainly including urine and feces drainage from the toilet, and some oily wastewater from the kitchen, which has the characteristics of high ammonia nitrogen content and large water volume fluctuations. [0003] In the prior art, when treating sewage in highway service areas, biological treatment methods are often used. For example, Chinese patent document CN106219905A discloses a sewage treatment process in expressway service areas. In this process, pretreated sewage passes through aerobic reactions successively. The biochemical reaction is carried out in the anoxic precipitation area, and then the solid-liquid separation is carried out through the membrane bioreactor, and finally it is discharged a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F11/04C02F101/16
CPCC02F1/40C02F3/301C02F3/32C02F9/00C02F11/04C02F2001/007C02F2101/16C02F2201/007C02F2201/009C02F2301/08C02F2303/10
Inventor 倪栋邵社刚王超张龙生邓志刚许兵袁旻忞赵静
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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